Concrete Driveway Fall Checklist: Before Freeze-Up
Updated October 2026
Before freeze-up, give your concrete driveway a short fall check. Sweep and wash it so it can dry. Splash water on the surface: if it beads, the sealer still works, and if it soaks in and darkens the slab, reseal on a dry day before the salt season. Look at the cracks and mark any that sit beside a dip. Aim downspouts and runoff away from the slab, and decide now which de-icer you will use. A new slab poured this fall should get no salt at all in its first winter.
Winter is hard on a concrete driveway in Southern Ontario. Water gets in, freezes, thaws and freezes again, and salt makes every cycle worse. The best time to get ahead of it is a dry weekend in the fall, before the ground freezes. Here is a short checklist you can do yourself.
Clean it and let it dry
Sweep off leaves, grit and debris, and wash the slab if it needs it. Let the slab dry fully before you do anything else, especially before you seal.
Check the sealer
A concrete sealer soaks into and coats the surface so water and chloride cannot get in as easily. Less water in the surface means less ice, less pressure and far less scaling.
The test is simple. Splash some water on the driveway. If it beads up, the sealer is still doing its job. If it soaks in and darkens the slab, it is time to reseal. Sealer wears off first in the tire tracks and other high-traffic spots, so check there.
Do the sealing in the fall, on a clean, dry slab, before the salt season starts. A new slab is different: the first sealing usually waits until the concrete has cured, often the following season. For the full timeline, see how to protect concrete poured this fall through its first winter.
Look at the cracks
Walk the driveway and look at each crack. Some cracking is normal, because concrete shrinks as it hardens, and cracks that follow the saw-cut joints are typical. What deserves a closer look is a crack paired with a dip or sinking section. A sinking section often means the base has washed out or was poorly compacted. Our guide to normal and worrying driveway cracks explains how to tell them apart.
Take a photo of anything that worries you. Comparing it with a photo from next spring shows whether the winter moved it.
Send water away from the slab
A low spot that ponds water, or a downspout that dumps onto the driveway, soaks the same area over and over, and that is usually where scaling shows up first. Aim downspouts off the concrete. Clear any drain or low spot where water collects.
Also think about where you will put the snow. A pile of plowed snow that melts back onto the slab and refreezes overnight runs that spot through extra freeze-thaw cycles. Pick a place for snow where the meltwater drains away from the driveway.
Decide on salt now
De-icing salt loads the surface with water and lets the freeze do the damage, which is exactly how a slab flakes after winter. Plain rock salt is the hardest on concrete. Calcium magnesium acetate is the easiest on it, and magnesium chloride is harder than that but still easier than rock salt. Our guide to protecting concrete from winter salt damage covers the choices.
Shovel early, use sand for grip, and keep salt for the spots that truly need it. If your driveway was poured this year, use no salt at all through its first winter.
If the slab is already failing
If the check turns up deep cracks, a sinking section, or a surface that is rough and pitted across a larger area, fall is a good time to get it looked at. Whether the right fix is a reseal, resurfacing or a full replacement depends on how deep the damage goes, and that is hard to judge by eye. Pouring season runs roughly April to November, so a replacement is easier to plan before the freeze than after it.
If you want a professional opinion, we offer a free site visit and a written quote for any concrete driveway job, from repair to a full pour. Tell us what you found on your walk-around and we will take it from there.
When should I seal my concrete driveway in the fall?
Seal it in the fall, on a clean, dry slab, before the salt season starts. That puts the protection in place when salt and freeze-thaw arrive. To check whether you need to, splash some water on the concrete. If it beads up, the sealer is still working. If it soaks in and darkens the slab, it is time to reseal.
Do I need to do anything about driveway cracks before winter?
Look at them and note where they are. A crack that sits next to a dip or sinking section deserves a closer look before the freeze. A sinking section often points to a base or drainage problem, which is a different problem from normal shrinkage cracking. A free written assessment will tell you which you have.
Should I use salt on my concrete driveway this winter?
Go easy on it, and use none on a driveway poured this year. A slab in its first winter is the most vulnerable, so shovel first and use plain sand for grip. On an older slab, plain rock salt is the hardest on concrete, so choose a gentler de-icer and use less of it.
Can I pour or seal a driveway late in the fall?
Late-season pours are fine when crews protect fresh concrete through cold snaps, but weather moves pours in Ontario in the fall. If you want to park on a new slab before the snow flies, start the booking conversation early. Sealing a new slab usually waits until it has cured, often the following season.