Top-rated tankless water heater installers.

Get matched with top tankless water heater installers in Forestdale, MA

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

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

Avatar for Cotti Johnson HVAC, Inc.
Cotti Johnson HVAC, Inc.
4.3(
63
)
Tankless Water Heater - Install

Serving Forestdale, MA and surrounding areas

Approved (Corporate)

In business since 1944

Free estimates

Emergency services offered

"I appreciated being able to speak with someone in the office to explain my situation (leaking water heater), and having someone come to my home so quickly to go over my options for dealing with the problem. Dylan, Aaron and the entire crew were so professional and knowledgeable about the on-demand hot water system we chose to install. They were a pleasure to work with, and I would highly recommend them to friends in need of similar services."
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation
Home Standby Generator Installation

+56

Response time9 hrs
Response rate97%
94 neighbors recently requested a quote
Avatar for NORTHCOAST PLUMBING & HEATING
NORTHCOAST PLUMBING & HEATING
5.0(
46
)
Tankless Water Heater - Install

Serving Forestdale, MA and surrounding areas

In business since 2007

Free estimates

Warranties offered

"My wife and I were very thankful for Rob's ability to explain the multiple aspects of each job entailed. This was especially helpful given the house is almost 200 years old. Most repairs were to decades old plumbing to bring it up to current code. In addition, we have hired him to install a new gas range in the kitchen and a large water tank. We will soon be engaging him to assist us with updating two of our original bathrooms. I would highly recommend him for your plumbing needs. Rob was always extremely professional, efficient and courteous. He showed up when promised and completed the work on a timely basis. Art Adams Eastham, MA"
Whole House Remodel
Whole House Remodel
Tiled Shower
Kitchen Sink
Showrr

+6

Response time5 hrs
Response rate91%
Recommended by4%of homeowners
Avatar for All Phases Mechanical
All Phases Mechanical
4.5(
75
)
Tankless Water Heater - Install

Serving Forestdale, MA and surrounding areas

In business since 1983

Free estimates

Emergency services offered

"Our experience with All Phases Mechanical has been excellent. On the first occasion we used APM, we lost heat during a cold snap in the middle of winter. We called in the morning and a technician arrived that afternoon and quickly determined that not only was our 20 year old furnace in need of expensive repairs (which a friend of ours in the construction industry validated), but continuing to run it would potentially result in a carbon monoxide hazard to my family. Carl gave us clear options and helped us understand benefits (rebates, no interest loans, etc.) that are available from the state to assist families in our predicament. We decided to move forward with a new furnace and Carl's team installed it the next day. On the second occasion, APM helped us our central air conditioning system. Again, Carl sent a technician who arrived promptly the same day, who determined that the air conditioning system was fine but it wasn't working properly due to faulty wiring. He quickly fixed it and was on his way - all at no charge. I can't say enough about All Phases Mechanical. If you're looking for a local company that cares about its customers (and understands that heating and cooking problems need to be addressed quickly), All Phase Mechanical is the company you should use."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Recommended by90%of homeowners
Avatar for Harbor Master Plumbing & Heating, Inc.
Harbor Master Plumbing & Heating, Inc.
4.7(
15
)
Tankless Water Heater - Install

Serving Forestdale, MA and surrounding areas

In business since 2019

Free estimates

Warranties offered

"John Perez loves what he does and values the solutions he brings to folks in need of the basics, heat and hot water! He was generous with his time in educating me about boilers in order that I might feel actively involved in choosing the right heating system and, in the end, be satisfied with that choice. He is secure in himself and his professional abilities. With his support, maturity, resilience and a willingness to factor in my thinking, he gave me room to consider options and find my way toward the right solution for our project. I felt my best interest was his interest. Most importantly, he is trustworthy."
Kitchen Remodel
HE Boiler Install
Rinnai OnDemand
Water Heater Install
Fire Pit Connection

+3

Response time1 day
Recommended by61%of homeowners
Showing 1-10 of 37

The Forestdale, MA homeowners’ guide to tankless water heater installations

From average costs to expert advice, get all the answers you need to get your job done.