4.9 
34 *The Angi rating for Water Heater Service companies in Barnstable, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
*The HomeAdvisor rating for Water Heater Service companies in Barnstable, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Water Heater Service needs.
Last update on March 25, 2026
Serving Barnstable, MA and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"On time, fast and competent. Will hire again for future plumbing needs."
Serving Barnstable, MA and surrounding areas
Approved (Corporate)
In business since 1944
Free estimates
Emergency services offered
"My electrician from Cotti-Johnson HVAC was a master electrician. If you get him, you are getting the best. I went with the most expensive work package of the 3 that were presented. First off, it was pricey. I knew that going in. I want Cotti-Johnson to understand that I am serious about a working relationship with them. I feel I have done that with their electrical department. Now, if I need their plumbing or HVAC service, our relationship can build off the first experience."
+56
Serving Barnstable, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2006
Free estimates
Emergency services offered
"My boiler stopped working and we had no heat or hot water. CMK P&H responded quickly, diagnosed the issue, resolved the issue promptly and charged a fair price. Professional, courteous and friendly. I am glad I found them! Thank you!"
+4
Serving Barnstable, MA and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"KMD was super responsive to our desperate need to replace a failed hot-water heater. We reached out at 10 AM, they were over at 1 PM to do an assessment of the situation and estimate and completed the job by 10 AM the next morning. Seeing as this was our rental property, our renters were minimally inconvenienced as well. We were very happy with all of the team on KMD who came to our rescue."
Serving Barnstable, MA and surrounding areas
Approved
In business since 2004
Free estimates
Warranties offered
"Went great! Steve is a great guy I thought it was going to be a small job but it ended up being my water heater needed to be replaced but I expected that because the water heater was 7 years old"
Serving Barnstable, MA and surrounding areas
Approved
In business since 1990
Emergency services offered
Warranties offered
"They came to my home showed me what needed to be done and they went and got the water heater. When they came back a short time later they had the tank and installed it in an hour with new pipes and a new shout off that I can do."
+24
Serving Barnstable, MA and surrounding areas
Approved
In business since 1982
Free estimates
Emergency services offered
"He arrived within the specified time slot. He tried to get the water heater to light but it would not. He ordered a new water heater to be delivered to our cottage from the plumbing supply company. It arrived and he installed it. We are satisfied."
Serving Barnstable, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Offers commercial services
"He came on time and installed 2 toilets for me —well done job"
Serving Barnstable, MA and surrounding areas
Approved
In business since 2002
Free estimates
Emergency services offered
Dempsey Energy is a family owned and operated full-service HVAC company located in North Attleborough. We feel your property is comprised of several systems to ensure comfort and convenience. However, just like any equipment, major heating and cooling systems will eventually require service to keep it working efficiently. If you live in North Attleborough, or anywhere in Massachusetts, count on Dempsey Energy for all your heating and cooling needs. With over 30 years of experience, our team is highly familiar with the common nuisances and solutions to get your major systems running efficiently again. Call today to schedule an appointment, as we're anxiously awaiting your next project and looking forward to keeping you comfortable all year round!
Serving Barnstable, MA and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"These people are HIGHLY professional and do the work RIGHT AWAY! Very reasonable prices! Would hire again!"
+54
From average costs to expert advice, get all the answers you need to get your job done.
Looking to replace or upgrade your water heater? Use this water heater replacement cost guide to see what the work will cost and what factors affect your total.
Learn all the factors that influence the cost to install a heat pump water heater at your home.
A water heater flush costs $160 on average but can vary based on the unit size, type, labor, location, and more. Keep reading to learn how much you could pay.
Done with cold showers and dish washing? Hire a water heater installation pro near you to get back to comfort and safety quickly.
Who can install a water heater for you? Look to hire a water heater installation pro or a licensed plumber for this job because of the challenges involved.
The average lifespan of water heaters is 6 to 15 years for conventional models and up to 20 for tankless ones, but it can be less if they are not properly maintained.
