How To Weather Proof Your Garage?

Winter months and cold weather can be tough on your garage, but it’s never too late to make repairs or precautions! From the garage seals to the windows and walls, every inch of your garage needs good protection and winterizing to keep it warm and clean.

Many would be surprised at how much warm air can escape when the temperature drops, so optimizing your garage doors, windows, and floor is essential to preventing damage. Regular garage door maintenance and attention are critical.

Here are the best steps to take to weatherproof your garage for when the temperature drops!

Replace Garage Insulation

A common mistake is forgetting to insulate your garage; however, having good insulation makes a big difference in containing warm air. Make sure to insulate all garage walls and the door, too, to keep it warm through the winter.

There are various ways to insulate your garage. One common method is to use fiberglass batt insulation. This is fairly inexpensive, but it does require skill to install and can be a messy process. When insulating the garage door, you need to find insulation that’s compatible with your model. Often the older wooden, aluminum, and metal doors aren’t conducive to installing insulation. Many new overhead doors feature integrated insulation, so a specialist opinion can help you find the best solution.

Seal Off Cracks And Holes

Cracks and holes can often allow warm air to escape your garage, or they could also be letting excess moisture in. These could be located anywhere in the garage or even on the garage door itself. If you have electrical outlets or dryer vents in your garage, check to see if these are allowing air to escape too.

If you have a few cracks and holes in your garage, don’t worry, these can be easily sealed with a caulking gun. When you’re investigating your garage, check the windows for cracks and breaks and get these replaced if needed. This will minimize heat loss and prevent any cold drafts in the winter.

Check Any Moving Parts

Most garage doors rely on metal components to operate, these can be affected by cold temperatures, so it’s essential to check on these garage parts through the winter. Cold temperature can cause metal garage parts to contact, and your garage door may perform poorly or not at all.

For example, garage door rollers can become brittle in the cold and crack, causing your garage door to grind to a halt. Make sure you dedicate some regular time to inspect the garage door parts. If anything looks broken or wrong, consult a garage door technician to repair the door before the colder months.

Install A Heater

A garage heater is a great way to keep your garage warmer in the winter months. Avoid purchasing a regular heater, as these can catch fire easier when chemicals are around. Look for an electric, forced-air heater that’s capable of heating a large garage space safely.

Weather Stripping

When it comes to general weatherproofing, you have a lot of options for your garage. Always make sure your garage doors are weather-stripped to keep any cold moisture out. This step is crucial if you have a bedroom over your garage; keeping the cold air out will keep the floors warmer.

Make sure you regularly check your weatherstripping seal. These take the brunt of the weather and can be worn down without maintenance and frequent checks. Any brittleness, cracks, or breaks can leave them ineffective and in need of a replacement. If the winter is especially cold, your weatherstripping can freeze to the ground and rip or tear from the garage door movement.

When maintaining your garage door seals, remove any snow or ice from the area. Any snow clinging to the garage door can interfere with the photoelectric eye and cause the door to come partially down and go up again without closing.

Specialists recommend a convex rubber food stripping on the bottom of the garage door. You can also use weather stripping around the outside of the food alongside a recommended wooden frame. If you have had weatherstripping applied previously, make sure to check it and see if it needs repairs or replacements.


Allowing moisture to escape properly is essential when weatherproofing your garage. To do so, you need to create ventilation in the cavity of your garage. Specialists recommend installing a wall vent on two sides of your garage; this will allow moisture to evaporate and the garage through passive wall vents.

Ventilation is a great way to keep the moisture out when you are heating your garage daily. Heat causes condensation, which turns into that unwanted moisture, and if left un-ventilated, it can have serious health effects on anyone that lives in the home.

Garage Cleaning

Though it’s no one’s favorite job, a good cleaning will help to weatherproof your garage. Make sure to remove all dirt, leaves, debris, and mulch that has been walked into the garage over summer and fall. It can be helpful to use a stiff broom in hard-to-reach places to get rid of clogged dirt. Make sure to also remove all cobwebs from walls and ceilings.

Call A Garage Door Technician

If you aren’t the best with DIY or have no clue about garage doors and seals, you can always call a garage door specialist or a garage technician. A professional can inspect your garage and provide a tailored solution to keep your garage healthy through the winter. Installation of any new garage door parts or insulation is always best done by a professional.

Remember, keeping your garage heated and well insulated through the lower temperatures will also protect your house!