Insulated vs Non-Insulated Garage Doors: Which Is Better?

June 17, 2025

Your garage door does much more than open and close – it is one of the largest barriers between your house and the outside elements. With the Phoenix heat, having non-insulated doors may render your garage useless in the warmer weather. An insulated garage door is necessary in areas with severe weather (hello, Phoenix!).

Insulated vs Non-Insulated: What is the Difference?

It all boils down to construction. Non-insulated garage doors usually contain one layer of aluminum or steel and hardly protect from heat, cold, or noise. They might work in mild weather, but severe weather can make your garage feel like an oven in summer. Conversely, insulated garage doors have many layers of insulation that are longer-lasting, efficient, and quiet.

Why You Should Choose Insulated Garage Doors

Garage doors are more than looks (although an upgraded one adds curb appeal). Here’s why an insulated garage door can improve your home:

Beat the Heat and Stay Comfortable

Have you entered your garage during the summer and felt like you were in a sauna? An insulated garage door can keep your space 10-20 degrees cooler! You can enjoy your garage all year long from storing belongings to using the area as a workshop.

Save on Energy Bills

An insulated garage door keeps inside temperatures down and lowers dependence on your HVAC system. With lowered HVAC use, you can expect a reduced energy bill.

Make sure to check the R-value of the door. A greater R-values mean better insulation and energy efficiency.

Enjoy a Quieter Home

Nobody likes a raucous garage door that wakes up the whole neighborhood. Insulated doors dampen vibrations and reduce noise.

Garage doors also have an STC (Sound Transmission Class) score. The higher the STC, the less noise comes through. An insulated garage door blocks out street noise, barking dogs, and the sound of the door.

Built to Last

Insulated garage doors are stronger than non-insulated garage doors. The additional layers resist dents, rust, and moisture damage. Plus, better construction usually means much better tracks and springs that last longer on your door.

Insulation Types: Polystyrene vs. Polyurethane

All insulation is not created equally. So here is what you need to know:

  • Polystyrene: This is an economical option that provides moderate insulation and limits heat transfer.
  • Polyurethane: This higher-density foam bonds to the door for better energy efficiency, noise reduction, and durability.

Upgrade to an Insulated Garage Door – It’s Worth It!

If you happen to be replacing your garage door, consider getting an insulated model. You will get a far more comfortable garage area, reduced utility prices, and a quieter house – all while prolonging the lifetime of your door.

Are you looking at new garage doors? Call (623) 469-2727 to find out which insulated garage door is right for your house!