Winnipeg, MB · 5 min read
The Winnipeg sealcoating window
Sealer needs consistently warm, dry conditions to cure properly — daytime highs above roughly 15°C and no overnight frost. In Winnipeg that realistically means late May through mid-September, with June to August being the most reliable stretch.
Sealing too early in spring or too late in fall is the most common mistake we see on driveways across River Heights, Charleswood, and Transcona. An uncured seal coat scuffs under tires and wears off within a season.
How often should a Winnipeg driveway be sealed?
Every two to three years is the right cadence for most residential asphalt in Winnipeg. Driveways with heavy sun exposure, no tree cover, or daily truck parking sit at the two-year end.
A new asphalt driveway should cure for at least 6 to 12 months before its first seal. Sealing green asphalt traps oils and leaves a soft surface.
Fill cracks before winter, not after
Water in a crack expands roughly 9% when it freezes, and Winnipeg gives it plenty of chances. Crack filling in late summer stops the water before the first hard freeze, which is why we always crack fill before applying sealer.
If a crack is wider than about 12 mm or the edges are crumbling, it needs patching rather than filling — we flag that during the free on-site inspection.
Between seal coats
Rinse road salt off in spring, clean oil drips quickly with degreaser, and keep the driveway edges trimmed so grass roots do not lift the asphalt shoulder.
Avoid turning your steering wheel while stopped on a hot day — power steering scuffs are the most common summer damage on freshly sealed Winnipeg driveways.
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