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Repair or replace your windows?

Not every problem window needs replacing.

ProblemUsually means
Fog or moisture between panesFailed seal. Replace the glass unit, or the window if it's old or several have failed
Drafts around the sashTry weatherstripping first; replacement if the frame is warped
Soft or rotted wood sill or frameMinor rot can be repaired; widespread rot points to full-frame replacement
Sash won't open or stay upBalance or hardware repair is often possible
Single-pane windowsStorm windows or replacement for comfort and efficiency

Homes built before 1978 may have lead paint on windows. Contractors disturbing it must follow EPA lead-safe (RRP) rules; ask whether the firm is certified.

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