Pre-Construction Termite Treatment in Plano, TX

Why treat the soil before the slab is poured?

Before the pour, the technician can reach bare soil across the whole footprint and around plumbing stub-outs. After the concrete is placed, that soil is hidden and any later treatment has to work from the edges or through drilled holes, which makes complete coverage harder.

Termites find small gaps. A hairline crack in a slab, a plumbing penetration or an expansion joint can be enough, and treated soil under the pad is one layer of protection that complements later inspections.

It is not a lifetime shield. Product breaks down over time, soil moves and landscaping changes the conditions, so an inspection plan after move-in is still useful. A termite inspection is the follow-up step.

For townhomes and mixed-use buildings, it also helps to coordinate treatment with the sequence of trades. Plumbers, electricians and grading crews all disturb soil, and a treatment applied before that work is done may need to be repeated.

Does Blackland clay change how a new slab is treated?

Blackland Prairie clay can shrink and swell a great deal, and slabs built on it are designed for that movement. A technician treats the soil the same way, but clay movement can later open cracks and gaps, so the exterior edge and penetrations deserve ongoing attention.

Soil surveys describe the clay as having very high shrink-swell potential, which is one reason builders in North Texas use engineered foundations. Termite treatment does not change the foundation design, and the foundation design does not stop termites from using a crack.

The Blackland clay and termites guide covers this in more detail. Ask your builder whether the slab is post-tensioned or conventionally reinforced, since that affects where drilling is safe later.

What should a builder or owner ask about the treatment?

Ask which product is planned, when it will be applied relative to the pour, who keeps the treatment record, what happens if rain or soil disturbance follows, and what follow-up inspection is suggested. Ask also for the license number of the company doing the work.

Texas pest control businesses must hold a Structural Pest Control Service business license from the Texas Department of Agriculture, and any company you consider should be willing to give its number on request. Keep the treatment paperwork with the closing documents for the house.

If a general contractor arranges the treatment, ask for the company name and the date so you can follow up.

Ask also whether the treatment record will list the product, the area covered and the date. A record that is specific is far more useful to a lender or a later technician than a one-line invoice.

How much does pre-construction treatment cost?

The price depends on the size of the foundation, the number of slabs or buildings, the product and method, the schedule and whether a second perimeter treatment is planned. A technician explains the price and approvals before the soil is treated, and quotes are usually site-specific.

No fixed figures are published here, because the price depends on the footprint and the job. For a townhome row or a multi-building site, ask whether there is a per-building or per-site price, and whether re-treatment after weather is included.

Builders often compare quotes, and it helps to give each company the same plans and dates so the numbers can be compared fairly.

What can go wrong between treatment and pour?

Heavy rain, soil disturbance, added fill, plumbing changes or a long delay before the pour can compromise the treated layer. Tell the technician about any of these so the area can be re-treated before concrete is placed.

• Rain after application and before the vapor barrier
• Fill dirt or gravel added over the treated soil
• Plumbing or utility trenches cut after treatment
• Wood form boards, stakes or debris left in the soil
• A long delay between treatment and the pour