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

Avatar for Robert Johnson Plumbing
Robert Johnson Plumbing
5.0(
328
)
Tankless Water Heater - Repair

Serving Dunbarton, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Customers say: True professional

"I had Rob install a tankless hot water heater, whole house water filter, and run a new gas line for my gas stove conversion. He was very professional and and was quick to set an appointment. The whole job took a single day and he even removed and disposed of the old outdated appliances. Quality work at reasonable prices! Would highly recommend."
Response time2 hrs
Response rate96%
38 neighbors recently requested a quote
Joe Belanger, Plumbing Services
4.5(
130
)
Tankless Water Heater - Repair

Serving Dunbarton, NH and surrounding areas

Approved

In business since 2003

Free estimates

Customers say: Quality work

"Joe is an excetant professional contractor, he provided a very competitive quote for the replacement of a propane hot water heater. He was able to do the work the same day as he provided the quote. Work is clean neat and very professional looking. Would not hesitate to contact Joe again on any future heating and plumbing needs."
Buderus oil fired forced hot water heating system
Oil fired buderus
Navien 150 high efficiency wall mounted boiler
Water heater
Powervented water heater

+1

Response time7 hrs
Recommended by94%of homeowners
Avatar for Barrington Solutions Plumbing & Heating LLC
Barrington Solutions Plumbing & Heating LLC
4.9(
17
)
Tankless Water Heater - Repair

Serving Dunbarton, NH and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"I finally got to build my dream garage to store all my tools and have a cool hangout on Friday nights with the boys n a couple coors. Chris came and did everything from the bathroom and the heating system. I will definitely be calling him back to add a mini split in the future. He was professional, punctual and clean. Very knowledgeable you can tell he cares about his clients."
Granite Ridge
Brook hill development
Sanborton
Derry
2.5 bathroom modular

+39

36 neighbors recently requested a quote
Avatar for Brad Blomburg P&H
Brad Blomburg P&H
4.7(
19
)
Tankless Water Heater - Repair

Serving Dunbarton, NH and surrounding areas

Approved

In business since 2005

Free estimates

Offers commercial services

"Brad was very responsive and knowledgeable. He did the repair quickly and took care of the problem from parts to labor. All at a very affordable cost. Thank you Brad for getting my a/c working again!"
TANKLESS
WATER HEATER
WATER HEATER
Response time20 mins
2 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Heritage Home Service
Heritage Home Service
4.5(
464
)
Tankless Water Heater - Repair

Serving Dunbarton, NH and surrounding areas

Approved (Corporate)

In business since 1988

Free estimates

Emergency services offered

"Ended up just replacing my gas hot water heater. Proactive Comfort had the best price so I chose them. They explained all the options and we felt best going with them for the value."
Generator Installation
Light Fixture Service
Oultet services
Indoor Outlet Service
HVAC Outdoor Unit

+16

Response time1 day
379 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Skovron Mechanical Services
Skovron Mechanical Services
4.1(
85
)
Tankless Water Heater - Repair

Serving Dunbarton, NH and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Excellent communication from Keith; outstanding service from Roger. Professional, timely, and reasonably priced. They came in under estimate on my boiler repair and advised that a second bit of work that had previously been discussed was not going to be necessary. I will definitely use them again and highly recommend them!"
Commercial Cooling
Before Oil Boiler
Old
Oil Boiler
HVAC Roof Top Unit

+19

Response time9 hrs
Response rate100%
Recommended by84%of homeowners
Avatar for GM Mechanical LLC
GM Mechanical LLC
5.0(
9
)
Tankless Water Heater - Repair

Serving Dunbarton, NH and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Gage has been excellent to work with. We will hire him any time we need something in the future. The work site is always clean, the new install always looks tidy. He has installed a water filter, fixed several leaks in old plumbing, replaced hose bibs, worked on our booster and expansion tank, replaced fixtures. It's always great work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time1 day
Response rate100%
Recommended by88%of homeowners
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