Why treat the soil before a foundation is closed in?
Soil treatment is generally easiest while the ground is open, before the footings, slab or framing covers it. Once the structure is closed in, reaching the soil around it is harder and often more disruptive, so timing is part of the plan from the start.
The builder's schedule decides when the ground is open. A treatment window that falls between grading and the pour gives the technician access to the trench lines and the perimeter, and it lets the record show exactly where the material went.
Penetrations need the same attention. Pipes, wires and drains that pass through the foundation are common points of contact with the soil, and the scope names each one so none is missed.
- Grading and trench lines
- Perimeter of the foundation
- Pipe, wire and drain penetrations
- Areas the builder will not reach later
Does a new build still need a written termite record?
Yes. A written record of the treatment, its area and its date helps a future buyer, lender or inspector understand what was done. The company that applied it should give the record and its licence number.
The record is most useful when the house is sold, refinanced or inspected years later. A clear map of the treated areas and a note of the method let a later inspector see what was done without guessing.
Keep the written scope with the building file. If the builder changes the plan after the treatment, tell the technician so the record can be updated.
- Date of treatment and the area covered
- Method and any barrier materials used
- Company name and state licence number
- A map of the treated areas
What changes when a house is rebuilt on the same ground?
A rebuild on the same ground means the old wood, old soil and any earlier treatment all need to be considered. The technician checks what remains, what was removed and where the new framing will sit, then plans the treatment around that.
Old wood left in the ground or placed against the new foundation can carry termites back into the rebuild. The plan states what was removed, what stays and what has been replaced, so the new structure is not built on an unexamined base.
Soil that was disturbed by demolition may have changed in ways that matter. The technician looks at the soil in its current state, not at the plan from the original house.
- What was removed from the old structure
- What remains in the ground or against the foundation
- Where the new framing will sit
- Any earlier treatment and its record
What does pre-construction treatment cost?
The price is confirmed on site, once the foundation plan and the soil conditions are known. The area of the footprint, the number of penetrations and the timing all shape the quote, so no figure is printed here.
A simple slab with few penetrations is the least complicated scope. A larger foundation, a crawl space or a rebuild on a difficult site takes more material and more time, and the quote reflects that.
The builder and owner should ask for the scope and the price in writing before the treatment window is booked, so that the plan and the cost are clear before the ground is opened.
- Footprint and number of penetrations
- Foundation type and soil access
- Timing relative to the builder's schedule