How to Adjust Garage Door Height – Safely and Efficiently

Instead of having to manually pull your garage door up or down when you need it to be opened or closed, you can settle for a simpler solution — utilizing your garage door opener. In order to enjoy all of the benefits of a garage door opener, the garage door height needs the proper adjustment. It is also vital for the security and energy efficiency of the garage door system. Luckily, adjusting a garage doors height is a simple DIY task that can be completed within fifteen minutes. This article will show you how to adjust garage door height so that you can conveniently open or close your garage, while also ensuring that you’re doing it correctly.

How to Adjust Garage Door Height - Safely and Efficiently Why You Need To Adjust Garage Door Height

  • To enable the efficient operation of the safety reversal system
  • To prevent damage to vehicles
  • To seal entrance from intruders – animals or thieves
  • To avoid injuries and accidents for doors that reverse when closing


Tips to Remember

Sensor Problems: For garage doors that stop when closing and reverses at a lower height, the problem is likely to be with safety sensors. Your initial assessment of the problem should involve checking the sensors on both sides of the opening. There could be something clogged in them or are obstructing them, preventing the door from closing completely.

Limit Screws: This is the most common cause of garage door height problems. Your garage door might be using nuts or plates or any other fastening mechanism. To adjust your garage door height, you will need to reset the points which the door stops when opening and closing.

Step by Step Process of Adjusting Garage Door Height

Step 1

Place your ladder underneath the garage door opener and ensure that it is stable.

Step 2

Find the limit adjustment screws on either side of the opener. These screws are usually made of plastic and labeled either “Up” and “Down” or “Open” and “Close.”

Step 3

If you want to increase the opening clearance, turn the Open and Up screws in a clockwise direction, increasing its opening allowance. Adjust the screws by one full turn.

Step 4

Climb down and test the garage door opener to see if the height has adjusted to your desired level. Use the garage door remote control unit to close and open the door at least three times to assess the height at which the door opens. If the height is not at the level you want, get back up the ladder and repeat Step 3 to adjust the limit switch further.

Step 5

For a door that is not closing completely, locate the Down or Close screw on the opener and adjust it in an anticlockwise direction. Check the closing performance of the door as in Step 4 above and keep tightening the close screw until the door closes tightly.

Step 6

For blocked sensors, clean the photoelectric eye and align the sensors that reverse the garage door. The eye needs to be aligned with the reflector on either side of the sensors. Test the door open again as in Step 4 to see whether the door works correctly.

Next Steps


It is easy to adjust the garage door height – this work involves changing the up and down screws and adequately aligning the sensors until you achieve the desired results. This article showed you a step-by-step guide on how to adjust garage door height on your own within fifteen minutes; regardless of what material your garage is made out of. This could include aluminum and glass overhead garages, or real wood garages. Good luck!