How long does a radon mitigation install take?
Short answer: Most Iowa City radon mitigation installs are completed in a single day, typically 4 to 8 hours. The post-install retest takes another 48 hours but doesn't require any disruption to your household.
A standard sub-slab depressurization install in a Iowa City home is almost always a single-day job — most are wrapped up in 4 to 8 hours.
The general sequence:
- Walk-through and diagnostics (30 minutes) — confirm foundation type, identify the best suction point, plan the pipe route
- Foundation crack sealing (30–60 minutes) — seal visible cracks and the sump pit if applicable
- Coring and suction point (45 minutes) — cut the 4" hole through the slab and prep the suction pit
- Pipe routing (2–4 hours) — install the PVC vent pipe through the home to the roof
- Fan installation and electrical (1 hour) — mount the inline fan and wire it to a dedicated circuit or existing outlet
- System startup and manometer install (15 minutes)
- 48-hour post-install monitor — left in place but doesn't require anyone to be home
You'll hear a small amount of noise from the coring (about an hour) and you'll have technicians in and out for the day. Otherwise it's not particularly disruptive — most homeowners go about their day.