What determines exterior paint lifespan
Two homes painted the same summer can age completely differently. These factors decide which one holds up:
- Surface prep quality. This is the single biggest lever. Paint over dirt, mildew, chalk, or peeling layers fails early no matter how good the product is.
- Paint grade. Premium exterior coatings flex, seal, and resist UV and moisture far better than budget paint, and they hold color longer.
- Siding type. Wood, fiber cement, stucco, and vinyl each weather differently. Wood moves with moisture and needs the right primer; fiber cement is more stable.
- Sun and UV exposure. South- and west-facing walls take the most UV and fade and break down faster than shaded faces.
- Moisture and drainage. Walls that stay wet, from shade, poor drainage, or overflowing gutters, degrade a coating faster.
- Color. Darker colors absorb more heat and UV, so they can fade faster than lighter tones.
- Application thickness. Coats applied too thin do not build the protective film the surface needs.
Typical lifespan by surface (ranges)
Use these as general guidance. A free assessment tells you where your specific home stands.
| Surface | General lifespan in the PNW | Note |
|---|---|---|
| Wood siding | Several years, shorter on sun-facing walls | A free assessment tells you where yours stands |
| Fiber cement / Hardie | Longer, more stable than wood | A free assessment tells you where yours stands |
| Stucco | Several years, depends on cracking and sealing | A free assessment tells you where yours stands |
| Trim and fascia | Often shorter, takes the most weather and water | A free assessment tells you where yours stands |
| Decks and fences | Shortest, constant moisture and foot traffic | A free assessment tells you where yours stands |
**** Wondering where your home sits on that range? Get a free written estimate and we assess your siding, exposure, and current finish in person.
What shortens paint life in the PNW
The Pacific Northwest is the whole story when it comes to how fast paint fails here:
- Year-round moisture and mildew. Long wet stretches keep siding damp, and mildew takes hold on surfaces that stay wet.
- Shaded north faces. Walls that never fully dry out stay damp and mildew-prone, breaking the coating down from the surface.
- South and west UV. Sun-facing walls fade and chalk faster as UV breaks down the binder.
- Cedar tannin bleed. Cedar siding, common on older Seattle homes, can bleed tannin through paint without the right primer.
- Poor prep on the prior job. A previous quick coat over dirty, unprimed siding is often why a paint job did not make it as long as it should have.
- Clogged gutters. Overflowing gutters dump water down siding and trim, accelerating failure right where it overflows.
“Excellent painters. I had a 100-plus-year-old craftsman painted this spring. The house had not been painted for 20 years and Hedlund painting did an amazing job repairing the siding, trim and painting the house.” Jason U., 5 stars (Google)
Signs it is time to repaint
Watch for these. Several at once usually means the clock has run out on your current finish:
- Peeling, cracking, or blistering paint
- Chalking, a powdery residue when you rub the siding
- Noticeable fading, especially on south and west walls
- Mildew or dark streaks that do not wash off
- Exposed bare wood where the coating has worn through
- Caulk failure at joints, seams, and around windows
- Water stains on trim or under eaves
How Hedlund makes paint last
Lifespan is built in the prep, not the brand on the can. Our process is designed for PNW conditions:
- Full prep. We pressure wash, scrape, sand, and prime per surface so the coating bonds to a sound base.
- Carpentry first. We repair or replace rotted wood before paint, so you are never coating over failing siding or trim. See carpentry and wood repair.
- Premium coatings. We use Sherwin-Williams, PPG, and comparable grade exterior paints built to flex and resist PNW moisture and UV.
- 10-year workmanship warranty. If something is not right with the work we did, we come back and make it right.
“Hedlund just recently completed the repainting on the exterior of my house in Edmonds. Every step along the process went very smoothly and without a hiccup, which was great because I rent out the house.” Pierre P., 5 stars (Google)
