Top-rated plumbing installers for a remodel or addition.

Get matched with top plumbing installers for a remodel or addition 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 Plumbing installers for a remodel or addition in Los Altos

Avatar for Escamilla Plumbing and Rooter Inc.
Escamilla Plumbing and Rooter Inc.
5.0(
50
)
Plumbing for a Remodel or Addition - Install

Serving Los Altos, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2015

Emergency services offered

Warranties offered

"Gustavo was quick and efficient with diagnosing the issue, getting the parts and installing. It works perfectly. He had also installed my washing machine and replaced a valve for me and again, he exp0lained everything and finished the project. everything works very well. I will continue to call him for my plumbing needs."
Plumbing Project
Electric Heat Pump Water Heater
Shower Valve
Shower Area Remodel
New Bidet

+167

Response time1 day
Recommended by84%of homeowners
Avatar for Green Arrow Plumbing
Green Arrow Plumbing
5.0(
40
)
Plumbing for a Remodel or Addition - Install

Serving Los Altos, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"We needed a building cleanout installed as a requirement for our remodeling project. Cornelio was very thorough in investigating what were the requirements for the inspection. He installed a dual cleanout following all the requirements which will help us in case of any backups in the future. He was very transparent about the cost, and finished the installation on the following day. Highly recommend him for any plumbing issues."
Water Heaters Project
Plumbing Project
Plumbing Project
Plumbing Project
Drain replacement

+50

Response time9 hrs
Response rate100%
12 neighbors recently requested a quote
Avatar for Jess Plumbing
Jess Plumbing
4.9(
50
)
Plumbing for a Remodel or Addition - Install

Serving Los Altos, CA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"As a property manager I have doubt was many plumbing companies and I can say I can count on Jess plumbing. He is efficient, reliable and always has fair prices. You can count on him not to overprice because he's honest and knows what he's doing."
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 by93%of homeowners
Avatar for Mike Counsil Plumbing and Rooter
Mike Counsil Plumbing and Rooter
4.0(
330
)
Plumbing for a Remodel or Addition - Install

Serving Los Altos, CA and surrounding areas

Approved (Corporate)

In business since 1994

Emergency services offered

Warranties offered

"I use Counsil for the quality of their work and trust them to do it to highest city inspection standards. I had to do two replacement sewer lines. Counsil plumbing did the digging, plumbing and cement work with same people; the other contractor did plumbing, subcontracted sleeving sewer line and subcontracted concrete work. Counsil left the house as he found it. The other contractor left trash, rebar and wood and never came back. Counsil used a price master and a detailed contract, the other contractor gave me verbal price which became opaque. I use Counsil when i need quality work that meets inspection specifications and am willing to pay for it."
Preparing a safe environment for working on a sewer line replacement.
Water heater installation with expansion tank
Additional Photos
Additional Photos
Additional Photos

+28

Response time8 hrs
Response rate100%
Recommended by81%of homeowners
Avatar for Plumbing 1 Builder's Inc
Plumbing 1 Builder's Inc
5.0(
17
)
Plumbing for a Remodel or Addition - Install

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
Response rate85%
51 neighbors recently requested a quote
Avatar for Fix-It Plumbing
Fix-It Plumbing
4.5(
179
)
Plumbing for a Remodel or Addition - Install

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

17 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for JPC Rooter & Plumbing
JPC Rooter & Plumbing
4.8(
46
)
Plumbing for a Remodel or Addition - Install

Serving Los Altos, CA and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"JPC came in and took their time to thoroughly inspect our kitchen so that they can give us options on how we can install a new gas line as we were switching from an electric to a gas range. Their pricing is very fair, they are friendly and courteous. When they found out that we forgot to purchase a flexible gas hose, they went above and beyond and went out to buy one. I will definitely use them again for any future plumbing jobs."
Our Work
Our Work
Our Work
Our Work
Our Work

+56

Response time4 hrs
Recommended by100%of homeowners
Avatar for The Tankless Guys Plumbing Corp.
The Tankless Guys Plumbing Corp.
5.0(
13
)
Plumbing for a Remodel or Addition - Install

Serving Los Altos, CA and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Sergio and his team came to our rescue after we had our water heater shut off by PG&E for a safety issue. We received a detailed estimate after a thorough evaluation. Sergio provided us a range of options and patiently answered all our questions. We decided to also fix other issues we'd been considering and we were provided with a fair estimate for completing all the work at once. We agreed to also install a pressure regulating valve and a home filtration system. The Tankless Guys team was punctual on the day we began the work. They did the best they could to minimize disruptions, letting us know when we would have a water interruption and returning it as soon as possible. I was impressed by their professionalism, communication throughout the project, and attention to detail. They took their time to clean up the area they were working on at the end of the day, covering potential hazards and marking them off, and organizing the space to begin the next day. The team did uncover a couple of issues in our older home, which caused the project to take a little longer. They did not cut corners - Sergio, Daniel and Ray took their time to fix the issues so the installations could be installed properly and up to code, and to avoid other problems in the future. We are thrilled with the quality of the work, the attention to detail, and the peace of mind that our home is safe again. It was a pleasure to work with the Tankless Guys! I'm sure we will call them again for our next plumbing project."
Give us a call today at 408-580-0031
Give us a call
give us a call
give us a call
give us a call

+5

Response time7 hrs
Response rate91%
Recommended by100%of homeowners
Avatar for Mike Counsil Plumbing LLC
Mike Counsil Plumbing LLC
3.9(
572
)
Plumbing for a Remodel or Addition - Install

Serving Los Altos, CA and surrounding areas

Approved (Corporate)

In business since 2000

Emergency services offered

Warranties offered

"I would like to give "An Excellent Review" of the services, provided today (10 June 2021), by Bobby Mata and Jose ____ from Mike Counsil Plumbing Inc.. They replaced a faulty "Push-on" tub faucet, which has a gate valve for turning the shower-on / off, with a soldered-in unit whose engineered construction is much-more reliable and less-prone to leaking around the half-inch pipe to-which it was soldered onto. While their service charge was more than having a "handyman plumber" do the job, they absolutely guarantee the quality-AND-reliability of the materials-and-installation work provided; it's well-worth that additional cost....... Steve"
Installed Tankless
Sewer Line
Regulator
Tankless Water Heater
Tankless Water Heater

+3

Response time1 day
Response rate100%
78 neighbors recently requested a quote
Avatar for NS Plumbing
NS Plumbing
5.0(
9
)
Plumbing for a Remodel or Addition - Install

Serving Los Altos, CA and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"We asked for a professional plumber and they sent us to the company NS Plumbing when Nestor arrived he gave us a reasonable price and installed our new water heater for us, Nestor is a is a professional at his job and would definitely recommend NS plumbing"
main sewer replacement
main sewer replacement
main sewer replacement
main sewer replacement
main sewer replacement

+2

...
Showing 1-10 of 238
FAQs for plumbing installation for a remodel or addition projects in Los Altos, CA

Adding bathroom plumbing to a detached garage starts with the basic line installation cost of $900 to $1,300. On top of this base expense, you'll need to budget for each fixture. A toilet costs  $250 to $550, sinks cost $150 to $800, and a shower or bathtub costs $400 to $1,900. The project will also require ventilation, moisture-resistant materials, and possibly electrical work. Remember that these costs reflect only the plumbing aspects—additional construction, finishing, and permitting expenses will apply to complete a functional bathroom space.

While certain aspects of garage renovation might be suitable for DIY enthusiasts, plumbing installation requires professional expertise. Connecting to water and sewer systems demands specialized knowledge and equipment, and improper installation can result in severe water damage, code violations, and potential health hazards. Most municipalities require permits for plumbing modifications, and these often stipulate that licensed professionals must perform work. Consider limiting your involvement to simpler tasks like painting or basic finishing work.

The timeframe for adding plumbing to a detached garage spans one to three days for the actual plumbing work. However, this represents only the active installation period. The complete project timeline must account for planning, obtaining permits (which can take weeks depending on your locality), coordinating multiple contractors if needed, and addressing any unexpected challenges that arise during installation. Weather conditions can also impact excavation and outdoor connection work.

Adding plumbing to a detached garage will likely increase your property taxes. Tax assessors consider plumbing an improvement that enhances property value and functionality. The specific tax impact varies by location and project scope. Converting a garage into living space with plumbing facilities can trigger significant reassessment in many jurisdictions. Before proceeding with your project, consult your local tax assessor's office to understand the potential tax implications and factor this ongoing expense into your decision-making process.

The Los Altos, CA homeowners’ guide to plumbing installations for a remodel or addition

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