What is the price for full concrete resurfacing before epoxy in an Ottawa garage

Full Concrete Resurfacing Costs Before Epoxy in Ottawa Garages

Full concrete resurfacing before epoxy application in an Ottawa garage typically costs between $3 and $8 per square foot, depending on the severity of damage and the resurfacing method chosen. For a standard two-car garage of 400 to 600 square feet, that translates to roughly $1,200 to $4,800 for the resurfacing alone, before any epoxy coating is applied. This is a significant addition to the overall project cost, but it is often the only way to achieve a long-lasting epoxy finish on badly deteriorated concrete.

Resurfacing involves applying a polymer-modified cement overlay or self-levelling compound to the existing slab after all loose material, spalling, and contaminated concrete has been removed. In Ottawa, garage floors take extraordinary punishment from road salt, freeze-thaw cycling, and snowmelt moisture. After years of this abuse, many slabs develop widespread surface degradation that goes beyond simple crack filling or patching. When more than 30 to 40 percent of the floor surface shows spalling, pitting, or delamination, a full resurfacing overlay is more cost-effective than trying to patch dozens of individual defects.

The process begins with diamond grinding or shot blasting to remove all loose and unsound concrete and create a proper bonding profile. The contractor then applies a bonding agent followed by the resurfacing compound, which is typically spread at a thickness of 1/8 to 1/4 inch. High-quality polymer-modified overlays bond tenaciously to the existing slab and can handle Ottawa's temperature extremes without cracking or delaminating. The overlay needs to cure for 24 to 72 hours before epoxy application, depending on the product and ambient conditions.

One critical consideration in Ottawa is moisture. Before resurfacing, the contractor should perform a calcium chloride test or relative humidity probe test to ensure moisture vapour emission rates are below 3 pounds per 1,000 square feet per 24 hours. Spring snowmelt and Ottawa's relatively high water table can push moisture through concrete slabs, and trapping that moisture between a resurfacing overlay and an epoxy coating is a recipe for failure. If moisture levels are too high, a moisture mitigation system adds another $2 to $4 per square foot to the project.

When you combine resurfacing with a professional-grade epoxy system, total project costs for a two-car Ottawa garage typically land between $4,000 and $10,000. That may sound steep, but consider that a full concrete replacement — tearing out the old slab and pouring new — runs $12,000 to $20,000 or more. Resurfacing plus epoxy delivers a like-new floor at a fraction of replacement cost. Get at least three quotes from experienced contractors, and make sure each one includes a moisture test in their proposal. You can browse flooring and concrete contractors through the Ottawa Construction Network directory at justynrookcontracting.com to compare your options.

---

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

• Homeupgraders
• JC Carpentry
• Valcor Construction
• Rocksolid Demolition & Renovations
• Floor-2-Wall Inc