CSG Employees Group

Serving You For Over 40 Years

Clark Service Group is a multifaceted service company headquartered in Lancaster, Pennsylvania. Clark Service Group's factory trained technicians provide businesses with installation, service, parts replacement and preventative maintenance programs tailored to individual business needs. With over 40 years of experience servicing customers in Pennsylvania, Maryland, New Jersey and Delaware, Clark Service Group has become a trusted name in the building services industry.

Service Request
Service Territory
Our Customers
Parts Request