--- title: "How to Find a Radon Expert in Canonsburg, PA: Testing, Mitigation & Cost Guide | Radon Roster" description: "Canonsburg, PA radon guide: 29% of 9,725 basement tests at or above 4 pCi/L (median 2.6). How to verify DEP certification, questions to ask, typical costs and real estate tips." canonical: https://radonroster.com/pa/city/canonsburg-pa/radon-guide/ --- [Pennsylvania](https://radonroster.com/)›[Cities](https://radonroster.com/pa/cities/)›[Canonsburg, PA](https://radonroster.com/pa/city/canonsburg-pa/)›Radon guide # How to find a radon expert in Canonsburg, PA Canonsburg tests lower than much of Pennsylvania, with **29%** of 9,725 basement tests at or above 4 pCi/L. That still leaves 2,823 tests over the action level, so a low average doesn't clear any single house. That's below Washington County as a whole (34%) and below the statewide share (37%). The median Canonsburg result (2.6 pCi/L) is below the 4 pCi/L line; it is still in the 2-4 pCi/L range where EPA says to consider fixing. The Washington County median is 2.9 pCi/L. Source: computed 2026-10-11 from PA DEP's [Radon Test Results](https://data.pa.gov/Energy-and-the-Environment/Radon-Test-Results-September-1986-Current-Annual-C/vkjb-sx3k) (data.pa.gov, public domain), using tests with a Canonsburg municipality/mailing name. Counts tests, not homes, and includes repeat and post-mitigation tests. ## Canonsburg at a glance Canonsburg**29%** Washington Co.**34%** Statewide**37%** Share of basement tests ≥ 4 pCi/L **2.6**median pCi/L **9,725**tests on record **#23**of 33 guide cities [Get free quotes](https://radonroster.com/get-quotes/?city=canonsburg) [Browse all Canonsburg radon firms](https://radonroster.com/pa/city/canonsburg-pa/) · [Washington County](https://radonroster.com/pa/county/washington/) ## Canonsburg compared with other PA cities Among the 33 Pennsylvania cities with guides on Radon Roster, Canonsburg ranks **#23** by share of basement tests at or above 4 pCi/L. About 2,823 Canonsburg basement tests in DEP's records were at or above 4 pCi/L. A DIY or certified test is cheap insurance even where the average is low. Nearby city guides: [Doylestown](https://radonroster.com/pa/city/doylestown-pa/radon-guide/) · [Pittsburgh](https://radonroster.com/pa/city/pittsburgh-pa/radon-guide/) · [Media](https://radonroster.com/pa/city/media-pa/radon-guide/) · [Phoenixville](https://radonroster.com/pa/city/phoenixville-pa/radon-guide/) ## What a typical Pennsylvania radon system install involves Most systems use **active soil depressurization** ([EPA Consumer's Guide to Radon Reduction](https://www.epa.gov/radon/consumers-guide-radon-reduction-how-fix-your-home)). The installer drills a suction point through the basement slab (or seals a crawlspace with a membrane), runs PVC pipe to an inline fan, and vents the exhaust above the roofline. Then they seal major openings and add a pressure gauge. A follow-up test should confirm the level dropped. PA DEP describes the confirm-then-mitigate steps on [PA DEP: Radon in the Home](https://www.pa.gov/agencies/dep/programs-and-services/radiation-protection/radon-division/radon-in-the-home). ## Radon mitigation cost: what Canonsburg homeowners can expect | Item | Typical range (national) | | --- | --- | | Mitigation system installed | $786-$1,274, average about $1,028 (reported range $395-$2,453) | | Professional radon test | $150-$800 | Source: [HomeAdvisor cost guide](https://www.homeadvisor.com/cost/environmental-safety/remove-radon-gas/). These are national figures, not local quotes. Prices depend on foundation type, the number of suction points and pipe routing. Try the [estimate tool](https://radonroster.com/radon-mitigation-cost/). ## Nearest certified radon firms Nearest DEP-certified firms: **4** based in Canonsburg (0 mitigation), **3** elsewhere in Washington County (1 mitigation), and **12** mitigation firms in neighboring counties. ### Home Radon Pros ✓ PA DEP certifiedMitigationTesting Venetia9 certified people #### Address * 549 Mccombs Rd, Venetia, PA * ✉ [bkail@homeradonpros.com](mailto:bkail@homeradonpros.com) * ✉ [jlanham@homeradonpros.com](mailto:jlanham@homeradonpros.com) * [homeradonpros.com](https://www.homeradonpros.com/) #### Certified individuals * Anesin, Richard (mitigation #7704) * Broomhead, Steven (mitigation #7673) * Kail, Alexander (mitigation #7703) * Kail, William (testing #3238, mitigation #3238) * Kail, William Jr. (mitigation #7674) * Lanham, Joshua (mitigation #7602) * Mcauley, Daniel (mitigation #7600) * Mihalik, Joseph (mitigation #7264) * Moon, Ethan (mitigation #7718) #### DEP cert IDs mitigation #3238 · mitigation #3476 · mitigation #7264 · mitigation #7600 · mitigation #7602 · mitigation #7673 · mitigation #7674 · mitigation #7703 · mitigation #7704 · mitigation #7718 · testing #3238 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf) [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyTest.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F3238) [**Call** (412) 584-0799](tel:4125840799) [See all firms near Canonsburg →](https://radonroster.com/pa/city/canonsburg-pa/) ## Buying or selling in Canonsburg? Radon timing tips * Pennsylvania sellers must give buyers a property disclosure statement before an agreement of sale is signed. The Real Estate Commission's minimum form asks whether the seller knows of hazardous substances "including... radon" and whether the property has been tested ([49 Pa. Code § 35.335a](https://www.pacodeandbulletin.gov/secure/pacode/data/049/chapter35/s35.335a.html); [68 Pa.C.S. Chapter 73](https://www.legis.state.pa.us/WU01/LI/LI/CT/HTM/68/00.073..HTM)). * Sellers aren't required to test, but must not hide known defects (68 Pa.C.S. § 7308). * Real estate radon tests by certified testers follow DEP anti-tampering rules, including a signed non-interference agreement ([25 Pa. Code Chapter 240](https://files.dep.state.pa.us/RadiationProtection/BureauOfRadiationProtection/BRPPortalFiles/Chapter_240_2015-04-23.pdf)). Book the test early in the inspection contingency window, because short-term tests run at least 2 days plus lab time. * If a result is high near closing, ask certified mitigators for written quotes. Buyers and sellers often negotiate who pays for a system. General information, not legal advice. ## How to verify a Canonsburg radon contractor's PA DEP certification 1. Check the name against DEP's current certified mitigation and testing lists in the [PA DEP Radon Services Directory](https://www.pa.gov/agencies/dep/programs-and-services/radiation-protection/radon-division/radon-services-directory). The lists are updated periodically, and ours were retrieved 2026-10-11. 2. Ask for the DEP certification number and photo ID. Pennsylvania requires anyone doing radon testing, mitigation or lab work for the public to be DEP-certified ([25 Pa. Code Chapter 240](https://files.dep.state.pa.us/RadiationProtection/BureauOfRadiationProtection/BRPPortalFiles/Chapter_240_2015-04-23.pdf)). 3. Still unsure? Call the PA DEP Radon Hotline at 800-237-2366. Every firm listed for Canonsburg on Radon Roster shows its DEP IDs and a link to the source list. ## Questions to ask a mitigator before you sign * Will you do diagnostic (sub-slab suction) testing before choosing fan size and suction points? * Where will the pipe run (inside or outside), and where will the fan and exhaust go? * What post-mitigation level do you guarantee, and what happens if the retest is high? * Who does the follow-up test, and is it an independent certified tester? * What warranty covers the fan and the work, and is it transferable if I sell? * Will you seal the sump, cracks or floor-wall joints, and is that in the quote? ## Frequently asked questions **How do I find a certified radon expert in Canonsburg, PA?** Use a firm on PA DEP's certified lists. Radon Roster lists 4 DEP-certified firms based in Canonsburg and 3 more in Washington County. Confirm any name in the [PA DEP Radon Services Directory](https://www.pa.gov/agencies/dep/programs-and-services/radiation-protection/radon-division/radon-services-directory) or call 800-237-2366. **Should I test if Canonsburg has lower radon than other PA towns?** Yes. Even here, 2,823 basement tests in DEP's records were at or above 4 pCi/L. EPA recommends every home be tested. **Is radon common in Canonsburg?** In PA DEP's test records, 29% of 9,725 basement tests with a Canonsburg address were at or above 4 pCi/L (median 2.6 pCi/L). Results vary house to house, so only a test tells you your level. **How much does radon mitigation cost in Canonsburg?** We don't have Canonsburg-specific price data. A national cost guide puts typical installs at $786-$1,274 (average about $1,028). Get written quotes from certified local mitigators. **Do I need a radon test when buying a home in Pennsylvania?** It isn't required by state law. The seller's disclosure form asks about known radon and past testing, and many buyers order a test during the inspection period. Real estate tests by certified testers follow DEP anti-tampering rules. **How long does a radon test take?** Short-term tests run 2 to 7 days. Long-term tests run more than 90 days. PA DEP suggests confirming a high short-term result before deciding on mitigation. **Want firms to contact you?**One request to Canonsburg mitigators[Request quotes](https://radonroster.com/get-quotes/?city=canonsburg) Our advice ## Before you hire in Canonsburg 1. Ask for the DEP cert ID and match it to the listing. 2. Get at least two written quotes for mitigation. 3. Retest after the system is installed. PA Radon Hotline **800-237-2366** Typical mitigation cost $786–$1,274 National range (HomeAdvisor). No local price data; quotes vary by foundation type. [Estimate your cost →](https://radonroster.com/radon-mitigation-cost/) ## Want firms to contact you? Send one request to certified mitigators who serve Canonsburg. [Request quotes](https://radonroster.com/get-quotes/?city=canonsburg)