Professional Power Washing in St. Catharines

Power Washing in St. Catharines

St. Catharines has a large inventory of concrete driveways and patios installed during the suburban expansion of the 1960s through 1980s, particularly in the Grantham district and the east end. These older concrete surfaces develop a characteristic black algae streaking that penetrates the porous surface over time, making it appear permanently stained. This is one of the most common power washing jobs we perform in the city, and the results are consistently dramatic — properly pre-treated and high-pressure washed, these driveways come back to a clean grey tone that can look like an entirely different surface. Pre-treatment with an algae-targeted biodegradable solution is essential to achieving lasting results rather than simply displacing surface dirt that recontaminates quickly.

Port Dalhousie's lakefront patios and outdoor entertaining spaces face a different profile: the combination of Lake Ontario mineral spray, moisture from the lake, and shaded conditions on many properties creates persistent algae and moss growth on concrete, natural stone, and wood decking. We approach these surfaces with pre-treatment and appropriate pressure calibrated to the material — natural stone and softer wood require significantly lower pressure than poured concrete. The North End's heritage brick exteriors and older stone foundation walls benefit most from our soft-wash approach, which lifts biological growth and grime without the surface damage that can result from high pressure on aged mortar joints.

HST additional. All pricing subject to on-site assessment.