A garage door is a large door on a garage that opens either manually or by an electric motor (a garage door opener). Garage doors are often made of metal, wood, or fiberglass.

The working principle of a garage door is very simple. It is basically a large door that is opened either manually or by an electric motor. The door is usually made of metal, wood, or fiberglass. When you push the button to open the garage door, the electric motor activates and pulls the door up along the tracks. There are springs that help to balance the weight of the door and make it easier to open and close.

There are many different types of garage door repair companies like Windtek, each offering a different set of services. Here is a look at some of the most common services offered by these companies:

• Replacement of broken or damaged garage door parts: This is one of the most common services offered by garage door repair companies. If your garage door is not working properly, it is likely that one or more of its parts are broken or damaged. A good repair company will be able to replace these parts quickly and efficiently, getting your door back up and running in no time.

• Emergency repairs: If your garage door breaks down in the middle of the night or on a weekend, you don't have to wait until regular business hours to get it fixed. Many garage door repair companies offer emergency repair services, so you can get your door fixed as soon as possible.
• Regular maintenance: Just like any other type of machinery, garage doors need to be regularly maintained in order to function properly. Many repair companies offer monthly or yearly maintenance plans, which can help keep your door in good working condition and prevent future problems. 
• Replacement of garage door openers: If your opener is not working properly, it may be time to replace it. Many garage door repair companies offer replacement services for both manual and electric openers.
• Installation of new garage doors: Some homeowners may want to install a new garage door altogether. Garage door repair companies can help you select the right type of door for your home and then install it correctly.

At least once a month, take a close look at your garage door to make sure all the parts are in good condition and functioning properly. Check the tracks for alignment and look for any bent or broken parts. Also, be sure to lubricate the tracks and hardware periodically to keep everything running smoothly.