Termite problems in McKinney take different forms depending on which part of town you live in. Downtown's older houses sit on pier-and-beam foundations with open crawl spaces. Newer neighborhoods north and west of Highway 75 are almost all slab construction. Both are vulnerable to the same insect, but the entry points and warning signs vary enough that it helps to know which type of house you own.
The termite behind most McKinney claims
Eastern subterranean termites are the species that dominates Collin County. They live in colonies in the soil, forage along tunnels, and build mud tubes where they need to cross exposed surfaces. A mature colony can have many thousands of workers. Swarmers emerge in spring, usually on warm, still days following rain, and are often found at windows or door thresholds. Drywood termites are not typical in this region, and Formosan termites are largely a Gulf Coast issue.
Pier-and-beam houses near the square
Homes in the downtown historic district and nearby older streets often sit on wooden beams supported by piers. The crawl space beneath can hold moisture from poor drainage, plumbing leaks and clogged vents, and wood may be in direct contact with soil. Termites can hide in sill plates, floor joists and subflooring for years without visible exterior signs. Porch posts, wood steps and decorative lattice are other common entry points. When an inspector crawls beneath such a house, they are checking for mud tubes on piers, damaged joists and moisture issues.
Slab homes in Stonebridge Ranch, Craig Ranch and beyond
Slab foundations seem like they should be safe, but termites enter through expansion joints, cracks, and gaps around plumbing stub-outs. Brick veneer hides the slab edge, so mud tubes can run behind the veneer without being visible. The soil in this part of Texas shrinks and swells, and the resulting cracks help termites reach the framing. Homes with landscape beds higher than the slab edge, or with sprinklers hitting the walls, provide the moisture they like. Many builders applied a pre-construction treatment, but that protection fades over time.
Indicators to watch in McKinney homes
- Mud tubes along foundation walls, piers, garage corners or plumbing penetrations.
- Swarmers in the house or discarded wings on window sills.
- Soft or blistering wood around doors, windows and baseboards.
- Floors that squeak or sag unusually.
- Tiny holes in drywall or paint that looks wavy.
Inspection and treatment
A licensed inspector examines the exterior perimeter, garage, attic, crawl space (if present) and interior trim, probing suspect wood and documenting findings. In Texas, termite treatment is regulated, and providers hold state licensing. Common solutions include liquid soil treatments that establish a chemical barrier around the foundation, sometimes requiring drilling through concrete patios and driveways, as well as bait systems around the yard. Spot treatments may be used for small, isolated activity. Damaged wood is replaced by a contractor, and moisture issues are corrected separately.
Defensive habits for McKinney owners
- Keep soil and mulch below the top of the slab and brick ledge.
- Clear crawl space vents and fix standing water or leaks beneath the house.
- Do not stack firewood or lumber against walls.
- Check hose bibs, irrigation lines and AC condensate drains for leaks.
- Arrange an inspection each year, and always before a purchase.
Next step
When you call (844) 725-1661, PestMinistry will connect you with an independent licensed termite provider serving McKinney. We are a referral service only; the inspection, treatment and any follow-up come from that provider.
Can I tell if termites are active from a mud tube alone?
Not always. A tube may be old and abandoned, so an inspector will check for live termites.
Is bait better than liquid treatment?
Both can work. The choice depends on the structure, soil and personal preference.
Do termites eat brick or concrete?
No, but they travel through tiny cracks in them to reach wood.
How soon should I act after seeing swarmers?
Promptly. Indoor swarmers indicate a colony close by or within the structure.