How to Install a Garage-Door Opener

All you need is three hours and these easy step-by-step instructions.

Nothing beats the convenience and security of an automatic garage door, and you can install one yourself with this three-hour project. Use the instructions as a general guide, and always stick to the manufacturer’s directions where appropriate.

Materials and Tools:

garage-door opener assembly kit (appropriate tools vary with kit)
ratchet set
pliers
wire cutters (to remove wire sheathing)

Steps:

  1. Spread the parts of the kit in front of you.
  2. Attach the rubber bumper and the coupler to the power head. Add the first rail section (with the carriage stop), and then attach the remainder of the rail sections.
  3. Attach the rail clamps where appropriate to the rail sides, and then slide the slide carriage into the carriage slot from the end of the rail. Next attach the rail straps to the end of the rail section.
  4. With the rail section complete, install the limit-switch wires in the groove of the rail assembly and attach the two limit switches; the first switch is placed about 6 inches from the end of the gray wire and the second about a foot from the end of the rail assembly. Attach the emergency release knob.
  5. Center the header bracket above the door and attach it to the wall. Attach the power unit to the ceiling. Attach the bracket to the door with lag screws.
  6. Insert the door arm and hold it in place with a clevis pin. Attach the other door arm to the traveler, again with a clevis pin. Overlap the door arms that run between the traveler (slide carriage) and the garage door, and secure with two bolts.
  7. Installing the switch is a simple matter of finding outlet wire, revealing the sheathing of red and white wire, attaching the exposed wire to the switch, and screwing the switch into the wall. Attach door sensors to either side of the garage door.
  8. Run the wiring to the power unit and plug it in.

Next Up

Install Electric Garage Door Opener

Add convenience while enhancing home security with a garage door opener.

How to Replace Garage-Door Panels

Step-by-step instructions for repairing damaged sections

How to Repair a Garage-Door Roller

Step-by-step instructions for replacing a broken wheel and bracket

How to Install a Dead-Bolt Lock

For burglar-proofing, it's a must-have.

Installing Pocket Doors

Steve Watson helps install pocket doors in keeping with the style of a Victorian interior.

Proper Garage Door Operation

With an automatic garage door, keep safety in mind.

How to Change the Frequency on a Garage Door Opener

If you’re trying to address common issues with your garage door opener and its remote controls, this is the article for you. Learn how your garage door remotes work and what you need to do to troubleshoot some basic problems.

How to Install a Screen Door

Installing a screen door can give you all the benefits of the outdoors without all the bugs and other unwanted visitors. Since screen doors are lightweight and are not used for security, many DIYers find it easy to install a screen door on their own.

How to Install Gutters

Protect against water damage to your foundation, basement and driveway with these instructions.

How to Build and Install a Sliding Door

See how we added privacy between bedroom and bathroom with a sliding barn door.

Go Shopping

Refresh your home with stylish products handpicked by HGTV editors.

Watch Live TV

Don't miss your favorite shows. Live stream HGTV now.

Follow Us Everywhere

Join the party! Don't miss HGTV in your favorite social media feeds.