Liquid barrier or bait: which is right for a Brentwood house?
A liquid barrier acts faster and is common on crawl space and accessible slab houses. Bait stations work more slowly but suit houses where drilling is difficult. The technician chooses by foundation type, termite activity and access. Neither works well without fixing moisture and wood-to-soil contact.
Liquid treatment places termiticide in the soil, so termites crossing it contact it. In a crawl space it can be applied along the foundation wall and around piers. On a slab, the technician may drill small holes at the edge and inject the product.
Bait stations take a different approach. Workers feed on bait and carry it to the colony, which can reduce or eliminate it over time. This takes longer and depends on regular checks. Some houses use both. Ask the technician why they are recommending one over the other.
What happens in a crawl space during treatment?
A technician enters the crawl space, treats soil along the foundation wall and around piers, and may treat sill plates and joists where termites are present. Moisture and debris are noted. You should clear access to the door beforehand.
Crawl spaces are cramped, and the work takes patience. The technician typically starts at the access door and works around the perimeter. Piers and any plumbing that comes up from the ground get attention because termites like to travel along them.
Expect to hear about conditions too: a torn vapor barrier, a downspout that dumps beside a vent, or wood scraps left on the ground. Those do not cause termites, but they help them. A fix for those problems is worth more than a second treatment later.
How long before the termites are gone?
Liquid barriers work on contact, but termites already in the house can take weeks to die off. Bait systems usually take longer. Either way, the technician will recheck and tell you what to look for. A single quiet visit does not prove the colony is gone.
Termite colonies are large and hidden, so success is judged over time, not by a single day. After a liquid treatment, mud tubes may stop appearing, and workers inside may die back. After bait, activity in the stations usually drops before it ends.
If you see swarmers or new mud tubes after treatment, call. Do not wait for the next scheduled check.
Will treatment repair the damage?
No. Treatment stops termites; it does not rebuild wood they have eaten. Damaged sill plates, joists or trim need a carpenter or contractor, and a structural problem may need an engineer. The technician can show you where damage is and how far it appears to run.
A treatment company can tell you where wood is soft and what it looks like, but repair is a separate job. Ask your carpenter to check the extent of damage before finishing walls or floors.