Energy Efficient Heating & Cooling Solutions


Specializing in high-velocity
HVAC & geothermal systems
Year-Round Comfort Since 1970


Contact our air conditioning and heating experts about your project today.

Contact my HVAC Expert

Sales, Installation, Maintenance & Repair

WaterFurnace® Geothermal Heat Pumps

American Standard® HVACProducts

Warm Air, Hydro Air, Boilers, Furnaces

Hot Water Heating Systems and Storage

Unico® High Velocity Small Duct

Ductless Heating & Air Conditioning System

Oil, Gas and Solid Fuels

And More!

heating & air conditioning
heating & air conditioning
heating & air conditioning

Who We Are


Enjoy year-round comfort with heating & cooling services from our HVAC company in Enfield, Connecticut.

Established in 1970, D & D Heating & Air Conditioning provides quality installations for years of trouble-free economical operation.


heating and air conditioning
heating and air conditioning
heating and air conditioning
heating and air conditioning

Geothermal Systems


Optimize your indoor comfort the eco friendly, energy conscious way, with Geothermal heating and cooling. Our systems use an underground loop to transfer heated and cooled air into the home, depending on the season.

heating and air conditioning

HVAC Systems


Keep the air flowing smoothly and efficiently with air duct systems, heating, and air conditioning products. Heating and Cooling is undoubtedly important. We have a proven track record of superior customer service and excellent workmanship.

heating and air conditioning

Online Special: $500


$500 Discount: Offer valid on any WaterFurnace of Unico System & Installation when you mention our website. Not valid with any other offers.
Expires 6/31/15

heating and air conditioning

Rebates and Tax Incentives


There are several state programs that help homeowners replace older, less efficient HVAC systems with new high-efficiency equipment. Whether you are considering geothermal or Energy Star equipment, our team can help you find the right program.