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

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

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 The whole job took a single day and he even removed and disposed of the old outdated appliances.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

Serving Deerfield, NH and surrounding areas

Approved

In business since 2003

Free estimates

Customers say: Quality work

"Joe is a very trustworthy and reliable plumber. He has done several projects for me over the years. Jobs have included the installation of new water faucets as well as the installation of fiberglass walk in shower stalls. He does outstanding work at reasonable prices."
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 Soulios Heating & Cooling, LLC
Soulios Heating & Cooling, LLC
5.0(
17
)
Tankless Water Heater - Install

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 - Install

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 - Install

Serving Deerfield, NH and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

"Very professional work, he walked me through every step of the way. I would hire him in a New York minute for my plumbing and heating needs, he also installed my mini split system and his guys did a phenomenal job. To find a mechanical contractor in the area was a breath of fresh air."
My jobs
My jobs
My jobs
My jobs
My jobs

+25

11 neighbors recently requested a quote
Avatar for Pine Valley Plumbing
Pine Valley Plumbing
5.0(
7
)
Tankless Water Heater - Install

Serving Deerfield, NH and surrounding areas

Approved

In business since 2024

Free estimates

Offers commercial services

"I received service from this company for the first time for a toilet that my son plugged up. They were very professional and thought they were fair in price since it was a very big job. I would highly recommend them for any plumbing needs."
On the job
On the job
On the job
On the job
On the job

+2

Recommended by14%of homeowners
Avatar for Derry Plumbing & Heating
Derry Plumbing & Heating
3.7(
43
)
Tankless Water Heater - Install

Serving Deerfield, NH and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"When our existing water tank started to falter we knew we needed to upgrade. Derry Plumbing and Heating installed a phenomenal tankless system for our 3800+ sq foot home and we never had a reason to complain. Our energy costs went down and we always had hot water for our family of 5 and numerous guests."
Rinnai install
Designer shower
Drain line
Showroom shower/tub stall
Faucet fixtures

+2

Response time10 hrs
Response rate98%
9 neighbors recently requested a quote
Showing 1-10 of 45

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