The way a garage door works is very simple, up and down, left and right,  open and closed again and again, year after year. Suddenly one day it doesn't work very well, there is a problem somewhere, maybe it takes simple maintenance and quick repairs to continue working.

To inspect the corners of your garage door step-by-step:

1. With prolonged use, the rollers and tracks of the garage door are worn out, if you don't remember when it was last cleaned, use a good brush to clean the rollers and tracks now. Apply lubricant, or replace rollers that are not smooth.

2. To tighten the hardware. Various hardware screws can loosen due to the vibration of a bulky garage door as it slides, including the overhead brackets for the garage door, and the screws for the rails. Make sure that the screws in these parts are firm, and loosening the screws is a more dangerous thing.

3. The sealing brush of the garage door is a very important part to prevent insects from entering the garage, bite and destroy, and prevent dust from entering the garage. Therefore, it is necessary to check the garage door sealing brush at a certain time and replace it in time.

4. The long-term exposed side of the garage door has been eroded by rainwater and needs to be painted so that it will not be so easily oxidized and eroded.

These are some of the problems I found in the maintenance of the garage door to pay attention to, I hope it can help you, and there are other garage door problems, I hope you can also come to communicate.