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!!

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!!

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

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