GARAGE
Garage Door Insulation Cost: DIY Kit vs Installed
Estimate garage door insulation cost — with the free calculator.
An uninsulated garage door is the biggest thermal hole in an attached garage. Insulating it is cheap, fast and pays back in comfort and energy — this guide covers the DIY kit and pro options.
THE SHORT ANSWER
The short answer
A DIY garage door insulation kit costs $50–$130 for a standard double door. Adding pro installation runs $100–$250 in labor. A new factory-insulated door costs $800–$2,000.
What it costs
Reflective foam kits are sized by door width and height — a double door is typically 16 × 7 ft. Kits run $50–$130; most homeowners install them in an afternoon.
- DIY kit, double door: $50–$130
- Installed by a pro: add $100–$250
- New insulated door: $800–$2,000
- DIY install time: 2–4 hours
When to upgrade instead
If the door is old, drafty and near the end of its life, a factory-insulated replacement usually makes more sense than insulating a failing door. R-value of 7–10 kits is enough for most climates.
Try the insulation calculator
Enter door width, height, kit cost and labor to see the total.