Now offering excavation services including drain repairs, well line repairs, and yard hydrant trenching.

Your Neighbor in Home Comfort Since 1987

Since 1987, Groff's Heating & Plumbing has been helping families in Lancaster, Chester and York counties live better with high-efficiency heating and cooling, plumbing, electrical service and repair and bathroom remodeling.

Family owned and operated, Groff's Heating & Plumbing began as an HVAC company in the garage of DeVon Groff in Mountville, PA. In 1991, master plumber Dennis Dagen joined the company and developed the plumbing division. In 1993, Denny and DeVon formed a partnership and incorporated the business to create Groff's Heating & Plumbing.

In 2000, Denny and DeVon officially launched the electrical division and relocated the business to its present location in Willow Street, PA.

Groffs Home

The Partners

DeVon Groff
DeVon Groff

DeVon serves as the CEO of Groff's Heating & Plumbing and continues to shape the vision for the company both short and long-term. He continues to work in the HVAC sales department with over 40 years of experience.

Denny Dagen
Denny Dagen

Denny is the president and CFO of Groff's Heating & Plumbing, managing company operations. He has over 40 years of plumbing and electrical experience.

Junior Partners

Adrian Groff
Devon's son, Adrian became a Junior Partner in 2019.

Andrew Whittaker
Denny's son-in-law, Andrew, became a Junior Partner in 2020.

Andre Groff
Devon's son, Andre, became a junior partner in 2022.

Today Groff's Heating & Plumbing has grown to include many long-term employees, including certified and licensed technicians, over 15 licensed plumbers, and a fleet of over 50 trucks that serve customers across Lancaster, Chester and York counties. Groff's takes pride in being part of the local communities they serve, with a reputation for quality service in all areas of home comfort.

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