How much does it cost to stucco a detached garage in Ottawa?

Stuccoing a detached garage in Ottawa typically costs between $4,500 and $12,000, with most standard single-car garages coming in at $4,500 to $7,000 and double-car garages at $7,000 to $12,000. The per-square-foot cost is usually $9 to $15, similar to house stucco but with some differences in project economics.

Garage-Specific Cost Factors

A standard single-car detached garage in Ottawa has roughly 400 to 600 square feet of exterior wall surface, while a double-car garage runs 700 to 1,000 square feet. The garage door opening subtracts a significant chunk of wall area, which helps keep material costs down compared to a home with many small windows.

However, there’s a cost dynamic that works against you with garages: minimum charges and mobilization costs. A stucco crew needs to bring the same equipment, scaffolding, and mixer to your property whether they’re doing a small garage or a large house. Many Ottawa stucco contractors have a minimum project charge of $3,500 to $5,000, which means a very small garage won’t cost much less than a slightly larger one.

This is exactly why the smartest approach is to stucco your garage at the same time as your house if both need doing. Contractors typically offer 10 to 20% savings on the garage portion when it’s part of a larger project, because the crew is already on site with all their materials and equipment.

For detached garages in Ottawa, surface preparation deserves special attention. Many garages are built on concrete block or have plywood sheathing that’s been exposed to weather longer than a typical house wall. Moisture testing the substrate before applying stucco is critical — if the underlying material is damp or compromised, the stucco won’t bond properly.

Ottawa’s building code requirements for detached garages differ from the main house. A garage within 1.2 metres of a property line must have a one-hour fire-resistance rating on that wall, and certain stucco systems can contribute to meeting this requirement. If your garage is close to the lot line, discuss this with your contractor — it may influence the stucco system recommended and could affect cost.

One consideration many Ottawa homeowners overlook: the garage floor slab and the stucco base. Stucco should terminate at least 150mm (6 inches) above grade or the slab surface to prevent moisture wicking. In Ottawa, where snowbanks pile against garage walls all winter and meltwater pools around foundations in spring, this clearance is essential for preventing premature failure at the stucco base.

For colour and finish, matching your garage stucco to your home’s existing finish creates a cohesive look that adds real property value. If your house already has stucco, ask the contractor to closely match the texture and colour. If your house has a different cladding — brick or siding — a complementary stucco colour on the garage can still look excellent and typically adds $3,000 to $8,000 in perceived property value for a well-done job.

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Looking for experienced contractors? The Ottawa Construction Network connects Ottawa homeowners with qualified professionals:

• Luxe Painting and Renovations
• RenoMotion Inc.
• Jaiko Cleaning Services
• ALTIOR CONSTRUCTION
• Rrenovatios

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