How much should I expect to pay for a deck contractor to fix bouncy or springy deck boards in Vancouver?

Fixing bouncy or springy deck boards typically costs $15-$45 per square foot in Metro Vancouver, depending on whether the issue is loose fasteners, inadequate joist spacing, or structural problems requiring new framing.

The cost to repair springy decking depends entirely on the underlying cause. Loose or corroded fasteners are the simplest fix — a contractor can re-secure loose boards with proper stainless steel or hot-dipped galvanized screws for $3-$8 per square foot of affected area. This is common in Vancouver's wet climate where standard zinc-plated screws corrode and lose their grip, especially on pressure-treated lumber.

Inadequate joist spacing is a more expensive structural issue. If your deck was built with joists spaced 24 inches on center (or wider) using standard 5/4-inch decking, the boards will feel bouncy underfoot. BC Building Code requires 16-inch joist spacing for most decking materials, and 12-inch spacing for some composite products. Fixing this requires adding new joists between existing ones — expect $25-$45 per square foot including materials and labour. A 200 square foot section would cost $5,000-$9,000 to properly re-frame.

Undersized or damaged joists represent the most serious and expensive scenario. If the existing 2x8 or 2x10 joists are too small for the span, rotted from moisture exposure, or cracked, they need replacement or reinforcement. This structural work runs $35-$65 per square foot and may require removing the decking entirely, installing new framing, and re-installing the deck boards. For a 300 square foot deck, complete joist replacement could cost $10,500-$19,500.

Metro Vancouver's marine climate makes moisture-related joist damage particularly common. Poor ventilation under the deck, inadequate ground clearance, or trapped moisture against the house can cause joists to rot from the bottom up — often invisible until the deck becomes noticeably bouncy. Contractors should inspect the underside of your deck to determine if the joists are structurally sound or compromised.

When to hire a professional: Any structural repair involving joists, beams, or load-bearing components requires a qualified deck contractor. Bouncy decking often indicates code violations or structural inadequacy that affects safety. A professional can properly diagnose whether you need simple re-fastening, additional joists, or complete structural replacement. For decks over 600mm above grade, structural modifications may require a building permit and engineering review.

Get multiple quotes and ask contractors to explain exactly what structural work is needed — some will try to sell complete deck replacement when targeted joist reinforcement would solve the problem at a fraction of the cost.