DIY kits delivered anywhere in Newcastle & Hunter Valley
Professional installation via our authorised distributors.
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 a ThermaDoor DIY kit for delivery to Newcastle & the Hunter Valley, you are buying Australian made insulation from a business that has engineered its product specifically for the Australian climate — not an imported generic kit adapted for local conditions.
From the humid coastal days in Newcastle to the intense dry heat of the Hunter Valley, ThermaDoor dramatically reduces radiant heat transfer, keeping your garage significantly cooler in summer.
The Hunter Valley can swing 20°C or more between a summer morning and afternoon. An uninsulated garage door offers no resistance to that heat load — the space heats up fast and stays hot long after sunset. ThermaDoor's laminated vinyl finish is water resistant and impact resistant, unlike open-cell foam or polyester batts that absorb moisture and deteriorate over time.
Inland areas like Cessnock, Maitland and Singleton experience sharp overnight drops in winter, regularly falling to 2-5°C. ThermaDoor slows heat loss overnight, so stepping into your garage on a winter morning is no longer a shock — and your stored gear, tools, and vehicles stay protected from the cold year-round.
With a stable, comfortable temperature year-round, Newcastle & Hunter Valley 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:
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.
Want to insulate your Newcastle 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 Newcastle, Maitland, Cessnock, Lake Macquarie or anywhere across the Hunter Valley? 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.
Our DIY kits come with everything you need for a straightforward installation. Pricing is based on the number of panels required for your door, does not include freight.
| 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 |
WE DO IT FOR YOU
Rather let us insulate your garage for you? ThermaDoor is supplied and installed by authorised distributors across Newcastle & the Hunter. Find your nearest distributor below.
Looking for other areas? See our list of professional distributors Australia wide.
Newcastle, Merewether, Belmont, Warners Bay, Charlestown, Morisset, Gateshead, Barnsley, Cardiff, Swansea, Wallsend, Toronto, Kotara, Hamilton, Mayfield, Jesmond, Beresfield.
Maitland, Rutherford, Cessnock, Singleton, Kurri Kurri, Muswellbrook, Raymond Terrace, Pokolbin, Branxton, Lochinvar, East Maitland, Thornton.
DIY kits ship to all Newcastle and Hunter Valley 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 over 20,000 Australian homeowners choose the only purpose-built garage door insulation made in Australia.
⭐⭐⭐⭐⭐
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 install. Massive thumbs up!”
⭐⭐⭐⭐⭐
“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.”
⭐⭐⭐⭐⭐
“Garage temps have dropped 4–6°C since installation and so glad we installed the ThermaDoor panels. We built a new house in 2023/2024 and the garage door gets full western sun every afternoon. I made sure to take note of our garage temps before installation and noticed immediately after installation the temp dropped 4–6°C in summer and in winter it’s not as cold. I also noticed the noise is reduced.”
⭐⭐⭐⭐⭐
“Everything about ThermaDoor was fantastic. Easy online ordering, fast interstate delivery and DIY installation was straightforward and a breeze. I would recommend the business and the product.”
Ready to transform your garage?
Yes. ThermaDoor DIY kits ship directly to any residential or commercial address across Newcastle, Lake Macquarie, Maitland, Cessnock, Singleton and all surrounding Hunter Valley postcodes. Delivery is handled via standard courier and most orders arrive within a few business days.
Yes. ThermaDoor has authorised distributors servicing the Newcastle and Hunter Valley region, including Coast to Valley Garage Doors, Hunter Valley Garage Doors, Macquarie Garage Doors and Newcastle Garage Door Service. Contact your nearest distributor directly to arrange a quote.
Yes, and it is particularly effective here. The Hunter Valley experiences some of the most extreme temperature swings in NSW, with summer days regularly exceeding 40°C inland and sharp winter nights in areas like Cessnock and Singleton. ThermaDoor’s independently verified R-values mean genuine thermal resistance, not just a surface temperature reduction.
ThermaDoor panels are designed to fit the most common sectional and tilt door profiles used across Australia, including B&D, Gliderol, Steeline and CSI. Panels are cut to size based on your door’s measurements. Full measuring instructions are available on the website, and our team is happy to assist if you are unsure.
Most homeowners complete a standard 4-panel sectional door in 2 to 3 hours. No trades are required and no tools beyond a tape measure, utility knife and straight edge. Full step-by-step video guides are available on the ThermaDoor website.
Yes. ThermaDoor Premium is the only purpose-made garage door insulation in Australia with independently verified R-values tested under AS/NZS 4859.1/2:2018. The dual-season R-values are R1.43 (winter) and R1.39 (summer), verified by accredited Australian testing laboratories.
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.
