Winter Deck Maintenance for Calgary Homeowners
Calgary's climate can be brutal on outdoor structures. With temperature swings from -30°C to +10°C within days, your deck faces unique challenges. Here's how to protect it.
Pre-Winter Checklist
1. Deep Clean
Before the first snowfall:
- Power wash to remove dirt and debris
- Clean between deck boards
- Remove all furniture and planters
2. Inspect for Damage
Look for:
- Loose or popped screws/nails
- Cracked or split boards
- Soft spots indicating rot
- Wobbly railings
3. Apply Protection
Depending on your deck material:
- Wood decks: Apply water-repellent sealer
- Composite: Clean and inspect (usually no sealing needed)
- Pressure-treated: Consider staining if not done in fall
During Winter
Snow Removal Best Practices
- Use a plastic shovel (metal can damage boards)
- Shovel with the grain of the wood
- Don't let snow pile up for extended periods
- Avoid salt and chemical de-icers (they can damage wood and composite)
Alternative De-icers
- Sand for traction
- Calcium chloride (gentler than rock salt)
- Cat litter for grip
Spring Recovery
After winter, assess any damage:
- Clean thoroughly once snow melts
- Check for frost heave affecting posts
- Look for new cracks or warping
- Plan any needed repairs before summer use
When to Replace vs. Repair
Consider replacement if:
- More than 25% of boards are damaged
- Structural posts are compromised
- The deck is over 15-20 years old
- Extensive rot is present
TrekStone Deck Services
We offer:
- Deck inspections and assessments
- Board replacement and repairs
- Complete deck construction
- Custom pergolas and railings
Contact us to schedule your deck inspection before winter hits.
deck maintenancewinter prepoutdoor livingcalgary weather

Written by
Mirza Azizi
TrekStone team member sharing insights and expertise to help Calgary homeowners make informed decisions about their construction projects.