Knowledge Center

Extension springs

Counterbalanced springs which provide lifting power by stretching. Also called stretch springs. Extension springs are mounted to the rear track hangers on each side of the garage. They are attached to a pulley at the other end of the spring.
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Caspersen Garage Doors
1 Jonathan Bourne Drive (Suite 3), Pocasset 02559 | Phone: (508) 563-5633 | Fax: (508) 403-0334


Area served: Falmouth, Bourne, Mashpee, East Sandwich, Sandwich, Martha's Vineyard, Buzzard's Bay, Hyannis, Centerville, Osterville, Cotuit, Marstons Mills, Orleans, Brewster, Dennis, Yarmouth, Chatham, Harwich.
Business hours: Monday - Thursday from 8AM to 5PM; Friday 8AM to 4PM; Saturday by appointment.

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