How long does exterior paint last on a house?

On a well-prepared surface, good quality exterior masonry paint lasts seven to ten years before it needs a fresh coat. Cheaper paints might only last four to five years. The single most important factor is preparation. If you paint over flaking or chalky surfaces without scraping, washing, and priming first, even the best paint will fail within two or three years. I always use a stabilising solution on chalky render before applying two full coats of a premium masonry paint. Our painting and decorating cost guide covers typical prices for exterior work.

Timber surfaces need repainting more frequently than masonry. Exterior woodwork — fascias, soffits, window frames, and doors — typically needs repainting every five to seven years with a good exterior gloss or satin. South and west-facing elevations take the most punishment from sun and rain, so those sides of the house will need attention first. If you notice cracking, peeling, or the paint chalking when you rub it, do not wait. Letting moisture get behind the paint film leads to timber rot, which is far more expensive to fix than a repaint.

Coastal properties are the hardest hit. Salt spray, wind-driven rain, and higher UV exposure mean exterior paint on a seafront property may only last four to six years even with premium products. I recommend silicone-based masonry paints for coastal homes because they are more breathable and resistant to salt damage than standard acrylics. For timber, a microporous exterior wood stain lasts longer than traditional gloss in exposed locations because it flexes with the wood rather than cracking and peeling.