Serving Old Mystic, CT and surrounding areas
Angi Approved
In business since 2002
Free estimates
Customers say: Quality work
"Friendly and efficient"

Serving Old Mystic, CT and surrounding areas
Angi Approved
In business since 2002
Free estimates
Customers say: Quality work
"Friendly and efficient"

Serving Old Mystic, CT and surrounding areas
Angi Approved
Super Service Award Winner
In business since 2023
Free estimates
Emergency services offered
"After another vendor recommended major repairs to a central AC system, so I called Parker Heating and Cooling to get another quote. Although I did not ask for a diagnosis, Jeremy inspected the system and discovered an overlooked minor problem, which he took care of. His diligence and honesty saved us thousands of dollars! Jeremy was very responsive and easy to deal with and checked back to make sure the problem was resolved. These days "five stars" has diminished in meaning, but this truly was excellent service!"





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Serving Old Mystic, CT and surrounding areas
Angi Approved
Super Service Award Winner
In business since 2003
Emergency services offered
Warranties offered
"Amilcar was professional from the start to the finish. He was efficient too. He was very neat and kept the work area clean. I will certainly call on Diamond Plumbing and Heating again should I need service of the type they provide"





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