Weatherproofing Windows: How do you do it?

Oct 11 2019 Posted By Ontario Window Reviews

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How to Weatherproof Your Windows

As we slowly make the transition into fall, you might want to start preparing for the colder weather that’s heading our way. Canada is notorious for our winters, but we don’t want our homes to have to suffer because of them! We have compiled a list of tips you can use for weatherproofing windows for this upcoming fall and winter to keep your home nice and toasty—as it should be!

Importance of weatherproofing windows and doors

Drafty windows and doors are always problematic even if it is mild weather. Weatherproofing it properly can minimize energy bill and also keep cold air out. This is an effective method for home improvement where the highest priority is given for all over happiness and health of the occupants. In a  home, energy loss and air leaks should be continually evaluated. Make sure that you seal windows to prevent moist cold air from entering inside.  

Signs your home needs weatherproofing

  • Drafts around your windows and doors
  • Small cracks in the door frame and window frames.

Girl sitting next to a properly weatherproofed window reading


This is an incredibly inexpensive way to seal any drafty doors or windows that may be causing you issues. Weatherstripping materials can be used around door frames. This comes usually in a roll with an insulating and adhesive side. It is good to place the material all around the door frame and not just on the side where the draft is found. Weatherstripping seals any gaps that may be between the sashes and the window frames. There are a variety of types of weatherstrips that you can use to do so, including nail-on tubular gaskets, spring bronze, v-strips, and more. Each kind is suited to a different type of window frames and the severity of the gap.

Window Film

Window laminate film adds another layer of insulation to any type of glass windows and doors in your home. There are a few straightforward steps that you can follow. The first step is to cut the window laminate film to the size of your existing windows. Then, you will want to mix together soap and water into a spray bottle, spraying the glass surface with the solution. Next, apply the cut film to the glass and use a hard, flat edge—like a credit card—to smooth out any ripples or bubbles.

Draft snakes

Draft snakes are a type of pillow that is used to block the cold air from seeping in through the bottom of the doors. This door snake is budget friendly long thin pillows that can be easily made or bought.

Insulated Curtains

Hang insulated curtains to keep out the cold air during winter. These heavy drapes are lined in order to prevent air from exiting your home through your windows, which we all know if a massive source for the heat exchange you may be experiencing. This way, you will be able to regulate the temperature in your home and retain heat without having to overwork your heating unit. This will definitely reflect nicely on your energy bill preventing energy loss.

Close up of white insulated curtains in front of a glass door


Re-caulking is not only a great option for weatherproofing windows, but it can also be beneficial when weatherizing your front and exterior door. Over time, the caulking surrounding your windows will peel or wear away. Filling in empty spots and problem areas each fall will help to seal your windows against any potential window drafts. Caulking can help improve airtightness. You can seal the gaps using a combination of backer rod and caulking if you are unable to remove the windows and doors trims. Install a door sweep at the bottom of the door. Caulking should be done wherever the seal is found to be missing. Additionally, it is fairly easy to do yourself!

Rigid Foam Insulation & Foil Stripping

To insulate windows using rigid foam and foil stripping, there are some steps you will want to follow. The first is to use a hammer to remove moulding from around your window. Next, cut your foam to the right size to fit between the window jamb and wall. After spraying foam sealant into the empty space, insert the foam and cover it using adhesive-backed foil tape. Finally, replace the moulding around the window and—voilà! You are done!

Sometimes weatherproofing windows will only do so much to help improve your home’s energy efficiency. If your windows are outdated or beyond repair, it might be worth it to invest in windows that are high-quality and energy-efficient! Luckily for you, we have an extensive list of Ontario window companies that can help you.

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