What's the difference between belt, screw and chain garage door openers?

The main difference is in the system the unit uses to open the door. Chain-drive systems are among the most common and the noisiest options, using a metal chain along a track. Screw-drive systems feature a lifting mechanism that needs minimal maintenance because it has fewer parts. Belt-drive systems are among the more modern options. These garage door openers are the quietest, smoothest types.

I want to buy a universal garage door opener remote, but what should I look for?

Start by considering how many doors you need the remote to operate and then consider the other features you might need. Some models open a single door, while others operate two or three doors to service larger garages. Other helpful features include wireless programming for convenience, a slim design and bright LED lighting so you can us them easily in the dark.