Basement floor tile lifted where a radon system will be installed
Example project
- Home
- 1950s one-story house in Columbia Heights with a tiled basement family room
- Original request
- Install a radon system after a high radon test
- Testing
- The 9-inch tile and the black mastic under it sampled apart by an MDH-certified inspector
- Found
- Asbestos in the tile and in the mastic
- Area
- About 80 sq ft along the back wall and around the sump
- Work
- Tile lifted whole where it releases, the mastic taken up wet
- Timeline
- Five-day notice, then one working day
- Cost
- $2,050
In this example, a radon test in a 1950s house in Columbia Heights comes back high. The radon contractor will drill a suction hole through the basement slab near the sump and seal the joint where the floor meets the wall, and old 9-inch tile covers that whole strip.

