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How To Insulate Garage Doors

Garage door

Garages used to have one purpose, which was to provide shelter for a vehicle or two. Many households in the UK still use their garages for this purpose, but homeowners are increasingly turning their garages into multi-use spaces. Using the garage space as a workshop, a games room, a gym or even just as storage space are all popular ways of making use of the extra room, but by spending more time in your garage you may come to realise just how thermally inefficient they can be.  Garage door insulation can be a big help when it comes to regulating the temperature inside – something which is difficult (not to mention expensive) when the only thing between you and the elements is a single-skin galvanised steel garage door. In the summer months, of course, you can often do what you need to with the door open, but when it comes to dark, rainy and cold weather, some extra protection is often needed.

Why Insulate My Garage Door?

Garage Energy Efficiency

Your garage, whether you spend a lot of time in there or not, may benefit from thermal insulation – especially if you store delicate things in the space, such as paperwork or sentimental items. Fluctuating extreme heat and cold can deteriorate many materials, and can even damage very old vehicles, such as classic cars or motorbikes. Reglating the temperature will protect your belongings and drastically reduce the chances of mould growing, yellowing paper and condensation damage.

If your garage is attached to your main property, or if there are rooms adjoining it, then an inefficient garage door could be causing you to spend more money on heating/cooling bills than you would usually. Rooms attached to uninsulated garages can be much colder in the winter and stifling in the summer as they become affected by the temperature of the garage itself. If you have no cavity wall insulation or garage door insulation included as part of the garage structure, then this can make the temperature fluctuations much worse. This not only costs you more money than you would usually pay, but it can also make your home uncomfortable – something which we all want to avoid.

Buying An Insulated Garage Door

SWS Roller Garage Door

Here at Evander, we’ve got a wide range of garage doors available, from galvanised steel ones to solid timber panels. Two types of doors we stock come insulated as standard – our entire sectional range and our full roller garage door range. These are constructed from a strong, insulating core which is sandwiched by steel or aluminium respectively. This method of garage door construction creates the perfect mix between strength, ease of use and thermal efficiency, making these doors popular with those who use their garage for hobbies or for storage.

DIY Garage Door Insulation


If you have a perfectly functional garage door at the moment, then you may feel that replacing it with an insulated one is an unnecessary expense. When it comes to energy efficiency, it’s always good to work with what you have rather than create demand for new materials, but in this instance it’s important to weight up the pros and cons. Installing garage door insulation yourself can be easy (you can buy garage door insulation ‘kits’ in many hardware stores and from a myriad of sites online), but it can also create complications, especially if you’re not well versed in how your garage door mechanism works.

Garage door insulation is meant for the inside of the door panel, but with many garage doors the opening mechanism parts will be exposed on the back of the panel. This could leave little room for insulation to be installed, or it could hinder your efforts. Damaging the opening mechanism on the back of the door could mean your guarantee no longer stands, or you could hurt yourself on the moving parts. Insulation board may also make your garage door a little heavier – something to consider if you or someone in your household already finds it difficult to use.