How much does radon mitigation cost in Iowa City?
Short answer: Most Iowa City homes are mitigated for $1,200 to $2,800. Slab-on-grade homes with a single suction point are at the low end; multi-zone basements, crawlspaces, or homes that need exterior venting run higher.
In Iowa City and the surrounding Iowa markets, a typical radon mitigation install costs between $1,200 and $2,800, with most jobs landing between $1,500 and $2,200.
What pushes the price up:
- Multiple foundation zones (a slab garage attached to a basement, for example) — each zone may need its own suction point
- Crawlspace + slab combination — requires both a membrane and sub-slab system
- Difficult fan placement — when there's no good attic or exterior wall location, exterior-mounted systems with extended pipe runs cost more
- Sump pit retrofits — sealing an active sump and tying it into the system adds labor
What keeps the price down:
- Single foundation type (basement only, slab only)
- Existing radon vent stack (some Iowa City homes built after 2009 have passive stubs that just need a fan added — these can run as low as $700)
- Standard fan-in-attic placement — easiest and cleanest install
Most reputable mitigators in Iowa City include the post-install retest in the price. Be wary of quotes that don't.