Garage Door Insulation Sunshine Coast
Australian-made garage door insulation panels designed to fit new and existing sectional and tilt garage doors across the Sunshine Coast.
SUNNY 28°C AUTUMN AFTERNOON
44.7°C uninsulated | 30.8°C with ThermaDoor installed
13.9°C COOLER DOOR SURFACE
The Sunshine Coast's Only Purpose-Made Garage Door Insulation
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
15 Year Warranty
Complete ThermaDoor Panel System
What Is Garage Door Insulation?
Fits New & Existing Garage Doors
Designed for sectional and tilt garage doors in new builds, renovations and existing homes.
Ideal for New Homes & Renovations
Include garage door insulation in a new build or renovation to support a more comfortable, energy-conscious home.
Fits New & Existing Garage Doors
Designed for sectional and tilt garage doors in new builds, renovations and existing homes.
Designed for Sectional & Tilt Doors
Purpose-made panels are sized and fitted to work with the movement and operation of sectional and tilt garage doors.
Garage Door Insulation on the Sunshine Coast:
Why It Matters
Garage door insulation is one of the most effective upgrades a Sunshine Coast homeowner can make. The Sunshine Coast’s warm, humid summers, strong afternoon sun and coastal conditions can turn a steel garage door into a major source of heat, making the garage and adjoining rooms less comfortable. During cooler winter mornings, garage door insulation also helps create a more stable and usable space. ThermaDoor provides a purpose-made thermal barrier for new and existing sectional and tilt garage doors, supporting year-round comfort in Sunshine Coast homes.
DIY or Professional Garage Door Insulation on the Sunshine Coast
Want to insulate your Sunshine Coast garage door? You have two options — insulate your own garage with our DIY kit, or let us insulate your garage through our professional Sunshine Coast installation team. Same product, same quality, same result.
WE DO IT FOR YOU
Professional Installation on the Sunshine Coast
Prefer to leave it to the experts? Our professional installation teams service the Sunshine Coast, Brisbane and Gold Coast. We measure, cut, and fit for your sectional and tilt door – you just enjoy the result.
How supply & install is priced: The kit cost is generally the same as our DIY kit pricing — installation is charged additionally depending on travel time and the complexity of your door. Contact us for a fixed price specific to your door.
Not in these areas? See our list of professional distributors Australia wide.
DO IT YOURSELF
DIY Garage Door Insulation Kit
Sunshine Coast
Want to insulate your own garage on the Sunshine Coast or surrounds? Everything you need is in the kit — purpose-built EPS panels, reflective foil backing, and a step-by-step guide. No special tools, no trades required. Most Sunshine Coast homeowners complete the job in a few hours.
Not sure if garage door insulation is right for you? Read why garage door insulation is worth it in Australia.
DIY Kit Pricing Guide
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.
What Makes ThermaDoor Garage Door Insulation Different?
High-Density EPS Core
35mm EPS core provides the primary thermal resistance in the ThermaDoor composite panel.
READ TECHNICAL DETAIL
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. As the primary insulator in the composite system, it works with the laminated Sisalation foil backing and engineered air cavity to deliver the verified installed-assembly R-value.
Sisalation Foil Backing
Laminated Sisalation foil reflects radiant heat across ThermaDoor’s engineered internal air cavity.
READ TECHNICAL DETAIL
Laminated to the rear of each panel, construction-grade Sisalation foil forms the reflective layer in the ThermaDoor composite system. Its low-emissivity surface works across the engineered internal air cavity, maintained by purpose-made foam packers. The foil also functions as a Class 2 vapour barrier and achieves Group 1 fire performance classification — it’s the same foil used to wrap Australian homes.
UV-Stable Vinyl Facing
UV-stable laminated vinyl facing helps protect the EPS core and lamination bond, maintaining a clean, durable interior finish.
READ TECHNICAL DETAIL
The composite system only performs if the materials stay intact. This durable, flame retardant, 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.
For more information read our blog: Not All Garage Door Insulation Is Equal – Here Is What Composite Technology Does That Others Cannot
A Real Queensland Home. A Real Result.
On a sunny 28°C autumn afternoon in Mountain Creek, Queensland, Deborah’s west-facing garage door measured 44.7°C before ThermaDoor. With ThermaDoor installed, the same door measured 30.8°C — a 13.9°C cooler door surface.
For Deborah’s family, the difference transformed the garage into a more comfortable and usable space.
Learn how ThermaDoor’s insulated garage door panels work — and why the R-value difference matters.
44.7°C
DOOR SURFACE TEMPERATURE
28°C
OUTSIDE AIR TEMPERATURE
30.8°C
DOOR SURFACE WITH THERMADOOR INSTALLED
Built for the Sunshine Coast's Climate
Summer Heat & Humidity
Sunshine Coast heat and humidity can turn a sun-exposed steel garage door into a major source of garage heat.
HOW THERMADOOR HELPS
During the Sunshine Coast’s hotter months, sun-exposed steel garage doors can absorb and transfer heat into the garage. ThermaDoor’s 35mm EPS core, laminated Sisalation foil backing and engineered internal air cavity work together to reduce conducted and radiant heat transfer through the door. This supports a more stable, comfortable garage and can help reduce heat transfer to adjoining living areas.
Storm Season Protection
Sunshine Coast storm-season weather calls for a durable, purpose-built garage door insulation system.
HOW THERMADOOR HELPS
Sunshine Coast storm seasons can bring heavy rain, wind-driven weather and rapidly changing conditions. ThermaDoor combines a UV-stable laminated vinyl facing, 35mm EPS core and laminated Sisalation foil backing in one complete composite system. The foil layer provides a Class 2 vapour barrier, while the laminated construction supports the system’s performance and clean finished appearance over time.
Cool Winter Mornings
ThermaDoor helps slow heat loss overnight, supporting a more comfortable garage on cool Sunshine Coast mornings.
HOW THERMADOOR HELPS
Although the Sunshine Coast is subtropical, cooler winter mornings are common, particularly through hinterland areas. ThermaDoor’s 35mm EPS core helps slow conducted heat transfer through the garage door, while the laminated Sisalation foil backing and engineered air cavity contribute to the complete assembly’s thermal performance. Together, the system supports a more stable, comfortable garage through cooler morning conditions.
Home Energy Rating Support
Independently calculated assembly R-values for energy assessment review
HOW THERMADOOR HELPS
ThermaDoor provides independently calculated garage door assembly R-values and supporting documentation for builders, homeowners and energy assessors to review within the full building design. Where a garage is attached to, below or beside living areas, its door may be relevant to comfort and heat transfer. NatHERS, BASIX, BESS and other rating outcomes depend on the complete building design and assessment method.
Read more about why winter is one of the strongest arguments for garage door insulation →
Make Your Sunshine Coast Garage More Usable All Year Round
What Changes When You Insulate Your Garage Door
- Customers report up to a 20°C reduction in garage temperature (results vary depending on garage orientation and other factors)
- Noticeably reduces street noise and the sound of the door operating, particularly in garages connected directly to living areas
- The durable white vinyl laminate finish instantly brightens your garage and is easy to wipe clean
With a stable, comfortable temperature year-round, Sunshine Coast homeowners are reclaiming their garages as usable living spaces.
Here is how ThermaDoor changes what you can do with your garage.
Home Gyms
Train comfortably year-round — no more sweltering summers or chilly winters.
Home Offices
Quieter, more stable temperatures for better focus and lower energy bills.
Man Caves
A retreat that stays cool in summer and warm in winter for real downtime.
Hobby Studios
Consistent conditions that protect materials and make projects more enjoyable.
Playrooms
A safer, more comfortable space for children’s play – fewer drafts and hot/cold spots.
Pet Rooms
A calmer climate for pets, reducing heat stress in summer and chills in winter.
Garage Door Insulation and Home Energy Rating
Our article on thermal bridging and garage doors explains why tested assembly values matter.
What Sunshine Coast Customers are Saying About ThermaDoor
Real results for real Sunshine Coast homeowners
Christina J
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.
Peta W
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
Justin H
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 from Hervey Bay shares his experience with ThermaDoor garage door insulation after having it installed three times over 12 years.
Garage Door Insulation Across Sunshine Coast and Beyond
Southern Sunshine Coast
Caloundra, Kawana Waters, Bokarina, Birtinya, Sippy Downs, Mooloolaba, Maroochydore, Buderim and surrounding suburbs.
Northern Sunshine Coast & Hinterland
Noosa Heads, Noosaville, Tewantin, Cooroy, Eumundi, Nambour, Bli Bli, Yandina and surrounding suburbs.
No matter your location, you will be looked after by a local expert who understands the specific needs of Sunshine Coast homes.
Don’t see your suburb? We service the entire Sunshine Coast region — contact us to confirm.
Looking for installation outside the Sunshine Coast? See our Gold Coast and Brisbane teams.
Custom Garage Door Insulation Solutions
Have a custom or specialty garage door? We’ve got you covered. Whether it’s a tilt door, RV garage door, airplane hangar door or even acrylic panel doors, ThermaDoor can provide the right insulation solution.
We specialise in tailored garage door insulation for non-standard and oversized openings. Contact us today to discuss your unique door and get expert advice on the best insulation fit.
ThermaDoor Garage Door Insulation ROI Calculator
Use the calculator below to estimate the possible payback and long-term value of insulating a suitable Sunshine Coast garage door with ThermaDoor.
These estimates apply to ThermaDoor only and cannot be assumed for other products used as garage door insulation.
Step 1: Where are you located?
Your climate affects how much thermal load your garage door creates and how much insulation can help.
Step 2: What size is your garage door?
Larger doors have more surface area, so insulation has a greater impact on thermal load.
Step 3: Tell us about your home
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
Frequently Asked Questions - Garage Door Insulation Sunshine Coast
How much does garage door insulation cost
DIY kit pricing is shown in the pricing guide on this page. For supply and install, the kit cost is the same as the DIY price with installation charged additionally depending on travel and complexity — contact us for a fixed quote.
Why is garage door insulation important on the Sunshine Coast
The Sunshine Coast experiences high humidity, salty air, and hot summers that can turn garages into ovens. Insulating your garage door with ThermaDoor helps block radiant heat, reduces temperature fluctuations and helps keep adjoining rooms more comfortable – especially during Queensland’s sweltering days.
Can I DIY, or do I need a pro - and how long does it take?
A confident DIYer can finish a double sectional door in about 3 hours using ThermaDoor’s pre-cut kit. Prefer a pro job? Our authorised garage door pros supply, fit and spring balance in around 2 hours – depending on the job.
Will ThermaDoor insulation hold up in coastal conditions of the Sunshine Coast?
Yes. ThermaDoor is purpose built for Australian homes and performs exceptionally well in coastal climates. The durable vinyl laminated surface resists moisture and salt air and provides further protection to the construction grade EPS core – it won’t degrade or become waterlogged over time due to humid environments.
Is ThermaDoor made in Australia?
Yes — ThermaDoor is proudly Australian made garage door insulation. Our business is headquartered on the Sunshine Coast at Chevallum, Queensland, and every ThermaDoor panel is manufactured in Australia to our own registered design — protected under the Designs Act 2003 (Cth). ThermaDoor is the only purpose-made garage door insulation designed and produced in Australia — not a repurposed wall or ceiling product adapted for garage doors. When you buy ThermaDoor garage door insulation on the Sunshine Coast, you’re supporting a local business and getting a product built specifically for Australian conditions, Australian door sizes, and Australian building standards.
What garage door types does ThermaDoor fit — sectional and tilt?
Yes — ThermaDoor is designed to fit both sectional garage doors and tilt garage doors. Each panel is custom-cut to suit the specific dimensions of your door, whether it’s a single or double door, sectional panel or tilt slab. The mechanical fixing system — no glue, no adhesive tape — works with both door types and is designed to stay securely in place as the door operates over thousands of cycles. If you’re unsure which door type you have or how many panels you need, our team can help you measure up before you order. Use our online measurement guide or contact us directly for advice specific to your Sunshine Coast home.
Need more details? See our full Garage Door Insulation FAQs for compliance, R-values and warranty.
BEFORE YOU BUY
Don't Buy Garage Door Insulation Until You Read This
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.
- Whether the supplier publishes an R-value at all — not providing one removes the consumer's right to compare products on equal terms
- Whether the R-value applies to a real installed garage door — not a raw material or wall insulation figure
- Whether the system accounts for both summer and winter performance, not just one direction
- Whether an air cavity is maintained so the insulation can actually do its job
- Whether the fixing method preserves door movement and does not compromise spring balance or safety
- Whether the supplier can provide compliance documentation if you are building, renovating, or need it for an energy assessment
Our Videos
Videos & Guides
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!
How to measure your ThermaDoor Garage Door Insulation panels
How to cut your ThermaDoor Garage Door Insulation panels
How to determine ThermaDoor Foam packers required
How to fit your ThermaDoor Garage Door Insulation panels
Tools Required for Installing ThermaDoor Garage Door Insulation
ThermaDoor Time Lapse Installation
Ready to Get Started on the Sunshine Coast?
Choose a DIY kit with exact online pricing, or request professional installation from the ThermaDoor team.