I'm trying to figure out the best lab to test for asbestos in my house built in 1945, which I suspect has lathe and plaster walls. I attempted the pushpin test, but I'm unsure about the sampling process since drywall and plaster might have multiple layers. Would it be wise to cut into the wall in a closet with a hole saw to collect a sample? I plan to spray it with water, wear PPE, and isolate the area to minimize dust. Any recommendations?
2 Answers
I recently used an asbestos testing kit I bought on Amazon for testing attic insulation. The lab was great—they not only confirmed if it contained asbestos, but they also identified the material! The best part? No hidden lab fees unless you send in multiple samples. For most minor renovations, like what you're planning, you might be fine letting a pro handle it. As long as the walls aren’t disturbed, they shouldn’t be a problem just sitting there.
What's your plan? If you're just doing electrical work, you might not need extensive testing. It sounds like you're mainly rewiring, which may involve cutting some walls, but unless you're planning major renovations, it might be overkill. I wouldn't worry too much about confirmation unless you're doing an abatement.

Exactly! Just make sure to wet the plaster when you're cutting it to keep the dust down. That's usually enough, unless you hit something that really looks suspect.