The Benefits of an Insulated Garage Door

Garages these days are used for far more than just storing a car. Many people now use their garage space as a workshop, gym, storage space, or even as an additional recreation room, meaning the aesthetics and temperature of the garage is important. As the largest entrance into your home, it is common for garages to be one of the coldest areas of the house which in turn affects the temperature of the rest of the house as heat is lost.

Insulated garage doors are therefore, extremely useful for regulating the temperature of the entire home, especially when the garage is attached to the house via an internal door. We’ve outlined some of the benefits of an insulated garage door below.

Warmer garage

An insulated door prevents the outside weather getting into the garage. This is particularly important for those who use the garage as an additional room more than a storage space for cars. The additional heat saved from insulation means you and your family can be comfortable when spending any time in the garage – something that is not so easy with a standard garage door when the temperature drops in the winter months!

Prevents heat loss

Insulating the garage provides an additional barrier to weather extremes outside; a factor which is particularly important for homes that are actually attached to the garage. Without insulation, a lot of heat can be lost through the walls of the home into the garage, costing you more on the heating bill. Protecting the garage from the cold temperatures outdoors will make for a warmer home overall, saving you money.

Less noise

If you live on a busy road or have noisy neighbours, a lot of that sound is most likely travelling into the home via the thin garage door. An insulated garage door that is well sealed will block out the majority of outside noise, allowing you and your family to relax in peace.

Stronger door

Insulated doors are often double or even triple layered, as opposed to a standard one layer door. These added layers provide extra security as well as more warmth, giving a stronger barrier to protect against outside elements and any would-be burglars.

How does the insulation work?

Polystyrene or polyurethane will typically be used as insulating material for garage doors. Polystyrene is a block of insulation, whilst polyurethane is an injected foam material that bonds to the garage door itself. Polyurethane is considered a stronger and more rigid insulation material, adding more strength to the door. Polyurethane also delivers twice the thermal insulation properties (R-value) than polystyrene, but will be slightly more expensive as a result. The higher in R-value an insulating material is, generally the less expensive it will be to continue heating the garage.

The door’s construction is equally as important as the insulation itself. A door with loose seals and joints that allow air flow into the garage will not provide an efficiently insulated room. It’s important to make sure that the door’s weather stripping is intact, and any old joints are updated to ensure minimal airflow is allowed.


Here at Dimensions Garage Doors, we’ve been supplying quality garage doors throughout the North West for years. Our experts have a wealth of knowledge when it comes to the best door for your needs, whilst our huge range of door types is sure to have something that suits you.

Contact us today for more information, and we’ll be happy to help.