Garage door insulation panels: the DIY kit for your door
Rigid R1.5 PIR panels that line the inside of your door and block the heat. Up to 20°C cooler, fitted in an afternoon with a tape measure, a straightedge and a knife. Pick your size below.
Choose your kit size
From $370 inc GST, plus delivery at checkout. All sizes are the same R1.5 panel system. Not sure? Measure your door first.
What’s in the kit
Each kit contains one panel per section of your door. Every panel is PIR (polyiso) closed-cell foam with a tough white facing on both sides. The white facing reflects radiant heat and protects the foam, so the room stays cooler without your air conditioner working overtime, and the inside of the door looks finished rather than bare.
You also need (not supplied, already in most garages):
- Tape measure
- Straightedge or metal ruler
- Stanley knife or similar
No glue. No chemicals. No special tools.
Which size fits your door?
The kit comes in three sizes. Count the horizontal sections on your door, or use the measure guide if you are not sure.
| Kit | Panels | Suits | Price |
|---|---|---|---|
| Standard Single | 8 | A standard single garage door | $370 |
| Standard Double | 16 | A standard double garage door | $700 |
| Extra Large Double | 20 | A wider or taller oversized double | $880 |
All prices include GST, plus delivery, calculated at checkout.
Not sure of your panel count? Use our how-to-measure guide before you order. Five minutes with a tape measure removes any doubt, or call 1300 37 38 39 and we will confirm the right kit.
How to fit it yourself
Fitting takes about 2 to 3 hours on your first go. Measure each section, mark your cut line with the straightedge, then trim with the knife. The panels press into the door sections and hold in place. That is the whole job, repeated once per panel.
No builder. No glue. No chemicals. There is a step-by-step install video on the product listing at shop.kooldoor.com.au, filmed on a real door, so you can see exactly how each panel sits before you start.
Specs
| Spec | Detail |
|---|---|
| Sizes | Single (8), Double (16), XL Double (20) |
| Material | PIR (polyiso) closed-cell foam, white facing both sides |
| R-value | R1.5 |
| Temperature benefit | Up to 20°C cooler |
| Fire resistance | Fire-resistant PIR (not polystyrene) |
| Noise | Reduces outside noise into the garage |
| Guarantee | 10-year guarantee |
| Install time | ~2-3 hours DIY |
10-year guarantee
Every KoolDoor kit is backed by a 10-year guarantee. Shipped from Jamisontown NSW (5/77-79 Regentville Rd). Buy it once. It stays on the door.
Shipping and returns
DIY kits ship Australia-wide. Delivery cost is calculated at checkout based on your postcode. Most metro orders arrive within a few business days. Checkout completes securely at shop.kooldoor.com.au.
Questions before you buy? Call us on 1300 37 38 39 or email sales@kooldoor.com.au.
You might also need
Garage Door Seals Block draughts, dust, water and pests around the door frame. A common add-on with any insulation kit.
For the full background on how insulation works, read the garage door insulation guide.
Common questions
Will this kit fit my garage door?
It fits most standard sectional and tilt doors. Pick the size that matches your panel count: single doors usually have 8 sections, standard doubles 16, and oversized doubles 20. Measure your door first with our how-to-measure guide. If you are unsure, call 1300 37 38 39 and we will sort it out before you order.
How long does it take to fit?
About 2 to 3 hours for most people doing it themselves for the first time. You need a tape measure, a straightedge and a knife. That is it.
What tools do I need?
Tape measure, straightedge (a metal ruler works fine) and a Stanley knife. Nothing else. No glue, no drill, no chemicals.
Does it work on roller doors too?
The panels suit sectional and tilt doors. A curtain-style roller door rolls into a drum, so rigid panels cannot sit on the moving slats. There a seal kit around the frame is usually the better fix. Tell us your door type if you are unsure.
Why is PIR foam better than polystyrene?
PIR is fire-resistant. Polystyrene is not. PIR also holds a higher R-value per millimetre of thickness, so you get better thermal performance without bulky panels.
What R-value do the panels have?
R1.5. R-value measures how well the material resists heat moving through it, and a higher number means better insulation. R1.5 does genuine work to slow the heat coming off your door.
From $260 Garage Door Seals
Block draughts, dust, water, leaves and pests around the door frame. A common add-on with any insulation kit.
Shop Seals →Get a fixed-price install quote
We measure, cut and fit on site across QLD, NSW and TAS. A fixed price in 60 seconds.