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Thomas Engineering Consultants

Expansive clay soil

  • 23 Feb 2026
    French drains near foundations can help manage water—but in Texas clay soils, improper design can worsen foundation movement and damage.
  • 29 Dec 2025
    Introduction Many homeowners across North Texas assume winter gives their foundation a break. Trees lose their leaves, growth slows, and foundation movement should stop. Unfortunately, that assumption is incorrect. In Texas, foundation movement is driven by soil moisture behavior, not temperature. Even when trees are dormant, changes in winter moisture