Top-rated water main install, replace or repairers.

Get matched with top water main install, replace or repairers in Los Altos, 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 Los Altos

Avatar for Escamilla Plumbing and Rooter Inc.
Escamilla Plumbing and Rooter Inc.
5.0(
50
)

Serving Los Altos, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Emergency services offered

Warranties offered

"Gustavo from Escamilla Plumbing responded quickly to my call for help in determining whether to repair the existing toilet. I reviewed our history of the 14 year old Toto and our current problem with the small amount of water left after flushing. He adjusted the fill valve and made adjustments to shower valve and sink faucet. Gustavo listened attentively to my existing problems and was very professional in determining his actions and I plan to use his services again."
Plumbing Project
Electric Heat Pump Water Heater
Shower Valve
Shower Area Remodel
New Bidet

+167

Recommended by84%of homeowners
Avatar for Fluid Dynamics Plumbing Inc
Fluid Dynamics Plumbing Inc
5.0(
35
)

Serving Los Altos, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"Cesar came to consult on my leaking water heater, was super friendly and gave me a few options to choose from. Since my issue was a bit urgent, they were able to source a 75 gal water heater and by the afternoon they were able to start installation. Vincent came to do the installation and he was super friendly as well. He took care to dry up any water spillage, and tidied up and took time to answer my questions before leaving. Thanks to those two who love and take pride in their work."
Water Heater Repair
Wall Water Heater
Trench Install
Trench Install
Trench Install

+13

Response time1 day
10 neighbors recently requested a quote
Avatar for Aaron's Plumbing & Rooter
Aaron's Plumbing & Rooter
4.8(
103
)

Serving Los Altos, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"I normally don't call for help. I am the type of person who would try to fix things myself before I seek for help. Almost a month ago when my old tankless water heater kept giving me error code and with no hot water. I tried two weeks of either fixing it by watching Youtube or have other plumbers come over to take a look at the issue. None of them were able to help me resolve my tankless water issue. After 2 weeks of no hot water, I decided to give HomeAdvisor and Aaron's Plumbing and Rooter a try. Aaron came over the next day and point out the issues with my old water heater and suggested me to replace a new water heater with dedicated gas line. After 2 weeks of no hot water and researching issues that might happen to tankless hot water, I was convince what Aaron suggested. Aaron was very thorough and professional about the entire installation process. After the installation, there was error from the new tankless water heater. Aaron came out immediate to help resolve the issue. After countless hours of debugging and process of elimination with the technical support person from the water heater manufacturer, the issue was finally resolved due to a defect ignition rod from the manufacturer. I want to thank Aaron for his time and effort to restore hot water to my house. Aaron will be my go to plumber if I ever need plumbing help. George"
Bathroom Remodel
Bathroom Sink Fixture Install
Bathroom Remodel
Kitchen faucet fixture repair
Shower Ugrade

+108

Response time6 hrs
Response rate89%
76 neighbors recently requested a quote
Avatar for Green Arrow Plumbing
Green Arrow Plumbing
5.0(
40
)

Serving Los Altos, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"Rarely write reviews, but I had to take the time to recognize the incredible service I received from Green Arrow Plumbing. From start to finish, this was hands-down one of the best service experiences I’ve ever had! I originally called for a relatively simple job replacing a shower head but while they were here, I also mentioned a persistent issue with my main house drain being clogged. Without hesitation, they jumped into action and took care of both problems quickly, efficiently, and with zero mess left behind. They were punctual, professional, and friendly . They explained everything in simple terms, gave a fair and honest quote, and stuck to it. No upselling, no surprises just quality work done right the first time. If you need a reliable, honest, and highly skilled plumber I highly recommend Cornelio. I’ll definitely be calling them again for any future needs. Thank you for making what could have been a stressful situation completely stress free!"
Water Heaters Project
Plumbing Project
Plumbing Project
Plumbing Project
Drain replacement

+50

10 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Fix-It Plumbing
Fix-It Plumbing
4.5(
179
)

Serving Los Altos, CA and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

Fix it Plumbing is a full service plumbing contractor. Since 2007, Fix it Plumbing has serviced countless homes and businesses throughout the greater bay area with exceptional customer service and superior workmanship, seven days a week. Our technicians are fully trained, licensed, and certified to handle 100% of the customer's service needs and provide you with the best quality of work possible. Call today for your free estimate

10 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Jess Plumbing
Jess Plumbing
4.9(
49
)

Serving Los Altos, CA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Jesus did a great job: the house builders installed irrigation that tapped into the water main before the valve into the house, so that a leak in the irrigation system (plastic pipes) meant that we had to shut off water to the house at the water meter at the curb. We had a leak in a buried plastic irrigation pipe, and so we had to do without water until it could be fixed. Jess installed a copper pipe to split off from the main pipe and added a valve, and mated copper pipe to the irrigation plastic pipes, so that if there were a future leak in the irrigation system, it's easy to shut that off w/o having to shut off the whole house. Jesus was on time, did a great job, fixed things quickly, and I'd definitely hire him again."
Plumbing Project
Plumbing Project
Plumbing Project /water main
Old gate valve/ doesn’t shut off water
Installed new Zoeller sewer tank lid

+178

Recommended by95%of homeowners
Avatar for Chandler's Plumbing
Chandler's Plumbing
4.3(
742
)

Serving Los Altos, 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
423 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Mike Counsil Plumbing and Rooter
Mike Counsil Plumbing and Rooter
4.0(
330
)

Serving Los Altos, CA and surrounding areas

Approved (Corporate)

In business since 1994

Emergency services offered

Warranties offered

"All went great they rehung the sewer pipes under the house. Replaced the damage sewer pipe. Installed a new fresh water pipe from the water meter to the house installed a pressure regulator and a back flow on the hot water heater. Pached all the holes and even one the didn’t cause"
Preparing a safe environment for working on a sewer line replacement.
Water heater installation with expansion tank
Additional Photos
Additional Photos
Additional Photos

+28

Recommended by81%of homeowners
Avatar for Plumbing 1 Builder's Inc
Plumbing 1 Builder's Inc
5.0(
17
)

Serving Los Altos, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Warranties offered

"Leo did a very extensive plumbing repair that required digging through my bathroom floor and replacing a huge pipe to the outside. He also prepared and installed piping and fixtures for a bathroom remodel. Always showed up when he said he would and had a great crew. Cleaned up as well. Would highly recommend."
Response time3 hrs
52 neighbors recently requested a quote
...
Showing 1-10 of 273
FAQs for water main install, replace or repair projects in Los Altos, 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 Los Altos, 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.