Common Fence Problems After a Canadian Winter (And How to Fix Them)

Common Fence Problems After a Canadian Winter (And How to Fix Them)

Canadian winters are tough—on people, vehicles, and especially fences. Between freezing temperatures, frost heave, heavy snow loads, and constant freeze–thaw cycles, even a well-built fence can come out of winter looking worse for wear.

If your fence didn’t look quite right once the snow melted, you’re not alone. Below, we break down the most common fence problems after a Canadian winter, what causes them, and how to decide whether it’s a DIY fix or time to call a professional.

 

 

1. Leaning or Shifting Fence Posts

The problem:
Fence posts that were once straight now tilt, wobble, or lean noticeably to one side.

Why it happens:
This is one of the most common winter fence issues in Canada, largely due to frost heave. When moisture in the soil freezes, it expands and pushes posts upward or sideways. Repeated freeze–thaw cycles make the problem worse, especially in clay-heavy or poorly drained soil.

How to fix it:

• Minor leaning may be corrected by re-setting the post and compacting the surrounding soil

• Severely shifted posts often need to be removed and reinstalled below the frost line

• Adding proper drainage and gravel backfill helps prevent repeat issues

When to call a professional:
If multiple posts are leaning or the fence line is visibly uneven, it’s best to bring in an expert. Improper re-setting can lead to repeat failures next winter.

2. Frost Heave Pushing Posts Upward

The problem:
Fence posts appear higher than before, creating uneven panel heights or gaps at the bottom of the fence.

Why it happens:
Frost heave occurs when frozen ground expands and lifts anything embedded in it—including fence posts that weren’t installed deep enough or lack proper drainage.

How to fix it:

• Remove affected posts and re-install them below the local frost depth

• Use crushed gravel for drainage instead of soil alone

• Consider steel or galvanized posts, which are less prone to movement

When to call a professional:
Frost heave often affects multiple posts at once. A professional can assess soil conditions and recommend a long-term fix instead of a temporary patch.

Link to our article on Installation of a Corrugated Metal and Wood Fence

3. Rotting or Soft Wood Boards

The problem:
Wood boards feel spongy, show dark staining, or crumble when touched.

Why it happens:
Melting snow and trapped moisture sit against fence boards for weeks or months. In shaded areas, wood may never fully dry, accelerating rot and fungal decay, especially in untreated or older fences.

How to fix it:

• Replace individual rotted boards if damage is limited

• Seal or stain remaining boards to improve moisture resistance

• Improve drainage or airflow around the fence line

When to call a professional:
If rot has spread to posts or structural rails, partial repairs may not be enough. A professional inspection can determine whether replacement is more cost-effective.

Link to our article on Comprehensive Fence Repair 

4. Cracked, Warped, or Split Boards

The problem:
Boards appear twisted, split, or cracked after winter.

Why it happens:
Extreme temperature swings cause wood to expand and contract. Repeated freeze–thaw cycles can lead to cracking, especially in older or lower-quality lumber.

How to fix it:

• Replace cracked or warped boards

• Upgrade to pressure-treated wood, composite, or metal infill panels

• Ensure fasteners allow for seasonal movement

When to call a professional:
If warping affects alignment or gate operation, professional repairs ensure the fence remains secure and functional.
Fence Repair 

5. Sagging or Misaligned Fence Gates

The problem:
Gates drag on the ground, won’t latch properly, or feel heavy and uneven.

Why it happens:
Winter ground movement shifts posts, while snow and ice add extra weight. Over time, hinges loosen and frames lose alignment.

How to fix it:

• Tighten or replace hinges

• Re-align the gate frame

• Reinforce or replace the gate post if it has shifted

When to call a professional:
Gate issues often indicate deeper post movement. A professional can fix the root cause instead of repeatedly adjusting hardware.
Fence Repair 

6. Loose Panels and Fasteners

The problem:
Fence panels rattle, boards feel loose, or fasteners have popped out.

Why it happens:
Cold temperatures cause materials to contract, loosening screws and nails. As temperatures rise in spring, the damage becomes visible.

How to fix it:

• Replace rusted or loose fasteners

• Upgrade to exterior-grade screws

• Check rails and supports for hidden damage

When to call a professional:
If looseness is widespread, a professional can determine whether structural elements are failing.

Preventing Future Winter Fence Damage

Many winter fence problems are preventable with the right preparation and materials. Consider:

• Installing posts below frost depth

• Improving drainage along the fence line

• Using galvanized steel posts, or composite

• Inspecting and tightening hardware before winter

For more tips, see our guides on BarrierBlog.

Final Thoughts

A Canadian winter can reveal weak points in even the best fence. Addressing issues early—before spring rains and summer heat—can save money and extend the life of your fence.

If you’re unsure whether a repair will hold up long-term, a professional assessment is often the smartest first step.

Need help restoring your fence this spring? Contact BarrierBoss for expert fence repair.