Real homes. Real numbers. Real fixes.
Case studies and walk-throughs from radon mitigation jobs across Greater Cincinnati. Specific addresses anonymized; specific numbers preserved.
How-to · 5 min read
Cincinnati January Radon Action Month: the homeowner checklist
Ohio Department of Health partners with Hamilton County Public Health, Butler County General Health, Warren County Health District, and Clermont County Public Health to distribute free or low-cost radon test kits during January Radon Action Month. Here is the homeowner checklist for the 2027 round and what to do with the result.
Published September 19, 2026
Case study · 6 min read
Post-spray-foam radon retest: what changed on a typical Hyde Park home
A 1930 Hyde Park home had a working radon mitigation system (post-mitigation 1.4 pCi/L) and then added closed-cell foam at the rim joist and open-cell at the attic floor. The retest 60 days later showed a meaningful shift. Here is what the retest measured and how the system was re-tuned.
Published August 22, 2026
How-to · 5 min read
Cincinnati 2026-2027 school year radon checklist for parents
Ohio law requires public schools to test for radon under the Ohio Department of Health Indoor Radon Program. Here is what Cincinnati parents should ask the school district before the 2026-2027 academic year, what the typical findings look like, and what your options are if your child's classroom tests above the action level.
Published August 8, 2026
How-to · 4 min read
Cincinnati summer radon testing: when a July reading is the right read
Cincinnati radon equilibrium shifts noticeably between heating-season and cooling-season air-pressure dynamics. Here is when a July or August test produces the most actionable result, and when to wait for the next heating season instead.
Published July 11, 2026
How-to · 5 min read
What the 12-month verification retest typically shows for a Cincinnati radon system
Industry-standard outcomes for a properly-installed Hamilton, Butler, Warren, or Clermont county radon mitigation: what the 12-month follow-up retest catches, what predicts a clean reading, and what to do if the number drifts.
Published June 27, 2026
Case study · 6 min read
An FHA-financed Mason buyer with a 14-day window: how the radon contingency closed on time
An FHA buyer in Mason got a 5.1 pCi/L radon test on day 4 of the inspection contingency. FHA underwriting added 3 extra requirements compared to a conventional loan. The closing happened on day 14. Here is the day-by-day timeline.
Published June 20, 2026 · Mason
Case study · 5 min read
A Madeira passive-stack activation: why $700 was the right answer over $2,000 alternatives
A Madeira homeowner got three quotes ranging from $700 to $2,200 for a radon mitigation that all three contractors agreed her home needed. Here is why the cheapest quote was the right one and what the other two were actually proposing.
Published June 13, 2026 · Madeira
Case study · 6 min read
A Norwood 1924 stone-rubble basement: when sealing is most of the job
A 1924 Sears-kit foursquare in Norwood tested at 13.6 pCi/L with hundreds of unsealed mortar joints between limestone-rubble blocks. The fix took two days and the sealing portion ran 60% of the labor. Here is how the mitigator approached it.
Published June 6, 2026 · Norwood
Case study · 6 min read
A multi-zone Indian Hill custom build: when one suction pit is not enough
A 2003 5,200 sqft Indian Hill custom home with a full basement under the main wing and a separate crawl space under the master suite read 9.1 pCi/L. The mitigation needed two zones, two suction points, and two fans. Here is the design.
Published May 30, 2026 · Indian Hill
Case study · 6 min read
An Anderson Township hillside basement: how foundation drainage interacts with radon mitigation
A 1988 walkout-basement home on a 12% slope read 7.4 pCi/L. The mitigation had to coordinate with the existing French drain and sump pump. Here is what got found, what got built, and what changed.
Published May 23, 2026 · Anderson Township
Case study · 5 min read
A West Chester new build with a passive radon stack: when fan-only activation is the right answer
A 2018 West Chester home tested at 5.2 pCi/L despite having a builder-installed passive radon stack. The fix took 3 hours and cost $850. Here is the install and the math against full-system alternatives.
Published May 16, 2026 · West Chester
Case study · 6 min read
A Loveland slab with a crawl-space addition: when one mitigation strategy is not enough
A 1995 Loveland ranch had a 1998 master-suite addition with a crawl space below it. Initial test came back at 6.8 pCi/L. The mitigator had to design two systems sharing a single fan. Here is the layout, the build, and the post-mitigation reading.
Published May 9, 2026 · Loveland
Case study · 6 min read
A Hyde Park basement that tested at 14 pCi/L: what happened next
A 1924 four-square in Hyde Park measured 14.2 pCi/L on the homeowner's first 48-hour test, more than triple the EPA action level. Here is the full sequence of what got found, what got installed, and what the post-mitigation numbers came back at.
Published May 8, 2026 · Hyde Park
Case study · 5 min read
Closing in 8 days with a failed radon test: a real-estate timeline
Buyer's inspection in Mariemont came back at 8.7 pCi/L on day 12 of a 14-day inspection contingency window. The realtor reached our dispatch line at 4:30 PM. Here is what the next 8 days looked like, day by day.
Published May 7, 2026 · Mariemont
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