Exterior Power Washing Services in Toronto & GTA

Sentinel Maintenance Inc (SMI) provides professional exterior power washing services designed to refresh and restore your building’s exterior surfaces. Using commercial-grade pressure washers and eco-friendly cleaning agents, we remove stubborn grime, mold, mildew, and environmental stains from siding, concrete, brick, and decks. Our adjustable pressure techniques ensure deep cleaning without damaging surfaces, making this service ideal for property owners preparing for repainting, inspections, or seasonal revitalization. Whether you're maintaining a commercial storefront or refreshing a residential façade, SMI delivers results that dramatically improve appearance and curb appeal. Serving clients across Toronto and the GTA, our power washing services help preserve property value and promote a cleaner, more professional exterior environment—perfect for first impressions and long-term maintenance.