How much to repair a rotting deck board in Vancouver $?

Replacing a single rotting deck board typically costs $15-$40 per board in Metro Vancouver, including materials and labour. For a standard 5/4" x 6" cedar board, expect $20-$30 per board replacement. Composite board replacement runs $25-$40 per board due to higher material costs.

The total cost depends on several factors specific to your deck. Cedar decking boards cost $8-$15 each for standard grades, while composite replacement boards run $15-$25 each. Labour adds $10-$20 per board for straightforward replacements on accessible ground-level decks. If the contractor needs to remove railings, work around obstacles, or access an elevated deck, labour costs increase.

Multiple board replacement becomes more cost-effective — contractors often charge a minimum service call fee ($150-$250), so replacing 3-5 boards at once spreads that fixed cost. If you're replacing more than 20% of your deck surface, consider whether a full deck replacement makes more financial sense than piecemeal repairs.

Metro Vancouver's marine climate accelerates wood decay, especially on boards that stay damp from poor drainage or limited sun exposure. North-facing deck boards and areas under roof overhangs where water drips consistently are most vulnerable. When replacing rotting boards, inspect the joists underneath — if moisture has reached the structural framing, you're looking at a more extensive repair involving joist sistering or replacement ($50-$100 per linear foot).

Matching existing deck boards can be challenging after several years. Cedar weathers and changes colour, and lumber dimensions have evolved over time. Your contractor may need to plane new boards to match thickness or pre-weather them with a wood aging solution. Composite boards must match the exact product line and colour — discontinued lines create expensive sourcing challenges.

This is a reasonable DIY project if you're comfortable with basic carpentry and the deck is ground-level. You'll need a circular saw, drill, pry bar, and matching fasteners (stainless steel screws for Vancouver's climate). Remove the damaged board carefully to avoid damaging adjacent boards, measure precisely, and pre-drill composite boards to prevent cracking. However, hire a professional if the rot extends to structural members, the deck is elevated, or you discover multiple compromised boards during removal.

Prevention is more cost-effective than replacement — annual cleaning and staining in Metro Vancouver's wet climate prevents the moisture penetration that causes board rot. A $300 annual maintenance investment protects a $15,000+ deck from premature failure.

Need help finding a deck repair specialist? Vancouver Deck Contractors can match you with experienced professionals who understand Metro Vancouver's unique moisture challenges and can assess whether your deck needs spot repairs or more comprehensive restoration.