How Often Should You Seal Your Driveway in Ontario?

For asphalt driveways in Ontario, the recommended sealing interval is every 3–5 years. For concrete, penetrating sealers last 5–10 years before reapplication is needed. Sealing more frequently than these intervals is counterproductive — over-sealing builds up layers that crack and peel.

Asphalt Driveway Sealing Schedule

A new asphalt driveway should not be sealed for the first 90 days to one full year — the asphalt needs time to cure. The first sealing at the 1–2 year mark protects the surface as it enters its most vulnerable period. After that, every 3–5 years is the standard recommendation.

An asphalt driveway sealed every 2 years will eventually develop a thick, brittle sealer buildup that cracks in Ontario's freeze-thaw cycles. The surface looks "done up" but is actually worse off than one sealed every 4–5 years at the right time.

Concrete Driveway Sealing Schedule

Penetrating sealers (silane-siloxane) typically last 5–10 years. Film-forming acrylic sealers last 3–5 years but require old film to be stripped before reapplication — adding cost and effort that penetrating sealers avoid.

Signs It's Time to Seal

For asphalt: the surface has turned grey, the water-bead test shows no repellency, small cracks have appeared, or it's been 4–5 years since the last sealing. For concrete: the surface looks dusty or powdery, water no longer beads on the surface, or fine surface cracks have begun appearing.

When Not to Seal

Don't seal if: the surface has significant cracking needing repair first; the existing sealer is still performing; it's below 10°C; or rain is forecast within 24 hours.

Professional Driveway Sealing

D&D Home Services provides honest assessments — if your driveway doesn't need sealing yet, we'll tell you. Book a free assessment across Kitchener-Waterloo, Cambridge, and Guelph.

Devon Moore, Operations Lead Co-Founder & Operations Lead — D&D Home Services

Devon Moore is the co-founder and Operations Lead at D&D Home Services, with hands-on experience cleaning hundreds of homes across Kitchener-Waterloo, Cambridge, and Guelph.