What does a technician look for under the floor?
A technician looks for standing water, soil contact with wood, a torn or displaced vapor barrier, soft wood, and any sign of termites, wood-decay fungi, cockroaches or rodents. Each finding is recorded with its location.
The first things noticed are usually the conditions: water on the soil, wood that sits in the wet, and a barrier that no longer covers the ground. Those conditions favor both wood-destroying organisms and pests, so they are recorded before the activity is looked for.
Which pests use a crawl space?
Smokybrown cockroaches, the house mouse, the Norway rat and the roof rat all use the dark, damp space under older houses, and wood-decay fungi use the damp wood. Each has its own signs and its own route in.
Smokybrown cockroaches are tied to older neighborhoods with mature hardwoods, where they live in tree holes and leaf litter outside. They are active at night and rarely found in kitchens, which is why a crawl space is a common place to find them. Rats and mice usually hide by day and come out at night, and a small hole with chewed edges is a sure sign that an animal is using it.
Why does moisture matter under the house?
Moisture is one of the conditions that favor subterranean termites and wood-decay fungi, and it attracts many of the pests that use a crawl space. Standing water and wet soil are the conditions a technician records first.
Wood that stays damp is more likely to be affected by decay and by termites, and wood in direct contact with soil is the most exposed. The technician notes where water pools, where the soil is bare and where wood touches the ground, since those are the places the moisture is doing its work.
What about older crawl-space houses in the nearby towns?
The older stock in Lilburn, Monroe and Oxford, along with the older parts of Lawrenceville, is where crawl-space houses on brick or block piers are most common. The wood under those floors is closest to the soil.
Those houses often have dirt floors, older sills and piers that have been in place for decades. A technician checks each of those elements in turn, and the diagram records the condition of each one. Where a repair is needed, the technician says so, and where a treatment is needed, the contract covers it.
What moves the price up or down here?
Clearance, standing water, the size of the crawl space, the number of piers and sills to check, and whether a pest or termite treatment is needed shape the price. No figure is printed on this page, and the price is explained and approved in writing before any work starts.
Low clearance and standing water make the work slower and sometimes require a return visit once conditions change. A larger crawl space has more sills, piers and wood to check, and a dirt floor adds the soil to the record.