How to change a garage door opener?

How to change a garage door opener?


Changing a garage door opener may seem like a daunting task, but with the right knowledge and tools, it can be a relatively straightforward process. Whether you’re replacing an old opener or installing a new one, this article will guide you through the necessary steps to successfully change a garage door opener.

Gather the Necessary Tools and Materials

Before you begin, it’s important to gather all the tools and materials you’ll need for the job. Here are the common items required:

– New garage door opener
– Mounting brackets
– Fasteners (screws, nuts, bolts)
– Safety sensors
– Remote control(s)
– Wall control panel
– Lubricant

– Power drill
– Screwdriver (flathead and Phillips)
– Adjustable wrench
– Tape measure
– Level
– Step ladder


Before starting the installation process, make sure to turn off the power to the garage door opener at the circuit breaker. This will ensure your safety while working on the electrical components.

Remove the Old Garage Door Opener

To remove the old garage door opener, follow these steps:

1. Disconnect the power cord from the electrical outlet.
2. Remove any accessories or attachments, such as safety sensors or remote controls, from the old opener.
3. Locate the mounting brackets that secure the opener to the ceiling or wall. Use a screwdriver or power drill to remove the screws or bolts holding the brackets in place.
4. Carefully disconnect the opener from the garage door by removing the connecting arm or chain.
5. Once the opener is detached, remove it from the mounting brackets and set it aside.

Install the New Garage Door Opener

Now that the old opener is removed, it’s time to install the new one. Follow these steps:

1. Attach the mounting brackets to the ceiling or wall according to the manufacturer’s instructions. Use a level to ensure they are properly aligned.
2. Connect the opener to the mounting brackets using the provided fasteners. Make sure it is securely attached.
3. Install the safety sensors near the bottom of the garage door, on each side. These sensors prevent the door from closing if an object or person is detected in its path.
4. Connect the safety sensor wires to the opener according to the manufacturer’s instructions.
5. Attach the connecting arm or chain from the opener to the garage door. Adjust the length if necessary, ensuring the door opens and closes smoothly.
6. Install the wall control panel in a convenient location inside the garage.
7. Connect the power cord of the new opener to the electrical outlet.
8. Test the opener by operating the garage door using the remote control and wall control panel. Make sure it functions properly and the safety sensors are working.


Changing a garage door opener may seem like a complex task, but by following the steps outlined in this article, you can successfully replace an old opener or install a new one. Remember to gather all the necessary tools and materials, prepare the area, and carefully follow the manufacturer’s instructions. Safety should always be a priority during the installation process.


– Chamberlain:
– LiftMaster:
– The Home Depot:
– Lowe’s: