4.5 
575 *The Angi rating for Boiler Installation companies in Dennis, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
*The HomeAdvisor rating for Boiler Installation companies in Dennis, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Boiler Installation needs.
Last update on March 26, 2026
Serving Dennis, MA and surrounding areas
Approved (Corporate)
Super Service Award Winner
In business since 1948
Free estimates
Emergency services offered
"WORK NEEDED TO DO INSATLL WENT WELL. INSTALLER WAS VERY INFORMATIVE.EXPLAINED EVERYTHING NEEDED FOR THE JOB IN DETAIL. VERY PROFESSIONAL."
+62
Serving Dennis, MA and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"KMD replaced our 50 year gas boiler and added an additional zone . From the first contact, the estimate, and installation KMD was on time, professional, skilled, and courteous. All the work was completed beyond my expectations while working with our schedules. They went the extra mile taking necessary protections during these difficult times of the virus. KMB is the company we will call for all of our plumbing needs and recommend to friends and neighbors. Thank you for a great job!!!!"
Serving Dennis, MA and surrounding areas
Approved
In business since 1944
Free estimates
Emergency services offered
"Everyone I spoke to at Cotti-Johnson from the estimate through to installation of my generator were polite, professional and a pleasure to deal with. At the outset, the scope of the project and its cost was explained to me in simple and understandable language. The installation took place precisely on schedule and was completed within 3 hours. I received the necessary follow-up calls from the office to ensure the work was done to my satisfaction. I couldn't be happier with Cotti-Johnson."
+56
Serving Dennis, MA and surrounding areas
Approved
Super Service Award Winner
In business since 1996
Free estimates
Emergency services offered
"Braga Brothers provided exceptional service during my gas furnace installation. The team was punctual and efficient, completing the job with confidence and professionalism. They took care to protect my home and explained the system thoroughly, ensuring I understand the new system. I highly recommend Braga Brothers for anyone in need of HVAC services."
+16
Serving Dennis, MA and surrounding areas
Approved
In business since 2005
Free estimates
Emergency services offered
"Tatra has done a ton of work for me at multiple homes. * Install central AC * Replace boilers * Install appliances (in difficult old construction) * Create an outdoor shower and stone deck complex * Fix every little plumbing thing that goes wrong in an old house * Roof gutters and yard drainage improvement These are the one-stop shopping folks to call! And everyone who works there is so friendly, polite, and neat with their work. Always my first (and only) call."
+54
Serving Dennis, MA and surrounding areas
Approved
In business since 2021
Free estimates
Warranties offered
Family owned business with over 12 years of experience handling all your Heating & AC needs for residential and commercial. Master certified HVAC.
Serving Dennis, MA and surrounding areas
Approved
In business since 2010
Free estimates
Credit card accepted
At Parsons Plumbing and Heating, we pride ourselves on providing quality service that customers can believe in. Whether it's water heaters or well pumps, we can take care of all your plumbing needs. Ask us about our service! We look forward to working with you!\n\n\n\n
Serving Dennis, MA and surrounding areas
In business since 2002
Free estimates
Emergency services offered
"very pleased with my furnace installation . He and his so-worker were very professional and did a great job .I was pleased with the quality of the boiler and the cost as well. i would strongly recommend ."
Serving Dennis, MA and surrounding areas
In business since 1997
Emergency services offered
Credit card accepted
"Brian has installed and repaired at least a dozen HVAC systems and condensers in both my investment and personal properties. Always shows up when he says he will and gets the job done. Always a pleasure to deal with. He knows what he’s doing which is tough to come by"
+1
Serving Dennis, MA and surrounding areas
In business since 2013
Free estimates
"Excellent, every visit has been very good. The service also includes window washing, and the group did a wonderful job."
+21
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