DIY kits delivered anywhere in Hobart & Tasmania
Single door from $330 | Double door from $660
Professional installation via our authorised distributors
Hobart | Launceston | Devonport | and more
Est. 2012
Australia's Original
Independently Tested
AS/NZS 4859.2:2018
Australian Made
Licence 7177
Composite Technology
Purpose Built for Garage Doors
Verified R1.43 – independently tested by a qualified thermal engineer. Full test report available to view
Tasmania's winters are the harshest in mainland-adjacent Australia. Launceston regularly drops below 0°C overnight, and an uninsulated garage door bleeds warmth straight out of your home. ThermaDoor's EPS core and foil backing work together to slow heat loss and keep your garage usable through the coldest months, whether your door faces south, east, or straight into the morning frost.
Tasmania's high rainfall and humidity put pressure on garage environments in a way most mainland states never experience. 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 Tasmania throws at it, year after year.
Tasmania's summers can surprise you with warm, dry days — but temperatures plummet once the sun goes down. An uninsulated garage swings between extremes, putting stress on stored gear, vehicles, and anything temperature-sensitive. ThermaDoor stabilises the environment inside your garage, so your tools, equipment, and stored items stay protected from extreme fluctuations 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.
Standard uninsulated steel garage doors perform at approximately R0.0, providing virtually no thermal resistance. That is why there is a major difference between a product with a material-only R-value and a garage door insulation system with a verified assembly R-value. ThermaDoor’s composite technology — EPS core, reflective foil, and maintained air cavity — means each component contributes to that assembly R-value.
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 Hobart of Tasmania 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
ThermaDoor DIY kits ship direct to your door anywhere in Tasmania, including Launceston, Hobart, Devonport, Burnie, the Huon Valley 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
Prefer to have it done for you? ThermaDoor is supplied and installed by authorised distributors across Tasmania. Find your nearest installer below.
Hobart surrounds & all of Tasmania
On the Mark Garage Doors
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 Hobart and Tasmania 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 $320 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 Tasmanian 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, Hobart and Tasmanian 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.
ThermaDoor DIY kits deliver to any address in Tasmania. Professional installation is available through our authorised distributor network across the state. Whether you are in Hobart’s suburbs, on the Huon Valley, the Tamar Valley, or in regional Tasmania, ThermaDoor is available to you.
Sandy Bay, Battery Point, Glenorchy, Moonah, Rosny Park, Clarence, Howrah, Lindisfarne, Kingston, Huonville, Margate, Snug, Sorell, Richmond, Rokeby, Midway Point, New Norfolk, Bridgewater, Claremont, Austins Ferry
Launceston, Devonport, Burnie, Ulverstone, Penguin, Wynyard, Smithton, Queenstown, Strahan, Swansea, Bicheno, St Helens, Scottsdale, George Town, Deloraine, Longford, Campbell Town, Oatlands, Triabunna, Dover
DIY kits ship to all Tasmanian postcodes.
Australia’s original purpose-built garage door insulation — independently tested, made to fit, built to last.
Available Australia-wide — DIY kits ship nationally · Professional installation available in most states
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 — ThermaDoor DIY kits ship directly to any address in Tasmania, including Hobart, Launceston, Devonport, Burnie, and regional areas. Freight is calculated at checkout based on your postcode.
Absolutely. Tasmania has some of the most extreme temperature swings in Australia — hot, dry summers and genuinely cold winters with Antarctic air pushing up from the south. An uninsulated garage door acts like a giant heat sink in summer and a cold radiator in winter. ThermaDoor’s EPS panels significantly reduce that thermal transfer, making your garage more comfortable 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 Tasmania. In Hobart, Independent Roller Doors and On The Mark Garage Doors are our certified installers. Contact them directly or use our contact form and we will connect you with the right installer for your area.
Yes. ThermaDoor is purpose-designed for both sectional (panel-lift) garage doors and tilt doors, which are common in older Tasmanian homes. If you are unsure which door type you have, contact us and we can help you identify the right kit.
ThermaDoor’s laminated vinyl finish is water resistant and does not absorb moisture — unlike polyester batts or open-cell foam products that can deteriorate in Tasmania’s high-rainfall, high-humidity conditions. The panels will not sag, rot, or harbour mould over time.
DIY kit pricing starts from $290 for a single door (8 panels) and $580 for a double door (16 panels), not including freight. Freight to Tasmania is calculated at checkout. For a professional installation quote, contact your nearest authorised installer.
Yes — particularly in homes where the garage is attached or shares a wall with a living area, which is very common in Hobart and Launceston. Customers consistently report that insulating the garage door reduces the temperature bleed into adjacent rooms, lowers heating and cooling costs, and makes the garage itself usable year-round rather than just in mild weather.
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.
