How much does it cost to parge the foundation of a typical Scarborough bungalow?

For a typical Scarborough bungalow, expect to pay between $1,800 and $4,500 for full foundation parging, depending on the foundation height, overall condition, accessibility, and whether you choose traditional Portland cement or polymer-modified parging. Most Scarborough bungalows have 100 to 200 square feet of exposed foundation wall, which is the primary cost driver.

Scarborough's housing stock is predominantly post-war construction from the 1950s through 1970s, meaning most bungalows have poured concrete or concrete block foundations with original parging that is now 50 to 75 years old. If the existing parging is flaking, delaminated, or sounds hollow when tapped, you are looking at a complete strip-and-reparge job rather than a simple patch. A full re-parging project — removing all failed material, cleaning and prepping the substrate, applying bonding agent, and applying two coats of new parging — runs $2,500 to $6,000 in the current GTA market. If the existing parging is mostly intact with only a few cracked or damaged sections, spot repairs typically cost $500 to $2,000.

The material choice makes a meaningful difference in both cost and longevity. Traditional Portland cement parging runs $8 to $12 per square foot installed, while polymer-modified parging costs $12 to $18 per square foot. For Scarborough specifically, polymer-modified is the stronger recommendation. Scarborough sits on heavy clay soil that holds moisture against foundation walls for extended periods, and the neighbourhood experiences the full brunt of GTA freeze-thaw cycling — over 50 cycles per winter. Polymer-modified parging's added flexibility and superior freeze-thaw resistance typically means it lasts 20 to 30 years versus 10 to 15 for traditional Portland in exposed conditions. The upfront premium of $4 to $6 per square foot pays for itself many times over by avoiding premature re-application.

Accessibility is another cost factor that catches homeowners off guard. If your bungalow has a walkout basement, a sunken garden, or tight side yards with fences and landscaping, contractors may need to work in confined spaces or temporarily remove obstacles. Tight access can add 10 to 20 percent to the overall cost. Corner lots with two or three exposed foundation walls will also cost more simply because there is more surface area to cover.

Before getting quotes, walk around your foundation and note the total linear footage of exposed wall, the height of the exposed foundation (typically 12 to 30 inches on a bungalow), and the current condition. Take photos of any cracks, flaking, or areas where you can see bare concrete or block through the old parging. This information helps contractors provide accurate estimates and helps you compare quotes meaningfully.

Always get at least three quotes from experienced masonry contractors. Verify that each contractor carries WSIB coverage — as a homeowner in Ontario, you can be held personally liable for workplace injuries if your contractor does not have valid WSIB clearance. Ask about the specific materials they plan to use, whether they apply bonding agent, how many coats they apply, and what their curing process involves. A contractor who cannot answer these questions confidently is not the right choice for your project. Toronto Parging can match you with local parging professionals through the Toronto Construction Network for free estimates on your Scarborough bungalow.