MoCo Foundation Repair Montgomery County, Texas Request inspection
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Foundation repair in Conroe, TX

Conroe is our core city page. The city has grown quickly, mixes older housing near the historic center with many newer slabs, and sits on the soil series that shares its name.

Conroe is the county seat of Montgomery County and the starting point for this site. U.S. Census Bureau QuickFacts estimate the city’s population at 119,564 as of July 1, 2025, a 33.0 percent increase from the April 1, 2020 estimate base of 89,899. The 2020 Census count was 89,956. That kind of growth shows up in new subdivisions, new streets, and a lot of relatively young concrete.

Owner-occupied housing looks different inside Conroe than it does in the county as a whole. QuickFacts put the owner-occupied rate at 54.5 percent in Conroe for 2020-2024, compared with 71.8 percent countywide. The median value of owner-occupied homes in Conroe for that period is $309,600. This page is written for homeowners and for landlords who are responsible for a Conroe house, not as a claim that every resident owns their home.

Local photo coming soon

A photo you take in Conroe that shows the contrast the page describes: either an older street near downtown or a newer slab neighborhood at the city’s edge, plus trees or drainage if they are visible. Do not photograph a private backyard without permission.

Conroe’s older blocks and its new-construction edge are different foundation settings.

What is distinct about Conroe foundations

Texas Tough, summarizing USDA NRCS soil-survey (SSURGO) data, identifies Conroe as the county’s most common mapped soil: a moderate-swell loam with a plasticity index around 17, covering about 15 percent of the county. Sharing a name with the city does not mean every Conroe lot is that series. Soil changes over short distances, and only a site-specific look (and, when needed, a geotechnical report) can describe a single yard.

The same guide says about 60 percent of Montgomery County homes were built in 2000 or later, with a median year built of 2004, and that nearly all are slab-on-grade. It also says the roughly 13 percent of homes built before 1980 are found mostly in older parts of Conroe and in the county’s smaller towns, and that those houses are more likely to have conventional slabs or pier-and-beam systems and aging plumbing. That split is the Conroe story in brief: a historic and mid-century core, and a much larger ring of newer slabs.

New slabs fail in their own ways. Texas Tough points to settlement over fill on cut-and-fill lots, drainage that was never finished, and trees left close to the house during construction. Census QuickFacts list 13,614 building permits in Montgomery County in 2025. Many of those houses are outside Conroe’s city limit, but the city’s own 33 percent population increase is evidence that a large share of local housing is still young.

Weather, trees, and water around Conroe

The GHBA article by Drew Dudley, P.E., describes Montgomery County’s climate cycle as moderate to intense in its dry-moisture swings. Large pines and hardwoods are part of Conroe’s character as well, from older lots in town to wooded subdivision streets. Texas Tough notes that a mature tree can pull a large amount of water from under a slab in a dry summer, and that on clayey pockets that shrinkage can drop the slab edge nearest the tree.

Conroe also sits in a wet region with Lake Conroe to the northwest and drainage toward the San Jacinto River system. Texas Tough writes that floods along the West Fork of the San Jacinto River and Spring Creek can saturate the ground, and that slabs can shift as it dries. It also notes that Montgomery County is outside the Harris-Galveston Subsidence District and that subsidence has been less severe here than in Harris County. That is context, not a promise that a given Conroe lot is free of water or soil movement.

How to use this page if you live in Conroe

  • If the house is older, ask the inspector whether it is slab or pier and beam, and whether plumbing age is part of the discussion. See pier and beam.
  • If the house is newer, ask about fill, final grading, and trees planted at construction. See slab repair and drainage.
  • Compare what you are seeing with our warning signs list, then request an inspection rather than diagnosing from a photo.

MoCo Foundation Repair is not a Conroe contractor and does not have a Conroe storefront. Inspections and repairs are performed by [Partner contractor name TBD], an independent partner. Request help through our contact form or, once it is live, by calling (XXX) XXX-XXXX Phone number coming soon. Calls may be recorded.

Sources cited on this page