One of the most common questions we hear from homeowners across Tsawwassen, Ladner, Delta, and Port Coquitlam is: "How long should my exterior paint last?" It's a fair question — an exterior paint job is a significant investment, and in BC's demanding coastal climate, the answer is more nuanced than the back of a paint can suggests. The short answer is 7 to 10 years for a quality job, but the real answer depends on a handful of factors that are very much within your control.
British Columbia's Lower Mainland is one of the most demanding environments for exterior paint in Canada. Unlike Alberta or Ontario, where the primary challenge is freeze-thaw cycling, coastal BC delivers a multi-front assault on your home's exterior:
Wood is the most common siding material on older homes in Delta, Tsawwassen, and Ladner, and it's also the most demanding substrate to paint. Quality latex paint on properly prepared wood siding in BC typically lasts 5 to 8 years. Cedar is particularly prone to tannin bleed-through, which can stain paint from behind if an oil-based primer wasn't used first. Wood also swells and contracts with moisture changes, which is why flexible acrylic paints dramatically outlast oil-based coatings on wood in this climate.
Fibre cement is the material of choice on many newer BC homes, and it holds paint significantly better than raw wood. A properly primed and painted fibre cement surface in the Lower Mainland can realistically hold a quality exterior finish for 10 to 15 years, particularly if a high-build acrylic formula is used.
Stucco is porous and can trap moisture if a breathable paint isn't used. Elastomeric coatings are the preferred product for stucco in BC — they bridge hairline cracks and allow water vapor to pass through while keeping liquid water out. A well-applied elastomeric coat on stucco can last 10 to 12 years in the Lower Mainland.
Painted brick and masonry holds paint longest of all — 15 to 20 years is achievable with a quality masonry paint and proper alkali-resistant primer. The caveat: once you paint brick, you need to keep painting it, as removing the paint without damaging the brick face is difficult.
In the Lower Mainland's climate, north-facing walls and south-facing walls age very differently. South-facing walls take heavy UV and dry out quickly after rain, leading to earlier UV fading. North-facing walls stay damp longer and are more prone to mold, mildew, and moisture-driven peeling. A premium paint with UV inhibitors is worth the extra cost on south exposures; a mildew-resistant formula is the priority on north and west walls.
Rather than painting on a fixed schedule, watch your home's exterior for these indicators that the paint film is reaching end of life:
"We've seen 15-year-old paint jobs on Tsawwassen homes that still look decent because the prep was done right and premium product was used. And we've seen 4-year-old jobs in Delta that were already peeling — all because corners were cut at the primer and caulking stages."
The longevity of your exterior paint job is determined as much by process and product choice as it is by the climate you're in. Here are the most impactful factors:
Scraping all loose paint, sanding feathered edges, and replacing any rotted wood before painting is non-negotiable. Paint does not seal over failing surfaces — it just fails with them.
For wood siding, an oil-based or shellac primer seals tannins and provides a superior bond for the topcoat. For fibre cement and other substrates, a dedicated exterior primer is always better than relying on "self-priming" topcoats.
A single coat, no matter how thick, does not provide adequate film build for BC's climate. Two full coats of a premium acrylic exterior paint — Benjamin Moore Aura, Sherwin-Williams Duration, or similar — dramatically extends service life over budget single-coat applications.
Water that gets behind the paint through gaps at window trim, door frames, and siding joints will cause peeling from the back. High-quality paintable caulk at every joint is inexpensive insurance.
In BC, the ideal painting window is late spring through early fall — typically May through September — when daytime temperatures are consistently above 10°C and rain is less frequent. Painting in cool, damp conditions prevents proper curing and dramatically shortens lifespan.
Repainting a home while the existing paint is still intact — but fading or chalking — is far less expensive than waiting until it's peeling and the wood beneath has begun to absorb moisture. Water-damaged siding requires replacement, not just repainting. Act while the film is tired, not failed.
In BC's coastal climate, expect 7 to 10 years from a quality exterior paint job using premium products and proper preparation. Homes near the water in Tsawwassen may be at the lower end of that range due to salt air; homes with good sun exposure and well-maintained gutters and caulking can hit the upper end. When in doubt, get a professional assessment — it takes 20 minutes and can save you from discovering rot or moisture damage that could have been caught earlier.
Texora Painting offers free exterior assessments as part of our quote process. We serve Delta, Tsawwassen, Ladner, Port Coquitlam, and Port Moody.
We'll tell you exactly what condition your exterior is in and what it will take to make it last another decade. Serving the Lower Mainland from Delta, BC.
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