Est. 2012
Australia's Original
Independently Tested
AS/NZS 4859.2:2018
Australian Made
Licence 7177
Purpose Built
For Garage Door Systems
Built for Australian Conditions
Every design decision was made with Australia’s climate in mind – including extreme summer heat
Built to Last
A 35mm flame-retardant polystyrene core with a durable vinyl face. Handles the daily movement of a garage door — no sagging, no crumbling, no falling apart.
Verified R-Values
R1.48 (winter) / R1.43 (summer) — independently calculated to AS/NZS 4859.2:2018 and backed by engineering reports. No other garage door insulation kit in Australia can say that.
Lightweight Design
Adds just 7–8kg to a standard double door. Spring tension is easily adjusted — no structural concerns, no door damage.
Fire Resistant
Made with a flame-retardant polystyrene core. Self-extinguishes on contact with flame in accordance with Australian standards for flammability testing.
ThermaDoor — Who Is It For?
Whether you’re a homeowner looking to improve comfort or a trade professional specifying insulation solutions — ThermaDoor has you covered.
DO IT YOURSELF
DIY Kit
Everything you need to insulate your own garage door in a few hours. No special tools, no trades required. Our step-by-step guide walks you through the whole process.
WE DO IT FOR YOU
Supply & Install
Prefer to leave it to the experts? Our professional installation teams service the Gold Coast, Brisbane and Sunshine Coast. We measure, cut, and fit for your sectional and tilt door – you just enjoy the result.
The Professional's Choice
Designed by a licensed builder who couldn’t find a product that met real construction standards — so he built one. Australia’s only purpose-built, independently tested garage door insulation with verified R-values and full technical documentation.
Tested & Certified
Independently tested to AS/NZS 4859.2:2018. Verified R-values you can specify with confidence.
Engineering Reports
Thermal documentation available for NatHERS compliance and energy assessments.
Trade Supply
Flexible supply arrangements for garage door businesses, builders, and installers across Australia.
Technical Support
Our team understands the technical requirements. We're here to help you specify the right solution.
See the Difference ThermaDoor Makes
Real installs. Real results. Read the full comparison.
DIY Kit — Installed by a homeowner
From generic foil to purpose made ThermaDoor
Supply & Install — Professional fit by our team
| Before ThermaDoor | After ThermaDoor | |
|---|---|---|
| Summer temperature | Garage reaches 50°C+ | Noticeably cooler — less heat into adjoining rooms |
| Winter comfort | Cold, damp, unusable space | Warmer and more usable year-round |
| Noise | Traffic and rain echoes through | Significantly reduced outside noise |
| Energy bills | Heat transfers into home, AC works harder | Reduced heat load on your cooling system |
| Insulation fit | Generic products that don’t fit properly | Purpose-built panels cut to your exact door |
| Installation | Complicated DIY with wrong materials | Simple DIY kit or professional supply & install |
Don't Just Take Our Word For It
See why over 20,000 Australian homeowners choose the only purpose-built garage door insulation made in Australia.
What DIY Customers Are Saying
Straight from the people who installed it themselves.
Ready to Transform Your Garage?
Australia’s only purpose-built garage door insulation — independently tested, made to fit, built to last.
Servicing Gold Coast, Brisbane & Sunshine Coast ·Distributors available Australia-wide