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Foundation Crack Patterns | McKinney, TX

Sep 14 2026 | By: BMB Construction, LLC

What Can Foundation Crack Patterns Tell You?

A crack is not automatically a foundation emergency, but the pattern can help show when it is time to stop patching and start looking for the cause. Direction, location, width, displacement, and whether the crack keeps returning all matter.

BMB Construction evaluates crack patterns for McKinney homeowners by looking at the entire structure rather than one visible line. The goal is to determine whether the damage is cosmetic, stable, or connected to broader foundation movement.

Which Crack Patterns Deserve a Closer Look?

Different materials show movement in different ways. Brick veneer often reveals stress through mortar joints, while drywall may crack near doors, windows, ceilings, or other framed openings.

Patterns worth documenting include:

  • Stair-step cracks through brick or mortar
  • Diagonal cracks extending from doors or windows
  • Drywall cracks that reopen after being patched
  • Separation between walls, ceilings, trim, or cabinets
  • Cracks with visible widening or displacement

One crack may still have a non-structural cause. The concern increases when several symptoms appear together, such as sticking doors, uneven floors, or matching damage inside and outside the home.

Why Is Repeated Patching Not Enough?

Patching drywall or repointing mortar can restore appearance after movement is addressed. If the structure is still changing, the repaired area may open again or another crack may develop nearby.

A foundation evaluation can add elevation measurements, drainage conditions, soil changes, previous repair history, and other symptoms to the visible crack pattern.

“The crack gets your attention, but the pattern around it tells us much more,” says Brad Biggar, founder of BMB Construction. “We want to know what else is changing before anyone covers it up again.”

Have the Pattern Evaluated Before You Cover It

If a crack is widening, spreading, or returning after repair, document it with photos and have the home evaluated before completing more cosmetic work. A clear diagnosis can help determine whether monitoring or structural repair is appropriate.

BMB Construction provides foundation evaluations for McKinney homeowners and surrounding communities. Call (817) 887-9014 or visit BMB Construction online to schedule an evaluation.

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