When fall temperatures start to dip, it’s a sure sign winter is right around the corner. And in Illinois, we know what that means: freezing winds, heavy snow, and heating systems working overtime. If your windows aren’t properly insulated, you could be losing warmth (and money) all season long.
At Rusco Windows & Doors, we’ve been helping homeowners prepare for harsh winters for more than 85 years. Here’s how you can insulate your windows now to keep your home warm and energy bills lower when the cold weather arrives.
1. Inspect for Drafts
Start by checking for gaps around the window frame. On a cool day, run your hand along the edges to feel for air leaks. Even small gaps can let in a surprising amount of cold air. If you notice drafts, it’s time to address them before temperatures drop further.
2. Apply Weatherstripping
Weatherstripping is an easy, affordable way to seal gaps and stop drafts. Adhesive-backed foam, V-strip, and rubber gaskets can be applied along the sash and frame to create a tighter seal. Make sure you choose the right type for your window style, and replace any worn or cracked strips from previous seasons.
3. Use Caulk for Permanent Gaps
For cracks or openings that won’t be opened again (like along the exterior trim), use a high-quality caulk to seal the gap. Exterior-grade silicone caulk holds up against moisture and temperature changes, creating a long-lasting barrier against cold air and water infiltration.
4. Consider Window Insulation Film
Clear window insulation film can add an extra layer of protection for older or less efficient windows. It’s applied over the interior surface and shrinks tight with a hair dryer, creating a barrier that reduces heat loss without blocking your view.
5. Upgrade to Energy-Efficient Windows
If your windows are more than 15–20 years old, they may be beyond simple fixes. Energy-efficient windows with double or triple glazing, Low-E coatings, and insulating gas fills can drastically improve comfort and lower heating costs. At Rusco, we offer custom-fit replacements that combine durability, style, and exceptional insulation.
Get Winter-Ready with Rusco
The earlier you prepare your windows for winter, the more comfortable your home will be, and the more you’ll save on heating. Whether you need simple weatherproofing advice or a full window upgrade, Rusco Windows & Doors is here to help.
Contact us today to schedule a consultation and keep the cold where it belongs: outside.