Who We Are

Comfort Experts for Over 50 Years

Your Trusted Commercial and Home Comfort Experts. Dual Temp Co., Inc.

For over 50 years, Dual Temp has been the region’s trusted “Comfort Experts,” delivering comprehensive residential and commercial solutions across Pennsylvania and New Jersey. Founded in 1970 and headquartered in Allentown, PA, we’ve grown into a full-service mechanical contracting firm—specializing in HVAC, plumbing & pipe-fitting, construction services, and cutting-edge building automation controls. Whether it’s a single-family home or a sprawling industrial plant, our team combines deep industry expertise with the latest technology to keep your environment safe, efficient, and comfortable year-round.

What We Do

From design and installation to preventative maintenance and emergency response, Dual Temp handles every phase of mechanical systems with precision and care. Our services include:

• Residential & Commercial HVAC: Air conditioning, heating, boiler and chiller repair, and VRF systems.
• Plumbing & Pipe-fitting: Sanitary and storm piping, domestic hot-water systems, gas-fired lines, and NFPA-certified fabrication of carbon steel, stainless steel, PVC, and specialty alloys.
• Building Automation & Controls: Integrated platforms that link HVAC, lighting, security, and analytics for real-time monitoring and energy optimization.
• Construction & Upgrades: Turnkey build-outs, system retrofits, and specialty projects—backed by custom preventative-maintenance plans and free system inspections.