True Licensed & Insured · CA LIC #982663
Time Open 24/7 · Mon-Sun
Location Pacifica, San Francisco, Burlingame, CA · Serving the Bay

PACIFICA, CA • LIC #982663 • 24/7

Local Plumber

Plumber in San Mateo, CA

Licensed plumbing contractor serving San Mateo homes, apartments, and commercial properties. Family-owned, NuFlow certified, free estimates, open 24/7.

Get a Free Estimate

Upfront pricing. Same-day service. No obligation.

"*" indicates required fields

We’ll call you back fast, usually within the hour.

THIS MONTH’S BEST DEAL

$75
OFF

$75 OFF Any Plumbing Repair Over $500

One-time use. Combine with our 24/7 emergency service and pay only when the job is done. Mention this offer when you book.

Expires soon · Cannot be combined

San Mateo Plumbing Services for Homes, Apartments, and Businesses

Works Plumbing is a family-owned, C-36 licensed company serving San Mateo and the wider Peninsula since 2009. We provide 24/7 emergency services, free estimates, and lasting solutions.

Request your plumbing service online with Works Plumbing Repair and Drain Cleaning.

Low Water Pressure Diagnosis and Repair

Weak flow can result from a failing regulator, corroded supply line, or partially closed valve. We measure before replacing anything.

Pressure Regulator Replacement

Regulators fail closed or open, and both cause damage. We test static pressure, then replace and set the valve correctly.

Garbage Disposal Repair and Installation

We replace seized and leaking units and inspect the trap arm and branch drain that usually cause the jam.

Shower and Faucet Repair

Cartridges, valves, diverters, and tub spouts are rebuilt or replaced, and the supply stops behind them are checked simultaneously.

Water Softener and Hard Water Treatment

We test the supply and specify treatment matched to the result instead of selling equipment before knowing what the water contains.

Emergency Drain Unblocking

Backed-up kitchen, laundry, and main lines are cleared at any hour, then verified so the cause is documented rather than assumed.

Copper and PEX Pipe Repair

Pinhole leaks, split sections, and failed joints are repaired or replaced, and we pressure test the result before closing anything up.

Commercial and Multi-Unit Plumbing

Apartment buildings, offices, and storefronts, with the written documentation owners and property managers need for their records.

Trenchless Pipe Repair With NuFlow

Our NuFlow trenchless solutions apply to pressurized and non-pressurized piping. They address pinhole leaks through advanced corrosion, improve flow rate, and create a durable barrier between your piping and the water.

Why San Mateo Chooses Works Plumbing

  • Licensed California C-36 contractor #982663, and family-owned
  • Open 24 hours a day, seven days a week, with live dispatch overnight
  • Static pressure tested as part of routine service
  • Options presented where a problem has more than one fix
  • Apartment buildings and storefronts documented for managers
  • Certified NuFlow contractor for recurring pinhole leaks
  • Free estimates, and a written price you approve before anyone starts work

Small Leaks, Big Bills, and the Two-Minute Test That Finds Them

Household leaks are not a rounding error. EPA WaterSense reports the average household wastes more than 9,300 gallons a year and that nine percent of homes have leaks losing 50 gallons or more daily. The usual culprits are unglamorous: worn toilet flappers, dripping faucets, and tired valves.

San Mateo adds an accelerant. Water reaches hillside neighborhoods from higher pressure zones. Many older homes run a pressure regulator that failed years ago without anyone noticing. High pressure turns a flapper into a constant runner and shortens the life of supply lines and heaters.

So we put a gauge on the system. It takes two minutes and often explains the fixture that keeps failing and the bill that keeps climbing. Replacing a part without fixing the underlying pressure means replacing it again.

They showed up in under an hour, quoted me before touching anything, and cleaned up after. Exactly how it should be.

Verified Works Plumbing customer
Our crew on a recent job across the Peninsula.
Works Plumbing running a sewer camera on a San Mateo private lateral.

What San Mateo Area Customers Say

Ann E., 5-star Google review

“We had a very complicated plumbing issue with an old clogged pipe, and our technician was excellent at diagnosing the problem and working through a variety of different solutions. I would highly recommend this company for all of your plumbing needs. Will was especially helpful and went step-by-step through diagnosing the problem and developing several different options for us to consider. I would definitely hire them again.”

Chandra L., 5-star Google review

“Professional and courteous technician Wilfred did an amazing job replacing the tub diffuser. We are very pleased with the results. He went above and beyond to make sure client was satisfied”

Read more Google reviews.

Pro tip

Planning a remodel in San Mateo? Price the lateral inspection into the budget. Improvements at or above ninety thousand dollars trigger the requirement, not just a sale.

See how we handle it:

Prefer to listen? Catch this topic on our homeowner podcast:

▶

The Works Plumbing Podcast · Homeowner Tips

Book a Licensed San Mateo Plumber

We run 24 hours from three Bay Area offices, so calls from Baywood, Aragon, Hayward Park, Hillsdale, Shoreview, and downtown blocks reach a crew already working nearby.

Larger work such as a repipe or lateral replacement can be spread out with financing, and our current specials can help you save more.

Request a San Mateo plumber today.

Call 650-899-3542
What We Do

Plumbing Services That Actually Work.

From a dripping faucet to a full repipe, our licensed crew handles every plumbing job in San Mateo with the same precision, speed and care.
plumbing repair icon

Plumbing Repair

Pipes, faucets, fixtures, toilets, garbage disposals we fix what’s broken, fast.

Learn More
drain cleaning icon

Drain Cleaning

Hydro jetting, rooter service, camera inspection. Clogs gone, drains flowing.

Learn More
water heater icon

Water Heaters

Tank and tankless install, repair, and replacement. Hot water within 24 hours.

Learn More
water softener icon

Water Softeners

Whole-home water filtration, softeners, reverse osmosis, salt delivery.

Learn More
gas line icon

Gas Line Service

Installation, repair, leak detection performed by certified technicians.

Learn More
leak detection icon

Leak Detection

Non-invasive camera inspections find leaks fast without tearing up your home.

Learn More
24/7
emergency icon

Emergency Service

Burst pipes? Flooded basement? We answer the phone day, night, weekends, holidays.

Learn More
Free quote
repiping icon

Repiping & Trenchless

Whole-home repipe and trenchless sewer repair. Less mess, longer life.

Learn More
Membership

Rocket Rewards: Catching the Slow Leak Before the Bill Does

The leaks that cost the most are the ones nobody hears, which is exactly what scheduled service is for.

Rocket Rewards members receive an automatic 10 percent discount on all services with call-out charges waived, so checking pressure, flappers, and supply connections costs nothing to arrange.

Membership also includes periodic water heater inspection and flushing, scheduled priority over non-members, and price protection that holds your agreement rate through its term. Regular inspection reduces emergency calls by surfacing problems while they are still cheap to fix.

Review Rocket Rewards membership.

FAQ

FAQs About San Mateo Plumbing Services

Here are the questions we hear most. Don’t see yours? Give us a ring, a real human answers, day or night.

Still stuck?

Call us anytime: even at 3 AM. We’re here.

Call 650-899-3542

How do I know if my water pressure is too high?

A gauge on a hose bib answers it in two minutes. Anything above 80 psi static exceeds what the plumbing code permits without a regulator, and pressure in that range shortens the life of flappers, fill valves, supply lines, and water heaters. We test as part of routine service, so you usually find out before it costs you a fixture.

My toilet runs intermittently. Is that worth fixing?

Yes, and sooner than most people think. EPA figures put 9% of homes at risk of leaks that waste 50 gallons or more per day, and a silently running flapper is the most common single contributor. The part is inexpensive, the labor is short, and correcting the pressure behind it stops the replacement from failing early too.

Does weak flow in one fixture mean my pipes are shot?

Probably not. A single weak fixture usually points to an aerator, cartridge, or supply stop at that location. Weak flow at every fixture points to the regulator, the main supply line, or corrosion through the system. That distinction is why we ask which fixtures are affected when you book.

Do you handle apartment buildings and commercial properties?

Yes, and a meaningful share of our San Mateo work is multi-unit and commercial. We coordinate access with tenants, provide the written estimates and invoices owners and property managers need, and can schedule non-urgent work at hours that minimize disruption to residents or customers.

Will you give me choices instead of a single quote?

Where the problem allows more than one legitimate approach, yes. We solve recurring blockage by cleaning, a spot repair, or lining, and each buys you something different. Customers here have specifically mentioned being walked through the options, and you approve a written price before we start.

Nearby Areas We Serve

Just outside San Mateo.

We also cover Hillsborough, Burlingame, Foster City and Belmont on the same routes.

Real Customers

900+ five-star Google reviews.

We’ve earned our reputation one happy homeowner at a time.

Review Stars

“I had a backed up kitchen drain and David from Works Plumbing came out and cleared the line in a matter of minutes. Very professional and very knowledgeable. Definitely recommend!”

GG
George G.
Daly City · Yelp Review
Review Stars

“Great professional and quick service! Shamir was friendly, efficient, and professional. He fixed the leaking problem in my sink and garbage disposal in under an hour. Highly recommend!”

MR
Maria R.
Oakland · Google Review
Review Stars

“Thank you again for another job well done, and thank you for responding right away. I will continue to recommend Works Plumbing because they respond right away and get the job done efficiently.”

DK
David K.
San Mateo · Google Review
rating stars
4.8 / 5 Google, 900+ reviews
rating stars
4.0 / 5 Yelp, 180+ reviews
A+ BBB Accredited
Financing approval screen showing a 15,000 dollar approved amount with no prepay fee
Pay Your Way

BIG REPAIR?
SMALL PAYMENTS.

Plumbing emergencies don’t wait for payday. Spread your cost over 12, 24, or 60 months with affordable financing options through trusted partners.

  • 0% APR for 12 months
  • Approval in 60 seconds
  • No prepayment penalty
  • Soft credit check only
APPLY NOW (60 SEC)
SAVE MORE, STRESS LESS

COUPONS THAT WON’T DRAIN YOUR WALLET.

Share these with a neighbor, or just mention the special when you schedule. Every offer works by phone or online.

$50
OFF • DRAIN CLEANING

Clogged Drain Special

Drain cleared or it’s free. Limit one per household.rnrn

Mention this offer when you schedule EXPIRES 12/31/2026
$500
OFF • TANKLESS INSTALL

Go Tankless

Save $500 on a new tankless water heater install.rnrn

Mention this offer when you schedule Expires 12/31/2026
FREE
CAMERA INSPECTION

Free Sewer Camera

With any drain cleaning service over $250. See the problem yourself.

Mention this offer when you schedule Expires 12/31/2026
10%
OFF · SENIOR u0026 MILITARY

Senior u0026 Military Discount

Thank you for your service. Ongoing: no expiration.

Mention this offer when you schedule Valid year-round
$99
FLAT · TOILET INSTALL

Toilet Install Special

Labor only with purchase of new toilet. Includes haul-away.

Mention this offer when you schedule Expires 12/31/2026
$0
FREE · ESTIMATES

Free Estimates · Always

Honest pricing, no obligation. We won’t waste your time.

JUST CALL US Valid year-round
24/7
Works Plumbing mascot plumber illustration
ON CALL RIGHT NOW · AVERAGE PICKUP UNDER 60 SECONDS

Beyond
Great Service!
Call right now.

A real human will answer, dispatch a stocked Works van, and get someone at your door, usually in under an hour. No phone trees. No robots. No “we’ll get back to you Monday.”

4.8

900+ Reviews

< 60 min

Avg Response

24/7

Live Dispatch

FREE

Estimates