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Top-Rated Tankless water heater repair pros in Raritan - Updated Nov 2026

Avatar for Just In Case Plumbing & Heating LLC
Just In Case Plumbing & Heating LLC
5.0(
59
)
Tankless Water Heater - Repair

Serving Raritan, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Warranties offered

Credit card accepted

"Alec from Aqua Sewer & Drain Service very professional when he showed up to check the water leak we had. Alec diagnosed the issue and said we needed an expansion tank since it cracked and that’s where all the water was leaking from. He said we don’t need a water heater because that is functioning properly. He took some pictures and then went to get the parts and came back within 30 mins and started the work. You can tell he really knew what he was doing. He had all the right tools in his work truck. He removed the old expansion tank and put in the new expansion tank and a shut off valve and he also strapped the expansion tank so it got added support. He also check the water pressure and looked for leaks before he left. We had this issue Friday night around 11pm and we call his company Saturday morning and he should up at 8am. It took about 2 hours before he finished. Alec was very knowledgeable, he also wore booties on his shoes in our house. I would recommend Aqua Sewer & Drain Services to anyone who has any plumbing issues. We live in South Brunswick NJ."
Plumbing Project
Plumbing Project
Before
Basement Bathroom
Water Heaters Project

+14

Recommended by45%of homeowners
Garden State Water Heaters
4.5(
521
)
Tankless Water Heater - Repair

Serving Raritan, NJ and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

Our experience is serving our customers with 100% satisfaction on every project we take on. We will give you the peace of mind you need and deserve. Garden State Water Heaters, happily services the community with integrity, professionalism, and competitive pricing. We are fully licensed and insured, and have built a reputation for quality work with each satisfied customer. Thank you for the opportunity to introduce you to our company.

Water Heater Install
Water Heater Install
Water Heater Install
Water Heater Install
Water Heater Install

+1

2 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Garden State Water Heaters
Garden State Water Heaters
4.5(
523
)
Tankless Water Heater - Repair

Serving Raritan, NJ and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"They care! They stopped by to address a hot water heater on the blink but the weather was brutally cold and Mikey saw me working on the boiler… After addressing a plan to convert to tankless, he helped me make the decision to switch to a tankless combi solution. Very happy how the team took the time to complete the job timely. I will use them for other projects for sure"
Bradford White Water Heater
Water Heater Install
Water Heater Install
Water Heater Install
Water Heater Install

+7

Response time3 hrs
Response rate86%
181 neighbors recently requested a quote
Avatar for Arctic Air Conditioning
Arctic Air Conditioning
4.8(
867
)
Tankless Water Heater - Repair

Serving Raritan, NJ and surrounding areas

Approved (Corporate)

In business since 1977

Free estimates

Emergency services offered

"Called Home Depot at 6:03pm on Saturday 2/26/22. At 6:30pm Arctic Air Conditioning contacted me, had me take photos of my broken hot water heater. 15 minutes later, Katie from Arctic called me back with a more than fair price and worked her magic to get me an install for Sunday 2/27/22 at 2pm. Alex from Arctic arrived Sunday around 2pm and started the project. Elijah from Arctic arrived 45 minutes later and by 6pm ( 24 hours after my initial call) we had a new hot water heater up and running. Great experience, Alex and Elijah were professional, knowledgeable and courteous."
photos
photos
photos
photos
photos

+6

14 neighbors recently requested a quote
Recommended by96%of homeowners
Pascale Plumbing & Heating, Inc.
4.6(
120
)
Tankless Water Heater - Repair

Serving Raritan, NJ and surrounding areas

Approved

In business since 1996

Free estimates

Credit card accepted

When your plumbing stops working, you need fast, reliable services. You can get all of that and more, from a dependable professional like Angelo Pascale. Our trusted team will help return your home to normal. We specialize in all your plumbing needs. Call us for a free estimate today.

Recommended by78%of homeowners
Avatar for AJ Perri, LLC Plumbing
AJ Perri, LLC Plumbing
3.8(
479
)
Tankless Water Heater - Repair

Serving Raritan, NJ and surrounding areas

Approved (Corporate)

In business since 1971

Credit card accepted

Customers say: True professional

"Service Tech Ed DeMore, who had originally installed our tankless water heater, responded and realised the unit had to be reset and recalibrated after an error message caused the unit to stop and not restart during the snowstorm of last Monday. He had us up and running in just a short amount of time. Eddie is an excellent and knowledgable employee with a great attitude. He is very pleasant and we hope A. J. Perry realises what a great asset they have in Ed."
New System Installation
Drain Repair
Response time8 hrs
Recommended by74%of homeowners
Avatar for Premier HVAC Services
Premier HVAC Services
4.3(
229
)
Tankless Water Heater - Repair

Serving Raritan, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Free estimates

Emergency services offered

"I had an issue with my stream boiler last Saturday. Did a google search and called multiple companies except Lighthouse (also part of Premier HVAC) picked up the phone right away and the tech Slava (unsure if I spelled his name correctly) showed up an hour after my call. He was very knowledgeable. He first did a thorough inspection on my streamer boiler (I thought mine was called furnace but he corrected me and luckily Lighthouse also repair stream boiler), then giving options (replace the water feeder and side glass or the whole stream boiler since mine was already past 30years and it may not last long). Due to budget issue, after discussed with my family, we chose for now just changed the parts. Slava has no problem with that and I got lucky that he was about to arrange time to have the work done the same day. Slava is also very patient and professional. As he learned that I am new to streamer boiler, while he was doing his work, at the same time, he was giving “a lecture “ in terms of names, functions of each parts and the concept of how the stream boiler works and how to maintain it properly. I gotta be honest that I don’t recall all the he mentioned but at least now I have a concept. In terms of the price, I can’t say that it’s cheap but you pay for the quality of service that you get. Slava literally taking his time and spent about 4 hours to repair. Highly recommend."
Additional Photos
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+38

Response time1 day
Response rate100%
1 neighbors recently requested a quote
Avatar for Pipe Works Services Inc
Pipe Works Services Inc
4.4(
204
)
Tankless Water Heater - Repair

Serving Raritan, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Wilfredo did an excellent job! Not only did he replace a leaking outdoor water faucet, he discovered that our water pressure regulator (PRV) was defective, which was causing numerous pressure problems with all our appliances, toilets and hot water heater. Fantastic diagnostics! Really impressed and likely saved us many future problems. Very pleased with service!"
Additional Photos
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Additional Photos

+93

11 neighbors recently requested a quote
Recommended by78%of homeowners
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