Our Company

Refrigeration Service Company is a family-owned business dedicated to the design, layout, installation, service and maintenance of commercial refrigeration, supermarket refrigeration, industrial refrigeration and HVAC systems. In business since 1972, Refrigeration Service is owned and operated by John H. Dieffenbach III. We are on call 24-hours per day, seven days per week for emergency service to help you with your commercial refrigeration needs. We do not service residential customers.

If you need commercial service please call 570-323-0382 anytime day or night.




225 Valley St. S. Williamsport, PA 17702 PH: 570-323-0382 Fax: 570-323-9976

Refrigeration Service Company

Refrigeration Service Company

Email: refser@comcast.net

E-mail is for inquiries during office hours only; call for after-hours service