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D&D Heating & Cooling is a leading heating and cooling company in Lehigh Valley, PA and the surrounding areas. We specialize in heating and air conditioning installation, replacement, repair, and preventative maintenance. Our team knows everything about residential and commercial HVAC systems and nothing can stop us from giving you the quality of workmanship and service you deserve. We work with proven brands, such as Lennox, York, Bradford White, Rheem, and Weil-McLain. We are also proud to offer comprehensive comfort maintenance plans to both residential and commercial customers.