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Top-Rated Water main install, replace or repairers in Port-costa - Updated Nov 2026

Avatar for Oak Plumbing Inc
Oak Plumbing Inc
4.6(
104
)
Water Main - Install, Replace or Repair

Serving Port-costa, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"Our service technician was very well versed in plumbing issues. We had a couple of quirky issues with our new home-- one was murky or cloudy water at various faucets throughout the house. Another was warm water coming from the cold faucet late in the afternoon at the main kitchen sink. We suspected air pockets in the pipes was causing the murkiness in the water and that the pipes were getting warm from the sun in the kitchen. This was confirmed, but we went through a number of tests to rule out other possibilities. Our technician thoroughly analyzed our entire house, the products we installed, and then went away and did some research on his own on our water heater and other products or solutions that we could consider. We were very pleased with his knowledge and attention. The charge was more than fair for the amount of work and time he put into researching our problems. We will definitely use Oak Plumbing in the going foward."
Response time2 days
4 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
722
)
Water Main - Install, Replace or Repair

Serving Port-costa, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"Guy who came gave me good advice and advised that he felt my issue was not needed for repair. He didn't try to sale me any service as he saw no need. I appreciate a plumber who isn't trying to get work out of people whom don't need it."
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 rate100%
44 neighbors recently requested a quote
Avatar for AceStar Plumbing
AceStar Plumbing
4.5(
30
)
Water Main - Install, Replace or Repair

Serving Port-costa, CA and surrounding areas

Approved

In business since 2015

Free estimates

Customers say: Quick response

"AceStar Plumbing arrived on a Saturday morning, earlier than the agreed time. Even though my water heater is difficult to reach, and even more difficult to carry a bulky, heavy water heater down the outside of my house to install, they got in quickly, and before I knew it my new water heater was installed and I had hot water again. Really nice, thorough, and efficient plumbers. I had another little plumbing job, replacing a kitchen faucet, and Johnny Thoummavang returned the next day, a Sunday, and installed my new faucet quickly and efficiently. AceStar was in the higher price range for installing a water heater, but they came promptly, and they came on a weekend. YOU CAN'T ASK FOR BETTER SERVICE! My only two suggestions for customers are one, be home early to wait for the plumbers to arrive, and two, make sure their ability to accept a credit card is working that day so you can charge it. This happened to my husband & me, and luckily it was not a problem for me to write them a check. However, when my husband and I were younger, with small children and only one income, I wouldn't have had that much extra money in my checking account to pay for this emergency. So, if you rely on credit to pay for emergencies, check if AceStar can take your credit card, before they come that day and definitely before they start the job. THEY'RE GREAT, and they're the only plumbing company I've ever put in my Evernotes and my phone contacts to call again should I need a plumber!"
Response time3 hrs
Recommended by100%of homeowners
Avatar for Rooter Cowboy Plumbing
Rooter Cowboy Plumbing
5.0(
6
)
Water Main - Install, Replace or Repair

Serving Port-costa, CA and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's custom needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Project Photos
Avatar for Gray Plumbing, Inc.
Gray Plumbing, Inc.
4.3(
6
)
Water Main - Install, Replace or Repair

Serving Port-costa, CA and surrounding areas

Approved

In business since 2016

Small jobs welcome

Credit card accepted

"Michael Smith gave us a very excellent service. Weâ re so happy to have him fix our big problem with the water leak infront of our house. He has really a great knowledge and the best quick service performance.. We truly appreciate your help. More power to the company!"
Installation Complete
Old Kitchen Faucet
Tankless Water Heater
Water Heater Before
Dual Rinal tankless water heater

+15

Response time1 day
Response rate100%
86 neighbors recently requested a quote
Avatar for Edym Plumbing
Edym Plumbing
5.0(
1
)
Water Main - Install, Replace or Repair

Serving Port-costa, CA and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Edy is the best plumber I have worked with! With my recent purchase of an older condo, I wanted to replace both toilets, supply lines and shut off valves in both baths, and kitchen. Edy was very professional, walked me through the work and offered fair pricing! Thanks again Edy!"
EDYM PLUMBING
EDYM PLUMBING
EDYM PLUMBING
EDYM PLUMBING
EDYM PLUMBING

+5

2 neighbors recently requested a quote
Rebel Pipelines General Engineering Inc.
New to Angi
Water Main - Install, Replace or Repair

Serving Port-costa, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

Rebel Pipelines General Engineering Inc. is a premier Class A general engineering contractor based in Petaluma, California, serving municipalities, commercial developers, utility districts, and general contractors throughout Sonoma County and the greater North Bay area. Built on a reputation for precision earthmoving, rigorous safety standards, and deep technical expertise, Rebel Pipelines delivers end-to-end underground utility infrastructure and site preparation. \n \nFrom deep municipal sewer line installations to high-capacity water distribution mains and complex earth retention systems, Rebel Pipelines provides dependable, on-schedule site solutions engineered to meet exacting public works specifications and private development standards.

3 neighbors recently requested a quote
Avatar for Superior Plumbing & Drain Cleaning Services
Superior Plumbing & Drain Cleaning Services
4.5(
563
)
Water Main - Install, Replace or Repair

Serving Port-costa, CA and surrounding areas

In business since 2002

Emergency services offered

Warranties offered

"Superior plumbing has saved the day for me on countless occasions. I hit a sewer pipe with a lawnmower because it was sticking out of the ground and hidden by overgrown grass. I didn't know what it was, and sewage started coming out a few days later. I had another plumbing company come out and quote me $30k for a sewer lateral. I then had Superior Plumbing come out since they had recently installed a sewer lateral for my parents' house for much less. They said a piece of the pipe fell into the pipe, causing it to clog. They pulled out the piece, then cut the pipe to the ground and put a concrete cap that said "sewer," so I wouldn't hit it with the lawn mower again. It cost $1700 instead of $30k! Last week, the landscapers hit the cast iron sewer pipe coming from the bathroom outside. I immediately called Superior Plumbing, and they came out in 30minutes, as luckily they were close by. They addressed the issue and returned a few days later to replace the pipe with PVS, which proved to be very affordable. I then had them return to strap pipes under the house and install a water pressure regulator, as the water pressure was 95 when it should be 60. This could cause major problems with too high water pressure down the road with burst or leaking pipes. Look no further than Superior Plumbing for your plumbing needs!"
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+9

Response time7 hrs
Response rate100%
Recommended by88%of homeowners
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FAQs for water main install, replace or repair projects in Port-costa, 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 Port-costa, 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.