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

Avatar for Advanced Professional Management, LLC
Advanced Professional Management, LLC
4.2(
939
)
Water Main - Install, Replace or Repair

Serving Southampton, NY and surrounding areas

Approved

In business since 1999

Emergency services offered

Warranties offered

"We had a main water line leak between two houses on our property. We received 4 estimates to replace the pipe. All recommended replacing vs trying to repair the pipe. Advanceds’ estimate wasn't the lowest, there was one lower estimate but we elected to go with them because their technicians (Jason and Taz) were so helpful and so pleasant. We felt we could trust them to do a good job as quoted and do it on time. This job was difficult as the main line lies underground beneath asphalt driveway and lawn. The asphalt and the lawn are separated by a low wooden retaining wall. The plan was to dig a trench straight through from house to house and replace the existing pipe with a new pipe. We would later have to repave the trench which would be roughly 50’ long. In addition, we would probably have to rebuild the older retaining wall. The day of the project the owner of the company, Sam, studied the situation and came up with a different plan. He and his team were able to push the pipe through the sleeve which held the broken pipe!! This prevented any need to dig!! No digging!! No breaking up the asphalt, no need to repave, no need to reseed the lawn, no need to fix the retaining wall!! Done. In a matter of hours. Can you imagine our relief? Our actual invoice was for less than half of what was originally quoted. Sam also saved us a lot of money in future repaving and possibly repairing the short retaining wall costs. Sam is not only very knowledgable but is a man with integrity. My feeling throughout this experience with Advanced is that we were all on the same team. Props as well to Isha who works in the office. Isha patiently answered all of our questions and was helpful all around. All scheduling was quick and punctual and we were kept in the loop through it all. A great team who take pride in their work! We highly recommend Advanced Professional."
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+33

Response time11 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Mayjac Plumbing, Inc.
Mayjac Plumbing, Inc.
4.6(
15
)
Water Main - Install, Replace or Repair

Serving Southampton, NY and surrounding areas

Approved

In business since 2015

Small jobs welcome

Offers commercial services

"For years I have wanted to update my very old and inefficient American Standard cast iron boiler. I was very fortunate to find Mr Joe Burriesci the owner of Mayjac Plumbing who took the time to evaluate the best options, since the old boiler handled two apartments. We collectively decided to go with two Navien Combi Condensing Boilers, but the best part of the entire process was how meticulous the installation was done. From start to finish Mayjac Plumbing kept every promise and timeline made. I highly recommend Mayjac Plumbing..."
Before Installations
After installations
Whole House PVC Piping 7
Whole House PVC Piping 6
Whole House PVC Piping 5

+16

Response time10 hrs
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Red Lion 24/7 Emergency Plumbing Heating & Drains
Red Lion 24/7 Emergency Plumbing Heating & Drains
4.6(
10
)
Water Main - Install, Replace or Repair

Serving Southampton, NY and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"Hands down best contractor we have ever worked with and highly recommend. Anthony was honest and determined to repair our horrible plumbing that we have had problems with for years. At 61 years of age I know excellence and integrity and Anthony has both in loads. He is a master plumber and his work ethic far exceeded our expectations. Red Lion provided excellent expert service at a fair price and we are grateful to have e found them."
Whole House Water Filter
Water Heater Replacement
Water Heater Replacement
Response time2 hrs
Response rate100%
1 neighbors recently requested a quote
Tri Seasonal Plumbing, Inc.
New to Angi
Water Main - Install, Replace or Repair

Serving Southampton, NY and surrounding areas

Approved

In business since 2025

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 needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the 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. \n

Avatar for APV Mechanical Inc
APV Mechanical Inc
4.8(
89
)
Water Main - Install, Replace or Repair

Serving Southampton, NY and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"Flawless. Called Anthony 1 week ago. Got prompt callback. Was here next day. Scoped out and priced the job, gave me installation date for following week/ 7 days start to finish (included a weekend and a holiday! Very fast, professional installation by Anthony and his partner. Up and running in 90 minutes. Extremely happy. Will use him to replace our other unit in the Fall.
"
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+2

Recommended by91%of homeowners
Avatar for Rapid Repairs - Plumbing and Handyman
Rapid Repairs - Plumbing and Handyman
4.4(
53
)
Water Main - Install, Replace or Repair

Serving Southampton, NY and surrounding areas

In business since 2012

Emergency services offered

"While looking for a plumber to inspect and replace a leaking water heater, I found Rapid Repairs.  I called the number, and was directed to send a text message if I needed a emergent response.  After only a few minutes, I got a response in a text message addressing my issue.  They were professional and answered my questions as best he could without being at my house.  I even got estimates based on my answers.  The only reason I did not utilize their service was that I needed hot water immediately, and they were already on multiple service calls, meaning the earliest they could come out would be Monday.  
I would definitely use them in the future, I was very happy with the response and appreciated that he was polite and understood that I couldn't wait for them to become available.
"
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+2

Recommended by88%of homeowners
Avatar for ISLANDER HOME IMPROVEMENTS INC
ISLANDER HOME IMPROVEMENTS INC
5.0(
44
)
Water Main - Install, Replace or Repair

Serving Southampton, NY and surrounding areas

In business since 1983

Free estimates

"Pat and his team did a great job remodeling our bathroom. We removed an existing tub, gutted the bathroom to the studs and installed a stand up shower with a bench; new flooring/tiles and fixtures throughout. Also, Pat has a lot of experience that he shared which helped with my decision making (e.g. type of seat for bench, custom made shower pan, which retailers to use for materials, etc.). The project took a total of ~3.5 week to complete and the end result is fantastic. They also did some additional work on my gazebo (installed capping that the previous contractor skipped) and a vent fan in the kitchen. I would consider them for any future renovation projects."
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+51

Recommended by100%of homeowners
Avatar for Ultra Pure
Ultra Pure
5.0(
29
)
Water Main - Install, Replace or Repair

Serving Southampton, NY and surrounding areas

In business since 1982

Free estimates

Credit card accepted

"We used Ultra Pure for whole house water filtration. Our water is very hard and we have seen such a big difference in quality, taste and hardness in our water. We also installed air purifiers in our main rooms and nursery to give ourselves peace of mind knowing we are being protected from germs and bacteria as well as pet dander from our dog."
Water Filtration and Softening Project
Water Filtration and Softening Project
Water Filtration and Softening Project
Water Filtration and Softening Project
Water Filtration and Softening Project

+26

Recommended by100%of homeowners
Avatar for MFS PLUMBING AND WATER HEATER CO.
MFS PLUMBING AND WATER HEATER CO.
5.0(
17
)
Water Main - Install, Replace or Repair

Serving Southampton, NY and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"Mark came to me from a friends recommendation for their water heater replacement and they were correct. Was a perfect experience. He came and was probably a little surprised by having to do a little extra work than expected but came through regardless in all aspects. A++"
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Recommended by100%of homeowners
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FAQs for water main install, replace or repair projects in Southampton, NY

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 Southampton, NY 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.