For drafty windows, resealing caulk is cheap DIY or modest pro cost. For foggy windows between panes, budget $250–$500 per window and call a glass specialist.

Here’s a solid, informative text you can use for a blog, FAQ, or client handout. It’s structured to be clear, practical, and helpful. If your windows feel drafty, show condensation between the panes, or have visibly cracked, peeling, or missing caulk, it’s time to reseal them. Resealing—which typically means replacing the exterior caulk and, for double-pane units, fixing a failed seal—can save you hundreds on energy bills.