Survey of an old basement before a laundry and bathroom go in
Example project

- Home
- 1910s two-story house in Steilacoom with a stone and brick foundation and a newer boiler
- Original request
- Add a laundry room and a bathroom in the basement
- Testing
- About 10 samples from the old partition wall, the ceiling above it, the floor paint and the window putty
- Found
- Asbestos in the plaster patching on the old partition wall
- Clear
- No asbestos in the stone and brick walls, the mortar, the floor paint or the newer pipe jackets
- Timeline
- One visit by the inspector, then a written report within a few days
- Estimated testing cost
- $750
Scope of work
A visit by an accredited inspector, about ten small samples with each spot patched, lab fees and a written report with quantities the plumber and the demolition crew can use. Removal of the positive plaster is priced separately.
Project overview
In this example, the owners of a 1910s house in Steilacoom want a laundry room and a bathroom in the basement. The plumber will cut the concrete floor and open the old partition wall, so the owners ask for a survey first.
Only the plaster patching on the old partition tests positive. The stone and brick walls, the floor paint and the newer pipe jackets are clear, so the removal is one wall and the plumber knows what to leave closed.
The goal
The goal is a short list of what the basement work would disturb, with one wall to clear before the plumber starts.
Process
- Before the visit Photos and a rough plan of the new rooms, so the inspector samples only what the work will touch.
- Visit About ten samples from the partition, the ceiling, the floor and the windows, each bag labeled.
- A few days later Lab results and a written report with the positive wall measured.
- Then The positive plaster is priced and removed before the plumber starts cutting.
Planning right
- Old houses get a different answer in each room, so sample every material the plan will cut.
- Give the plumber and the electrician a copy of the report before they open anything.
- Pipe jackets and boiler parts replaced in a later update are sampled too, not assumed clear.
- A wall or floor left closed and untouched can stay as it is.
