DIY kits delivered anywhere in Victoria.
Professional installation via authorised regional distributors (details below).
Australia's Original
AS/NZS 4859.2:2018
Licence 7177
For Garage Door Systems
Building to 7 stars? ThermaDoor is the only garage door insulation with the engineering documentation your energy assessor needs.
ThermaDoor is designed and manufactured in Queensland, with our factory at Chevallum on the Sunshine Coast. When you order ThermaDoor in Melbourne or anywhere in Victoria, you are buying Australian made insulation from a business that has engineered its product specifically for the Australian climate.
Melbourne's summers are unpredictable but the heat is real. Northerly winds push garage temperatures well past 50°C in an uninsulated space, and west-facing doors cop it hardest. ThermaDoor's EPS core and reflective foil backing work together to block radiant heat and keep the garage usable, whether your door faces north, west, or straight into the afternoon sun.
Victoria's weather swings are hard on uninsulated spaces. Summer heat, autumn rain, cold snaps and everything in between puts pressure on your garage environment year-round. ThermaDoor's laminated vinyl finish is water resistant and impact resistant, unlike open-cell foam, polyester batts, or fibreglass insulation that absorb moisture and deteriorate over time. Built to handle whatever Victoria throws at it.
Melbourne winters are genuinely cold, with overnight temperatures regularly dropping to single digits. ThermaDoor slows heat loss overnight, so stepping into your garage on a winter morning is not the shock to the system it used to be — and your stored gear, tools, and vehicles stay protected from the cold year-round.
Victoria's NCC 7-star energy requirements have applied to all new homes and major renovations since May 2024. An uninsulated garage door performs at approximately R0.0 — one of the biggest thermal liabilities in any home. ThermaDoor is the only garage door insulation in Australia with independently calculated assembly R-values to AS/NZS 4859.2:2018. When your builder or energy assessor asks about garage door insulation, ask for ThermaDoor by name.
Read more about why winter is one of the strongest arguments for garage door insulation →
“I took the time to do my research and was able to find ThermaDoor. I can honestly say it was the only product on the market that I felt was actually going to perform to the highest possible standard. It felt like a consultation based on data and not a sales pitch — but it was very interesting to hear about some of the traps of cheap products who actually will have a significantly inferior performance.”
Matthew converted his garage into a home gym and spent time researching every insulation option on the market before choosing ThermaDoor. Melbourne’s summer northerlies push uninsulated garage temperatures well past 50°C — a home gym becomes unusable without proper insulation. ThermaDoor’s three-layer panel system delivers independently tested R-values that cheap foam alternatives cannot match.
Peter Harding shares his experience with ThermaDoor garage door insulation after having it installed three times over 12 years.
With a stable, comfortable temperature year-round, Melbourne and Victoria homeowners are reclaiming their garages as usable living spaces.
Here is how ThermaDoor changes what you can do with your garage.
Train comfortably year-round — no more sweltering summers or chilly winters.
Quieter, more stable temperatures for better focus and lower energy bills.
A retreat that stays cool in summer and warm in winter for real downtime.
Consistent conditions that protect materials and make projects more enjoyable.
A safer, more comfortable space for children’s play – fewer drafts and hot/cold spots.
A calmer climate for pets, reducing heat stress in summer and chills in winter.
ThermaDoor has been on the Australian market since 2012 — and in that time, no other brand has matched what we offer:
Ready to get started? Get a quote or shop DIY kits →
Surface temperature readings: 37.6°C at the steel hinge (thermal bridge) / 32.6°C at the ThermaDoor panel
What you are seeing: The blue areas show ThermaDoor panels doing their job — blocking radiant heat. The red and orange areas are the steel hinges and panel joins conducting heat straight through the door. This is thermal bridging, and it happens in every sectional garage door. It is why material R-values alone do not tell the full story — and why ThermaDoor’s R-values are calculated on the complete installed door assembly, steel and all.
In Melbourne and Victoria, the difference between a material R-value and a tested door assembly R-value is the difference between a product that looks good on paper and one that actually keeps your garage cooler. ThermaDoor’s R1.43 is tested on a complete installed door — steel, hinges, and all.
Our article on thermal bridging and garage doors explains why tested assembly values matter.
Are you a builder, architect, or energy assessor? View our Trade & Industry Hub for full NatHERS and NCC 2022 compliance data.
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, year after year.
Durable, flame retardant, UV-resistant vinyl facing protects the panel from Australia's harsh climate. It resists fading, cracking, and weathering — delivering a clean, professional finish that holds its appearance and structural integrity for the life of the door.
Bonded to the back of every panel, this construction-grade foil reflects radiant heat, acts as a Class 2 vapour barrier, and achieves Group 1 fire performance classification. It's the same foil used to wrap Australian homes — completing the three-layer system.
Registered Australian Design. Protected under the Designs Act 2003 (Cth). Unauthorised reproduction prohibited.
To understand how garage door insulation works and what to look for, read our garage door insulation guide before you buy.
Want to insulate your Melbourne or Victoria garage door? You have two options — insulate your own garage with our DIY kit, or let us insulate your garage through an authorised local distributor. Same product, same quality, same result.
DO IT YOURSELF
Want to insulate your own garage in Melbourne, Geelong, Ballarat, Bendigo, the Mornington Peninsula, Latrobe Valley or anywhere across Victoria? ThermaDoor DIY kits ship direct to your door. Each kit is purpose-built for sectional and tilt doors and comes with everything you need to complete the job yourself in a few hours. No trades required.
Not sure if garage door insulation is right for you? Read why garage door insulation is worth it in Australia.
Indicative Prices only. Use the shop to see your exact price including freight to your postcode, no account required.
| Door Size | Panels | Price (from) |
|---|---|---|
| Single Door | 8 panels | From $290 |
| Single Door (Large) | 10 panels | From $340 |
| Double Door | 16 panels | From $580 |
| Double Door (Large) | 20 panels | From $680 |
* Prices include GST. Freight not included — calculated at checkout based on your postcode. No obligation to buy.
WE DO IT FOR YOU
ThermaDoor is supplied and installed by authorised distributors. Find your nearest distributor below.
Looking for other areas? See our list of professional distributors Australia wide.
ThermaDoor DIY kits deliver to any address in Victoria. Professional installation is available through our authorised distributor network across the state. Whether you are in Melbourne’s suburbs, on the Mornington Peninsula, or in regional Victoria, ThermaDoor is available to you.
Brighton, St Kilda, Richmond, Hawthorn, Box Hill, Ringwood, Frankston, Dandenong, Pakenham, Narre Warren, Berwick, Cranbourne, Moorabbin, Glen Waverley, Werribee, Sunshine, Essendon, Brunswick, Coburg, Preston, Thomastown, Epping, Craigieburn, Sunbury
Geelong, Ballarat, Bendigo, Shepparton, Wodonga, Wangaratta, Warrnambool, Mildura, Sale, Traralgon, Mornington, Rosebud, Torquay, Lorne, Echuca, Swan Hill, Horsham, Ararat, Hamilton
DIY kits ship to all Victorian postcodes.
BEFORE YOU BUY
Most garage door insulation products are marketed using terminology borrowed from walls and ceilings. This free checklist gives you the five questions that cut through the noise — and that most suppliers cannot answer.
See why tens of thousands of Australian homeowners choose the only purpose-built garage door insulation made in Australia.
Ready to transform your garage?
Yes — and Melbourne’s climate is one of the strongest arguments for it. Summer northerlies push uninsulated garage temperatures past 50°C, while winter overnight lows regularly drop to single digits. ThermaDoor’s EPS core and reflective foil backing work in both directions, blocking radiant heat in summer and slowing heat loss in winter. The result is a garage that stays 10 to 15 degrees closer to ambient temperature year-round, which makes a measurable difference to both comfort and energy bills in a home with an attached garage.
Professional installation in Victoria is available through ThermaDoor’s authorised distributor network. Distributors are located in Shepparton, Pakenham, Geelong and Mildura. Contact us and we will connect you with your nearest authorised ThermaDoor installer. If you are in Melbourne metro or an area not covered by a local distributor, our DIY kit ships direct to your door and can be installed in a few hours without trades.
ThermaDoor DIY kits start from $290 for a standard single door (8 panels) and $580 for a double door (16 panels), delivered anywhere in Victoria. Professional installation pricing varies by distributor and door size — contact your nearest authorised ThermaDoor installer for a quote. Compared to the cost of running air conditioning to compensate for an uninsulated garage, most Melbourne homeowners recover the cost within the first summer.
Yes. ThermaDoor’s laminated vinyl finish is water resistant and impact resistant, which means it handles rain, humidity and temperature swings without absorbing moisture or deteriorating. Unlike fibreglass batts or open-cell foam products that can sag or absorb moisture over time, ThermaDoor panels are purpose-built to maintain performance through the full range of Victorian weather conditions.
Yes — ThermaDoor DIY kits ship to any Victorian postcode, including Geelong, Ballarat, Bendigo, Shepparton, Wodonga, Warrnambool, Mildura, the Mornington Peninsula, Latrobe Valley and all regional areas. Orders are dispatched from our Queensland factory and delivered via standard freight. Most Victorian deliveries arrive within 3 to 5 business days.
ThermaDoor is designed specifically for sectional panel doors and tilt doors, which are the most common garage door types in Victorian homes. It is not suitable for roller doors. If you are unsure whether your door is compatible, check our door compatibility guide or contact us before ordering — we would rather help you confirm fit than have you order the wrong product.
The simplest way to insulate your Melbourne garage is with a ThermaDoor DIY kit, delivered directly to your door. Each kit comes with purpose-built EPS panels sized for your door, a reflective foil backing, and everything you need to complete the job yourself in a few hours — no trades, no adhesives, no special tools. If you prefer to have it done for you, contact us and we will connect you with an authorised ThermaDoor distributor in your area.
Yes. Since May 2024, all new homes and major renovations in Victoria must achieve a 7-star NatHERS energy rating. An uninsulated garage door is a thermal bridge that leaks heat in winter and absorbs it in summer, dragging down your home’s overall efficiency. By installing ThermaDoor, you add a verified assembly R-value of R1.43 (winter) to the largest opening in your home, significantly improving its thermal envelope and helping you align with the new 7-star standards.
Need more details? See our full Garage Door Insulation FAQs for compliance, R-values and warranty.
Below is our step by step video guide on how to insulate your garage door with ThermaDoor Garage Door Insulation – Australia’s ONLY PURPOSE MADE garage door insulation!
Call, text, or send an enquiry below to see if we have an installer in your area.
