Radon Mitigation Systems in Waterloo & Cedar Falls

A radon mitigation system is a permanent fix: a sealed pipe from beneath your foundation to above your roofline, with an inline fan maintaining constant suction so soil gas is drawn out before it enters your home. Installed and verified correctly, it takes a house from any starting number to below the EPA action level of 4.0 pCi/L — usually in one day.

We’re a local radon referral service. Call or submit the form and we’ll connect you with a certified radon professional serving Black Hawk County. There’s no charge to you for the referral.

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Sub-Slab Depressurization: the Standard Fix

Nearly every mitigation system in the Cedar Valley is some form of sub-slab depressurization. A hole is cored through the basement slab, a suction pit is excavated beneath it, and PVC pipe runs from that pit up through the house (or along an exterior wall) to a fan that vents above the eave. The fan runs continuously and quietly, creating a pressure field under the slab so radon flows to the pipe instead of up through cracks, joints, and openings.

Variations fit different foundations: drain-tile suction where a home has interior or exterior drain tile, sump-pit suction using a sealed sump lid, and block-wall suction for the hollow concrete-block foundations common in Waterloo’s older housing stock. Many homes near downtown Waterloo date to the early 1900s, and their block walls can act as radon pathways themselves — the glacial soil under the Cedar Valley changes how radon moves, and an experienced installer will pick the suction strategy to match.

What a Proper Installation Includes

A proper job includes sealing of accessible slab cracks and openings, a system label, a u-tube manometer showing the fan is pulling, electrical work done to code, and — non-negotiably — a post-installation retest confirming the number actually dropped below 4.0 pCi/L. Iowa HHS endorses the national ANSI/AARST installation standards, and Iowa requires state certification for anyone doing this work for pay. If a bid skips the retest, that tells you something.

Cost in the Cedar Valley

Typical range: $800–$2,500. A straightforward sub-slab system on a single-slab basement usually runs $1,000–$1,500. Cost drivers are the number of suction points, foundation type (block walls and crawl space combinations cost more), pipe routing (interior routes through a closet or garage cost more than exterior runs but look better and stay warmer), and fan size.

New Construction Is Cheaper

If you’re building, radon-resistant new construction (passive piping installed during the build) costs a fraction of retrofitting and can be activated with a fan later if needed. See our commercial and new construction page.

Ready to Fix Your Number?

Tell us about your house and we’ll connect you with a certified radon mitigation professional serving Black Hawk County. No charge for the referral.

We’re a local radon referral service. Call or submit the form and we’ll connect you with a certified radon professional serving Black Hawk County. There’s no charge to you for the referral.

Please enable JavaScript in your browser to complete this form.

Name *

First

Last

Phone *

Street Address

Address Email Street

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What do you need?Radon TestingRadon MitigationNot sure yet

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