There are several aspects to take into account when choosing a garage door opener. The most important is the type of drive system you want. A chain-drive system is the most common and the cheapest, averaging 150 US dollars (USD). A garage door opener with a screw-drive system runs along a threaded steel rod or plastic-lined track. This model is slightly more expensive, but produces less noise and requires very little maintenance.
The third most common drive system for a garage door opener is a belt drive mechanism, which uses flexible rubber belts. These garage door models start at 200 USD and are the quietest option. More complicated models may require professional installation, which can add up to 150 USD to the total price.
The next consideration when choosing a garage door opener is the amount of power you need. A single door will probably work fine with the smallest motor, but a double door will require at least ½ horsepower. A direct current (DC) motor uses less electricity than other models and allows for better control of speed and noise.
If safety is important, consider choosing a garage door opener with a safety mechanism. This usually consists of an electronic beam that stops the door from closing completely if anything crosses its path. Another safety feature is a rolling code, which changes the opening signal each time the door is activated. This protects the security code and prevents crossed signals with neighboring doors. Some garage door openers can be turned off if you go away for an extended period of time.
It is standard for a garage door opener to include an electric remote control and a manual release in case the power is ever out in the house. Some remotes are small enough to fit on a keychain. Others include a second button that triggers a light inside the garage. Another type of garage door opener consists of a fixed keypad that can be mounted to the wall. This is usually sold as an accessory.
Always look for the simplest garage door opener model that fits your needs. Fewer parts mean less maintenance and lower prices.