Plumbers on call now in Walnut Creek, 24 hours a day, 7 days a week Serving 94595, 94596, 94597 & 94598  |  (925) 887-6347
Walnut Creek Emergency PlumberLicensed local plumbers · Since 1993 (925) 887-6347
24/7 Emergency Plumber · Walnut Creek, CA

Walnut Creek Plumber for Emergencies, Drains, Sewer Lines and Water Heaters

Need a plumber in Walnut Creek right now? Call (925) 887-6347. A licensed plumber answers day or night, gives you an arrival window you can plan around, and shows up with the parts most jobs need already on the truck. We've been fixing plumbing from our North Main Street shop since 1993, from Rossmoor and Tice Valley to Northgate, Saranap, Walnut Heights and downtown.

  • Open 24 hours, including holidays
  • The plumber who comes out does the work
  • Written price before any work starts
  • Permits pulled and inspections scheduled
Since 1993Walnut Creek family business
24/7Live answer, nights and holidays
4.7★251 Google reviews
C-36California licensed plumbing contractor
What happens when you call

Need a plumber in Walnut Creek tonight? Here's exactly how it goes.

A plumbing problem rarely shows up at a good time. It's the shower that won't drain the morning of a big meeting, the water heater that quits the night before guests arrive, or the toilet that backs up during Thanksgiving dinner.

  1. A real person answersYou describe what you're seeing. If water is spreading, we walk you through shutting it off before we hang up.
  2. You get an honest arrival windowWe tell you when a plumber can realistically be at your door and call or text when they're on the way. If something changes, you hear it from us.
  3. Diagnosis before priceThe plumber finds the actual cause, shows you what they found (often with photos or a camera inspection) and explains your options in plain English.
  4. You approve a written priceNothing starts until you've seen and agreed to the price. Estimates are free, so you'll know the price ahead of time.
  5. Fixed, usually on the first visitOur trucks carry common parts for drains, water heaters, valves, supply lines and fixtures, so most repairs are done the same day.
  6. Clean up and testDrop cloths go down before work starts. When we finish, we run the water, check for leaks and leave your space the way we found it.

What to do while you wait for an emergency plumber

These few steps can save you thousands of dollars in water damage:

  • Shut off the water at the fixture first. Toilets and sinks have small oval valves underneath. Turn them clockwise until they stop.
  • If the leak won't stop, shut off the main. In most Walnut Creek homes the main shutoff is near the front of the house where the water line comes in, often close to a hose bib. Many homes also have a shutoff at the water meter near the street. Condo owners should check the utility closet or ask the HOA.
  • Turn off the water heater if the tank is leaking. On a gas heater, turn the control knob to "Off" or "Pilot." On an electric heater, switch off the breaker.
  • Stop using drains if sewage is coming up. Every flush or load of laundry sends more water toward the clog and into your house.
  • Smell gas? Leave first. Get everyone outside, don't flip switches or use a lighter, and call PG&E at 1-800-743-5000 or 911 from outside. Then call us for the repair.
  • Take photos. They help us bring the right parts and they help with any insurance claim.

Is it an emergency, or can it wait until morning?

Call right awayCan usually wait for a scheduled visit
Water spreading across a floor or coming through a ceilingA faucet that drips
Sewage backing up into a tub, shower or floor drainA toilet that runs now and then
No water at all in the houseOne slow drain that still empties
A water heater leaking from the tankLukewarm water from an older heater
The smell of gas (leave first, then call PG&E or 911)Low pressure at a single fixture
A burst or frozen pipeA noisy pipe or water hammer
The only toilet in the house is cloggedPlanning a fixture or water heater upgrade

If you're not sure, call. We'd rather talk you through a five-minute fix over the phone than send a truck you don't need, and we won't charge you after-hours rates for something that can safely wait.

Plumbing work we handle

Gas, sewer, leaks and drains, day or night

Emergency and 24-hour plumbing in Walnut Creek

Burst pipes, sewage backups, no hot water, a toilet overflowing at midnight: these don't wait for business hours, and neither do we. We answer around the clock, including weekends and holidays, because the calls that matter most usually come in after 5 pm.

Common emergency calls we get in Walnut Creek:

  • Burst or split supply lines under sinks and behind toilets
  • Main sewer line backups coming up through floor drains, tubs or the lowest toilet in the house
  • Water heaters leaking from the tank or the temperature and pressure relief valve
  • Slab leaks you can hear running when every fixture is off
  • Gas leaks at appliance connectors or the gas line
  • Frozen hose bibs and exposed pipes after a hard frost

If water is spreading or sewage is backing up, it's an emergency. If a faucet drips or a toilet runs, it's not, and we'll tell you that honestly so you don't pay after-hours rates for something that can wait until morning.

Full guide: 24/7 Emergency Plumber in Walnut Creek →

Drain cleaning: shower, tub, kitchen sink, toilet and laundry drains

Clogged drains are the most common reason people call a plumber, and they're the job local reviewers mention most. People want the drain cleared fast, cleared right, and not clogged again a week later.

Shower and tub drains. Hair and soap scum build a mat just below the stopper. We clear it with a hand or drum auger and, when the line is older, check whether the trap or drain arm is corroded and catching debris. Most shower clogs are cleared in under an hour.

Kitchen sink drains. Grease, food scraps and coffee grounds are the usual culprits. Hot water and dish soap move grease down the pipe, but it cools and sticks a few feet later. We clear the line and, if it keeps happening, run a camera to see whether the pipe has a belly or buildup that keeps catching waste.

Toilets. Most toilet clogs come from too much paper or things that shouldn't be flushed. If a plunger and a closet auger don't fix it, the problem is usually further down the line, which points to the main sewer line.

Laundry and floor drains. Lint and detergent sludge build up in laundry standpipes. A floor drain that gurgles or backs up when the washer drains often means a partial blockage in the main line.

When a drain needs more than a snake. If the same drain clogs again and again, or several fixtures are slow at once, we recommend a video camera inspection. It shows whether we're dealing with roots, a collapsed section, heavy scale or a sag, so you aren't paying for repeat cleanings that don't solve anything.

Hydro jetting. For grease-heavy kitchen lines and root-packed sewer lines, high-pressure water jetting scours the inside of the pipe instead of just punching a hole through the clog. Old, fragile lines need a camera check first, and we'll tell you if jetting is a bad idea for yours.

Skip the chemical drain cleaner. Store-bought drain chemicals generate heat and can damage older pipes and traps. If they don't clear the clog, they sit in the line and make the job more hazardous for whoever opens it next. A plunger or a mechanical cleaning is safer.

Full guide: Drain Cleaning in Walnut Creek →

Sewer line cleaning, camera inspection and repair

This is where Walnut Creek homeowners get surprised. Central Contra Costa Sanitary District, which everyone here calls Central San, is clear that you own your entire private sewer lateral, from your house all the way to where it connects to Central San's main. That includes the part under the sidewalk and the street, not just the section in your yard.

Central San names root intrusion as the leading cause of sewer backups. Trees and shrubs planted near the line send roots into joints and cracks, where they grow into a net that catches everything else. Grease, wipes and other items that shouldn't be flushed make it worse. Even wipes labeled "flushable" don't break down the way toilet paper does.

Signs your sewer lateral needs attention

  • Gurgling toilets when you run a sink or the washer
  • Water backing up into the tub or shower when you flush
  • More than one slow drain at the same time
  • Sewage smell in the yard or near the cleanout
  • Unusually green, lush patches of lawn over the line

What we do

  • Clear the line with a cable machine or hydro jetter
  • Camera inspect and give you the recording
  • Locate and mark the line and its depth
  • Repair or replace damaged sections, including trenchless options where the pipe and site allow
  • Install a cleanout if you don't have an accessible one
  • Install an overflow protection device

About overflow protection devices (OPDs). Central San recommends installing an OPD on the cleanout of your private lateral. If the line backs up, the OPD lets sewage escape outside instead of coming up through your lowest drain inside the house. They're inexpensive, but they should be installed by a licensed plumber because the elevation and location matter. An OPD won't protect you from a clog between the device and your house drains, so keeping the line clean still matters.

How often to clean your sewer line. If you have trees near the lateral, Central San recommends having it inspected or cleaned by a professional plumber at least every other year. In neighborhoods with mature trees, that's cheap insurance against a backup into your living space. Central San's Permit Counter is at (925) 229-7371 for questions about permits and OPDs.

Full guide: Sewer Line Repair in Walnut Creek →

Water heater repair and replacement: tank, tankless, gas and electric

"No hot water" is one of the most urgent calls we get. We repair and replace standard tank water heaters, tankless units, and gas and electric models from the brands found in most Walnut Creek garages, including Rheem, Bradford White, A.O. Smith, Navien, Rinnai and Noritz. We also install recirculation pumps for faster hot water at the tap.

Common water heater problems we fix

  • No hot water or not enough hot water
  • Pilot won't stay lit or burner won't fire
  • Water leaking from the tank, the drain valve or the temperature and pressure (T&P) relief valve
  • Rumbling or popping from sediment buildup
  • Rusty or discolored hot water, or a rotten egg smell
  • Tankless error codes, flame failures and scale buildup

Repair or replace? If the tank itself is leaking, it needs to be replaced. Tanks don't get patched. If it's a thermocouple, gas valve, element, thermostat or valve, a repair usually makes sense. We'll tell you the age of your unit (it's coded into the serial number), what we'd do if it were our house, and why.

The T&P valve is a safety device, not a nuisance. When a temperature and pressure relief valve drips or discharges, the water may be too hot, the pressure may be too high, or the valve may be worn out. Capping it or plugging the discharge line is dangerous. We find the cause, often high street pressure or a missing or failed thermal expansion tank, and fix that along with the valve.

California earthquake strapping is the law. California Health and Safety Code Section 19211 requires all new, replacement and existing residential water heaters to be braced, anchored or strapped to resist falling or moving in an earthquake. Every water heater we install is strapped to code. Sellers must also certify in writing to the buyer that the bracing requirement has been met, so a quick check before you list saves a scramble in escrow.

Permits. Water heater replacements generally require a permit in Walnut Creek. We pull the permit and schedule the inspection as part of the job. If you live in an unincorporated area such as Saranap, permits go through Contra Costa County instead of the city, and we handle that too.

Tankless water heaters. Tankless units save space and deliver endless hot water, but they need regular descaling and correctly sized gas lines and venting. Many tankless problems trace back to an undersized gas line or skipped maintenance, not a bad unit. We'll give you a straight answer on whether converting from a tank makes sense in your home.

Full guide: Water Heaters in Walnut Creek →

Leak detection and slab leak repair

Hidden leaks waste water, raise your bill and quietly rot subfloors, drywall and cabinets. You might notice:

  • A water bill that jumped without a change in how you use water
  • The water meter dial moving when every fixture is off
  • Warm spots on the floor (a hot water slab leak)
  • The sound of running water in a wall or under the floor
  • Musty smells, stains, bubbling paint or warped flooring
  • Low water pressure throughout the house

We use acoustic listening equipment, thermal imaging, pressure testing and line tracing to pinpoint leaks before anyone cuts into a wall or floor. Accurate location means smaller openings, faster repairs and less damage. Then we lay out your options: a spot repair, rerouting the line through the attic or walls, or repiping if the system is failing in several places.

Full guide: Leak Detection in Walnut Creek →

Repiping for older Walnut Creek homes

Walnut Creek grew fast after World War II. The city went from 9,903 residents in 1960 to 39,844 in 1970, and a large share of the homes standing today were built in that boom. Houses from that era were commonly plumbed with galvanized steel supply lines and cast iron or clay sewer lines. Galvanized pipe corrodes from the inside out, narrowing the opening until pressure drops and rust shows up in the water. After 50 to 70 years, many of those original systems are near the end of their life.

Signs it may be time to repipe

  • Low water pressure at several fixtures, especially upstairs
  • Brown or rusty water when you first turn on the tap
  • Repeated pinhole leaks in copper lines
  • Visible corrosion at pipe joints
  • Leaks showing up in different places within a year or two

We repipe with copper or PEX depending on your home, budget and preference, and explain the honest pros and cons of each. We map the route, minimize wall openings, keep water service running as much as possible, pull permits and coordinate patching. You'll know the plan, the price and the timeline before we start.

Full guide: Water Lines & Repiping in Walnut Creek →

Gas line installation and repair

We install and repair natural gas lines for water heaters, furnaces, ranges, dryers, fireplaces, outdoor kitchens and fire pits, and we pressure test every line before it goes into service. Gas work requires permits and inspections, and we handle both.

Gas safety matters in earthquake country. We replace old, uncoated brass appliance connectors with modern flexible connectors and can install a seismic gas shutoff valve that closes automatically during strong shaking. If you smell gas, leave the house first and call PG&E or 911 from outside.

Full guide: Gas Lines & Piping in Walnut Creek →

Toilets, faucets, garbage disposals and fixtures

The everyday jobs matter too. We repair and install:

  • Toilets, including running toilets, weak flushes, rocking toilets and wax ring leaks
  • Kitchen and bathroom faucets, including pull-down and touchless models
  • Garbage disposals that hum, jam, leak or won't turn on
  • Shower valves and cartridges for drips and temperature swings
  • Hose bibs, outdoor spigots and frost-proof replacements
  • Angle stops and supply lines, which fail more often than people expect
  • Dishwasher, ice maker and laundry connections

If you're replacing old toilets or fixtures anyway, ask us about high-efficiency models. Less water down the drain means lower bills and less load on your sewer lateral.

Water pressure, pressure regulators and water hammer

Pressure that's too high is as much of a problem as pressure that's too low. High pressure wears out faucet cartridges, toilet fill valves, washing machine hoses and water heater T&P valves, and it causes the banging you hear when a valve closes quickly (water hammer). Low pressure usually points to old galvanized pipe, a failing pressure reducing valve (PRV) or a leak. We test static pressure at a hose bib, replace failed PRVs, add thermal expansion tanks where required and install water hammer arrestors so your pipes stop knocking.

Full guide: Bathroom Plumbing in Walnut Creek →

Commercial plumbing for Walnut Creek businesses

Downtown Walnut Creek is packed with restaurants, shops, offices and salons, and a plumbing failure there costs a business real money every hour. We handle restaurant drain lines and grease buildup, hydro jetting, restroom fixtures and flush valves, water heaters for commercial kitchens and salons, and leak detection in multi-unit and mixed-use buildings, with after-hours scheduling so repairs don't shut you down during business hours.

Talk to a plumber now: (925) 887-6347

Local plumbing guide

Why plumbing in Walnut Creek is different

Every city has clogged drains and broken water heaters. What changes from place to place is why things fail, who's responsible for what, and which rules apply. Here's what makes Walnut Creek its own case.

The houses: mid-century homes with original plumbing

Walnut Creek incorporated in 1914, but most of its growth came after Broadway Shopping Center (now Broadway Plaza) opened in 1951 and the postwar suburbs filled in around it. In the 1960s the population roughly quadrupled, so a large number of homes here are 55 to 70 years old. What that looks like on real jobs:

  • Galvanized supply lines narrowed by internal rust, causing low pressure and discolored water
  • Cast iron drain lines that scale up, crack or rust through at the bottom
  • Clay sewer laterals with joints every few feet, giving roots plenty of ways in
  • Older shutoff valves that have seized and won't close when you need them

Your water: EBMUD or Contra Costa Water District

Walnut Creek is split between two water providers, East Bay Municipal Utility District (EBMUD) and Contra Costa Water District (CCWD). Your address decides which one, and your water bill shows it.

  • EBMUD water comes mainly from the Mokelumne River watershed in the Sierra and is soft. EBMUD lists its hardness range as 1 to 7 grains per gallon, so most EBMUD homes don't need a softener.
  • CCWD water comes mainly from the Sacramento-San Joaquin Delta through the Contra Costa Canal, with Los Vaqueros Reservoir used to blend and protect quality. Delta water changes with the seasons, and salinity runs higher in summer.

Water chemistry affects scale in water heaters and tankless units and whether treatment equipment is worth buying. We check your provider first and won't sell you a softener you don't need.

Trees, open space and roots

In 1974 the city funded the purchase of about 1,800 acres of open space with a $6.7 million bond, and today Walnut Creek is ringed by Shell Ridge, Lime Ridge, Acalanes Ridge and the foothills of Mount Diablo. Mature oaks and landscape trees line many residential streets. It's a big reason people love living here, and a big reason root intrusion in sewer laterals is such a common call. Before removing or trimming a large tree to solve a sewer problem, check the city's tree rules. Regular cleaning or lining the pipe is often a better answer than losing the tree.

Climate: hot summers, frosty mornings, rainy winters

Walnut Creek has a Mediterranean climate. Summer highs usually sit in the 80s, heat waves push past 100°F and the record high is 115°F. Winters are mild and wet with frequent morning frost, and the record low is 17°F.

  • Frost nights freeze exposed hose bibs, irrigation backflow preventers and pipes in unheated garages. During the December 2022 freeze warning, residents were told to wrap or cover exposed outdoor pipes.
  • The rainy season loads the ground and the sewer system, so root-damaged laterals often show their first backups in winter.
  • Summer heat puts irrigation to work, and cracked lines show up as a spike on the water bill.

Earthquakes: water heaters and gas lines

The Bay Area is earthquake country. Strapping water heaters isn't optional in California, and flexible gas connectors plus a known, working gas shutoff are basic safety steps. We check both on every water heater and gas job, and we can add a seismic gas shutoff valve that closes on its own during strong shaking.

Permits: city or county

Most of Walnut Creek is inside city limits, where plumbing permits go through the City of Walnut Creek's planning and building office at 1666 North Main Street, (925) 943-5800. Some neighborhoods, including Saranap, are unincorporated and fall under Contra Costa County instead. We know which applies to your address. Permitted work protects you when you sell, when you file an insurance claim, and when something needs fixing years later.

Utilities and who to call

Who handles what in Walnut Creek

When something goes wrong, knowing who owns which part of the system saves time. Here's the short version for Walnut Creek homeowners.

Utility or officeWhat they handleWhere the plumber comes in
EBMUD (ebmud.com)Water service for part of Walnut Creek, up to and including the meterEverything on your side of the meter: main line, shutoffs, PRV, supply lines, fixtures
Contra Costa Water District (ccwater.com)Water service for the rest of Walnut Creek, up to and including the meterSame as above: your side of the meter is yours
Central San, Permit Counter (925) 229-7371The public sewer main, plus permits and guidance for private laterals and overflow protection devicesYour entire private lateral, from the house to the main, including under the street
PG&E, gas emergencies 1-800-743-5000Gas service up to the meter and gas leak emergenciesGas piping and appliance connections after the meter
City of Walnut Creek, planning and building (925) 943-5800Plumbing permits and inspections inside city limitsWe pull permits and schedule inspections for you
Contra Costa CountyPermits for unincorporated areas such as SaranapWe handle county permits too
Neighborhoods we serve

Walnut Creek neighborhoods and communities

We work in every part of Walnut Creek and the unincorporated pockets around it, with all four ZIP codes covered: 94595, 94596, 94597 and 94598.

AreaWhat to know about the plumbing
Downtown, Civic Park and Larkey ParkA mix of older single-family homes, condos and newer multifamily buildings. Condo leaks often involve neighbors and HOAs, so clear documentation matters.
Northgate, Walnut Heights, Castle Hill and Diablo ShadowsMany homes on larger lots with mature trees, which makes root intrusion in sewer laterals a frequent issue.
Rossmoor and Tice Valley (94595)Rossmoor is a 55+ community of co-ops, condos and some single-family homes. Shared walls and shared lines can split responsibility between owner and community.
SaranapUnincorporated, so permits go through Contra Costa County instead of the city.
Parkmead, Rancho Paraiso, Rudgear Estates and Livorna EstatesEstablished neighborhoods where many homes date from the mid-century building boom.
Lakewood, Homestead, Creekside, Summit Ridge and OverlookA mix of mid-century homes and later construction. Supply line age and water heater condition vary a lot from house to house.
Carriage Square and Walnut KnollsCheck HOA rules before exterior or sewer work in planned communities.
Shadelands areaOffices and businesses alongside residential streets. Commercial plumbing and after-hours service.

We also serve nearby Pleasant Hill, Lafayette, Alamo and Concord.

Plumbing help for Rossmoor residents

Rossmoor is a community within the community. Development began in 1963 in the Tice Creek Valley, and today about 9,800 residents live in 6,676 homes across roughly 1,800 acres. At least one resident in each home must be 55 or older, and the nonprofit Golden Rain Foundation manages the community. Most homes are cooperatives and condominiums, with about 40 percent in garden-style duplexes to fourplexes and the rest in mid-rise and high-rise buildings, plus a smaller number of single-family homes.

  • Who's responsible depends on where the problem is. Fixtures and lines inside your unit are often the owner's job, while shared lines and building systems may fall to your mutual or the community. Check your governing documents or ask management before major work. We'll coordinate with whoever is responsible and document what we find.
  • Leaks travel. In attached homes, a leak in one unit can show up in another. Fast leak detection limits the damage and the dispute.
  • Aging water heaters and fixtures. Proactive replacement of old water heaters, shutoff valves and toilets is calmer than an emergency.
  • Easier-to-use fixtures. Comfort-height toilets, lever handles, handheld showers and anti-scald valves make daily life easier and safer. We install them.

On a fixed income? Ask about our senior discount when you call. Full Rossmoor plumbing guide →

Walnut Creek history, plumbing-wise

A short history that explains your pipes

The age of a house tells a plumber a lot before the first wrench comes out. Walnut Creek's growth came in waves, and each wave left its own kind of plumbing behind.

There's one detail most residents never notice: the creek the city is named after runs underground through downtown in a series of tunnels.

Walnut Creek had 70,127 residents and 32,246 households at the 2020 census, in a mix of single-family neighborhoods, townhome communities, downtown condos and Rossmoor. A plumber here works on everything from 1960s ranch houses to high-rise condo stacks.

  • 1850sSettlers gather at "The Corners," where the roads met near the creeks.
  • 1891Southern Pacific Railroad service arrives.
  • 1914Walnut Creek incorporates as a city.
  • 1951Broadway Shopping Center opens, the first major retail center in Contra Costa County.
  • 1960sPopulation jumps from 9,903 to 39,844. Much of today's housing, and much of its original galvanized and cast iron plumbing, dates from this boom.
  • 1963Construction begins on Rossmoor.
  • 1974Voters fund about 1,800 acres of open space, the trees that keep sewer laterals busy.
  • 1993Our family business is founded and starts serving Walnut Creek.
Around town

Landmarks, amenities and the routes we drive every day

Where you'll see our trucks

From the shops at Broadway Plaza to the homes around Heather Farm Park and the Gardens at Heather Farm, we work in every corner of the city. Other local landmarks we pass on the way to jobs:

Mount DiabloLesher Center for the ArtsBedford GalleryCivic ParkShadelands Ranch MuseumRuth Bancroft GardenLindsay Wildlife ExperienceOld Borges RanchShell Ridge Open SpaceLime Ridge Open SpaceAcalanes RidgeCastle Rock ParkDiablo Foothills Regional Park

Mount Diablo's peak occasionally gets a dusting of snow in cold storms. When it does, the valley floor usually gets a frost hard enough to freeze an exposed hose bib.

Commute corridors and response routes

Walnut Creek sits at the junction of Interstate 680, which runs north toward Sacramento and south toward San Jose, and State Route 24, which runs west through the Caldecott Tunnel to Oakland and San Francisco. BART's Yellow Line stops at Walnut Creek station beside I-680 and at Pleasant Hill station in the Contra Costa Centre Transit Village just north of town. Ygnacio Valley Road, Treat Boulevard, North Main Street and Mt. Diablo Boulevard carry most local traffic.

Those same corridors decide how fast we reach you. Our shop sits on North Main Street near the I-680 and Highway 24 interchange, and we route plumbers by where they are and what traffic is doing, so you get an honest window rather than a promise we can't keep at rush hour.

Property taxes, ownership and plumbing

Prop 13, long ownership and the plumbing nobody has looked at

Under California's Proposition 13, the base property tax rate is 1 percent of assessed value, and assessed value can rise by no more than 2 percent a year until the home sells. Local bonds and assessments are added on top. Because of that, many California homeowners stay put for decades, and a home that hasn't changed hands in a long time may still have its original water heater location, supply lines and sewer lateral.

If you've lived in your home for 20 years or more and never had the sewer line scoped or the supply lines checked, it's worth doing before a small problem becomes a big one. If you're buying, a sewer camera inspection before closing is one of the best few hundred dollars you can spend. The lateral is yours the moment you get the keys.

Buying or selling in Walnut Creek: a plumbing checklist

For buyers

  • Sewer camera inspection. A general home inspection usually doesn't include one. Ask for a recorded inspection of the lateral from the cleanout toward the street, and keep the video.
  • Supply line material. Galvanized lines in a mid-century home are a budget item to plan for.
  • Water heater age and strapping. Read the date code and confirm it's strapped. The seller must certify it is.
  • Signs of past leaks. Stains under sinks, patched drywall near bathrooms, warped flooring around toilets.
  • Permits for past work. Ask whether replaced water heaters, sewer lines or plumbing were permitted.

For sellers

  • Fix the easy items first. Running toilets, dripping faucets and slow drains show up on every inspection report.
  • Strap the water heater. You'll need to certify it anyway.
  • Know your sewer line. Scope it before listing and you control the story instead of finding out in escrow.
Seasonal plumbing calendar

What to watch for, season by season, in Walnut Creek

Late fall and the holidays

  • Kitchen drains take a beating. Scrape plates into the trash or compost, keep grease out of the sink, and run the disposal with plenty of cold water.
  • Guest bathrooms get overloaded. Keep a plunger in every bathroom and ask guests not to flush wipes.
  • Water heaters work harder. If yours is 10 to 12 years old or struggling, have it checked before the house fills up.
  • Walnut Creek on Ice sets up in Civic Park each winter; the 2025 season ran November 21, 2025 to January 19, 2026. Hosting before or after the rink? The same kitchen and bathroom tips apply.

Winter

  • Frost nights: disconnect hoses, cover hose bibs, insulate pipes in unheated garages and wrap the irrigation backflow preventer.
  • Rain season backups: if drains gurgle after a storm, call before it overflows.
  • Know your shutoffs: make sure everyone knows where the main is and that the valve actually turns.

Spring

  • Irrigation startup: turn systems on slowly and walk the yard for broken heads, leaking valves and soggy spots.
  • Sewer line check: a good time for a camera inspection where trees are near the lateral.
  • Water heater flush: draining sediment keeps a tank running efficiently and quietly.

Summer

  • Heat waves: watch the water bill for spikes that point to a hidden leak.
  • Vacations: shut off the main, or at least the washer and water heater supply, before a long trip.
  • Lawn conversion: ask your water district about rebates before you start.

Year-round

  • Earthquake readiness: water heater strapped, gas shutoff located, wrench nearby.
  • Test the T&P valve on your water heater once a year, or have us do it.
  • Replace washing machine hoses every five years, or sooner if they bulge or crack.

Plumbing problem right now?

Don't wait for the season to change. A licensed plumber is on call tonight.

(925) 887-6347
Plumbing costs in Walnut Creek

What changes the price of a plumbing job

Most plumbers won't put a number on their website because every house is different. We'd rather show you what moves the price, then give you a free written estimate before any work starts. You'll know the price ahead of time.

  • Access. A clog reachable from a cleanout costs less than one that means pulling a toilet or going through the roof vent.
  • Time of day. After-hours and holiday emergency calls cost more than scheduled weekday work. If it can safely wait, we'll say so.
  • Pipe material and age. Older galvanized and cast iron systems take more care and sometimes more parts.
  • Permits. Water heaters, repipes, gas lines and sewer replacements usually need permits and inspections, which add fees and time.
  • Equipment. Camera inspection, hydro jetting and trenchless repair use specialized equipment a basic snaking doesn't.
  • Parts and fixtures. A standard 50-gallon gas water heater and a high-efficiency tankless unit are very different purchases.
Our pricing promise: a free written estimate before work begins. If we find something unexpected once the job is underway, we stop and talk to you before doing anything that changes the price. Seniors, ask about our discount.
Hiring a plumber

How to choose a plumber in Walnut Creek (even if it's not us)

There are a lot of plumbing ads in the 925. Some lead to established local companies; some lead to call centers that sell the job to whoever is free. Here's how to tell the difference.

  1. Check the license yourself. Every California plumbing contractor needs a C-36 license from the Contractors State License Board. Look it up at cslb.ca.gov to see whether it's active and whether bond and workers' comp are on file.
  2. Make sure the name, address and phone match. Different business names or numbers on every page is a red flag.
  3. Ask who's actually coming. You want a licensed plumber, not a salesperson.
  4. Get the price in writing first. "We'll see when we get there" is fine for diagnosis, not for the repair.
  5. Ask about permits. A plumber offering to skip one is risking your insurance and your home sale.
  6. Ask about the warranty on labor and parts, in writing.
  7. Watch for drain-cleaning bait. A rock-bottom teaser price that becomes an expensive upsell is a well-known pattern.
  8. Read reviews for specifics: technician names, arrival times and the actual problem fixed.
Why Walnut Creek calls us

Built around what five-star plumbing reviews actually say

Read local plumbing reviews and the same things come up again and again: the plumber showed up on time, found the real problem, had the part, fixed it quickly and charged a fair price. So that's what we built our service around.

On-time arrival windows

A realistic window, and a call or text when we're on the way.

A licensed plumber at your door

The person who comes out is the person who does the work.

Parts on the truck

Stocked for most drain, water heater, valve and fixture repairs, so you're not waiting days for a second visit.

Diagnosis before price

We find the cause, show you, then quote in writing. Estimates are free.

Clean, careful work

Shoe covers, drop cloths and a cleanup before we leave.

Permits handled

We pull them, schedule inspections and give you the paperwork.

4.7 on Google from 251 reviews (October 2026)
One recent Google reviewer wrote that Kevin solved their problem and fixed their water leak in a timely manner.
Read our Google reviews
Mo Williams, owner, smiling from the driver's seat of a company service van in Walnut Creek

Mo Williams, owner

Meet the owner

Meet Mo Williams, our owner

You can tell a lot about a team by looking at its leader: integrity, attitude, how they treat people. So we'd like to introduce you to our owner, Mo Williams.

Mo was born and raised in the Bay Area and educated at Diablo Valley College (DVC), CSU Chico, UC Berkeley and, finally, the University of British Columbia.

In his younger years, Mo was a top-ranked national and international gymnast, and later as an acclaimed and much-loved coach. He captained the gymnastics teams at both DVC and CSU Chico, where he also served as student body Vice President.

After Chico, Mo moved to UBC to work on his master's degree and compete for a couple more years. He captained the UBC gymnastics team and went on to become head coach of the British Columbia gymnastics team at the Canada Games. He also married the love of his life, Ann, who is now the company's CFO.

Mo started a new chapter when he and his young family came home to the Bay Area to be closer to their large extended families. He learned plumbing and construction products and installation from the inside out at Simon's Hardware in Walnut Creek (remember it?) and at Home Depot in Concord. That hands-on background is the foundation of the team Walnut Creek has counted on since 1993.

Call Mo's team: (925) 887-6347

Memberships and certifications

Rooted in the Walnut Creek community

Walnut Creek Chamber of Commerce and Visitors Bureau member logo
Walnut Creek Chamber of Commerce & Visitors Bureau
PHCC Plumbing-Heating-Cooling Contractors Association logo
Plumbing-Heating-Cooling Contractors Association
BBB Accredited Business A+ rating logo
BBB Accredited Business, A+
PG&E logo
PG&E
Savings and rebates

Saving water and money in Walnut Creek

  • Lawn conversion rebates. EBMUD and Contra Costa Water District each offer residential customers up to $2,000 for replacing lawn with low-water plants. Check your bill for your district, then its current program before you start.
  • No city rebate. The City of Walnut Creek doesn't run its own water rebate program, so the water districts are where to look.
  • Free recycled water. Central San runs a recycled water fill station where residents can pick up recycled water for irrigation at no charge.
  • Fix leaks first. A running toilet or dripping faucet wastes water around the clock and is usually the fastest payback in plumbing.
  • Upgrade fixtures when they fail. A high-efficiency toilet, showerhead or faucet saves water for years.

Your Walnut Creek plumbing emergency checklist

Print this and stick it inside a kitchen cabinet.

  • I know where my main water shutoff is, and I've tested that it turns
  • I know where my water meter is and how to read the leak indicator
  • I know where my gas shutoff is, and there's a wrench nearby
  • My water heater is strapped and the T&P line drains to a safe spot
  • I know where my sewer cleanout is, and it has an overflow protection device
  • I know whether my water comes from EBMUD or CCWD
  • I've saved (925) 887-6347 for nights, weekends and holidays
Questions we hear every week

Frequently asked questions about plumbing in Walnut Creek

How fast can a plumber get to me in Walnut Creek?

For emergencies we dispatch the nearest available licensed plumber and give you a real arrival window when you call. Timing depends on where our plumbers are and on traffic along I-680 and Highway 24, so we tell you honestly rather than promise a number we can't keep. We call or text when the plumber is on the way.

Do you really answer 24 hours a day, including holidays?

Yes. A person answers around the clock, every day of the year, including Thanksgiving, Christmas and New Year's. If your problem can safely wait until regular hours, we'll tell you, so you don't pay emergency rates for something that isn't an emergency.

Do you charge more for nights, weekends or holidays?

After-hours emergency service costs more than scheduled weekday work because a plumber is coming out on short notice. We tell you the after-hours rate on the phone, before anyone is dispatched. Written estimates are always free.

Who is responsible for the sewer line under the street, me or Central San?

In Central San's service area, the property owner is responsible for the entire private sewer lateral, from the house to the connection at Central San's main. That includes the section under the sidewalk and the street. Central San maintains the main itself.

What is a sewer overflow protection device and do I need one?

An overflow protection device (OPD) sits on your sewer cleanout outside the house. If the lateral backs up, sewage escapes through the OPD outdoors instead of coming up through your lowest drain inside. Central San recommends installing one, and it should be installed by a licensed plumber because its height and location matter.

Why does my sewer back up in winter?

Roots are the leading cause of sewer backups in Central San's area. They enter through joints and cracks and form a net that catches waste. Winter rain adds more water to the system, so a line that was partly blocked all summer often backs up after the first big storms.

How often should I have my sewer line cleaned?

If you have trees near your sewer lateral, Central San recommends having it inspected or cleaned by a professional plumber at least every other year. If you've had a backup before, a camera inspection will tell us whether yearly maintenance makes sense.

Is my water EBMUD or Contra Costa Water District, and does it matter?

Walnut Creek is served by both, depending on your address, and your water bill shows which one. EBMUD water is soft, with a hardness range of 1 to 7 grains per gallon. CCWD water comes mainly from the Delta and its quality varies by season. The source affects scale buildup in water heaters and whether treatment equipment is worth buying.

Do I need a water softener in Walnut Creek?

If EBMUD serves your home, usually not, because its water is soft. If CCWD serves you, or you're seeing heavy scale on fixtures or in a tankless water heater, we'll look at the actual conditions in your home before recommending anything.

Do I need a permit to replace a water heater in Walnut Creek?

Water heater replacements generally require a plumbing permit and inspection. Inside city limits that goes through the City of Walnut Creek; in unincorporated areas like Saranap it goes through Contra Costa County. We pull the permit and schedule the inspection as part of the job.

Does my water heater need earthquake straps?

Yes. California Health and Safety Code Section 19211 requires new, replacement and existing residential water heaters to be braced, anchored or strapped against earthquake movement. When you sell your home, you must also certify in writing to the buyer that the water heater meets this requirement.

How do I know if my water heater needs to be replaced instead of repaired?

If the tank itself is leaking, it needs to be replaced. If the problem is a thermocouple, gas valve, element, thermostat or valve, a repair usually makes sense. Age matters too, so we read the date code on your unit and tell you whether repair money is well spent.

Why is my water heater's relief valve leaking?

The temperature and pressure relief valve opens when the water is too hot, the pressure is too high, or the valve itself is worn. High street pressure and a missing or failed expansion tank are common causes. Never cap or plug the valve. Have the cause found and fixed.

How do I know if my older Walnut Creek home needs repiping?

Low pressure at several fixtures, rusty water when you first turn on the tap, repeated pinhole leaks and visible corrosion at joints all point toward failing pipes. Many homes built during Walnut Creek's 1960s boom still have galvanized supply lines, which corrode from the inside. We can inspect and test your system before you decide.

How long does it take to unclog a shower drain?

Most shower and tub clogs are cleared in under an hour. If the clog keeps coming back or other drains are slow too, the problem is likely further down the line, and a camera inspection will show what's going on.

Should I use a chemical drain cleaner first?

We recommend against it. Chemical drain cleaners can damage older pipes and traps, and if they don't clear the clog, the chemicals sit in the line and make the repair more hazardous. A plunger or a mechanical cleaning is safer.

Who fixes plumbing in a Rossmoor co-op or condo?

It depends on where the problem is and what your community's governing documents say. Fixtures and lines inside your unit are often the owner's responsibility, while shared lines and building systems may belong to the mutual or the community. Check with management, and we'll coordinate with whoever is responsible.

Do you offer discounts for seniors?

Yes. Ask about our senior discount when you call. Many of our customers in Rossmoor and across Walnut Creek are on fixed incomes, and we want the price to be clear and fair from the start.

How can I check that a plumber is licensed in California?

Ask for the CSLB license number and look it up at cslb.ca.gov. Plumbing contractors hold a C-36 license. The lookup shows whether the license is active, who holds it, and the status of the bond and workers' compensation coverage. Our license number is listed at the bottom of this page.

What should I do if I smell gas?

Leave the house right away with everyone in it. Don't flip light switches, use a lighter or start a car in an attached garage. Call PG&E at 1-800-743-5000 or 911 from outside. Once the utility has made the situation safe, call us to find and repair the leak.

Are there rebates for water-saving upgrades in Walnut Creek?

EBMUD and Contra Costa Water District each offer residential customers up to $2,000 for replacing lawn with low-water plants. The City of Walnut Creek doesn't have its own rebate program. Central San also offers free recycled water for irrigation at its fill station.

What areas do you serve?

All of Walnut Creek, including ZIP codes 94595, 94596, 94597 and 94598, and neighborhoods such as Rossmoor, Tice Valley, Saranap, Parkmead, Northgate, Walnut Heights, Castle Hill, Lakewood and downtown. We also serve Pleasant Hill, Lafayette, Alamo and Concord.

Who owns LeapFrog Plumbing?

LeapFrog Plumbing is owned by Mo Williams, the Head Frog, a Bay Area native who learned plumbing products and installation at Simon's Hardware in Walnut Creek and Home Depot in Concord. His wife Ann is the company's CFO. LeapFrog has served Walnut Creek since 1993.

Call a Walnut Creek plumber

Call a Walnut Creek plumber who shows up and gets it fixed

A real person answers 24 hours a day, 7 days a week. Tell us what's happening and we'll give you an honest arrival window and a free written estimate before any work starts.

Call now, day or night

(925) 887-6347
  • Licensed plumber, not a salesperson
  • Free written estimate before work begins
  • Senior discount, ask when you call
  • Mastercard and Visa accepted
  • Non-urgent questions: balzaparis@gmail.com
Call (925) 887-6347

Water or sewage spreading? Shut off the fixture or main valve, then call. Smell gas? Leave first and call PG&E at 1-800-743-5000 or 911 from outside.

Walnut Creek Emergency Plumber
2108 N. Main Street, Suite F
Walnut Creek, CA 94596
Phone: (925) 887-6347
Email: balzaparis@gmail.com
Open 24 hours, 7 days a week
Call (925) 887-6347, 24/7