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Top-Rated Plumbing installers for a remodel or addition in Southampton - Updated Nov 2026

Avatar for Mayjac Plumbing, Inc.
Mayjac Plumbing, Inc.
4.6(
15
)
Plumbing for a Remodel or Addition - Install

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 Advanced Professional Management, LLC
Advanced Professional Management, LLC
4.2(
939
)
Plumbing for a Remodel or Addition - Install

Serving Southampton, NY and surrounding areas

Approved

In business since 1999

Emergency services offered

Warranties offered

"They came out on a weekend and we're our saving grace during one of the most frustrating experiences we've had in this house. We couldn't use any plumbing without flooding the basement with sewage, it was early stay at home days, and we felt like we would go mad. They showed up and gave us an price for replacing the broken pipe, and set in to work. They worked for the entire weekend essentially, staying extremely late at night and showing up early the next morning, and at one point driving far out at night to get supplies since their usual local place was closed (again, quarantine time) . The reason it took so long was because after opening up the floor to get to the end of the pipe to replace it they found more damaged pipes, and replaced those as well. By the end of it they had spent the entire weekend on a job they expected to only last an afternoon, had charged us not nearly enough for the amount of work they did, and fixed a leaking bidet we had for free for good measure. They also advised us to do camera scan to look for any other problems, which they couldn't do until the water drained out, and even did an initial mop of the basement (which, remember, sewage flooding). I'm honestly half convinced these people are magic helpful brownies or something, it's unreal how helpful they were! Somehow our drier which has not succeeded in drying clothes for over a year has started working in a single cycle since they left, despite the fact they didn't even do anything with it, and in fact specifically said they don't do driers and offered to recommend someone else when we mentioned it. Suffice to say, I cannot recommend them highly enough"
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+33

Response time11 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for Benitez Remodeling
Benitez Remodeling
4.7(
13
)
Plumbing for a Remodel or Addition - Install

Serving Southampton, NY and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Very satisfied with the work performed. Benitez remodeling went out of their way to make sure we were 100% satisfied. They were very professional and matriculate. My wood floors and baseboards came out beautiful."
Project
Response time3 days
8 neighbors recently requested a quote
Recommended by75%of homeowners
Tri Seasonal Plumbing, Inc.
New to Angi
Plumbing for a Remodel or Addition - Install

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 Rapid Repairs - Plumbing and Handyman
Rapid Repairs - Plumbing and Handyman
4.4(
53
)
Plumbing for a Remodel or Addition - Install

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 Your Way Contractors
Your Way Contractors
4.7(
79
)
Plumbing for a Remodel or Addition - Install

Serving Southampton, NY and surrounding areas

In business since 1983

Free estimates

Emergency services offered

"We used Your Way Contractors to gut renovate a finished attic space that was in bad shape. Gene and his team were fantastic to work with. Gene and his son were incredibly responsive to any questions or concerns we had. I had been using this room as my home office and the temperature would drop down 45 in the winter and go up to a stifling 85 in the summer. I am happy to say it is the toastiest room in the house on cold days. We are thrilled with how the room turned out. We will use Your Way Contractors on future home renovation projects. We highly recommend them."
Bathroom After
Basement After
Kitchen After
Attic Remodel
Bathroom Remodel

+31

Response time3 days
Recommended by91%of homeowners
Avatar for Gandolfo Contracting
Gandolfo Contracting
4.7(
32
)
Plumbing for a Remodel or Addition - Install

Serving Southampton, NY and surrounding areas

In business since 1998

Free estimates

"They picked up the new windows and all materials needed for us, arrived on time, were friendly and professional and did a great job installing the windows. As the old windows they were removing were in very poor shape and were rotted in areas, it wasn't as simple as some installations may be, but they were able to replace the windows efficiently with great results. We plan on using them again for additional work and would definitely recommend them to others."
Kitchen Remodel
Custom woodwork & fireplace
Custom Fireplace
Mantles
 Moulding

+10

Recommended by89%of homeowners
Avatar for All Clear Plumbing and Drains
All Clear Plumbing and Drains
4.9(
32
)
Plumbing for a Remodel or Addition - Install

Serving Southampton, NY and surrounding areas

In business since 1960

Free estimates

Emergency services offered

"The 2 guys Joe and Ghaham that came to take care of my plumbing issues were very professional and provided excellent service. They explained the issue and fixed it with no problem. Thank you for the top notch service. Nirali"
Bosch Combi boiler completed install.
Prefab boiler component board in our shop
Mounted board and Bosch boiler install
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+147

Recommended by93%of homeowners
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FAQs for plumbing installation for a remodel or addition projects in Southampton, NY

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 Southampton, NY 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.