What's the best way to repair a fence after a Vancouver windstorm?

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Vancouver Fence Builders · Accepted Answer

After a Vancouver windstorm, start with a thorough inspection of every post, rail, and panel before making any repairs — wind damage is often more extensive than it first appears, and fixing visible damage while ignoring weakened posts or loosened footings will lead to repeat failures in the next storm. Metro Vancouver experiences significant windstorms between October and March, with outflow winds from the Coast Mountains sometimes reaching 80 to 100 km/h on the North Shore and in exposed locations across the Lower Mainland.

Immediate safety steps come first. If your fence has fallen onto a sidewalk, lane, or neighbouring property, it creates a liability issue and should be cleared or secured as soon as possible. If the fence has fallen on or near overhead electrical lines, do not touch it — call BC Hydro's emergency line at 1-888-769-3766 immediately. If a fallen fence has exposed sharp nails, screws, or broken boards, cordon off the area to protect children and pets.

Systematic inspection is critical. Walk the entire fence line and check every post by pushing firmly at the top. A post that moves more than 10 to 15mm at the top when pushed is compromised — either the concrete footing has cracked, the soil around the footing has loosened, or the post has broken at or below grade. Mark every compromised post with tape or spray paint. Then check all rails for cracks, splits, or detachment from posts. Finally, inventory damaged boards or panels. This full assessment prevents the common mistake of patching the obvious damage while missing the hidden structural issues that caused the failure.

The most common windstorm damage patterns in Metro Vancouver include posts snapping at the ground line (where rot weakens the wood at the soil-concrete interface — the number one failure point), concrete footings rocking loose in saturated soil (extremely common after heavy rain followed by wind), entire fence sections blowing over as a unit (inadequate footing depth or diameter), individual boards or panels being ripped off by wind catching under loose edges, and gates being wrenched open and damaging gate posts and hinges.

Repair priorities should follow this order: First, address any posts that have snapped or are leaning more than 15 degrees — these are structural failures that will bring down adjacent sections. Post replacement costs $150 to $400 each in Metro Vancouver, including removal of the old post and concrete, new post set in concrete with gravel drainage, and reattachment of rails and boards. Second, repair or replace broken rails — sagging or disconnected rails put extra stress on the remaining fastening points and will cause progressive board loss in subsequent winds. Third, replace missing or broken boards. Fourth, re-secure any boards or panels that are still attached but have loosened fasteners.

For posts that have rocked loose but haven't snapped, you can often save them by excavating on the side opposite the lean, pushing the post back to plumb, and adding concrete to enlarge the footing. Pack 4 to 6 inches of drainage gravel around the base before pouring concrete. This is cheaper than full post replacement ($75 to $200 per post versus $150 to $400) and works well when the post wood is still sound.

Insurance considerations are worth noting. Most homeowner insurance policies in BC cover sudden windstorm damage to fences under the dwelling or structures coverage, subject to your deductible. Document the damage thoroughly with photos and video before starting repairs. If the damage is extensive (multiple sections down, several posts broken), file a claim before starting work — your insurer may want to send an adjuster. Keep all receipts for materials and contractor invoices. Typical deductibles in Metro Vancouver are $500 to $1,000, so claims only make sense for damage exceeding that amount.

Preventing future windstorm damage is just as important as the repair. If your fence blew over or lost sections, the original design likely had inadequate wind resistance for your location. Consider these upgrades during repair: increase post depth to 30 inches minimum (36 inches for exposed locations), enlarge concrete footings to 12 inches diameter, reduce post spacing from 8 feet to 6 feet in exposed sections, switch solid privacy panels to board-on-board (shadowbox) design that lets wind pass through, and add diagonal bracing at corner and end posts. These upgrades add 15 to 25% to the repair cost but dramatically improve wind resistance.

For major windstorm damage affecting multiple sections, hiring a professional fence repair crew is strongly recommended — they can assess the entire fence structure, identify hidden damage, and make repairs that will withstand the next storm. Vancouver Fence Builders can connect you with experienced repair contractors across Metro Vancouver, and demand is high after major storms so booking quickly is advisable.

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