Australian-made garage door insulation panels designed to fit new and existing sectional and tilt garage doors across Coffs Harbour & Northern Rivers including Grafton, Lismore, Ballina and more.
SUNNY 28°C AUTUMN AFTERNOON
44.7°C uninsulated | 30.8°C with ThermaDoor installed
13.9°C COOLER DOOR SURFACE
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
Product Warranty
Core: life of door · Vinyl & Foil: 7 years
Designed for sectional and tilt garage doors in new builds, renovations and existing homes.
Include garage door insulation in a new build or renovation to support a more comfortable, energy-conscious home.
Purpose-made panels are sized and fitted to work with the movement and operation of sectional and tilt garage doors.
Choose a DIY garage door insulation kit or arrange professional supply and installation through our Coffs Harbour & Northern Rivers authorised distributor network.
Garage door insulation is a practical upgrade for Coffs Harbour and Northern Rivers homes. Warm, humid summers, strong coastal sun and high rainfall can place extra pressure on sun-exposed steel garage doors, while cooler winter mornings—particularly through the hinterland—can make garages uncomfortable. ThermaDoor provides a purpose-made thermal barrier for new and existing sectional and tilt garage doors, supporting a more stable, comfortable and usable garage throughout the year.
Want to insulate your Coffs Harbour & Norther Rivers garage door? You have two options — insulate your own garage with our DIY kit, or arrange supply and installation through an authorised Coffs Harbour & Norther Rivers distributor.
DO IT YOURSELF
Want to insulate your own garage in Coffs Harbour, Lismore, Byron Bay, Ballina or anywhere across the Northern Rivers? 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.
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
ThermaDoor is supplied and installed by authorised distributors across Coffs Harbour & Norther Rivers. Find your nearest distributor below.
ThermaDoor services Coffs Harbour and the Northern Rivers, with nearby NSW service areas including the Mid North Coast and New England & Snowy Mountains. For Sydney and Greater Metro installation options, visit our Sydney garage door insulation page, or view all NSW locations on our New South Wales garage door insulation page.
Looking for other areas? See our list of professional distributors Australia wide.
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.
QUEENSLAND HOMEOWNER CASE STUDY
44.7°C
DOOR SURFACE TEMPERATURE
Before ThermaDoor
28°C
OUTSIDE AIR TEMPERATURE
30.8°C
DOOR SURFACE WITH THERMADOOR
After ThermaDoor
From the humid coastal stretches of Coffs Harbour to the intense summer sun of the Tweed Valley, ThermaDoor dramatically reduces radiant heat transfer, keeping your garage significantly cooler during long, sticky summers.
The Northern Rivers is known for heavy seasonal rainfall and high humidity. ThermaDoor's laminated vinyl finish is water-resistant and won't absorb moisture, unlike open-cell foam or polyester batts that can sag, degrade, and hold dampness over time.
Inland areas like Lismore, Casino, and the hinterland experience sharp overnight temperature drops in winter. ThermaDoor slows heat loss overnight, so stepping into your garage on a winter morning is no longer a shock — and your stored gear stays protected 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 →
With a stable, comfortable temperature year-round, Coffs Harbour & Northern Rivers 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.
Our article on thermal bridging and garage doors explains why tested assembly values matter.
WOOLGOOLGA INSTALLATION
ThermaDoor Installed in Woolgoolga
A recent ThermaDoor garage door insulation installation completed by Woolgoolga Garage Door Centre on a local sectional garage door.
NEW SOUTH WALES CUSTOMER REVIEW
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.
Peter Harding shares his experience with ThermaDoor garage door insulation after having it installed three times over 12 years.
Coffs Harbour, Sawtell, Woolgoolga, Toormina, Moonee Beach, Coramba, Bellingen, Urunga, Nambucca Heads, Macksville.
Lismore, Ballina, Byron Bay, Tweed Heads, Casino, Kyogle, Murwillumbah, Kingscliff, Lennox Head, Alstonville, Mullumbimby, Ocean Shores.
DIY kits ship to all Coffs Harbour & Northern Rivers postcodes.
Also servicing Mid North Coast NSW
Use the calculator below to estimate the possible payback and long-term value of insulating a suitable Sydney 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 $330 inc. GST. Freight additional — calculated at checkout.
Your inputs
Yes. ThermaDoor DIY kits ship directly to any residential or commercial address across Coffs Harbour, Lismore, Ballina, Byron Bay, Tweed Heads and all surrounding Northern NSW postcodes. Delivery is handled via standard courier and most orders arrive within a few business days.
Yes. Professional installation is available through our network of authorised ThermaDoor distributors operating across Northern NSW. They can supply and install the panels directly into your existing garage door.
Absolutely. ThermaDoor panels feature a high-density EPS core backed by construction-grade sisalation foil, which acts as a Class 2 vapour barrier. The vinyl facing is water-resistant and won’t absorb moisture or humidity, making it ideal for the coastal Northern NSW climate.
ThermaDoor is designed to fit standard sectional and tilt garage doors from all major Australian manufacturers, including B&D, Steel-Line, Gliderol, Centurion, and Taurean.
Most homeowners can install a ThermaDoor DIY kit on a standard double garage door in 2 to 3 hours. The kit includes pre-cut panels, a specialised cutting tool, and comprehensive instructions.
Yes. ThermaDoor is independently tested to AS/NZS 4859.1 and AS/NZS 4859.2:2018. It is the only garage door insulation kit in Australia with verified dual-season assembly R-values of R1.43 (winter) and R1.39 (summer).
Need more details? See our full Garage Door Insulation FAQs for compliance, R-values and warranty.
BEFORE YOU BUY
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.
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!
Get exact DIY pricing online or find professional installation near you.
DIY kits ship Australia-wide · Professional installation available through authorised distributors
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.
Call or send an enquiry below to see if we have an installer in your area.
