Third generation family owned and operated, D & D Heating & Cooling, Inc. has been installing systems in new and existing construction. Founded in 1970, D & D Heating & Cooling has earned a reputation as one of the Lehigh Valley’s most quality-conscious HVAC installation firms.

A full range of HVAC products is available through D & D, including air conditioning, hot air, heat pumps, boilers, and gas furnace systems. Only proven-reliable, brand name products such as Lennox, York, Bradford White, Rheem, and Weil-McLain are used.

D & D’s company slogan, “Your Comfort Is Our Concern,” provides a concise summary of our business philosophy. Both builders and homeowners can be assured that when D & D tackles an installation, it will be done right and function properly. More important, if a problem does arise, we will correct it quickly and courteously.

Underscoring our success in delivering on our promises, most of D & D’s business comes from longtime customers. While new business is always welcome, D & D works hard to build and maintain long-term, personable relationships.

D & D Heating & Cooling, Inc. is a member of the Lehigh Valley Builders Association, ACCA- Air Conditioning Contractors Of America and the Better Business Bureau.

Did you know…

NATE Certification

D&D technicians are NATE Certified. NATE certifications are trained on the latest technologies and techniques for improving energy efficiency. You can be sure that your equipment operates with optimal performance so energy bills are lower and your home is more comfortable. NATE technicians are proven to have fewer callbacks. This means that the job will be done right the first time.


D&D Heating & Cooling is one of three contractors in the Lehigh Valley area able to do ENERGYSTAR Version 3 homes. To be eligible to install HVAC equipment in homes certified under Version 3, HVAC contractors must be credentialed through an EPA–recognized industry organization. Version 3 includes new and more rigorous requirements for builders, raters, and HVAC contractors.