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

Avatar for Robert Johnson Plumbing
Robert Johnson Plumbing
5.0(
325
)
Tankless Water Heater - Repair

Serving Deerfield, NH and surrounding areas

Approved

In business since 2009

Free estimates

Offers commercial services

"Robert was very responsive to my request for a water heater replacement. His pricing was competitive, and his crew was prompt and professional. The work was complete less than 24 hours after first contact. I recommend Robert Johnson Plumbing and plan to be a repeat customer, myself"
2 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Action Plumbing Heating And Air
Action Plumbing Heating And Air
4.9(
92
)
Tankless Water Heater - Repair

Serving Deerfield, 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 Deerfield, 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 Deerfield, 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

41 neighbors recently requested a quote
Avatar for A.R. Borges Mechanical LLC
A.R. Borges Mechanical LLC
5.0(
15
)
Tankless Water Heater - Repair

Serving Deerfield, NH and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"I had a leaking faucet Andrew was quick to respond. We went over a couple options but i decided to go with a new faucet swap. Andrews pricing was very affordable, he showed up when he said he would he was clean and his work is high quality. I will definitely be using this business again for my plumbing needs."
My jobs
My jobs
My jobs
My jobs
My jobs

+25

11 neighbors recently requested a quote
Avatar for Heritage Home Service
Heritage Home Service
4.5(
464
)
Tankless Water Heater - Repair

Serving Deerfield, 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
349 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for St Pierre Plumbing & Drains LLC
St Pierre Plumbing & Drains LLC
5.0(
6
)
Tankless Water Heater - Repair

Serving Deerfield, NH and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

Professional Plumbing & Drain Cleaning in Raymond, NH.\nAt St. Pierre Plumbing & Drain Cleaning, we believe you shouldn't have to gamble on the quality of your plumbing. We deliver top-tier residential and commercial plumbing solutions with honest communication, transparent pricing, and dependable workmanship every step of the way.

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20 neighbors recently requested a quote
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