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

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

Serving Hooksett, 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 The whole job took a single day and he even removed and disposed of the old outdated appliances.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%
39 neighbors recently requested a quote
Joe Belanger, Plumbing Services
4.5(
130
)
Tankless Water Heater - Repair

Serving Hooksett, 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 Action Plumbing Heating And Air
Action Plumbing Heating And Air
4.9(
92
)
Tankless Water Heater - Repair

Serving Hooksett, NH and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Totally excellent service. My furnace was not working so I had no hot water. I called after 7 pm and Mike was there first thing in the morning to check it out. He located the problem and took immediate action to resolve it. Called suppliers, located the part for a 57 year old furnace. The following day Jason and Chase came and made the repair. Cost effective price with professional workmanship. Reliable and trustworthy."
Response time1 day
Response rate89%
19 neighbors recently requested a quote
Avatar for Soulios Heating & Cooling, LLC
Soulios Heating & Cooling, LLC
5.0(
17
)
Tankless Water Heater - Repair

Serving Hooksett, NH and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"Wonderful service from Adam! My water heater was struggling to keep up with my wife?s long showers - which by the way she heats them up hot as hell! ? Besides the point, Adam recommended sizing up the water heater in order to keep up with the demands of some crazy hot water. Incredibly fast installation process and Adam was really friendly. I would definitely recommend him to all my friends who are looking for a plumber. You should certainly give him a call!"
Response time3 hrs
1 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Barrington Solutions Plumbing & Heating LLC
Barrington Solutions Plumbing & Heating LLC
4.9(
17
)
Tankless Water Heater - Repair

Serving Hooksett, NH and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

Barrington Solutions is the premier plumbing and HVAC specialist for new construction and major residential builds throughout New Hampshire's Lakes Region. Built on a foundation of elite technical expertise, strict project timelines, and clear communication, we partner with builders, contractors, and homeowners to engineer and install flawless mechanical systems from the ground up.While we provide full-service plumbing, high-efficiency heating, and advanced cooling solutions for existing properties, our true passion and specialty lie in rough-in plumbing, complete system design, and the seamless integration of modern heat pumps, boilers, and mini-splits for new homes. We treat every job site with total professionalism, ensuring your project stays on schedule, on budget, and up to code. Contact Barrington Solutions today to bring top-tier mechanical craftsmanship to your next build.

Granite Ridge
Brook hill development
Sanborton
Derry
2.5 bathroom modular

+39

33 neighbors recently requested a quote
Avatar for A.R. Borges Mechanical LLC
A.R. Borges Mechanical LLC
5.0(
13
)
Tankless Water Heater - Repair

Serving Hooksett, NH and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"I called to get our outdoor antifreeze valves replaced, and Andrew called me back right away. He was super helpful, taking the time to explain exactly what needed fixing and replacing everything at a fair price. Thanks, Andrew!"
My jobs
My jobs
My jobs
My jobs
My jobs

+25

8 neighbors recently requested a quote
Avatar for Skovron Mechanical Services
Skovron Mechanical Services
4.1(
85
)
Tankless Water Heater - Repair

Serving Hooksett, 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 Hooksett, NH and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

At GM Mechanical LLC, our top priority is customer satisfaction. We perform top quality work at an affordable rate. We are a family owned and operated buisiness who provide clean and neat work, and treat every home with care and respect. We look forward to working with you!

Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+11

Response time1 day
Response rate100%
Recommended by88%of homeowners
Avatar for Heritage Home Service
Heritage Home Service
4.1(
1,336
)
Tankless Water Heater - Repair

Serving Hooksett, NH and surrounding areas

Approved (Corporate)

In business since 1988

Free estimates

Emergency services offered

"I asked for a rep to come to give quotes for repair or replacement of my gas boiler. Before he came the old boiler failed, and Heritage was able to quickly install a new one so that we without heat and hot water for only a short time."
Grand opening of new location
Team breakfast
Events
Billy working hard
Golf tournament

+29

Response time5 hrs
355 neighbors recently requested a quote
Recommended by90%of homeowners
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