Garage Door Insulation Kit (Custom Cut)

The QTY button above is based on 1 set of panels for a standard Double Garage Door up to 2.4 mtrs high, up to 11sqm in panel area, and a maximum of 4 different panel sizes.


1 single garage door up to 2.4 mtrs high, up to 10 panels in total covering 5.5sqm in area, and a maximum of 4 different sizes.

If your custom requirements are outside these specifications, please call or email us with your panel measurements and we will reply with our quote.

Transform your Hot & Cold, Noisy Garage into a Comfortable, Quiet, Living & Working Space.

Thermal Insulation using Foam Sales' polystyrene insulation panels on the inside of sectional garage doors makes a considerable difference to moderating the summer heat and winter cold in your garage. During the Australian summer months in particular, metal garage doors can radiate large amounts of heat, making your garage area impractical for use as a workshop, exercise, or living area, or even for storage of precious items. Our Polystyrene Garage Door Insulation Kit reflects these extreme temperatures, making the inside environment more temperate in what is often the least-insulated room in the average Australian home. 

Acoustics inside the garage area are also improved by the sound absorbing characteristics of the polystyrene panels that will moderate reverberation and harshness of sound caused by the hard surfaces typical in most garages. This can be good, both for those living inside the house, and for the neighbours too! Door and motor operation will sound quieter as well.

In addition to improved comfort, the more moderate temperatures inside an insulated garage result in less condensation - so less damp and mould, and reduced rusting of the mechanisms caused during periods / nights of extreme cold and wet weather. Most homeowners are likely to experience lower ongoing energy costs as a result.

Garage Door panel sizes do vary considerably, so be sure to take accurate measurements on the size of each of your door sections.  We will custom-cut to the width, height and thickness you require for each of your door panels. Enter all your panel sizes above when placing your order. (Please commonise dimensions that are +/- 2mm.)

When fitting the panels, slide the polystyrene boards into / behind the top and bottom flanges. See Dave's Video on how to take correct measurements, and how to fit your new panels. The horizontal stabilising bars may need to be removed in order to insert the panels. Otherwise no tools are required for fitting of the panels, which is usually done in less than one hour. (A pair of cotton or rubber gloves can assist with handling and fitting of the panels.)

The firm polystyrene surface finish on the garage door panels does not need to be covered, and many customers appreciate the benefit of the extra light that is reflected from the white panels. The panels can be painted with water based paints and varnishes if preferred. (Take care - oils, and some silicone sprays will eat into the panels).

For an example of thermal rating, if you were to use polystyrene panels 40mm thick, they will have an R1.1 thermal resistance rating. The Panels are made from firm M grade polystyrene with thermal conductivity of 0.035W/m.°K. The door system value with the panels fitted has a higher R value due to the characteristic of the steel door panels to radiate heat and cold (emissivity) - in this case forced to radiate outside due to the high thermal resistance of the polystyrene panels. This thermal performance is typically stable over decades after installation.

Foam Sales' Garage Door Insulation Panels have a 10 Year Warranty.

Adhesive is not normally required for fixing the panels, but if you do want to use it we recommend a flexible long-life MS Polymer such as Soudal T-Rex or Rite Power-X. These products can also be used to fill and seal gaps at the edges. (Do not use solvent-based adhesives, or oil-based products on these panels.)

A standard set of double garage door panels (usually 16 panels)* will weigh 7kg on average. On doors with balanced spring tension this usually is not enough weight to affect your motor or door operation, or to require adjustments to spring tension. #See comments below regarding door servicing. 

* A set of panels for non-standard height doors up to 3m and beyond will weigh more than 7kg, and will incur an additional cost accordingly.

All polystyrene sheet made in Australia, including these panels, contains fire retardant. The effect of this additive is that in the case of exposure to small flame sources the panels will self-extinguish when the flame source is removed. See test results and flammability comparisons with other building products. 

Customer Testimonials witness to recorded temperature decreases of 10°C and more in their garage on hot summer days, and moderated winter temperatures, with improved acoustics too. Check our Customer Reviews here below.

Shipping Information Please allow 3 weeks lead time for Eastern States orders, and 2 weeks for orders delivered within WA.

Pickups Lead time for pickups from our Booragoon store in WA is also 2 weeks.

#Garage Door Servicing. On behalf of our Customers, and as of mid 2020, Foam Sales is seeking reputable garage door service personnel in all States. Please apply, or let us know if you have a recommendation. See the beginnings of our List as at September 2020.

Need Help?

CALL US: 08 6214 0419

Customer Reviews

Based on 144 reviews

Very Quick Service.... Great Product & the heat from the Garage is definitely more comfortable to work in... Great recommendation from Greg about size of foam blocks ..Thankyou

Fast delivery and easy to fit - seem good so far - could be a little bit cheaper

The panels arrived much quicker than the 3 weeks I thought likely and were perfectly cut. Due to the size limitations we had to order some that were slightly bigger than we needed, but they were easy to trim down with a sharp carving knife. My husband had measured perfectly and they all slide into place easily, and have not caused any problems with the motor opener. We live on the Sunshine Coast so have hot summers. We use our garage to park my car and our caravan and its the walk through to our laundry. Provided I haven't used my car I am sure the heat is less now with the foam inserts, but if we have run our car and park it in the garage the heat from the engine does seem to stay around longer (because the panels are keeping the heat in) but this is OK - I am sure when winter comes the cold days in the garage will be warmer. Overall I am very happy - my husband didn't think we needed them in the first place but I thought it was worth trying them out for a year or two.

Hello Ann, Thank you for your kind and thoughtful Review. We hope, and expect, that you will get many years of good sevice from your new door panels. SB

Worked a Specified

All went well just have to be careful with the measurements and read the documentation. I think it should be cheaper though

Hi John,
thanks for your review. Very happy to hear it worked just as we specified and all went well.
You are right about being careful with the measurements. Remember the old saying - Measure twice, cut once. GH


After looking at various options for the garage door, I eventually opted for Foam Sales panels. Compared to others, they were very price competitive, super easy to install (took me 20 minutes) and best of all they make the garage look more like a room, added light, reduced door and outside noise and the inside temperature is at an acceptable level. I have since recommended this solution to a friend and both my boys for their own garage doors.

Hi Jon,
thank you for your very kind review. It's great to hear that our product has had such a positive impact. Enjoy the change.

Great service

Ordered a garage door insulation kit and was contacted to say that shipping may take a while due to Xmas and Covid and me being on the other side of the country. To my shock and surprise the kit turned up not even a week later. Cut to size perfectly I was Very happy and would definitely recommend.

Hi Nathan, a good Christmas surprise. We expect that you will receive many years of good service from the panels into the future as well. SB