About Seal Tech Inc.

Who We Are

Seal Tech Inc. is a power washing, staining and sealing company based in Scarborough, Ontario. The company is owned and operated by Ryan Leonard, who serves as president and is on site for jobs. That hands-on approach keeps every project under the direct supervision of the person responsible for the company's workmanship, whether it is a backyard deck or a commercial plaza. When you request a quote, Ryan is the one who calls back and asks the few questions that matter for pricing.

For more than 15 years, homeowners, businesses and developers across the GTA have relied on Ryan and our cleaning and sealing specialists to clean, stain and seal exterior surfaces properly. Our office is at 53 Woodgrove Dr., Scarborough, ON M1E 3J9, and we serve Scarborough, Toronto, North York, Markham, Vaughan and the rest of the Greater Toronto Area, Monday to Friday from 8 am to 6 pm.

What We Do

For homeowners, we power wash, stain, seal and paint decks and fences, including pergolas. We clean, re-sand and seal interlock driveways, walkways and patios, clean and seal natural stone and patterned concrete, clean garage floors and apply epoxy coatings, and remove weeds from hard surfaces. For businesses, condos and developers, we seal and stain fences and decks in new and existing subdivisions, clean low-rise commercial building exteriors and underground parking garages, remove gum and graffiti, and power wash plazas, condos and apartment buildings. See our services page for the full list of what we do.

Trust and Accountability

Seal Tech holds an A+ rating with the Better Business Bureau and has earned the HomeStars Best of award three years running, in 2023, 2024 and 2025. The company is WSIB compliant, and we guarantee our work.

Our cleaning and sealing specialists pay particular attention to detail, ensure your satisfaction, and are always happy to listen and work through any concerns you may have during or after your project, whether it is residential or commercial. We take pride in using industry best practices, current equipment and time-tested cleaning and sealing techniques. We are also an environmentally conscious company and exercise diligence in using environmentally sensitive cleaning products and procedures.

Who We've Worked With

Over the years we have built strong, lasting relationships with homeowners, business owners, townships and developers who trust us for all their cleaning and sealing needs. We have done work for corporations, institutions and housing developers such as McDonald's, Jack Astor's, Mr. Sub, Toronto Transit Commission, York University, Aspen Ridge Homes, Tribute Homes, Mattamy Homes, Great Gulf Homes and Country Wide Homes, to name a few. Read what our customers say on our testimonials page.

Proudly Serving the Greater Toronto Area

We service the GTA and surrounding area for more than 15 years, including Vaughan, Woodbridge, Richmond Hill, Markham, Stouffville, Mississauga, Oakville, Pickering, Ajax and Whitby.

For a free written quote, call (416) 966-4200, email info@sealtech.ca, or send a message through our contact page. You can also attach photos with your quote form, and Ryan will follow up with the few questions that matter for pricing.