Radon Testing & Mitigation in Altoona, WI
Altoona's housing mix runs from older homes near North River Road and Spooner Avenue to the newer River Prairie subdivisions and the County Highway Q corridor build-out. Eau Claire County is EPA Zone 1, and Altoona's newer construction tests as high as the older homes — sometimes higher, because tighter envelopes hold soil gas in.
Altoona neighborhoods served
- River Prairie (newer slab-on-grade and basement construction)
- North River Road area (mid-century basements)
- Spooner Avenue corridor
- Highway Q / Highway 53 buildout
- Lake Altoona shoreline homes
- Eastridge area
What's typical here
Newer Altoona homes mitigate cleanly with a standard single-point active sub-slab system. Pea-gravel subbase under most newer slabs means a single suction point pulls the whole footprint. Most installs in River Prairie or off Highway Q finish in four hours, with the post-mitigation retest scheduled to start the next day. See radon mitigation for system scope and pricing.
Hidden discharge routing
Altoona homeowners frequently ask whether the system can be routed through interior chases instead of running visible PVC up an exterior wall. On most newer two-stories, yes — the suction pipe goes up through a closet, into the attic, and the fan + discharge stack terminate on the back side of the roof. Older homes with no usable interior chase get exterior PVC, painted to match siding when requested.
Need a radon test or mitigation system in the Chippewa Valley?
Same-week appointments are typical. Real-estate-deadline tests can usually be slotted in 24–48 hours.
Frequently asked questions
Why does new construction in Altoona test high?
Tighter envelopes are the main reason. Modern Altoona homes are well-sealed against air infiltration — which is good for energy bills and bad for radon, because the same tight construction holds soil gas in. Most new River Prairie homes that test high run 5–9 pCi/L.
Is mitigation easier in newer Altoona slabs?
Yes. Newer slabs in the River Prairie and County Highway Q subdivisions sit on washed pea-gravel subbase. A single suction point reliably depressurizes the entire slab. Most of these installs finish in four hours.
Can the discharge stack be hidden?
Mostly yes. On a newer two-story Altoona home, the suction pipe can usually be routed inside an interior chase or finished closet up through the attic, with the fan and discharge on the back side of the house. Visible exterior PVC is avoided when interior chase access exists.