How to Weatherize the Windows in Your Home

Maybe you live in a harsher climate where snow consistently covers the ground, or somewhere warm where the only semblance of cold is a slight chill in the air, you could even live in an arid, desert climate that experiences daily temperature fluctuations. Regardless, not properly maintaining your windows can be a real drag on your budget. This is especially true if your house has a lot of windows. Even if you have brand new windows, inadequate maintenance can account for over thirty percent of total internal air loss.

Fortunately, there are means of preventing such occurrences: sealing cracks around the windows in order to eliminate drafts, and insulating the glass with either permanent or removable surfaces. Here to expound on the specifics of either remedy is a brief list on how to weatherize the windows in your home.

Seal and Caulk

If you occasionally feel cold drafts throughout your home, it is likely that you are losing a significant amount of heat. Even worse, you could still be experiencing air leakage even if you do not feel a draft. Check around your window frames for loose glass, openings behind the window trim and finish, and inadequate caulking.

Properly caulked windows are the best means of avoiding air loss. If you do notice any of the problems listed above, you may need to seal the frame joints. This involves inserting insulation into any adjacent openings along the interior and sealing them with caulk. Externally, the caulk must be applied to the exterior trim.


Applying window film isn’t just a great way to block out the sun, though it can certainly do that too. What many people to do not realize is that window film can winterize your windows and maintain adequate temperature control on an annual basis. Glass panes inherently cause heat reduction, so applying window film absorbs and retains heat from the inside of your home, keeping it inside where it belongs. Conveniently, there are several types of films available for different styles of windows. If you are unsure what film would work best for your specific situation, contact a window replacement service to see if they can give you an idea. Some services, such as Renewal by Andersen window replacement, will even install the windows for you!

Weather Stripping

Weather stripping is available in an array of different materials, including felt, vinyl, and even metal. Which one you choose depends on what kind of aesthetic you are trying to achieve, your overall skill level when it comes to installation, and the environmental conditions surrounding your home. Vinyl is a bit difficult to install, but is fairly inexpensive. Felt can be installed quite easily but is far less durable and easily susceptible to moisture. Metals are great but may look out of place in newer, more modern homes. Though it is very well-suited for DIY installation, if you are not confident in your ability to install the stripping yourself, you can always contact a professional window replacement service to help you out.