Expert Heating System Maintenance, Repair, & Installation in Central PA

Heat pumps work hard in cold weather — and a little maintenance goes a long way. Summers & Zim’s offers tune-ups, repairs, and full system replacements across Lancaster, Chester, and Delaware County to keep your home comfortable even on the coldest days.

Switching from oil to gas can cut your heating costs nearly in half — and Summers & Zim’s has been handling oil-to-gas conversions across Southeastern PA for decades. Our experienced technicians make the transition smooth, safe, and worth every penny.

Split ductless systems are a smart solution for homes without ductwork, additions, and smaller spaces — but they still need expert care. Summers & Zim’s services ductless systems across Lancaster, Chester, and Delaware County, keeping your comfort on track year-round.