Top-rated water main install, replace or repairers.

Get matched with top water main install, replace or repairers in San Mateo, CA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Water main install, replace or repairers in San Mateo

Avatar for Green Arrow Plumbing
Green Arrow Plumbing
5.0(
40
)

Serving San Mateo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"The tech came out and did a thorough review of the problems with the water heater. Very thorough. It's a heat pump water heater. They decided not to bid. I'd call him again in a minute for something else."
Water Heaters Project
Plumbing Project
Plumbing Project
Plumbing Project
Drain replacement

+50

Response time9 hrs
Response rate90%
9 neighbors recently requested a quote
Avatar for In & Out Plumbing & Construction Inc
In & Out Plumbing & Construction Inc
4.2(
78
)

Serving San Mateo, CA and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Angel was prompt, professional and explained everything before during and after. He took care of our slow running drain, and installed new faucets. He was quick and efficient and clean."
San Francisco Sewer Line
Floor Drain
San Francisco Sewer Line
Floor Drain
San Francisco Sewer Line

+27

Response time1 day
Response rate97%
34 neighbors recently requested a quote
Avatar for Sugar Bear Plumbing, Inc.
Sugar Bear Plumbing, Inc.
4.4(
71
)

Serving San Mateo, CA and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"I had an old leaky shower that was driving my wife crazy. I changed out the valve washers myself to see if that addressed the problem. Unfortunately that didn't help; and I needed to go to the professionals. Lawrence did a great job at assessing the situation and providing his diagnosis. Throughout the entire process, he was very professional and clear describing the work he was performing and the possible outcomes, given that that my home was built in the 1950s. In the end, it all worked out. Lawrence was a pleasure to chat with."
Portfolio
Portfolio
Portfolio
Portfolio
Portfolio

+4

Response time5 hrs
3 neighbors recently requested a quote
Recommended by78%of homeowners
Avatar for Chandler's Plumbing
Chandler's Plumbing
4.3(
742
)

Serving San Mateo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2001

Free estimates

Emergency services offered

"Chandlers did a great job. They quoted the repair and got to work. We also added the replacement of the sewer line as the main water line was being replaced. Chandlers added two sewer cleanouts in the front for future access to the sewer and provide a convenient place to empty my RV black tank. I was very pleased with the rapid repair and accommodating the additional work. They made what could have been an ordeal but got it done in 4 days total. I would definitely recommend Chandlers again if the need arises for any other plumbing concerns"
Sewer Line Camera Inspection
Shut-Off Valve Repair
Main Water Line Replacment
Water Heater Installation
Tankless Water Heater Installation

+310

Response time4 hrs
420 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for DRAIN RIGHT PLUMBING & ROOTER INC
DRAIN RIGHT PLUMBING & ROOTER INC
5.0(
21
)

Serving San Mateo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"My water heater was leaking and I needed it fixed asap because we had no hot water and I have small kids at home. Robert came, he saw the problem and fixed it fast and efficiently. He was professional and polite and the price was right. I will definitely call him again in the future. And have recommended him to family and friends. Thank you Drain Right Plumbing!!"
Before
After
Water heater
Descaling tankless water heater
Toilet replacements

+34

Response time3 hrs
Response rate95%
14 neighbors recently requested a quote
Avatar for Jess Plumbing
Jess Plumbing
4.9(
48
)

Serving San Mateo, CA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Jesus repaired the leaking water pipes behind the shower valve. It was Sunday, but his response was quick and he showed up on time. I think he is the best honest plumber I ever met. He did a great job with reasonable price."
Plumbing Project
Plumbing Project
Plumbing Project /water main
Old gate valve/ doesn’t shut off water
Installed new Zoeller sewer tank lid

+178

Response time1 day
Response rate100%
Recommended by97%of homeowners
Avatar for FDL Plumbing, Inc.
FDL Plumbing, Inc.
5.0(
41
)

Serving San Mateo, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Credit card accepted

Customers say: True professional

"As a seasoned general contractor, my decade-long collaboration with FDL Plumbing has consistently impressed me. Their commitment to quality, reliability, and professionalism sets them apart in the industry. FDL Plumbing's punctuality and efficiency ensure that projects stay on track and meet deadlines. Their attention to detail guarantees excellent results, whether tackling complex installations or troubleshooting issues. Communication is seamless with FDL Plumbing, fostering strong collaboration and transparency. Their professionalism and integrity shine through in every interaction, making them a trusted partner for any project. FDL Plumbing's dedication to excellence makes them an invaluable asset. With their expertise, reliability, and integrity, you can trust that your plumbing needs will be met with precision and care."
Existing PRV
New 3/4 Pressure reducing Valve
Existing
New Kitchen Sink/Faucet/Disposal
New Home in Moraga CA

+10

Response time2 hrs
Response rate93%
1 neighbors recently requested a quote
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
719
)

Serving San Mateo, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"Can not imagine a better response, starting with my call for assistance, response time and how the technician, Tad methodically diagnosed the problem. We have an obscure kitchen fixture that required service in Feb 2019. Under warranty the problem was easily diagnosed by me, a problem possibly caused by me and a replacement part sent and installed by Albert Nahman team. Problem: I broke the faucet cartridge. Current Problem: restricted hot water flow in this kitchen sink only. Turns out the new cartridge part is now malfunctioning. I called and Tad arrived taking a step by step approach ruling out possible causes: a clog here or there, build up of sediment, or blockage in the lines or cartridge. The company that sells the product got on the phone with Tad and they collaborated on the problem and the tech person gave Tad one more thing to try. After the collaboration it is agreed, problem persisted and therefore that new cartridge part is now malfunctioning and will be shipped free of charge in two days. Thanks to all, who made this possible and I trust we will have Tad here again soon to finalize this fix. BTW, cost of service was less than expected given going rates for such a call lasting in excess of one hour. Another comment, spending time with Tad during the repair was a pleasure to have him explain, collaborate, listen and just chat. Questions on who to call next time, no question who I will call next time. I have read criticism of costs: In the Berkeley area "How much does it cost to hire a plumber? Some plumbers have a minimum fee for a service call. They might charge anywhere from $175-250 to come out and give you a consultation. Plumbers may give you a general service rate of $128-148 per hour when there are a lot of unknowns about a project and they aren't sure how long it will take. Some charge a flat rate for their plumbing services. For example, you may get charged $175 for a sink or drain cleaning, while toilet installation costs $500." Today costs are upfront, same as charges in Feb, $69 to arrive and assess the problem. Here in excess of one hour for $129 minus $25 coupon, total charge $173. I am ok and I expected these costs. If I was in Philly, where I grew up, I could call an uncle or cousin and get a better rate, a family rate. This is going rate for our area."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate99%
55 neighbors recently requested a quote
...
Showing 1-10 of 246
FAQs for water main install, replace or repair projects in San Mateo, CA

Most standard homeowners' policies don’t cover water main line replacement costs because this project is considered wear and tear, not sudden damage. Check your declarations page for exclusions and talk with your agent about add-on service-line coverage if you want help footing the bill for your water main line replacement costs.

Yes—hire a licensed plumber any time the job taps into a city-owned line or local codes. Professional plumbers carry the right permits, tools, and insurance, and they know how to avoid costly mistakes that could flood your yard or trigger fines. Pros can also provide expert recommendations on the type of system and materials that will work best for your situation, and they can guide you on best practices for ongoing maintenance.

The San Mateo, CA homeowners’ guide to water main install, replace or repairs

From average costs to expert advice, get all the answers you need to get your job done.