The paint around my windows keeps peeling off - is that a window problem or paint problem?

Peeling paint around windows is typically a moisture problem rather than just a paint issue, and it often indicates that your windows aren't sealing properly or there's condensation buildup.

Moisture is the main culprit behind paint failure around windows. When warm, humid indoor air meets cold window frames or glass, condensation forms. This moisture seeps into the paint film and wood trim, causing the paint to lose adhesion and peel away. In Ottawa's climate with our cold winters and temperature swings, this is especially common with older windows that lack proper weatherstripping or have failed seals in double-pane glass.

Check your window seals and weatherstripping first. Look for gaps around the window frame, cracked caulking, or visible daylight coming through. If you have double-pane windows, fogging between the glass panes means the seal has failed and moisture is getting inside the unit. Poor ventilation in the room can also contribute to excess humidity that leads to condensation and paint problems.

In Ottawa's climate, this issue is particularly common during winter months when the temperature difference between inside and outside is greatest. Older single-pane windows or windows with aluminum frames are especially prone to condensation issues because they conduct cold more readily than modern vinyl or fiberglass frames.

The solution often involves both paint and window work. You'll need to scrape and reprime the affected areas with a high-quality primer designed for moisture-prone areas, then repaint. However, if the underlying moisture problem isn't addressed through better window sealing, weatherstripping replacement, or window upgrades, the paint will likely peel again.

For persistent moisture issues around windows, a professional assessment can determine whether weatherstripping, caulking, or window replacement would be the most effective long-term solution.