What is the price range for a complete stucco-over-brick conversion on a semi-detached in Ottawa?

Stucco-over-brick conversion for a semi-detached home in Ottawa will typically cost between $18,000 and $35,000, depending on the size of your home, chosen stucco system, and current brick condition. This is a substantial investment that transforms both the appearance and performance of your exterior walls.

Understanding Stucco-Over-Brick Systems

The process involves installing a metal lath system over your existing brick, then applying either traditional three-coat stucco or a modern EIFS system. The brick provides an excellent solid substrate, but proper attachment and moisture management are critical in Ottawa's extreme climate. Your contractor will need to install furring strips or a specialized attachment system to create the proper substrate for the stucco mesh.

Traditional three-coat stucco over brick runs $12 to $18 per square foot for a typical semi-detached home with 1,000 to 1,400 square feet of wall area. This includes all materials, labour, and scaffold rental. EIFS installation over brick costs $16 to $25 per square foot but provides superior insulation value, which is particularly beneficial in Ottawa where heating costs are significant. The insulation component of EIFS can improve your home's thermal performance dramatically.

For a typical Ottawa semi-detached home, you're looking at total project costs of $18,000 to $25,000 for traditional stucco and $22,000 to $35,000 for EIFS. These ranges account for variables like brick condition, architectural details, window trim work, and chosen finish texture. Homes in areas like Centretown, Sandy Hill, or the Glebe may require heritage permits, which can add time and cost to the project.

Climate considerations are crucial for this type of conversion in Ottawa. The work must be completed during the stucco season (May through October) when temperatures consistently stay above 5°C. The existing brick needs to be assessed for structural soundness and pointing condition. Any loose or damaged mortar should be repaired before stucco installation. Proper flashing and drainage details at the base of walls are essential to prevent water infiltration and freeze-thaw damage.

Your next step should be getting at least three detailed written quotes from experienced contractors who specialize in stucco-over-masonry installations. Make sure they understand Ottawa's climate challenges and specify exactly which attachment system and moisture barriers they'll use. You can browse qualified stucco contractors through the Ottawa Construction Network directory at justynrookcontracting.com to start gathering quotes for your project.