4.6 
1.7k+ *The Angi rating for Nest Installation companies in Bellingham, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
*The HomeAdvisor rating for Nest Installation companies in Bellingham, MA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Nest Installation needs.
Last update on July 16, 2025
Serving Bellingham, MA and surrounding areas
Approved
Super Service Award Winner
In business since 1988
Emergency services offered
Warranties offered
"Bob did a great job installing the two exhaust hoods I needed done."
+33
Serving Bellingham, MA and surrounding areas
Approved
In business since 2008
Emergency services offered
Warranties offered
"Install one smart thermostat and rewire two other thermostats. Very knowledgeable and great service"
+52
Serving Bellingham, MA and surrounding areas
Approved (Corporate)
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 Bellingham, MA and surrounding areas
Approved
In business since 2005
Free estimates
Small jobs welcome
"Great work for a reasonable price. Would definitely hire him again."
Serving Bellingham, MA and surrounding areas
Approved
In business since 2008
Free estimates
Emergency services offered
"Scott was very professional and communicative about the part needed and installed. Thanks"
Serving Bellingham, MA and surrounding areas
Approved
Super Service Award Winner
In business since 2008
Emergency services offered
Warranties offered
"Very happy with services in transition from previous Framingham-based heating company. Competitive price, prompt response, professional installation and great offers follow up enabling us to get mass heat rebate."
+50
Serving Bellingham, MA and surrounding areas
Approved
In business since 2022
Free estimates
Emergency services offered
"Metro West Mini Splits recently installed 6 mini splits in February 2025 to our new home in Marlborough, MA. Alan, Jamie, and their team were so kind, respectful, knowledgeable, timely, communicative, and easy to work with. We could not be happier with the final product! Metro West Mini Splits was also very reasonably priced, and they made the Mass Save rebate process a breeze. 100% would recommend to anyone needing heating or cooling services!"
Serving Bellingham, MA and surrounding areas
Approved
In business since 1995
Free estimates
Emergency services offered
"Peter called me an hour after I contacted Home Advisor and was there to look at the job the same day. Work was completed quickly and professionally. A pleasure to do business with."
Serving Bellingham, MA and surrounding areas
Approved
In business since 2010
Emergency services offered
Offers commercial services
"Joe was so helpful with my projects. I will hire him again!"
Serving Bellingham, MA and surrounding areas
Approved
In business since 2015
Warranties offered
Small jobs welcome
(Professional HVAC Inc.) is committed to excellence every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than (6) years of experience serving ( Millbury, MA ) and surrounding areas. There is no job too big, or too small for our team. Call today and,let us put our experience to work for you. \n
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