When painting works
Painting is a smart option when the existing siding is structurally sound and the main issue is faded color or normal surface wear. Prep still matters: washing, scraping, caulking, priming, and careful application determine how long the finish lasts.
When replacement is smarter
If siding is cracked, swollen, soft, or trapping moisture, painting may hide the issue without solving it. Replacement allows the exterior to be opened, inspected, repaired, wrapped, flashed, and rebuilt with a cleaner system.
How to decide
Walk the exterior before choosing. Look at window corners, deck connections, bottom courses, trim boards, and shaded sides of the home. Those spots often reveal whether the issue is cosmetic or deeper.
Paint is finish. Siding replacement is exterior protection. The right choice depends on condition.