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

Avatar for Garden State Water Heaters
Garden State Water Heaters
4.5(
522
)
Tankless Water Heater - Install

Serving Dover, NJ and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Garden State Water Heaters provided excellent service for maintaining my tankless water heater. Carmine and Michael were very professional and communicative regarding my project. I highly recommend them for all of your plumbing requirements."
Bradford White Water Heater
Water Heater Install
Water Heater Install
Water Heater Install
Water Heater Install

+7

Response time3 hrs
Response rate86%
186 neighbors recently requested a quote
Garden State Water Heaters
4.5(
521
)
Tankless Water Heater - Install

Serving Dover, 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
Thomas D. Evans
4.7(
234
)
Tankless Water Heater - Install

Serving Dover, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1997

Free estimates

Customers say: Quality work

"It's always difficult to get someone who is willing to come by to fix those little annoying problems you have, but not Tom. I had 1 leaky faucet and 1 frozen faucet(due to hard water). Tom came explained what needed to be done and I hired him to fix it. Very pleasant to work with. Also cleaned up after all the work was done. I have his card now and will not have to stress when I need a good plumber in the future. No job is too small for Tom!! He will be back in New Year to install a tankless water heater."
Our work
Our work
Our work
Our work
Our work

+22

Response time6 hrs
2 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Pipe Works Services Inc
Pipe Works Services Inc
4.4(
204
)
Tankless Water Heater - Install

Serving Dover, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Brian, the service tech. was prompt and knew his skills. He repaired my water heater in adequate time and was both kind and understand to the situation. The back office customer service ladies were WONDERFUL...ALL were friendly, welcoming, and managed to offer a service time that was the best for both parties. Thank You ALL for your kindness...:-)"
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+93

12 neighbors recently requested a quote
Recommended by78%of homeowners
Pascale Plumbing & Heating, Inc.
4.6(
120
)
Tankless Water Heater - Install

Serving Dover, 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 Dover, 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 All Weather Heating & Cooling
All Weather Heating & Cooling
4.5(
70
)
Tankless Water Heater - Install

Serving Dover, NJ and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"They were very responsive, both during the phase when we were deciding whom to choose, and once the boiler was installed.  Work was reasonably clean, and installation went well.  All parts of old system removed from property. New system works well, and when tweaking was needed, service was prompt and attentive.
"
Additional Photos
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+13

Response time3 days
7 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Advanced Professional Management, LLC
Advanced Professional Management, LLC
4.2(
939
)
Tankless Water Heater - Install

Serving Dover, NJ and surrounding areas

Approved

In business since 1999

Emergency services offered

Warranties offered

"This was probably my best experience on Angie's List. I woke up and noticed there was no hot water in the house. Went to the basement and noticed the hot water heater was leaking. I called up Advanced Professional Plumbing, told them what was going on and gave them the specs of the hot water heater. 20 minutes later a technician showed up (a very nice guy named Joey). He inspected everything and showed us the cause of the issue. He gave us a few options on what to do and we decided to replace the 75 gallon hot water heater. Within an hour, Joey came back with Sam and they replaced the old water heater with a new one. They were both professional and got the old hot water heater without making a mess and replaced with a new one. After the job was done, Joey tested all the bathrooms out to make sure the pressure was good and we paid and they were on their way. They were fast, efficient, explained everything and it was a great price. You really can't beat that. Your hot water heater breaks down on a Saturday you are not expecting hot water for the rest of the weekend but Advanced Professional Plumbing delivered. I appreciated the office following with me to make sure everything went. Just an overall class business."
Additional Photos
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+33

Response time11 hrs
Response rate100%
3 neighbors recently requested a quote
Avatar for WaterMac Plumbing & Heating LLC
WaterMac Plumbing & Heating LLC
4.5(
6
)
Tankless Water Heater - Install

Serving Dover, NJ and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

WaterMac Plumbing & Heating is a full service plumbing shop. We provide full service plumbing, plumbing sales & installation. We service all plumbing found in a home. We service and repair, faucets, sinks, toilets, showers, tub & shower valves, tubs, tub drains, HOT WATER HEATERS, boilers, baseboard heating, pumps, drains, water softeners, booster pumps, well tanks, WATER MAINS, sewer mains.

Recommended by100%of homeowners
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