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A driveway that has dropped an inch is cheap to lift and easy to ignore. It is also the same clay, under the same house — and flatwork moves first. Polyurethane foam brings the slab back to grade, and the elevation reading taken at the same visit says whether the house is doing anything too.
Exterior slabs are poured on soil that was never engineered, reinforced or drained the way the ground under a house is. They are thinner, unreinforced by comparison, and carry almost no load — so when Fort Bend County's Beaumont Clay shrinks through a dry summer, the driveway and the patio register it long before anything inside the house does. That is genuinely useful information, and it is thrown away every time a slab gets lifted without anyone reading the house at the same time.
Most of the time the answer is reassuring. Flatwork sinks on its own constantly here, the structure is fine, and the lift is a two-hour job that ends the matter. But "most of the time" is not a diagnosis, and the cost of finding out is nothing — the elevation survey happens on the same visit as the look at the driveway.
A driveway that dips in the middle of its own run is behaving like flatwork. One that steps down right where it meets the garage is describing the corner of the house it is attached to.
Doors that have started catching, a hairline running from a window corner, a gap opening above the baseboard — flatwork movement plus any of those is a different conversation from flatwork movement alone.
The survey measures relative elevation across the floor of the house, not the driveway. It either shows a slab within normal tolerance or it does not, and it is the only part of the visit that settles the question.
If the survey does turn up slab movement worth addressing, the flatwork waits. Driving piers around a perimeter disturbs the ground the driveway and patio are sitting on, and a slab leveled beforehand can drop again once that work finishes — the same lift, paid for twice. Level after the structural work, or level immediately if the survey comes back clean. Either way the order is decided by the reading, not by which quote arrived first.
Where the flatwork genuinely is the whole job — a settled walkway on a sound house, a patio that has pulled away from a sound slab, a garage apron that dropped on its own — polyurethane goes in through ports about the width of a coin and expands underneath, carrying the slab back to grade in minutes. Nothing is torn out, nothing is repoured, and the color and finish of the existing concrete are untouched because none of it is replaced. For flatwork on a house with no structural question attached to it, metro-wide concrete leveling covers it.
Not necessarily, and that is exactly the question worth answering before spending anything. Flatwork sits on unengineered soil and moves first, so a sunken driveway is often clay doing what clay does. But the same soil runs under the house, and only an elevation reading on the slab separates the two.
After, if the house needs anything. Piering a slab shifts the ground around the perimeter, and flatwork leveled first can move again once that work is done — paying twice for the same lift. If the survey comes back clean, there is nothing to wait for.
No. The inspection that produces the survey and the look at the sunken flatwork happen on the same visit, and the written report covers both.
One visit, one written report covering both. Call, or send the details through the form.
Call (346) 485-6954
Sugar Land