Seasonal Window Maintenance Checklist for DMV Homeowners

Clean all windows inside and out after winter. Remove any winter insulation film. Clean tracks and sills that accumulated dirt and debris over winter.

Inspect caulking and weatherstripping for winter damage. Cold temperatures can cause caulking to crack and weatherstripping to compress permanently.

Test all window operations: open, close, lock, unlock. Address any sticking, difficulty, or hardware issues before they worsen.

Check for any condensation damage: mold, mildew, wood rot, or paint damage from winter moisture.

Check that all windows close and seal properly for air conditioning efficiency. Drafty windows waste cooling energy in the DMV's hot, humid summers.

Inspect window screens for tears, holes, and frame damage. Repair or replace damaged screens to keep insects out while allowing ventilation.

Clean and lubricate window tracks and hardware. Heat can make windows stick; silicone lubricant keeps them operating smoothly.

Consider solar film or tinted glass for west-facing windows that receive intense afternoon sun.

Prepare windows for winter before the first frost. This is the most important seasonal maintenance window.

Re-caulk any exterior window perimeters with cracked or missing caulking. Use a high-quality, flexible exterior caulk.

Replace worn weatherstripping before cold weather arrives. Tight seals prevent drafts and reduce heating costs.

Check for failed IGU seals (foggy glass). Fall is the ideal time to replace them before winter energy demands.

Apply window insulation film to single-pane windows if budget does not allow glass upgrades.

Monitor for condensation and address moisture issues promptly. Wipe sills to prevent mold and wood damage.

Check for ice formation on interior glass, which indicates very poor insulation or air leakage.

Do not force stuck windows in cold weather. Wait for warmer temperatures or apply lubricant carefully.

After severe storms, inspect windows for new cracks, broken seals, or damage from debris.