What is the price for annual stucco maintenance and sealing in Ottawa?

Annual maintenance is one of the smartest investments you can make to protect your stucco exterior in Ottawa, where the climate puts exceptional stress on exterior cladding. A consistent maintenance routine can easily double the lifespan of your stucco and prevent the kind of costly repairs that neglected surfaces eventually need.

Annual Maintenance Costs

Basic annual maintenance for an Ottawa home's stucco exterior typically costs $300–$800, depending on the size of the home and what's included:

• Inspection and minor crack repair: $200–$400. A professional walks the entire exterior, identifies any new cracks, checks caulking at windows and penetrations, and repairs hairline to small cracks (under 1/8" width) with colour-matched patching compound.- Pressure washing / soft washing: $150–$300. Removes dirt, algae, and mildew buildup. Ottawa's humid summers promote algae growth on north-facing walls especially. Soft washing (low pressure with cleaning solution) is preferred over high-pressure washing, which can damage stucco surfaces.- Sealant application: $300–$600 for a full exterior. A breathable masonry sealer protects against water penetration while still allowing moisture vapour to escape from inside the wall assembly.

Comprehensive annual package: Many Ottawa contractors offer a bundled maintenance package—inspection, cleaning, crack repair, and sealing—for $500–$1,200 depending on the home's size and number of storeys.

How often should you seal stucco in Ottawa?

Ottawa's climate is particularly demanding. With 50+ freeze-thaw cycles per year, heavy spring rains, and winter road salt spray (especially for homes near arterial roads like Baseline, Innes, or Hunt Club), sealing is recommended every 3–5 years for most homes, not necessarily annually. However, an annual inspection is critical to catch problems early.

What a good annual inspection covers:

• All caulking joints at windows, doors, and utility penetrations- Weep screeds and base flashings for blockage or damage- Any new cracking—particularly at corners, around openings, and at control joints- Signs of delamination (hollow-sounding areas when tapped)- Staining that indicates moisture intrusion behind the stucco- Condition of any decorative elements or mouldings

DIY vs. professional: The inspection and cleaning portions are manageable for a handy homeowner. Crack repair and sealing are better left to professionals—improper patching is visible and can actually trap moisture rather than keeping it out. Using the wrong type of sealer (a film-forming sealer instead of a penetrating breathable one) is a common DIY mistake that causes far more damage than it prevents, because trapped moisture behind stucco in an Ottawa winter will freeze and blow the surface off.

The math is simple: spending $500–$800 per year on maintenance prevents the $5,000–$15,000 repair bills that come from neglect. Most stucco failures in Ottawa aren't material failures—they're maintenance failures.

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

• 613Bins
• JC Carpentry
• Joe Imerti Contracting
• Elie The Carpet Guy Inc.
• Somar Contracting Inc.

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