Since 1920, five generations of the Redding family have proudly served Mercer County and surrounding New Jersey and Pennsylvania communities. We’re not a rebranded private equity operation chasing quarterly profits. We’re not owned by private equity, while keeping the local name and branding. And we’re not a distant statewide company with call centers far away.  

We’re your local family business — owners who answer the phone, technicians and office staff who live nearby, and a company that stands behind every job (big & small) because our name and reputation are on the line in the same neighborhoods where we work and raise our families. 

Customers benefit from: 

• True Local Family Ownership — Decisions made in Princeton, not by distant investors. Personal accountability you can count on. 

• Faster Service & Better Inventory — Large local stock means same-day or next-day repairs while others wait for shipments. Your comfort matters! 

• Honest, No-Pressure Expertise — We’ll give you clear, straightforward options tailored to your home or business, your needs, and your budget. Our Trane Comfort Specialists, Mitsubishi Diamond Contractors, and NATE-certified technicians will help you pick the perfect system — one that saves you money on energy bills while keeping your home or business as comfortable as possible.