An Illinois winter finds every weakness in your home's envelope. If certain rooms never warm up, or the furnace runs constantly, drafty windows are usually part of the story. Here is how to fight back — starting with the cheap fixes and ending with the permanent one.
Find the leaks first
On a cold, breezy day, slowly move the back of your hand around the edges of each window. Where you feel moving air, you are losing heat. A lit incense stick works too — the smoke pulls toward a leak.
The low-cost stopgaps
- Weatherstripping — replace worn strips around operable sashes
- Caulk — seal gaps where the frame meets the wall
- Window film — a temporary insulating layer for the worst offenders
- Cellular shades — add a small insulating buffer
These help, and they are worth doing. But understand what they are: stopgaps. They slow the loss from a window that has fundamentally failed; they do not fix it.
The permanent fix
If the panes are fogged, the frames are failing, or the drafts return every winter no matter how much you caulk, the window itself is the problem. Energy-efficient replacements with Low-E glass, argon fill, and tight modern seals stop the draft at its source — and keep the heated air you paid for inside.
Rule of thumb: if you are re-caulking the same windows every fall and still feel cold, the math has already tipped toward replacement.
Comfort you can feel
The first winter after replacement, homeowners tell us the same thing: the rooms are finally comfortable, and the furnace stops running nonstop. Request a free estimate before the next cold snap.