Draft Prevention for Your Doors & Windows

Draft Prevention for Your Doors & Windows

This fall it’s ok to feel a crisp in the air but not ok when that cooler air leaks into your home! Here are some simple things you can do to draft-proof your windows and doors this season.


Weatherstripping is an easy DIY way to lower your heating bill and prevent air leaks in the small gaps between your door and the doorframe. You can test the draftiness of your door by using a fan or hair dryer to create wind, then seeing if any leaks to the other side. If you feel a breeze, you may need to look into weatherstripping.

This guide can help you to pick out the perfect type depending on where you need insulation most. The cost of self-sticking weather strips are usually inexpensive, but they only last a few years, after which they’ll need to be replaced. Other types of weatherstripping include reinforced foam, which is a bit more difficult to install but is more durable. Magnetic weatherstripping is more expensive but one of the most effective types. Whatever material you choose, weatherstrips will help to decrease draftiness, as well as your heating and cooling bills.

Door Sweeps

Door sweeps are the panels on the bottom of your door that help to eliminate the gap between the bottom of your door and the floor. Over time they can get worn out and cracked.

The most popular type of door sweeps is the metal strip, which can be screwed onto the bottom of your door. It should extend a bit below the bottom of the door to create an airtight seal when your door shuts.

Instructions to install your own door sweep can be found on Lowe’s website, along with a brief guide on which type of door sweep you should get depending on your door. Even if you install a door sweep, it does no good when your door is open. Make sure your door creates a tight seal and isn’t warped or damaged by insects or the weather.

Window Caulk

Drafts coming from the window trim and between the trim and the frame are best solved by using window caulk. Make sure to clean your window first then using a caulk gun, apply caulk between the window and the wall.


Curtains, Snakes and Shades

These options don’t fix any draft issue with your windows or doors but rather uses a covering to block the drafts. Closed curtains not only help block the draft but they also block out natural light, a drawback for this option.

Alternatively, a snake, which is essentially a stuffed tube of fabric, helps block air from entering at the windowsill and allows light to still permeate the room.


One of the most sure-fire ways to keep your heating and AC bill down, and protect your home from becoming drafty is to add more insulation. Some places to pay attention to in particular are the attic, the basement, and even your water heater. If your basement floors seem cold, or your attic feels a little drafty, this may mean you need some new insulation.  Find the best insulation for each area of your home on our blog.

Prevent Door & Window Drafts Today

If you have drafty doors and windows it might be a great time to conduct a full-home energy audit. Ill-fitting or damaged doors and windows are a huge source of energy loss and a huge reason for high energy bills. Let a Thompson Creek professional help you fix your draft problem with replacement windows and doors. Call us today for a free estimate.

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