Dual Temp Co., Inc.

We are a trusted mechanical contracting firm based in Allentown, Pennsylvania, serving Eastern Pennsylvania and New Jersey since 1970. We specialize in commercial HVAC systems, industrial plumbing, and advanced building automation solutions, while also providing high-quality residential HVAC services through our dedicated Dual Temp Home Services division. With over 50 years of experience, we combine comprehensive expertise with responsive, personalized service.