Find out how Mullen Mechanical can work with you to select and install the best choice for air conditioning systems, furnaces, water heaters, boilers, and more.


We provide quality commercial HVAC Installations throughout central CT. We can help to select the right HVAC system and size for maximum efficiency.

Google Reviews

I have a Restaurant in Glastonbury called Giovanni's I have been in business for 20 years John and his3 great worker .he has been the best HVAC and Refrgeration company I ever had. . As soon as I call him he is right there and fix the problem. and he is a all in one company .Ac, Heating . Gas, refrigeration, , you won't have to call any one else john dose it all very hard to find a all in one company that actually shows up and dose a great job!! for a great price!!

Gary Delbon
July 30, 2023

An absolutely excellent first experience with Mullen today. We had an AC emergency in some brutal heat and a vacation scheduled in 2 days. Spoke with John who was super responsive, kind, and understanding. We were so grateful to be able to get same day service. Techs were PHENOMENAL. So kind and helpful and fixed the problem in no time. We are so appreciative of Mullen for exceptional service!!

Deanna Schuetz
July 30, 2023

Service with a smile. Our furnace decided this was its last year providing us with warmth! We made a big decision and called the best person we knew! Mullen Mechanical Heating and Cooling. They were professional and got the job done fast! Like I said, Service with a smile! Because of them we will survive many Connecticut Winters to come! I shop based on a few things and professionalism and trust are #number one. Thank You John

Darby Renee
October 30, 2022

John is a great guy. Super friendly with an awesome personality. Definitely my hvac go to guy.

Gabriel Ramos
August 30, 2022

Contact us for all of your heating and cooling needs