Sub-slab mitigation is the most common radon system in Des Moines: core a hole through the basement slab, dig a suction pit, seal in a PVC riser, and let a continuously running fan pull soil gas from under the concrete before it can enter the house.
Reasons to schedule this service
This service may be the right fit when one of these situations sounds familiar:
- radon enters through the basement slab
- a sump and drain tile system need coordination
- a finished basement needs careful routing
What matters for Des Moines properties
How well one suction point covers a Des Moines footprint depends on what the builder left under the slab — clean gravel spreads suction widely, compacted clay barely at all. Additions and garage conversions with separately poured slabs frequently need their own point, which is a layout question the estimate visit should answer explicitly.
What affects the estimate
- slab thickness
- aggregate under slab
- sump pit
- finished walls
- exterior route
How the work usually goes
The slab work goes step by step:
- Test Result Review: Review the radon test result, test date, foundation layout, basement use, and any real-estate deadline.
- Foundation And Sump Check: Check slab areas, sump pits, drain tile, crawl spaces, pipe routes, fan locations, and discharge options.
- System Design Planning: Plan the mitigation system, sealing details, electrical needs, fan placement, and retest timing.
- Pipe Fan And Sealing Work: Install or repair the pipe, fan, suction point, sump cover, crawl-space barrier, or sealing work.
- Retest And Maintenance Guidance: Review manometer readings, labels, maintenance notes, and when the home should be tested again.
