DIY kits delivered Australia-wide.
Professional installation available through our approved distributor network in Tasmania
Australia's Original
AS/NZS 4859.2:2018
Licence 7177
For Garage Door Systems
ThermaDoor is designed and manufactured in Queensland, with our factory at Chevallum on the Sunshine Coast. When you order ThermaDoor for Hobart or anywhere in Tasmania, you are buying Australian made insulation from a business that has engineered its product specifically for the Australian climate.
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.
Read more about why winter is one of the strongest arguments for garage door insulation →
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, Hobart and Tasmania 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 Hobart and Tasmania, 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.
Whether you prefer to install it yourself or connect with an authorised ThermaDoor distributor, ThermaDoor is available both ways — with the same product, the same quality, and the 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.
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
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
Jared: 0459 846 551
Phillip: 0459 710 197
Looking for other areas? See our list of professional distributors Australia wide.
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.
BEFORE YOU BUY
See why over 20,000 Australian homeowners choose the only purpose-built garage door insulation made in Australia.
Posted on Google Caroline nTrustindex verifies that the original source of the review is Google. We purchased a DIY kit for our garage door to cool it down before installing a solar battery. We are really impressed with the results and have noticed a significant difference in the temperature since adding the insulation. Very glad we did it!
Owner's reply
Thank you so much, Caroline, this is exactly why we do what we do! 🙌 Preparing the garage for a solar battery is one of the smartest reasons to insulate first, and you've nailed the order of operations. Our customers regularly report temperature reductions of up to 20°C. A cooler garage isn't just more comfortable it's a better environment for battery storage. Most solar battery manufacturers specify an optimal operating temperature range, and an uninsulated steel garage door in an Australian summer can push well outside that range. You've protected your investment before it even arrived. Very glad we could be part of that.Posted on Google Shane WTrustindex verifies that the original source of the review is Google. Thermadoor's garage door insulation is the best. I have tried others and they dont even come close. Thermadoor is easy to install and the panel looks great. It looks very professional and not like an after thought. I cannot recommend this product enpugh. You will not be disappointed if you choose to go with Thermadoor insulation. Photos to come
Owner's reply
Thank you, Shane — "they don't even come close" is high praise and we genuinely appreciate you taking the time to share that. You've touched on something we hear a lot... ThermaDoor looks like it belongs on the door, not like something that was added as an afterthought. That comes down to the factory-laminated vinyl face and the mechanical fix system, which keeps everything flush and tight. It's designed to look like part of the door because it essentially becomes part of the door. We also love receiving photos from our customers and we're looking forward to seeing yours when they're ready! 📸Posted on Google Deborah RTrustindex verifies that the original source of the review is Google. I cannot speak highly enough of ThermaDoor and the product they have created. It is quite simply second to none. We had ThermaDoor installed on our new 16 panel, fully west facing garage door, and the result has exceeded anything I could have hoped for. The temperature in the space has now dropped by at least 20 degrees, which has completely transformed how we can use it. Our garage is not just a garage , it’s “the Cave” for my son, who is an NDIS participant, and his support team. We had already invested in an epoxy floor and replastering the space, but despite that, the heat made it almost unusable. Since installing ThermaDoor, it has become a comfortable, functional, and genuinely enjoyable environment. It has opened up a whole new level of independence and capacity building for my son and his team. The product itself looks premium, fits beautifully, and has made the space noticeably quieter as well , something I didn’t expect but absolutely love. Another positive for me is that the core product Is aesthetically pleasing with a beautiful vinyl panelling covering that finishes the door to a higher standard, Another 5 ⭐️ stand out of a quality solution. And then there is the service. Peter and Karen were nothing short of exceptional — knowledgeable, responsive, and genuinely invested in helping us achieve the best outcome for our son to make his space a home away from home! This has been one of the most impactful upgrades we’ve made to our home, and I know it will carry us just as beautifully through winter as it has through summer. I am so grateful, thank you for helping us create a space that truly supports my son’s world and capacity building Deb4Sammy Mountain Creek
Owner's reply
Deb, thank you, this means so much to us. We are genuinely honoured to have played a part in creating a space that works for your son and his support team. "The Cave" is exactly what a space like this should be... comfortable, functional, and truly his own. The fact that a 20°C temperature drop has opened up a whole new level of independence and capacity building is everything we could hope to hear. We are so glad they could be part of your family's story. Thank you for trusting us with it. Peter & Karen🙏Posted on Google 81micmicTrustindex verifies that the original source of the review is Google. Everything about ThermaDoor was fantastic. Easy online ordering, fast interstate delivery and DIY installation was straight forward and a breeze. I would recommend the business and the product.
Owner's reply
We believe happy customers are the best outcome we can achieve. Thank you for sharing your experience, we really appreciate you taking the time to let others know. Peter & KarenPosted on Google Paul BTrustindex verifies that the original source of the review is Google. Our garage was very hot and a suggestion from a friend meant that we contact Thermadoor. From the initial contact to the completion, the company was very professional. The product is very good and I would definitely get their team to install. Today Don arrived on time and got the job done very quickly. The addition of the door seals was a good decision as they remove any dust and breeze that used to come through the sides and top. The door closer mechanism was modified to close with the extra panels and it is much quieter. I would recommend this company for the great job at a very reasonable price.
Owner's reply
Thank you, Paul we are really glad Don could get the job done efficiently and that the whole experience from first contact through to installation met the mark. The door seals are an often underestimated part of the system. Once people experience the difference in dust, draughts, pests and noise they wonder how they managed without them. The spring and closer adjustment is something we always include as part of a professional install, so it's great to hear that came through in the result. Thanks again for the kind words and for the recommendation. Peter & Karen🙌Posted on Google Lorraine LTrustindex verifies that the original source of the review is Google. Short review: Garage temps have dropped 4c to 6c since installation and so glad we installed the ThermaDoor panels. Long review: We built a new house in 2023/2024 and the garage door gets full western sun every afternoon plus we also have side glass doors on the garage for side access so it also gets lots of sun and heat. I made sure to take note of our garage temps before installation and noticed immediately after installation the temp dropped 4c to 6c in summer and in winter its not as cold and I also noticed the noise is less, so straight away money well spent. The garage just feels more comfortable on very hot days and you really notice the difference when you open the garage door and walk out into the front yard. The install guys were really nice and local for us (Sydney) and after panel installation they also serviced our garage door to make sure everything was OK and I appreciated their extra care and clean up afterwards. Installation didnt take long and the garage door looks great, you wouldnt know it was there unless I pointed it out to you. Well worth the investment in insulating our garage door and Ive recommended them quite a few times since. Edit. We installed the Premium panels
Owner's reply
Thank you for your kind words Lorraine. We are so glad ThermaDoor Premium has made a difference in your circumstances!Posted on Google David DTrustindex verifies that the original source of the review is Google. Karen and the crew were fantastic to deal with from start to finish. The product is amazing and has decreased the temperature in our garage by 10-15 degrees C and also decreased the temp in our house. It was super easy to self instal. Massive thumbs up!
Owner's reply
Thanks so much for your review David. We’re so glad ThermaDoor Premium met your expectations!Posted on Google Paul VTrustindex verifies that the original source of the review is Google. Big thanks to Karen & the team, great people to deal with. Panels have been in over 2 years and work great. Huge reduction in heat within garage, great product.
Owner's reply
Thank you, Paul. Two years in and still working great is exactly what we build them for. Karen will love seeing this! 😊 Longevity is something we're proud of — the factory-laminated construction holds up to the daily movement and Australian conditions in a way that glued or retrofit solutions simply don't over time. Really appreciate you coming back to leave a review. Cheers Peter🙏Load moreGoogle rating score: 5.0 of 5, based on 52 reviewsVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Ready to transform your garage?
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!
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