Best Heating & Air Conditioning / HVAC In Guilford

“So glad I called them! Canestei was recommended to us by a family member and they did not steer us wrong. The technicians were honest and efficient. They could have very easily charged us more for unnecessary work but they were upfront and explained in detail what they did and why. Looking forward to working with them again.

5/5/2025 Editing to add another great review! Corey and Jason were dispatched to our home to help with a leak that had been plaguing us for quite some time. They were kind, professional and helpful. My kids were extra curious about what they were up to and they were very gracious with them being around.

Canestri, you have some great people working for you; keep it up! We have inherited a bit of a water nightmare in our home which will need continued maintenance and repair and you can be sure we will be sticking with these guys for years to come.“

“Excellent, knowledgeable plumbing and hvac pro. Came within hours of our call, investigated and solved the issuein within 1/2 hour. Charge was way below expectation. Definitely would call again, and trust his expertise and meticulous style, without question.“

“These guys are top notch! It was a pleasure working with their staff, they were professional and pleasant. Thank you for coming out to wallingford guys!“

“A few years ago I moved my business to JJ Sullivan because of their reputation and I have not been disappointed. They installed a new furnace and the workmanship was outstanding. They respond almost immediately to any inquiry. I am often away from home but I trust them that if I need them to respond they will. Good old New England service from a family business. WAY worth the few extra dollars.“