These openers ensure utmost safety and security for garages under any conditions. They are also provided with several options and in various designs to suit the exact requirements of the user. The best thing is, they can be installed within 3-5 hours (even do-it-yourself ones). A professional can install a garage door opener in 1 hour!Locksmith in Cumberland
Garage door openers are of two kinds depending on the use: residential and commercial. In the commercial range of garage door openers, the main models are: Trolley, Jackshift, Hoist and the Slide models. While Trolley openers are used for standard lifting on sectional doors, Jackshift is used for grilles, rolling doors and shutters. Hoist operators are similar to Jackshifts but they are also suitable for heavy duty industrial doors. The slide door openers are meant for single and bi-parting slide doors and also for fire doors.

The main step in purchasing a garage door opener is to determine the actual drive system. Garage door openers are of three kinds depending on the drive system: belt driven, chain driven and direct drive. The most important points to be considered in a garage opener system are the kind of motor and the horsepower. Garage door openers differ in speed also. The average speed is 7 inches lift/drop per second. There are openers that operate at even double this speed.

Garage door openers are provided with different kinds of warranties. Safety is another important aspect while choosing the right garage door opener. It is mandatory that all automatic door openers should be equipped with a non-contact invisible beam system that can sense the approach of a person and make the door to reverse back to the open position. Other mandatory features of garage openers are: automatic lights, a timed reversing feature, a manual emergency release cord and a force adjustment feature.

Garage door openers are usually noisy but some advanced models are being designed to be really quiet. Proper maintenance and lubrication would also lessen the noise made by garage door openers. On the whole, garage door openers should be weather resistant, safe, and should have the least wire exposure for long life.
Garage doors can also be operated by a remote control. This is especially useful for people who have homes with multiple garages. However, it is better to have a rolling radio signal code for the control as it is easy for thieves to capture the code from thin air. Garage door openers can also have an automatic light, remote control and a wall operatorScience Articles, as well as the option of single/two/three button transmitters.