The short answer
For most commercial properties in London and Southwest Ontario, every two to three years is the right sealcoating cadence. But that number shifts depending on your specific surface conditions, traffic load, and maintenance history. Understanding what drives the timing helps you plan your maintenance budget accurately and avoid the cost of going too long between applications.
What accelerates seal coat wear?
Not every commercial lot ages at the same rate. The following conditions push your timeline closer to every two years:
- High daily traffic volume from vehicles, delivery trucks, or heavy equipment
- Significant direct sun exposure that accelerates UV oxidation
- A lot with no prior sealcoating history that is starting from a depleted surface
- Fuel and oil spill exposure from drive-throughs, loading docks, or fleet vehicles
What extends the interval?
Lots that hold up well between applications typically share a few common traits:
- Consistent maintenance history with no gaps longer than three years
- Lower traffic volume or primarily lighter passenger vehicle use
- Good drainage that prevents standing water from penetrating the surface
- Covered or shaded areas that reduce direct UV exposure
For these properties, a three year schedule is realistic and cost-effective.
The New Pavement Rule
A freshly paved surface needs 90 days to fully cure before its first sealcoat application. Sealing too early traps gases in the asphalt and compromises both the new surface and the sealcoat bond. After that first application, the two to three year cycle begins.
Skipping the first sealcoat on new asphalt is one of the most common and most expensive mistakes commercial property owners make.
How to know where your lot stands
If your surface is showing grey oxidation, surface roughness, or hairline cracking, it is telling you the sealcoat has worn through and the asphalt binder is now exposed. Do not wait for another winter to confirm it.
Contact Nucore at (226) 239-7501 or sales@nucoreconstruction.ca to book a free site assessment across London and Southwest Ontario.
