The Complete Guide to Retaining Walls in Calgary
Why Retaining Walls Are Common in Calgary
Many Calgary communities are built on slopes.
Retaining walls:
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Prevent erosion
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Create usable space
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Improve curb appeal
Types of Retaining Walls
1. Segmental Block Walls
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Interlocking system
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Ideal for residential yards
2. Boulder Walls
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Natural look
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Heavy equipment required
3. Engineered Walls (Over 4 Feet)
Often require:
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Engineering approval
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Proper drainage systems
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Geogrid reinforcement
Drainage Is Everything
Without drainage:
Walls fail.
Key components:
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3/4” washed drainage rock
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Perforated drain pipe
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Proper backfill
Retaining Wall Costs in Calgary
Small decorative wall:
$5,000–$12,000
Mid-size wall:
$15,000–$35,000
Large engineered wall:
$40,000+
FAQs
Do I need a permit for a retaining wall in Calgary?
Walls over certain heights may require engineering and approval.