WHY CHOOSE MAC HVAC?

We proudly offer the Trane and Mitsubishi lines of equipment for all your heating and cooling needs.  Our technicians are factory trained, and follow best installation practices,  

All of our Trane installations are backed by a 10 year parts warranty.  As a Mitsubishi Diamond Contractor, we offer 12 year parts warranties on all of our installations.  We can also warranty the labor for up to 10 years.

Don't take our word for it, see what our customers are saying.  https://www.facebook.com/MAC-HVAC-171747359547832/ 

There is still time to take advantage of 0% interest financing from masssave.com for high efficiency heating and cooling solutions.

MAC HVAC was voted Greater Chelmsford/Billerica Best of the Best HVAC Professionals in 2016, 2017, 2018, 2019, 2020 and 2021!

There are no surprises with MAC HVAC.  We tell you the costs before we complete any major repairs.  We accept cash, check, and all major credit cards.