National Asphalte grades your lot in Laval, on the North Shore and in Montreal, so the slope sends water away from the house.
Rain and snowmelt drain off instead of sitting against your foundation.
We cut down the high spots and fill in the low ones.
Under a driveway or interlocking pavers, grading also leaves an even bottom, ready for the crushed stone base.
When your yard slopes toward the house
Over time, the soil settles around the foundation. The yard ends up sloping toward the house instead of away from it. Rain stops against the wall and can get into the basement. Grading turns the slope back the right way.
Signs of a poorly graded yard
You can spot for yourself where the water isn’t draining.
- Puddles stay against the house long after the rain.
- Ice forms in the same spot every winter, on the driveway or the sidewalk.
- Part of the driveway or the interlocking pavers sinks.
- Water gets into the basement when the snow melts.
If water is already getting into the basement, your French drain deserves a look too.
An even bottom under your driveway or pavers
Before a surface goes in, we grade the bottom of the excavation. It gets the slope the water will follow, under the surface as well as on top. A surface laid on an uneven bottom keeps the marks. Water sits in the low spots, then the surface cracks.
How we grade your yard
- We look at where the water comes from. We also find a spot where it can go without bothering your neighbours.
- We measure the elevations of the lot. We lay out the slope before we move any soil.
- The machine moves the soil. It takes soil from the high areas and pushes it toward the low ones. Near the walls, we add soil so the ground slopes down and away from the house.
- We compact the soil. Compacted soil keeps its slope after the rains.
National Asphalte also does the excavation.