Australian Made garage door insulation panels for sectional and tilt doors. Help reduce heat transfer through a hot, sun-exposed garage door. DIY kits delivered Australia-wide, with professional installation available in selected areas.
SUNNY 28°C AUTUMN AFTERNOON
44.7°C uninsulated | 30.8°C with ThermaDoor installed
13.9°C COOLER DOOR SURFACE
Published installed-assembly R-values: R1.43 winter / R1.39 summer — backed by an engineering report.
Est. 2012
Australia's Original System
Verified R-Values
R1.43 Winter / R1.39 Summer
Australian Made
Licence 7177
Lightweight
About 7kg - Double Door
Composite Technology
Purpose Built for Garage Doors
15 Year Warranty
Complete ThermaDoor Panel System
A large, sun-exposed metal garage door can add heat to the space—particularly when it is dark-coloured or receives strong afternoon sun. ThermaDoor helps reduce heat transfer through the door, while roof and ceiling insulation, shading, ventilation and weather seals also affect overall garage comfort.
Direct sun can heat a large metal garage door, especially on a dark or west-facing door.
Insulation helps slow heat transfer through the garage door into the garage.
The best result comes from treating the door as one part of the garage, alongside roof insulation, shading, seals and ventilation.
35mm EPS core provides the primary thermal resistance in the ThermaDoor composite panel.
Flame-retardant, construction-grade expanded polystyrene foam is the primary insulator in every ThermaDoor panel. It slows conducted heat transfer through the door, keeping your garage significantly cooler in summer and warmer in winter. As the primary insulator in the composite system, it works with the laminated Sisalation foil backing and engineered air cavity to deliver the verified installed-assembly R-value.
Laminated Sisalation foil reflects radiant heat across ThermaDoor’s engineered internal air cavity.
Laminated to the rear of each panel, construction-grade Sisalation foil forms the reflective layer in the ThermaDoor composite system. Its low-emissivity surface works across the engineered internal air cavity, maintained by purpose-made foam packers. The foil also functions as a Class 2 vapour barrier and achieves Group 1 fire performance classification — it’s the same foil used to wrap Australian homes.
UV-stable laminated vinyl facing helps protect the EPS core and lamination bond, maintaining a clean, durable interior finish.
The composite system only performs if the materials stay intact. This durable, flame retardant, vinyl facing protects the EPS core and lamination bond from Australia’s harsh climate, resisting fading, cracking and weathering year after year. The result is a clean, professional finish that holds its appearance and structural integrity for the life of the door.
Choose the option that suits your garage door, location and preferred level of support.
DO IT YOURSELF
Measure your sectional or tilt garage door, order your kit online and install it using the included fitting guidance.
DIY kits delivered Australia-wide.
WE DO IT FOR YOU
Prefer to leave it to a professional? Check whether an authorised distributor is available in your area.
Yes. Garage door insulation helps reduce heat transfer through a hot, sun-exposed garage door. This can support a more comfortable garage in summer, particularly when the door receives strong direct afternoon sun.
There is no single temperature result for every garage. The outcome depends on the door’s colour and orientation, the roof and wall construction, existing insulation, ventilation, weather seals and local weather. ThermaDoor helps reduce heat transfer through the garage door as one part of the overall garage.
Yes. Dark-coloured and west-facing garage doors can receive strong afternoon sun. Insulation helps slow heat transfer through the door, making it a useful upgrade for garages that become hot during summer afternoons.
Yes. ThermaDoor panels are designed for existing sectional and tilt garage doors. Check your door type and measurements before ordering a DIY kit, or choose professional installation where it is available.
Yes. DIY kits are delivered Australia-wide for suitable sectional and tilt doors. If you prefer professional installation, you can check whether an authorised installer is available in your area.
Choose a DIY garage door insulation kit delivered Australia-wide, or check professional installation availability in your area.
DIY kits ship Australia-wide · Professional installation available through authorised distributors
The prices below are a guide only. For your exact price including freight to your door, grab a tape measure and use our shop — it takes two minutes, no account needed, and you’ll know exactly what you’re up for before you commit to a thing.
| Door Size | Panels | Price (from) |
|---|---|---|
| Single Door | 8 panels | From $330 |
| Single Door (Large) | 10 panels | From $380 |
| Double Door | 16 panels | From $660 |
| Double Door (Large) | 20 panels | From $760 |
* Prices include GST. Freight not included — calculated at checkout based on your postcode. No obligation to buy.
Most DIYers grab a tape measure and have their exact price in just a couple of minutes
Not ready to measure up just yet? Fill in our enquiry form — allow a few days during busy periods.
Call or send an enquiry below to see if we have an installer in your area.
