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

Avatar for Mr Fixit Plumbing/ CNJ Home Services
Mr Fixit Plumbing/ CNJ Home Services
4.9(
91
)
Plumbing for a Remodel or Addition - Install

Serving New Brunswick, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2004

Free estimates

Emergency services offered

"I recently had work done on several different occasions by Rob (personally) and his crews: HVAC, plumbing, carpentry, and demo work. All done professionally, efficiently, and at a fair price. I highly recommend Mr Fix It for your next renovation or repair work."
Mrfixit CNJ made a Complete transformation of my bathrooms with True quality & comfort in mind.
The lights & Rainhead really make this bathroom
Additional Photos
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+48

Response time9 hrs
4 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Dawson Mechanical Contracting
Dawson Mechanical Contracting
4.8(
136
)
Plumbing for a Remodel or Addition - Install

Serving New Brunswick, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Emergency services offered

"We had an older Heatmaker combination unit boiler that was 32 years old that needed to be replaced. We started out with several estimates and first decided what could be used in our space constrained garage. We decided on a Navien combination unit and focused a obtained a couple more estimates. Dawson in fact was one of the last estimates we obtained. While Dave from Dawson had the benefit of us being well along the learning curve, he was able to answer all of our questions about the new unit and how best to solve the condensate dilemma. He even was spot on with regards to treating our well water to minimize scale buildup in our new boiler. We knew we had reached that point where we felt we had found the best installer in Dave. Dave verified his condensate solution with the local township inspector and we scheduled the install date in two weeks. Carlos and Pablo showed up on time and dismantled the old unit and piping and did a first rate and well thought out installation job. Carlos had extensive experience installing these Navien units and it really showed. They managed to work in a tight space that PSE&G’s installers would not have with relocating a well tank. After all the plumbing was done, Ricky did the electrical work and adjusted some final dip switch settings before firing up the new boiler. Dave and his crew really are top notch. His front office staff (Wanda and Ondrea) made the PSE&G interest free financing and permitting approval process seemless. We are looking forward to the operation and efficiency of our new high efficiency boiler for years to come. If you are installing a Navien high efficiency combo unit, we highly recommend using Dawson Mechanical!"
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+20

Response time7 hrs
Response rate99%
Recommended by92%of homeowners
Eddie O's Plumbing & Heating
4.7(
110
)
Plumbing for a Remodel or Addition - Install

Serving New Brunswick, NJ and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"We live in an older house and tend to have a lot of small problems. Most plumbers we've used have not solved the problems we called them for or proposed massive expensive changes that we ultimately found unnecessary. Eddie O came and listened to what we said we needed. He answered all our questions about his suggestions. The estimate was in the area we had hoped it would be. He showed up on time and did the work in the time he told us to expect it to take. When he was done, he cleaned up after himself. Since the work was completed, everything is working as expected."
Response time12 hrs
Recommended by98%of homeowners
Avatar for Good Tidings Plumbing Heating and Cooling
Good Tidings Plumbing Heating and Cooling
4.3(
78
)
Plumbing for a Remodel or Addition - Install

Serving New Brunswick, NJ and surrounding areas

Approved

In business since 1991

Emergency services offered

Warranties offered

"Angi's list comes through again. Good Tidings Plumbing is a pleasure to work with. Mark was very knowledgeable and clearly communicated our options. He diagnosed the cause of our kitchen faucet leak quickly. We were sure a whole new faucet was needed, but he fixed it at much less expense. He also replaced our soap dispenser, which never worked, with a much improved model. Mark at Good Tidings is now our go-to plumber!!!!!"
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Response time8 hrs
Response rate100%
18 neighbors recently requested a quote
Avatar for Best Pro Service, LLC
Best Pro Service, LLC
4.8(
68
)
Plumbing for a Remodel or Addition - Install

Serving New Brunswick, NJ and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Highly recommend. Very responsive and quick. The order was in in about a week and installed the day that they were delivered. Installation was extremely quick and well done. Iâ d give 6 stars if I could!"
Custom Window Treatments
Zebra shades
Zebra shades
Zebra shades
Zebra shades

+40

Response time1 day
235 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for KP Plumbing
KP Plumbing
5.0(
12
)
Plumbing for a Remodel or Addition - Install

Serving New Brunswick, NJ and surrounding areas

In business since 2020

Free estimates

Warranties offered

"KSP Plumbing went above and beyond. I cannot recommend Kyle more highly. The developer installed our roman tub in a manner that now years later when the faucet and handles needed replacement there was no easy access. KSP had to literally cut through the tile to have access for replacing the faucet. The work was so expertly handled you can't even notice where they cut and then replaced the tile. This saved having to get a mason or carpenter. KSP's work was above and beyond excellent and at a fair price point. Five star."
4 zones of radiant heat/ 1 zone of baseboard heat. This unit is also a tankless water heater.
4 zones of radiant heat/ 1 zone of baseboard heat. This unit is also a tankless water heater.
4 zones of radiant heat/ 1 zone of baseboard heat. This unit is also a tankless water heater.
4 zones of radiant heat/ 1 zone of baseboard heat. This unit is also a tankless water heater.
4 zones of radiant heat/ 1 zone of baseboard heat. This unit is also a tankless water heater.

+21

Response time2 days
Response rate100%
Recommended by91%of homeowners
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FAQs for plumbing installation for a remodel or addition projects in New Brunswick, NJ

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 New Brunswick, NJ 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.