Winter in Laval means freeze-thaw cycles and road salt that penetrate bare concrete. A protective seal applied every two to three years stops water and salt at the surface, preventing spalling and extending your driveway's life by years. Laval Concrete matches the sealer to your finish and handles the full cycle from inspection to cure.
Unsealed concrete is a sponge. Moisture soaks into the pore structure, and when temperatures drop below freezing, that water expands. The expansion fractures the surface from inside, creating spalls and flakes that chip away with each thaw cycle. De-icing salt makes it worse by lowering the freezing point, so the cycle runs more often and faster.
A quality sealer fills those pores and creates a barrier. Water and salt sit on top instead of penetrating, which stops the freeze-thaw damage before it starts. The slab stays intact, the colour stays rich, and the surface resists staining from road grime and mineral deposits.
Different finishes need different sealers. A concrete patio with exposed stone, a stamped driveway, and a plain brushed finish each have their own sealer profile. We assess the finish and pick the product that bonds properly and lasts the full cycle.
Recent work
The sealing sequence
Step-by-Step Driveway Sealing Process
Surface assessment and prep planning
We walk the slab, identify the finish type, and spot any cracks or damage. If driveway repair is needed first, we flag it now so the seal bonds to a sound surface.
Clean and pressure-wash
The concrete is cleaned at the right pressure for the finish to remove oil, dirt, and salt residue. The slab is then allowed to dry completely so the sealer can adhere properly.
Apply sealer at spec coverage
The matched sealer is applied at the manufacturer's recommended rate, with even coverage and no pooling. Some systems need a second coat for durability; we follow the product schedule.
Cure and schedule next visit
The seal cures for 24 to 48 hours before the driveway is back in use. We note the reseal date so you know when the next protective coat is due.
Maintenance rhythm
When to Reseal and What Signs to Watch
Most Laval driveways need resealing every two to three years. Decorative finishes like exposed aggregate sit at the shorter end because the texture holds more moisture. Plain brushed concrete can stretch toward three years. The real indicator is water behaviour: when water stops beading and starts soaking in, the seal is worn through.
Look for colour fading, a dull or chalky surface, salt stains that don't rinse away, and small pits where freeze-thaw is starting to win. Catching these early means a reseal fixes them. Ignoring them turns into driveway repair work the next season. For the full range of driveway options, see our driveway services page.
Reseal timing, product selection, finish-specific care and freeze-thaw protection.
Generally every two to three years. Decorative finishes like stamped concrete often want a shorter interval; plain brushed finish can stretch slightly longer. The tell is when water stops beading on the surface.
Yes, but most DIY sealing fails because the prep is too light, the sealer is wrong for the finish, or the coverage rate is off. Done pro-grade, sealing is a couple-year investment; done wrong, it can trap moisture and accelerate damage.
A little. Sealer brings up the colour of the concrete, especially on exposed aggregate and coloured concrete. The look is usually richer; if you want a matte finish, we can pick a matte sealer.
Yes, ideally. Sealer over an open crack just fills the crack with sealer temporarily; the crack still opens with freeze-thaw. Crack repair first, then sealing, is the durable order of operations.
Typically about 30 days. Concrete needs to release its initial moisture before a sealer goes on, otherwise the sealer can fog or fail to bond. We schedule the first seal at the right window after a new pour.
Homeowner reviews
What Laval Homeowners Say About Their Driveway Sealing
Reseal every couple of years. The driveway looks decades younger than its actual age and we have never had spalling, even after our worst freeze-thaw winters.
C. O.
Laval
★★★★★
They explained which sealer matched our exposed-aggregate driveway. The water beads up properly again and the colour is brighter than it has been in years.
F. E.
Terrebonne
★★★★★
Caught a few small cracks during the seal inspection, repaired them first, then sealed. Honest about what to do in what order, did not push extra work.
N. M.
Longueuil
★★★★★
Stamped patio resealed on schedule for three years running. The colour and pattern still pop, exactly like the first year.
S. J.
Montreal
From the blog
Concrete Guides & Articles
Practical reading on planning, finishes and caring for concrete in Laval.
Whether it is time for a reseal or your new slab just hit the 30-day window, we will inspect the concrete, recommend the right sealer, and provide a written quote at no charge.
