DIY kits delivered anywhere in New England & the Snowy Mountains
Single door from $330 | Double door from $660
Professional installation via our authorised distributors
Tamworth | Armidale | Cooma | Jindabyne | Inverell | Tumut | Glen Innes | and more
Est. 2012
Australia's Original
Independently Tested
AS/NZS 4859.2:2018
Australian Made
Licence 7177
Purpose Built for Garage Doors
Verified R1.43 – independently tested by a qualified thermal engineer. Full test report available to view
From the scorching summer days in Tamworth and Armidale to the hot inland afternoons across the New England tablelands, ThermaDoor dramatically reduces radiant heat transfer, keeping your garage significantly cooler during long, dry summers.
The Snowy Mountains and higher elevations around Cooma and Jindabyne experience hard frosts, ice, and alpine conditions in winter. ThermaDoor's laminated vinyl finish is water-resistant and won't absorb moisture, unlike open-cell foam or polyester batts that can sag, degrade, and hold dampness over time.
New England and Snowy Mountains winters are among the harshest in NSW. ThermaDoor slows heat loss overnight, so stepping into your garage on a winter morning is no longer a shock — and your stored gear stays protected year-round.
ThermaDoor gives builders, homeowners and energy assessors verified garage-door assembly R-values, backed by an independent engineering report, to review when the garage affects comfort, heat transfer or adjoining living areas — whether for a new build, renovation or existing home. Ask any supplier for their engineering report.
Read more about why winter is one of the strongest arguments for garage door insulation →
47.6°C
UNINSULATED PANEL SURFACE TEMPERATURE
17.4°C
THERMADOOR PANEL SURFACE TEMPERATURE
30.0°C
SURFACE TEMP REDUCTION
Australia’s original purpose-built garage door insulation — independently tested, made to fit, built to last.
Are you a builder, architect, or energy assessor? View our Trade & Industry Hub for full NatHERS and NCC compliance data.
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.
Our article on thermal bridging and garage doors explains why tested assembly values matter.
Want to insulate your 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 Tamworth, Armidale, Inverell, Glen Innes, Cooma or anywhere across New England & the Snowy Mountains? 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.
Not sure if garage door insulation is right for you? Read why garage door insulation is worth it in Australia.
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.
WE DO IT FOR YOU
Rather let us insulate your garage for you? ThermaDoor is supplied and installed by authorised distributors across the Mid North Coast. Find your nearest distributor below.
Armidale
Armidale City Garage Doors
Armidale NSW 2350
ThermaDoor provides garage door insulation across New England & the Snowy Mountains. Nearby New South Wales service areas include the Hunter Valley, Dubbo & Bathurst Echuca & Moama and greater Sydney, or view all NSW locations on our New South Wales garage door insulation page.
Looking for other areas? See our list of professional distributors Australia wide.
Use the calculator below to estimate the possible payback and long-term value of insulating a suitable New England and Snowy Mountains garage door with ThermaDoor.
These estimates apply to ThermaDoor only and cannot be assumed for other products used as garage door insulation.
Your climate affects how much thermal load your garage door creates and how much insulation can help.
Larger doors have more surface area, so insulation has a greater impact on thermal load.
These factors determine how much the garage door's thermal performance affects your living spaces and energy use.
Your electricity rate
Your results are ready
Based on your inputs
Thermal performance — before & after
Without ThermaDoor
R0.0
Uninsulated steel door
No thermal resistance
ThermaDoor
R1.43
Winter assembly R-value
R1.39 summer
AS/NZS 4859.1 & 4859.2:2018
What ThermaDoor does for your door
Estimated annual energy saving
$250 – $450
Typical estimate · per year
Kit cost (DIY)
—
Typical payback
—
10-yr return
—
Calculated for ThermaDoor only — Australia's original purpose-made, independently tested garage door insulation
Conservative
$120 – $250
per year
Typical
$250 – $450
per year
High Usage
$450 – $700+
per year
Return on investment — based on your DIY kit price
| Scenario | Annual saving | Payback | 10-yr saving |
|---|
Kit from $330 inc. GST. Freight additional — calculated at checkout.
Your inputs
Peter Harding shares his experience with ThermaDoor garage door insulation after having it installed three times over 12 years.
Real results for real New England & Snowy Mountains homeowners
I had my west facing garage door insulated and sealing brushes added to stop dust, some of the best money I have ever spent on a house improvement. Great service, efficient and reasonably priced. I would recommend in a flash.
We’re super impressed with our newly-installed Thermadoor insulation, it works a treat on our north-facing garage door and looks very sharp. Top marks for customer service and Caleb’s very neat and tidy job on the install. Highly recommend this outfit
This is a great product and service. Installed them myself and they work amazingly well. Great price compared to other companies who quoted me and Peter was super helpful in getting the sizing just right. Thoroughly recommend this product and company.
Australia’s original purpose-built garage door insulation — independently tested, made to fit, built to last.
With a stable, comfortable temperature year-round, New England & Snowy Mountain 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:
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. As the primary insulator in the composite system, it works in tandem with the foil and air cavity to deliver the verified assembly R-value.
Laminated to the back of every panel, this construction-grade foil reflects radiant heat back across the internal air cavity — the gap maintained by ThermaDoor's purpose-made foam packers. The foil only works because the gap is engineered. Together they form the reflective half of ThermaDoor's composite technology. The foil also acts as a Class 2 vapour barrier and achieves Group 1 fire performance classification — it's the same foil used to wrap Australian homes.
The composite system only performs if the materials stay intact. This durable, flame retardant, UV-resistant 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.
Armidale, Tamworth, Inverell, Glen Innes, Guyra, Uralla, Walcha, Narrabri, Moree
Cooma, Jindabyne, Bombala, Tumut, Tumbarumba, Adaminaby, Berridale, Delegate
DIY kits ship to all New England & Snowy Mountains NSW postcodes.
Also servicing Hunter Valley.
Australia’s original purpose-built garage door insulation — independently tested, made to fit, built to last.
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.
Yes — and in this region it works harder than almost anywhere else in NSW. New England & Snowy Mountains homes experience both extreme summer heat and sub-zero winter temperatures. ThermaDoor’s EPS panels block up to 90% of radiant heat in summer and significantly slow heat loss in winter, making your garage usable year-round rather than a space you avoid for six months of the year.
Yes. ThermaDoor panels use a laminated vinyl facing that is water-resistant and will not absorb moisture, sag, or degrade in cold, damp alpine conditions. Unlike open-cell foam or polyester batts, ThermaDoor is purpose-built for Australian conditions and will not be affected by frost, condensation, or the freeze-thaw cycles common in higher elevation areas like Jindabyne and Cooma.
Yes. ThermaDoor DIY kits are designed for homeowners with no trade experience. Each kit is purpose-built for your specific door size — sectional or tilt — and ships directly to your door anywhere in the New England & Snowy Mountains region. Most installations are completed in a few hours using basic hand tools. Full instructions and video guides are included.
Yes. ThermaDoor has authorised distributors in Armidale, Tamworth, and Cooma who can supply and professionally install ThermaDoor insulation. Contact details are listed on this page. If you are in a more remote area, a DIY kit delivered to your door is the most practical option.
Yes. NSW’s NCC 7-star energy requirements apply to all new homes and major renovations. 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.
ThermaDoor panels are engineered for long-term durability in all Australian climates, including cold alpine environments. The EPS core does not absorb moisture and the laminated vinyl facing resists UV, frost, and temperature cycling. ThermaDoor carries a manufacturer’s warranty and has been independently tested to Australian standards. There is no maintenance required after installation.
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 or send an enquiry below to see if we have an installer in your area.
