Garage Doors & Openers
There are three main types of garage-door openers (also known as garage door overheads), differentiated by the mechanical drive that lifts the door. The most common and least expensive garage-door openers use a chain looped around a rail. The quietest and most expensive models use a metal-reinforced rubber belt instead of the chain. Intermediate in cost and noise level are the screw-driven models, with a mechanism that moves up and down along a threaded steel rod. Experts say screw-driven units are powerful and, with the smallest number of moving parts, they can require the least maintenance. They are also a bit harder to find since there aren't as many of these models on the market. A newer technology using torsion springs are also available.
Garage Door Openers
Liftmaster is the #1 brand of professionally installed residential garage door openers. Unlike openers purchased from a retail hardware store it comes with a solid rail to prevent bending, a solid all around chain, and most important an in home warranty.