Chain drive garage door openers are considered 'classic' garage door openers. A trolley is pulled back and forth along a track; the door is attached to the trolley by a draw-bar. Although this type of operator isn't the most expensive, chain drives are still found on heavy-duty operators due to their strength. Chain drive operators have the disadvantage of being noisy, which is why they are particularly suited to detached garages.
A screw drive garage door opener runs on a steel threaded rod. An electric motor turns the rod, moving the trolley and door attached to it. Its simplicity is what attracts people to this type of opener. DIYers find screw-drive openers to be the easiest to maintain.
Learn more about garage door openers here at Overhead Door CT. Overhead Door CT is based in Preston, CT and we're happy to serve customers in Bozrah, East Lyme, Franklin, Griswold, Groton, Lebanon, Ledyard, Lisbon, Montville, Mystic, North Stonington, Norwich, Old Lyme, Salem, Sprague, Stonington, Voluntown, Waterford, Baltic, Jewett City, North Franklin.
Learn More: https://ohdct.com/residential-doors
Previous Post: https://local.google.com/place?id=3862407046066641134&use=posts&lpsid=8868332319568708183
via GMB Posts For Location "Overhead Door Company of Norwich CT" https://local.google.com/place?id=3862407046066641134&use=posts&lpsid=6875205328317506199