Radon mitigation in the Alle-Kiski Valley
Got a high radon test? Tell us your number and your town. We're a free referral service: we'll pass your request to one PA DEP-certified mitigator who works in your area, for a free estimate.
What does my number mean?
Results are in picocuries per liter (pCi/L). EPA's action level is 4.0, and EPA suggests considering a fix between 2 and 4.
Pennsylvania has one of the most serious radon problems in the country
That's PA DEP's own description. Radon comes up from the ground, you can't see or smell it, and a test is the only way to know.
From test result to a fixed basement
Tell us about your test
Your result, your town, and whether you're buying or selling. It takes about a minute.
We match you with one certified mitigator
A PA DEP-certified mitigator who works in your town. Your request goes to that one company, not to a list of contractors.
Get a free estimate
They contact you, look at your basement and give you a written price. You decide whether to go ahead.
How a radon system works
EPA calls active sub-slab suction the most common fix. A small fan pulls radon from under your basement floor and vents it outside before it gets into the house.
- 1
Suction point. A hole through the basement slab with a small pit dug out underneath. The pipe draws air from the gravel and soil below the floor.
- 2
Sealing. Large cracks, gaps and the sump pit lid get sealed so the fan pulls from under the slab instead of from your basement.
- 3
U-tube gauge. The manometer on the pipe. PA DEP says uneven fluid levels mean the fan is running; even levels mean it may not be working.
- 4
Radon fan. Mounted outside the living space, on an outside wall or in the attic. It runs all the time.
- 5
Vent. The pipe releases the radon above the edge of the roof and away from windows, where it spreads out in open air.
After the installation, the mitigator should retest once the system has run for at least 24 hours. PA DEP suggests follow-up tests every two years, preferably during the heating season.
What it costs
HomeAdvisor's national figures, as reported by Bob Vila in 2022, put a typical radon system at $771 to $1,185. Harder houses cost more: block foundation walls and crawl spaces can run up to about $3,000. HomeAdvisor puts the fan's electricity at $30 to $300 a year. The written estimate for your house is the number that counts.
Buying or selling a house?
Radon tests often happen during the home inspection, on a deadline. The Allegheny County Health Department notes that a radon result at the level of concern must be disclosed to future buyers. Put your closing date in the form and we'll mark your request as urgent.
Towns we cover
The Alle-Kiski Valley and the towns around it. Don't see yours? Send a request anyway and we'll tell you whether we can help.
Westmoreland County
- Lower Burrell
- New Kensington
- Arnold
- Upper Burrell
- Allegheny Township
- Vandergrift
- East Vandergrift
- Oklahoma
- Hyde Park
- Washington Township
- Murrysville
Allegheny County
- Natrona Heights (Harrison Twp.)
- Tarentum
- Brackenridge
- Fawn Township
- Frazer Township
- Cheswick
- Springdale
- Harmar
- Oakmont
- Plum
- West Deer
- East Deer (Creighton)
- Indiana Township
Armstrong County
- Freeport
- Leechburg
- Apollo
- North Apollo
- Gilpin Township
- Parks Township
- South Buffalo Township
PA DEP's October 2026 county list of certified radon mitigators has no entries for Armstrong County. We'll try to match you with a certified mitigator from a neighboring county who works in your town, and we'll tell you if we can't.
Butler County
- Buffalo Township (Sarver)
Common questions
Is the estimate really free?
Our service is free for homeowners, and we only refer you to mitigators who give free estimates. You never pay us anything.
Who are you?
Alle-Kiski Radon Help is a referral service run by Hapetrails LLC. We are not a radon testing or mitigation company and we don't do radon work ourselves. We connect homeowners with independent mitigators certified by PA DEP, and those mitigators may pay us for referrals. We're not affiliated with PA DEP or any government agency.
How do I know the mitigator is certified?
Pennsylvania certifies radon mitigators through DEP, which posts an updated list every month, sorted by name and by county. You can also ask to see the installer's current DEP ID card or certificate.
Do I need a second test first?
PA DEP suggests confirming a result above 4 pCi/L with a second test before you fix it. If you're on a home-sale deadline, talk it over with your agent and the mitigator.
How long does an installation take?
PA DEP says an installation should take less than a day. The installer should retest once the system has run for at least 24 hours.
Will a system work in an older house?
Most houses can be fixed. Stone or block foundation walls, crawl spaces and additions can need extra suction points or more sealing, and the mitigator will explain that in the estimate.
What does the gauge on the pipe mean?
It's a U-tube manometer. PA DEP says uneven fluid levels mean the fan is running, and even levels mean it may not be working.
What happens to my information?
We share your request with one certified mitigator who serves your area so they can contact you, and that mitigator may pay us for the referral. We don't sell your information to marketers.
Check any installer on PA DEP's list of certified radon mitigators, or call the DEP Radon Hotline at 1-800-237-2366.