Published cost guides put foundation repair at roughly 2,225 to 8,135 US dollars. The range is the honest answer and a midpoint is not. What decides a specific house is how many support points it needs, and how many of them are indoors.
What the ground under Houston does to that number
Up to 51% of the mapped soil here is clay, and the largest mapped unit is Clodine-Urban land complex, 0 to 1 percent slopes. Clay is what makes this a repeatable trade rather than an occasional one. It takes on water and swells, dries and shrinks, and the structure above rides the difference. It also decides depth. Support has to reach below the layer that moves, and that is the term in the price nobody can fix in advance.
Why depth is the term no quote can fix
Three independent quantities decide what you pay, and most proposals show you only their product: how many support points, where each one sits, and how deep each has to go. The soil mapping reported on this site is clipped to Harris County rather than to Houston itself, because the city boundary was too large for the query to run, and even at that scale the county mapping records infiltration from 0.03 in/hr at its slowest to 3.97 in/hr at its fastest. Ground that inconsistent across a single county’s mapping is not ground anyone should be pricing off an average.
Position is the term homeowners underestimate. Points around the outside are dug from the yard and nobody sets foot indoors. A point inside means cutting the floor, working through the opening and closing it again afterward. Houston’s median year structure built is 1981, and houses of that vintage have frequently collected an addition, a garage conversion or an enclosed patio in the years since, which can leave load-bearing line inside the envelope instead of around it.
So ask for the figure split into those three before you compare anything. Set against a median home value of 253,400 USD, the gap between a perimeter scope and an interior one is not a rounding item. Two bottom-line numbers tell you nothing about each other, and the itemization costs one email to request.
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