Signs That Old Windows Need Replacement

Last reviewed: September 2026. Verify codes, manufacturer specs, and rebates before acting.

Watch for drafts, rising energy bills, condensation between panes, failed seals, stuck sashes, windows that won't lock, cracked glass, corroded frames, excessive noise, UV fading, and water intrusion.

Older single-pane windows and salt-air-damaged frames near the coast are common candidates for replacement.