If your garage is attached to your home, poor insulation may lead to significant thermal fluctuations inside the house.

An insulated garage door has two layers of steel with a polystyrene foam insulator in the middle. There are certain pros and cons to be aware of if your house has an attached garage - most importantly wasting energy or heat.

Indoor heating and cooling conditions are known to be adversely affected by an attached garage.

Insulated garage doors act as thermal guards and withstand punishment and dents. The biggest downside of insulated garage doors is the high buying and installation cost.

A non-insulated garage door is suitable for climate conditions where weather is not extremely hot or cold.

Do insulated garage doors really make a difference?

Increased energy cost is obvious where the home shares a wall with the garage.

  • An insulated garage door keeps the garage and interiors warmer in cold temperature and cooler in hot weather.

  • If you have installed HVAC system, it will work less to maintain indoor room temperature.

  • If the garage is used regularly for additional home activities like serving as an extra room, a home office, a gym or leisure, insulating the doors is worth it.

  • A garage isn't just for cars. They are convenient to store family equipment like bicycles, gardening tools, sports gear and car accessories. If the doors are not well reinforced, they can be easy entry points for burglars. Insulated garage doors overcome this weakness found in non insulated doors.

Cost of an insulated garage door

The cost of insulated doors is higher than that of a non-insulated garage doors. A range of contributing costs are below.

Materials used

The material used for construction of the exterior layer can be steel, wood, aluminium or vinyl. Type and quality of insulation foam and reflective foils adds to the price.

Size of door

The length, width and thickness of the garage door are all critical aspects. In particular, the thickness is a key determinant of the garage door price. The higher the r-value, the thicker is the door, the better the insulation and efficiency capabilities.

Type of door

Garage doors operate as sectional overhead doors, tilt type or roller shutter doors. The cost of making each type is different.

If you require extra functionality like automation and remote controllers, the cost rises by between $740 and $965, depending on the type of door.

Installation rates

Hiring professionals to install the garage doors generally has an hourly rate of between $40 and $70.

Do you need to insulate the entire garage?

The interior design of a garage is not optimal for living in. Garages normally have gaps and spaces that cause heat loss or allow cold air to enter. Garage floors and walls have a lot of heat transference. Consider insulating the garage ceiling first as doing so will prevent loss of energy to the upper space or the attic. It is a great idea to insulate the walls shared with the house to improve the thermal resistance by the garage door. Another technique is that of using low expanding spray foam. Spraying it into wall spaces and gaps to seal them will stop air from entering.