Garage Door Insulation FAQs
Check Out Our Garage Door Insulation FAQs - Learn About the Only Purpose Built Product on the Australian Market
1.Purchase & Installation Basics
1-1 How long does a typical install take?
A standard 4.8 m × 2.4 m sectional door with 16 panels usually takes 2–3 hours with basic hand tools. Most DIYers finish in an afternoon; our pro crews are even faster.
1-2 Do I need special tools or trade skills?
No. A Stanley knife, straight-edge, and cordless drill are all that’s required. Pre-cut foam packers and step-by-step video guides are included, so competent DIYers can achieve a neat, compliant finish without carpentry experience.
1-3 Will it overload my door or motor?
The Premium kit adds roughly 5-8 kg to a double door – well within the capacity of modern openers. After any added weight, springs should be re-balanced; our installers include this service, for DIYers we recommend you book a technician to do this part for you.
1-4 Can I retrofit ThermaDoor to an existing door?
Yes. Panels are made to slip inside the recesses of most popular sectional and tilt doors, so you can upgrade any time without replacing the door itself.
2. Technical & Compliance
2-1 Is ThermaDoor independently tested?
Absolutely. R-values of R1.48 (winter) and R1.43 (summer) were verified by an independent thermal engineer under AS/NZS 4859.1 & 2:2018, specifically modelled for garage-door use – not walls or floors.
2-2 Does it align with AS 3999 installation requirements?
AS 3999 relates to insulation installation in residential homes. While it doesn’t mention garage doors specifically, it is still relevant. Due to our extensive construction experience, our installation method aligns with this standard – mechanically fixed (not glued), air gap preserved and professional spring adjustment included for safety.
2-3 Can it help me hit the NCC 2022 7-Star NatHERS target?
Because the R-values are tested for a garage-door assembly, assessors can model them directly in NatHERS software, delivering a cost-effective star-rating boost (often under $1 k for a double door).
2-4 Why is the built-in air cavity important?
The cavity breaks direct contact with the steel skin, cutting conductive heat flow and preventing condensation – performance you lose with glued-in boards that don’t align with AS 3999. You can learn more about the air cavity and insulation here.
3. Thermal Performance & R Values
3-1 What R-value does ThermaDoor deliver?
Premium panels provide R1.48 (winter) / R1.43 (summer). These are the highest verified values for Australian garage doors. Higher quoted values are often related to walls or ceilings that are vastly different environments to the garage door. If you see higher R-values quoted, request the official test data specific to garage doors. If they can’t provide it, it’s not verified. Read more about garage door insulation R-value here.
3-2 How many degrees cooler/warmer will my garage feel?
Remember every garage is different. Homeowners typically report up to 20°C reduction in summer door-surface temperature, with similar gains against winter chill, depending on orientation and other factors.
3-3 Does it improve comfort in adjoining rooms?
Yes. By blocking the largest thin-steel surface in the envelope, ThermaDoor reduces heat bleed into bedrooms or living areas that share a common wall, supporting whole-home energy savings.
3-4 Will it also cut noise?
The 35 mm EPS core and vinyl face add mass and dampen panel vibration, noticeably reducing noise entering and leaving the garage, and making the door operate more quietly.
4. DIY vs Professional Intstall
4-1 Can I really do it myself?
4-2 What comes in a DIY kit?
Pre-laminated panels and foam packers is all that’s needed, except common hand tools. We have a full video library to step you through the process, or you can call us for assistance if you get stuck.
4-3 When should I choose pro installation?
Opt for our authorised network if you’re short on time, or you’re just not a DIY person.
5.Door Compatibility & Sizing
5-1 Will it fit my brand of sectional door?
Almost certainly. That’s why we have 11 different kit sizes to cover all major Australian brands and door heights.
5-2 What about tilt doors?
Premium panels are purpose-made for both sectional and tilt counter-weight doors.
5-3 Can I insulate my garage roller door?
An air gap is still critical for roller doors to achieve any R-value, so roller-door prototypes are in R&D. For now, ThermaDoor focuses on sectional and tilt styles. You can learn more about the air gap and insulation here.
5-4 How do I measure correctly?
Follow the 60-second “how to measure” video (height and width of one panel recess × number of panels). DIY can be purchased online. For supply & install, go to our supply & install form, send a clear photo and we’ll take care of the rest.
6. Maintenance, Cleaning & Durability
6-1 How do I clean the panels?
Simply wipe the vinyl face with a damp microfibre cloth and mild detergent—no painting, sealing or special cleaners required.
6-2 Are the panels pet and impact-resistant?
Yes. Our vinyl laminate face shrugs off scuffs, claws and the occasional cricket ball, keeping its bright white finish for years.
6-3 Will moisture or UV damage them?
The EPS core is closed cell so won’t absorb water. The foil back and vinyl face is moisture resistant. Together they resist water ingress, mould and sun-yellowing in Australian climates.
6-4 What if a panel gets damaged?
Our panels are not glued in. Individual panels can be swapped out – no need to replace the whole set. Replacement panels can be dispatched quickly.
7. Shipping, Delivery & Returns
7-1 Do you ship nationwide?
Yes. Kits are delivered to your door anywhere in Australia via insured courier.
7-2 How long does delivery take?
Metro east-coast deliveries average 3–5 business days; regional or WA/NT can take 7–10. Lead-times stretch in peak summer, so order early.
7-3 What if my order arrives damaged?
Accidents happen. Email photos within 7 days; we’ll lodge a freight claim and express ship replacements at no cost under our warranty terms.
8. Warranty & Product Support
8-1 What warranty is included?
• EPS core – for the lifetime of the original garage door
• Vinyl & foil laminates – 7 years against delamination or peeling
All rights under Australian Consumer Law apply in addition.
8-2 Is the warranty transferable if I sell my home?
No. Coverage applies to the original purchaser and installation address.
8-3 How do I get support or a quote?
Call 07 5452 4378, email info@thermadoor.com.au or use the quote form—attach a photo of the door back and your measurements for fastest turnaround.