Concrete Leveling and Mudjacking in McKinney
Leveling from $650; quoted by the square foot
Leveling starts at $650 and most driveways are done in a morning, which is the whole case for it over tearing out and repouring. A driveway that has dropped an inch at the garage door and a sidewalk panel the city sent a letter about are not foundation repairs, but they have the same cause as one and a much cheaper fix.
Why concrete sinks in Collin County
The clay that moves house foundations here moves driveways too, and a driveway has less weight and less depth to resist it. Water running under a slab washes fines out of the base and leaves a void. Poor compaction under a new driveway settles for years. Tree roots lift one side and the other side cracks. Once a void opens under a slab, the slab breaks across it under the next vehicle.
Two ways to lift
Polyurethane foam injection. The crew drills pencil-size holes through the slab on a grid. A two-part foam is injected through them and expands under the slab, lifting it. Expansion is controlled in small shots while a crew member watches a level. The foam cures in minutes, weighs almost nothing, and does not hold water. Holes are patched with matching cement.
Mudjacking. A cement and soil slurry is pumped through holes about two inches across. It is heavier, cures overnight, and costs less on large slabs. It is a fair choice for a long driveway or a commercial pad where weight on the subgrade is not a concern.
Either method lifts the slab from below. Nothing is removed and replaced.
What we level
Driveways and approaches, garage and shop floors, sidewalks and city walk panels, patios and pool decks, porch steps and stoops. Also slabs in additions that were poured separately from the house.
A sunken section of the house slab itself is a foundation repair rather than leveling if the drop is from clay movement. Foam can fill voids under a house slab after a plumbing leak has washed out the base, and we quote that as part of a foundation plan.
The visit
The crew checks the slab for cracks that would break under the lift and finds the low corners with a level. They also look for the water source that opened the void. Lifting takes one to three hours for a typical driveway. Most jobs are quoted from photos and done the same week.
Cost
Leveling is priced by the square foot of slab lifted and the depth of the void. A single sidewalk panel is at the low end. A full three-car driveway with a deep void at the apron is at the high end. Either is far below replacement. Where a public sidewalk panel is involved we check whether your city wants a permit before the crew is scheduled.
Have the city's letter handy when you call (972) 645-5576. The deadline on it sets the schedule.