Australian-made garage door insulation panels designed to fit new and existing sectional and tilt garage doors across Adelaide, the Hills, Barossa Valley & Regional South Australia.
SUNNY 28°C AUTUMN AFTERNOON
44.7°C uninsulated | 30.8°C with ThermaDoor installed
13.9°C COOLER DOOR SURFACE
Independently verified 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
Product Warranty
Core: life of door · Vinyl & Foil: 7 years
Designed for sectional and tilt garage doors in new builds, renovations and existing homes.
Include garage door insulation in a new build or renovation to support a more comfortable, energy-conscious home.
Purpose-made panels are sized and fitted to work with the movement and operation of sectional and tilt garage doors.
Choose a DIY garage door insulation kit or arrange professional supply and installation through our Adelaide authorised distributor network.
Garage door insulation is a practical upgrade for Adelaide and South Australian homes. Hot, dry summer afternoons—especially on west-facing garage doors—can turn a steel door into a major source of heat, while cooler winter mornings can leave the garage cold and uncomfortable. ThermaDoor helps reduce heat transfer through new and existing sectional and tilt garage doors, supporting a more stable, comfortable and usable garage all year round.
Want to insulate your Adelaide or South Australian garage door? You have two options — insulate your own garage with our DIY kit, or arrange supply and installation through an authorised Adelaide & South Australia distributor.
DO IT YOURSELF
ThermaDoor DIY kits ship direct to your door anywhere in South Australia, including Adelaide metro, the Adelaide Hills, Barossa Valley, Fleurieu Peninsula, Mount Gambier, Port Augusta, Whyalla and beyond. 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.
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
ThermaDoor is supplied and installed by authorised distributors across Adelaide & South Australia. Find your nearest distributor below.
Looking for other areas? See our list of professional distributors Australia wide.
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.
MELBOURNE BUILDER CASE STUDY
47.6°C
UNINSULATED PANEL SURFACE TEMPERATURE
17.4°C
THERMADOOR PANEL SURFACE TEMPERATURE
30.0°C
SURFACE TEMP REDUCTION
Adelaide's summers are brutal. Northerly winds off the desert push garage temperatures well past 50°C in an uninsulated space, and north-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 scorching afternoon sun.
South Australia's weather can shift dramatically in a single day. A 42°C northerly in the morning, a cool southerly change by afternoon — 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 deteriorate under repeated thermal stress. Built to handle whatever South Australia throws at it.
Adelaide winters are cooler than most people expect, with overnight temperatures regularly dropping to single digits and frosts common in the Hills. 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.
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 →
With a stable, comfortable temperature year-round, Adelaide and South Australian 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.
Our article on thermal bridging and garage doors explains why tested assembly values matter.
REAL ADELAIDE INSTALLATION | INFINITY SIGNS
ThermaDoor was installed first, then Infinity Signs in Adelaide applied custom vinyl artwork—showing how an insulated garage door can become part of a finished working space.
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.
Peter Harding shares his experience with ThermaDoor garage door insulation after having it installed three times over 12 years.
ThermaDoor DIY kits deliver to any address in South Australia. Professional installation is available through our authorised distributor network across the state. Whether you are in Adelaide’s suburbs, the Adelaide Hills, the Fleurieu Peninsula, or in regional South Australia, ThermaDoor is available to you.
Glenelg, Norwood, Unley, Prospect, Modbury, Tea Tree Gully, Salisbury, Elizabeth, Pooraka, Parafield, Mawson Lakes, Gawler, Morphett Vale, Hallett Cove, Reynella, Noarlunga, Christies Beach, Marion, Mitcham, Burnside
Barossa Valley, Mount Barker, Victor Harbor, Goolwa, Port Elliot, Murray Bridge, Mount Gambier, Port Augusta, Whyalla, Port Pirie, Kadina, Moonta, Wallaroo, Berri, Renmark, Naracoorte, Keith, Bordertown, Clare, Kapunda
DIY kits ship to all South Australian postcodes.
Use the calculator below to estimate the possible payback and long-term value of insulating a suitable Adelaide and South Australia 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
Yes — ThermaDoor DIY kits ship directly to any address in South Australia, including Adelaide metro, the Adelaide Hills, Barossa Valley, Fleurieu Peninsula, and all regional areas. Freight is calculated at checkout based on your postcode.
Absolutely. Adelaide regularly records some of the highest summer temperatures in Australia, with northerly winds pushing garage temperatures well past 50°C in uninsulated spaces. In winter, cold fronts from the Southern Ocean bring overnight temperatures down to single digits. ThermaDoor’s EPS panels significantly reduce that thermal transfer, making your garage more comfortable year-round and reducing the load on any heating or cooling in adjacent rooms.
Yes. The ThermaDoor DIY kit is designed to be installed by a homeowner with basic tools in a few hours. No trades are required. Full instructions are included, and our support team is available if you need guidance during installation.
ThermaDoor is supplied and installed by authorised distributors across South Australia. Allstyle Garage Doors in Pooraka services the Adelaide metro area, Copper Coast Garage Doors covers the Yorke Peninsula region, and J & M Door Services covers the Mount Gambier and south-east region. Contact them directly or use our Contact page to be connected with your nearest installer.
Yes. ThermaDoor is purpose-designed for both sectional (panel-lift) garage doors and tilt doors, which are common in older Adelaide homes. If you are unsure which door type you have, contact us and we can help you identify the right kit.
Yes, and the difference is measurable. ThermaDoor’s independently tested EPS panels and reflective foil backing are specifically designed to block radiant heat — the primary driver of extreme garage temperatures in Adelaide’s summer. Customers consistently report significant reductions in garage temperature after installation, particularly in north and west-facing garages that bear the full force of the afternoon sun.
Yes. ThermaDoor’s EPS core provides meaningful acoustic dampening, reducing street noise and the sound of the door operating. This is particularly noticeable in Adelaide homes on busy roads or in areas with high ambient traffic noise, and in garages that share a wall with a bedroom or living area.
Need more details? See our full Garage Door Insulation FAQs for compliance, R-values and warranty.
BEFORE YOU BUY
Most garage door insulation is marketed using terminology borrowed from walls and ceilings — R-values from raw materials, fixing methods designed for static walls, and compliance claims with no documentation behind them. This free checklist gives you six clear questions to ask before you buy, so you can compare any product — including ours — on the factors that actually matter.
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!
Get exact DIY pricing online or find professional installation near you.
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.
