Foundation repair in McKinney, Texas

McKinney writes the widest definition of foundation repair in this group, and it is the definition, not the fee, that catches people out: "Foundation repairs are defined as any leveling, replacement of piers, footings, shimming, or replacement of any part of the floor system. Any of these repairs will require a permit," and the city adds that this applies "to both slab-on-grade and pier & beam foundations alike" (McKinney foundation repair guidelines). Shimming a pier-and-beam floor is a modest job that many homeowners would not think of as permitted work. In McKinney it is.

Engineer first, permit second

The sequence is explicit. "To obtain the permit you must first submit an engineer's letter and drawing(s) detailing the location of the area(s) affected, and if any affected plumbing systems will require testing (water, sewer, and/ or gas)," submitted through the city's CSS portal, and the file closes only when the applicant uploads "the Final Engineer's Report" to that permit (McKinney foundation repair guidelines). The same document states the underlying rule in one line: "Foundations (new or repaired) are required to be engineered by a licensed professional registered in the state of Texas." On the city's permit page, applicants are told to select the "Residential Foundation Repair" type (McKinney home repairs permit information).

Two things follow. A bid in McKinney that does not include an engineer is incomplete on its face, because there is no route to a permit without one — and Texas licenses engineers, while it licenses no foundation repair trade, so the engineer's seal is the credential doing the work. And the guidelines usefully narrow scope: "These requirements pertain only to the sections of the foundation that you repair. Existing 'un-touched' piers, beams, and floor systems do not have to meet these requirements." A permit for four piers under one corner does not drag the rest of the house into compliance.

No fee amount is published on either page. A regional cost guide puts DFW permits generally at $50 to $350 (The North Texas Home Guide), which is context rather than a McKinney figure.

A very new city on Houston Black and Austin

McKinney's median year built is 2006, and 72.0 percent of its units were built in 2000 or later, split almost evenly between the 2000s at 34.1 percent and the 2010s at 34.7 percent (ACS 2019–2023, McKinney). All of the city's area is in Collin County (Census TIGERweb) — one county, one permitting authority, which is simpler than most of its neighbours.

Underneath, roughly 45.0 percent of the city's area is Houston Black and about 25.3 percent Austin, with Tinn at 8.3 percent and Altoga at 7.1 percent (USDA Soil Data Access). Houston Black carries plasticity index 32 to 78 and linear extensibility up to 17 percent, with official-description cracks "1.3 to 10 cm (1/2 to 4 in) wide" at a foot down in dry weather (SSURGO; USDA series description, Houston Black). The Austin quarter is not a Vertisol — it is a Haplustoll whose official description states no shrink-swell behavior, measured at PI 16 to 45 and linear extensibility near 7.5 percent (USDA series description, Austin; SSURGO). A meaningful slice of McKinney therefore sits on ground with under half the swell capacity of the city's dominant clay.

The Austin mapping here has a second wrinkle. Its largest McKinney unit is "Austin silty clay, 2 to 5 percent slopes, moderately eroded" at about 11.4 percent of city area (USDA Soil Data Access). Slope and erosion push the conversation toward surface water — where roof and lot drainage goes — rather than toward swell pressure.

The housing math matters too. Roughly seven in ten McKinney homes are younger than 2000, built as slab-on-ground under design practice that already assumed expansive soil. By vintage rule, post-1970 construction here is almost all slab; the small pre-1965 core is where pier-and-beam construction is commonly found. No published figure gives the actual split, and shimming-scope permits make sense precisely because both exist.

Watering days are tied to trash day

McKinney assigns days rather than publishing one citywide schedule: "All residential, commercial and common areas will be allowed to water lawns / landscape on the designated watering day and three days later, as needed," which pairs a Monday primary day with Thursday and so on. From "April 1 - October 31: No watering between 10 a.m. and 6 p.m.," "All irrigation systems must have a functional rain/freeze sensor," and "Water waste during irrigation activities is prohibited" (McKinney — Outdoor Water Use).

The rain/freeze sensor requirement is the detail with foundation consequences. A sensor that fails in the closed position quietly stops irrigation, and on Houston Black a few weeks of unnoticed dryness at the perimeter is enough to start differential movement.