Fence repair in Calgary: frost heave, leaning posts and gates that won't latch

Calgary is hard on wood fences. The soil freezes deep, chinooks thaw it and refreeze it through the winter, hail splits boards in summer, and the sun at this altitude dries out stain in a couple of seasons. The result is familiar in back lanes across the city: posts leaning toward the alley, gates that need a lift and a shove to latch, and rails pulling off at the ends.

The good news is that most fence problems are repairable without replacing the whole run. This guide explains why Calgary fences fail the way they do, which repairs make sense, and what to sort out with neighbours and the City before work starts.

Why Calgary fences lean and shift

Frost heave

When wet soil around a post freezes, it expands and grips the post. As it expands upward, it can lift the post a little. When it thaws, the soil settles but the post may not go all the way back down. After a few winters, posts that were set too shallow or in poorly draining soil are noticeably higher or tilted. In much of Calgary, clay-heavy soil holds water and makes this worse.

Rot at grade

Wood posts rot fastest right at ground level, where they stay wet and get air. A post can look solid above ground and be nearly cut through just below the surface. A push test usually tells you: if the post flexes from the bottom, it has likely rotted there.

Chinook cycles

Mid-winter thaws soften the top of the ground and let water in around posts. The refreeze grips them again. This is why gates often work fine in fall and stop latching by February. See what chinooks do to your house.

Wind

Solid privacy fences act like sails. Strong west winds push on long runs, especially on corner lots and along open green spaces, and loosen posts over time.

Gate problems and fixes

Gates are the most common fence call. Symptoms and likely causes:

• Gate drags on the ground: the gate has sagged on its hinges, or the hinge post has leaned.
• Latch misses the catch: one post has heaved or leaned, or the gate has racked out of square.
• Gate will not close at all in winter: the gate post has lifted with frost, or ice and snow have built up underneath.
• Gate swings open on its own: the latch is worn or the hinge post leans.

Fixes, from smallest to largest:

1. Tighten or replace hinge screws with longer exterior screws into solid wood.
2. Move or replace the latch to suit where the gate sits now.
3. Add an anti-sag cable and turnbuckle to pull the gate back into square.
4. Replace hinges with heavier ones for wide or heavy gates.
5. Reset or replace the hinge post if it has rotted or heaved.

Post repairs

When a post leans, there are a few options:

• Resetting a post that has heaved but is still sound, when the ground is not frozen.
• Bracing with a steel post repair spike driven beside the post, for posts that are rotted only at the base. This is a common fix that avoids digging out concrete.
• Replacing the post entirely, when rot goes higher than ground level or the post is split.

Post work is easiest from late spring to fall, when the ground is not frozen. Frozen ground in a Calgary winter makes digging very difficult.

Rails and boards

• Rails pulling off posts: usually from posts moving independently. Re-fastening with exterior screws or adding rail brackets helps.
• Split or missing boards: replaced individually. New boards look different at first; staining the whole run evens it out.
• Loose boards: re-fastened with exterior screws, which hold better than nails through freeze-thaw.

After a hailstorm, it is common to see split boards on the side facing the storm. See after a Calgary hailstorm.

Stain and paint

Calgary's strong sun and dry air break down fence stain faster than people expect. Boards turn grey, then begin to check and split. Re-staining every few years keeps the wood from drying out. Like all exterior coatings, stain needs suitable temperatures and dry wood, so it has to fit into Calgary's short exterior season. See exterior painting season in Calgary.

Repair or replace?

A fence is worth repairing when most posts are solid and the problems are limited to a few posts, a gate and some boards. It is usually time to think about replacement when:

• Most posts are rotted at grade or leaning
• Rails are split along much of the run
• Boards are grey, checked and splitting everywhere, not just on one side
• The fence has been patched so many times that each repair loosens the next section

A practical middle ground on many Calgary lots is to replace the worst posts and the gate now, and plan for the rest of the run in a year or two. A photo of the full run, plus close-ups of the posts at ground level, is enough to get a straight answer on which way to go.

Shared fences, permits and the City

A few things to sort before work:

• Shared fences. Many Calgary back-yard fences sit on or near the property line and are shared with neighbours. Talk to them before major repairs or changes.
• Height rules. The City of Calgary generally requires a permit for fences over 2 metres in the back yard or over 1.2 metres in the front yard, measured from grade. Repairs that keep the same height are usually straightforward, but check the City's current rules before building higher.
• Corner lots have sightline rules near intersections.
• Condo and HOA communities. Some newer communities and condo complexes control fence style and colour. Check before replacing boards with a different style or stain.

Fence repair across Calgary

Older inner-city neighbourhoods with back lanes, like Killarney, Bowness or Renfrew, often have fences that have been patched many times. Suburban communities built in the 1990s and 2000s, like Panorama Hills, Bridlewood or Cranston, now have fences reaching the age where posts start to go. And newer communities often have shared fences installed by the builder that need gate adjustments in the first years.

Kaur Handyman repairs fences and gates across Calgary, Airdrie and Chestermere. Decks have many of the same problems; see the deck inspection checklist. For everything else, see the services list.

What to send for a quote

• A wide photo of the fence run
• Close photos of the problem posts, gate hinges and latch
• Whether the fence is shared with a neighbour
• Whether you want matching stain afterwards

Free quote by text

Text a photo of the fence

Send a photo of the job, your neighbourhood and the days that suit you. You get a price back before anything is booked. Materials are agreed in the quote, and you can pay by Interac e-Transfer, cash or bank draft.

647‑806‑8070

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Calgary NW, NE, SW and SE, plus Airdrie and Chestermere.

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