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1:51 video with Jacob Swenson

How to Insulate a Garage Door

Insulating your door's panels keeps the garage more comfortable and makes the door quieter. Jacob shows how to fit insulation panels and finish the edges with trim.

What you'll need

  • Insulation panels sized for your door
  • A utility knife
  • Trim pieces

Step by step

  1. Get the right size

    Measure each panel's height first. Sections commonly come in sizes like 18, 21 and 24 inches.

  2. Cut to width

    Cut each insulation piece to fit the width of the panel opening.

  3. Set the bottom edge

    Push the bottom of the insulation all the way into the lower groove.

  4. Tuck in the top

    Bow the middle toward you and push the top under the upper lip. Start it, and once you're past halfway, it finishes easily.

  5. Add trim

    Cut trim pieces to fit under the metal edges and press them in to cover the cut ends for a clean look.

It's fiddly work. If you'd rather skip it, an insulated replacement door is another option worth pricing.

Filmed in 2012. The basics haven't changed, but newer doors and openers may differ a little. Springs and cables are under high tension, so never adjust them yourself.

Door acting up? Talk to Jacob.

Tell us what's going on and get a straight answer and a clear price. $19.95 off any repair for new customers.