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Top-Rated Tankless water heater installers in Hillsborough - Updated Nov 2026

Garden State Water Heaters
4.5(
521
)
Tankless Water Heater - Install

Serving Hillsborough, 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 - Install

Serving Hillsborough, NJ and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"It was an absolute pleasure working Carmen, Frankie and team. I recently moved in a mobile home and I had them assess my tankless water heater that was giving me problems. With freezing temperatures hitting hard, it was very important that my family had hot water and overall a working water heater. They were able to recommend a new option and promptly install it. Communication was excellent and the overall experience made me feel confident I can rely on Carmen for any water heater needs. These days good service seems to be minimal, Garden State Water Heaters exceeded expectations. Thank you! - Max Hines"
Bradford White Water Heater
Water Heater Install
Water Heater Install
Water Heater Install
Water Heater Install

+7

Response time3 hrs
Response rate86%
182 neighbors recently requested a quote
Avatar for Just In Case Plumbing & Heating LLC
Just In Case Plumbing & Heating LLC
5.0(
59
)
Tankless Water Heater - Install

Serving Hillsborough, 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
Avatar for Arctic Air Conditioning
Arctic Air Conditioning
4.8(
867
)
Tankless Water Heater - Install

Serving Hillsborough, NJ and surrounding areas

Approved (Corporate)

In business since 1977

Free estimates

Emergency services offered

"Very grateful for such an easy and pleasant experience when I suddenly found my very old hot water heater leaking all over the basement floor on a Sunday evening. I did a quick panicked search and thankfully Arctic answered my call and put me at ease with a quote for a replacement and an install appt for first call the next morning. Adam K arrived on time, was very sweet & professional, and installed our new unit in under an hour. Will definitely use Arctic again!"
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 - Install

Serving Hillsborough, 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 - Install

Serving Hillsborough, 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
Leacy's Plumbing & Heating, LLC
3.7(
80
)
Tankless Water Heater - Install

Serving Hillsborough, NJ and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"The plumber answered my initial call and I was able to describe the problem we were having with the guest room shower fixture that only produced very hot water. I sent him a photo of the fixture. He came the next morning and replaced the cartridge, unclogged the drain in the tub, and fixed the stopper that was not closing properly. All of his services were priced reasonably!"
Lawrenceville Prep School
Lawrenceville Prep School
Lawrenceville Prep School
Lawrenceville Prep School
Lawrenceville Prep School

+19

Response time10 hrs
Recommended by90%of homeowners
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