--- title: "Radon Testing & Mitigation in West Chester, PA | Certified Pros & Local Data" description: "24% of 45,366 basement radon tests in West Chester, PA were at or above 4 pCi/L (PA DEP data). Find DEP-certified radon testers and mitigators nearby." canonical: https://radonroster.com/pa/city/west-chester-pa/ --- [Pennsylvania](https://radonroster.com/)›[Cities](https://radonroster.com/pa/cities/)›West Chester # Radon testing & mitigation in West Chester, PA West Chester sits in Chester County. In the PA DEP test dataset, 45,366 basement radon tests carry a West Chester address. Their median was **1.9 pCi/L**, and **24%** came in at or above EPA's 4 pCi/L action level. Across all of Chester County it was 31%, and statewide 37%. Even where the average is lower, neighboring houses can test very differently, so every home should be tested. ## West Chester radon test data West Chester**24%** Chester Co.**31%** Statewide**37%** Share of basement tests ≥ 4 pCi/L **1.9**median pCi/L **45,366**tests on record **2**firms based here City figures come from the municipality / mailing-address name in [PA DEP's Radon Test Results](https://data.pa.gov/Energy-and-the-Environment/Radon-Test-Results-September-1986-Current-Annual-C/vkjb-sx3k) (computed 2026-10-11). They count tests, not homes. Below are the PA DEP-certified firms with a business address in West Chester, then other firms in Chester County, then mitigation firms in the counties next door. Certified pros often travel, so ask each one whether they cover your street. [**Read the West Chester radon hiring guide →**](https://radonroster.com/pa/city/west-chester-pa/radon-guide/) (how to verify certification, questions to ask, costs, FAQ) ## Firms based in West Chester (2) [Mitigation1](#local-mitigation)[Testing1](#local-testing)Labs 0Ordered by town, then name · never by payment ## Radon mitigation (reduction systems) (1 firm) Firms certified to install radon reduction systems. Firms that also test are shown here once. ### Safe Shelter Environmental ✓ PA DEP certifiedMitigationTesting West Chester6 certified people #### Address * 7 S Wayne St, West Chester, PA * ✉ [joe@safeshelter.com](mailto:joe@safeshelter.com) * [safeshelter.com](https://safeshelter.com/) #### Certified individuals * Batten Jr, Joseph (testing #3525, mitigation #3525) * Fisicaro, Jesse (mitigation #7713) * Fletcher, Steven (mitigation #7715) * Grant, Joseph (mitigation #7717) * Hughes, Kareem (mitigation #7716) * Tavoni, Matthew (mitigation #7714) #### DEP cert IDs mitigation #0207 · mitigation #3525 · mitigation #7713 · mitigation #7714 · mitigation #7715 · mitigation #7716 · mitigation #7717 · testing #0207 · testing #3525 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=F0207) [**Call** (610) 594-0350](tel:6105940350) ## Radon testing (1 firm) ### Inspection Service ⚠ Name may be cut off in DEP records ✓ PA DEP certifiedTesting West Chester1 certified person #### Address * 1240 West Chester Pike, Suite, West Chester, PA * ✉ [tombart@isgroup-llc.com](mailto:tombart@isgroup-llc.com) * [isgroup-llc.com](https://isgroup-llc.com/) #### Certified individuals * Farrell, Jason (testing #8877) #### DEP cert IDs testing #8877 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/WebTestAlpha.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F8877) [**Call** (484) 324-4500](tel:4843244500) ## Elsewhere in Chester County (16) [Mitigation2](#county-mitigation)[Testing14](#county-testing)Labs 0Ordered by town, then name · never by payment ## Radon mitigation (reduction systems) (2 firms) Firms certified to install radon reduction systems. Firms that also test are shown here once. ### Conrad, Spencer ✓ PA DEP certifiedMitigationTesting Phoenixville1 certified person #### Address * 116 Gay Street #186, Phoenixville, PA * ✉ [spencerconradinspect@gmail.com](mailto:spencerconradinspect@gmail.com) #### Certified individuals * Conrad, Spencer (testing #3020, mitigation #3020) #### DEP cert IDs mitigation #3020 · testing #3020 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=F3020) [**Call** (570) 573-8159](tel:5705738159) ### Gutridge Inspections ✓ PA DEP certifiedMitigationTesting Pottstown1 certified person #### Address * 1614 Laurelwood Rd, Pottstown, PA * ✉ [office@gutridgeinspections.com](mailto:office@gutridgeinspections.com) * [gutridgeinspections.com](https://www.gutridgeinspections.com/) #### Certified individuals * Gutridge, Charles (testing #2973, mitigation #2973) #### DEP cert IDs mitigation #2973 · testing #2973 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=F2973) [**Call** (610) 385-3339](tel:6103853339) ## Radon testing (14 firms) ### Homer Inspection Services ✓ PA DEP certifiedTesting Atglen4 certified people #### Address * 501 York Rd, Atglen, PA * ✉ [office@homerinspect.com](mailto:office@homerinspect.com) * [homerinspect.com](https://www.homerinspect.com/) #### Certified individuals * Culcasi, Ian (testing #9127) * Homer, Ernest (testing #3196) * Misner, Christopher (testing #9126) * Schweikert, Joanne (testing #9128) #### DEP cert IDs testing #3196 · testing #3733 · testing #9126 · testing #9127 · testing #9128 Source: [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=F3196) [**Call** (610) 314-6155](tel:6103146155) ### Rafiq, Hamid ✓ PA DEP certifiedTesting Berwyn1 certified person #### Address * Po Box 681, Berwyn, PA * ✉ [inspections@tek21solutions.com](mailto:inspections@tek21solutions.com) #### Certified individuals * Rafiq, Hamid (testing #3552) #### DEP cert IDs testing #3552 Source: [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=F3552) [**Call** (484) 999-0353](tel:4849990353) ### Arms, Jr., Jeffrey ✓ PA DEP certifiedTesting Chester Springs1 certified person #### Address * 2342 Miller Rd, Chester Springs, PA * ✉ [jeff@armshomeinspection.com](mailto:jeff@armshomeinspection.com) * [armshomeinspection.com](https://armshomeinspection.com/) #### Certified individuals * Arms, Jr., Jeffrey (testing #2925) #### DEP cert IDs testing #2925 Source: [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=F2925) [**Call** (610) 850-5528](tel:6108505528) ### Dunckley, Edwin ✓ PA DEP certifiedTesting Chester Springs1 certified person #### Address * 1357 Elbow Ln, Chester Springs, PA * ✉ [ed@chestercountyhomeinspections.com](mailto:ed@chestercountyhomeinspections.com) #### Certified individuals * Dunckley, Edwin (testing #3253) #### DEP cert IDs testing #3253 Source: [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=F3253) [**Call** (484) 212-1600](tel:4842121600) ### Gordon, Margie L. ✓ PA DEP certifiedLabTesting Coatesville1 certified person #### Address * 125 Nevins Way, Coatesville, PA * ✉ [radonwomen@verizon.net](mailto:radonwomen@verizon.net) #### Certified individuals * Gordon, Margie L. (testing #1627, lab #1627) #### DEP cert IDs lab #1627 · testing #1627 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyLab.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=F1627) [**Call** (610) 857-0206](tel:6108570206) ### Peach Inspections ✓ PA DEP certifiedTesting Coatesville2 certified people #### Address * 120 Cambridge Rd, Coatesville, PA * ✉ [peachinspections@gmail.com](mailto:peachinspections@gmail.com) * ✉ [steve.peachinspections@gmail.com](mailto:steve.peachinspections@gmail.com) #### Certified individuals * Robinson, Amy (testing #8606) * Robinson, Steven (testing #3356) #### DEP cert IDs testing #2288 · testing #3356 · testing #8606 Source: [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=F2288) [**Call** (610) 917-1096](tel:6109171096) ### Labar, James ✓ PA DEP certifiedTesting Downingtown1 certified person #### Address * 246 Snow Ln, Downingtown, PA * ✉ [james.labar@gmail.com](mailto:james.labar@gmail.com) #### Certified individuals * Labar, James (testing #3756) #### DEP cert IDs testing #3756 Source: [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=F3756) [**Call** (610) 909-3649](tel:6109093649) ### Saenz, Mary Ann ✓ PA DEP certifiedTesting Downingtown1 certified person #### Address * 1172 Skelp Level Rd, Downingtown, PA * ✉ [sismoldinspections@gmail.com](mailto:sismoldinspections@gmail.com) #### Certified individuals * Saenz, Mary Ann (testing #3589) #### DEP cert IDs testing #3589 Source: [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=F3589) [**Call** (610) 960-5895](tel:6109605895) ### Stumm, Brian ✓ PA DEP certifiedTesting Downingtown1 certified person #### Address * 1882 Boulder Dr, Downingtown, PA * ✉ [bstumm@abchomeinspections.net](mailto:bstumm@abchomeinspections.net) #### Certified individuals * Stumm, Brian (testing #3181) #### DEP cert IDs testing #3181 Source: [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=F3181) [**Call** (267) 331-0256](tel:2673310256) ### Kerr, Kevin ✓ PA DEP certifiedTesting Honey Brook1 certified person #### Address * 363 Hill Rd, Honey Brook, PA * ✉ [ks-kerr@hotmail.com](mailto:ks-kerr@hotmail.com) #### Certified individuals * Kerr, Kevin (testing #2757) #### DEP cert IDs testing #2757 Source: [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=F2757) [**Call** (610) 324-3064](tel:6103243064) ### Murphy, Stephen ✓ PA DEP certifiedTesting Lincoln Universi1 certified person #### Address * 104 Great Oak Dr, Lincoln Universi, PA * ✉ [stephenjmurphyinc@gmail.com](mailto:stephenjmurphyinc@gmail.com) #### Certified individuals * Murphy, Stephen (testing #3342) #### DEP cert IDs testing #3342 Source: [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=F3342) [**Call** (610) 506-0689](tel:6105060689) ### Errington, Scott ✓ PA DEP certifiedTesting Phoenixville1 certified person #### Address * 128 Sheeder Rd, Phoenixville, PA * ✉ [serrington44@gmail.com](mailto:serrington44@gmail.com) #### Certified individuals * Errington, Scott (testing #3479) #### DEP cert IDs testing #3479 Source: [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=F3479) [**Call** (610) 656-1085](tel:6106561085) ### Keogh, Daniel ✓ PA DEP certifiedTesting Phoenixville1 certified person #### Address * 590 Sandra Ln, Phoenixville, PA * ✉ [sunlightinspect@gmail.com](mailto:sunlightinspect@gmail.com) #### Certified individuals * Keogh, Daniel (testing #2109) #### DEP cert IDs testing #2109 Source: [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=F2109) [**Call** (610) 450-6056](tel:6104506056) ### The Green Valley Group ✓ PA DEP certifiedTesting Unionville2 certified people #### Address * Po Box 242, Unionville, PA * ✉ [kevin@thegreenvalleygroup.com](mailto:kevin@thegreenvalleygroup.com) * [thegreenvalleygroup.com](https://www.thegreenvalleygroup.com/) #### Certified individuals * Dickens, Matthew (testing #8882) * Thompson, Kevin (testing #2736) #### DEP cert IDs testing #2736 · testing #3433 · testing #8882 Source: [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=F2736) [**Call** (610) 347-0620](tel:6103470620) ## Mitigation firms in neighboring counties (16) ### Podolecki, Piotr ✓ PA DEP certifiedMitigationBerks County Alburtis1 certified person #### Address * 11 Timber Dr, Alburtis, PA * ✉ [radongone@ymail.com](mailto:radongone@ymail.com) #### Certified individuals * Podolecki, Piotr (mitigation #2885) #### DEP cert IDs mitigation #2885 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F2885) [**Call** (484) 547-3496](tel:4845473496) ### Rogers, Keith ✓ PA DEP certifiedMitigationBerks County Douglassville1 certified person #### Address * 305 Cameron Dr, Douglassville, PA * ✉ [supremeradon@gmail.com](mailto:supremeradon@gmail.com) #### Certified individuals * Rogers, Keith (mitigation #3540) #### DEP cert IDs mitigation #3540 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F3540) [**Call** (610) 575-2775](tel:6105752775) ### S. J. Watras Inc ✓ PA DEP certifiedMitigationBerks County Boyertown1 certified person #### Address * 32 Indian Ln, Boyertown, PA * ✉ [sjwatras@cocast.net](mailto:sjwatras@cocast.net) #### Certified individuals * Cameron, Paul (mitigation #7579) #### DEP cert IDs mitigation #7579 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F7579) [**Call** (610) 367-5005](tel:6103675005) ### S. J. Watras, Inc. ✓ PA DEP certifiedMitigationTestingBerks County Boyertown3 certified people #### Address * 32 Indian Ln, Boyertown, PA * ✉ [sjwatras@comcast.net](mailto:sjwatras@comcast.net) #### Certified individuals * Berry, James (mitigation #7580) * Watras, Michael (mitigation #7111) * Watras, Stanley J. (testing #1056, mitigation #1056) #### DEP cert IDs mitigation #1056 · mitigation #1057 · mitigation #7111 · mitigation #7580 · testing #1056 · testing #1057 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=F1056) [**Call** (610) 367-5005](tel:6103675005) ### Olinchak, Gary ✓ PA DEP certifiedMitigationDelaware County Crum Lynne1 certified person #### Address * 512 Smiley St, Crum Lynne, PA * ✉ [golinchak@aol.com](mailto:golinchak@aol.com) #### Certified individuals * Olinchak, Gary (mitigation #3003) #### DEP cert IDs mitigation #3003 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F3003) [**Call** (610) 909-4356](tel:6109094356) ### Fritsch, Andrew ✓ PA DEP certifiedMitigationLancaster County Ephrata1 certified person #### Address * 110 S Line Rd, Ephrata, PA * ✉ [andrew@bauderbasement.com](mailto:andrew@bauderbasement.com) * [bauderbasement.com](https://bauderbasement.com/) #### Certified individuals * Fritsch, Andrew (mitigation #3541) #### DEP cert IDs mitigation #3541 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F3541) [**Call** (717) 949-2011](tel:7179492011) ### Jk Mechanical Inc ✓ PA DEP certifiedMitigationTestingLancaster County Willow Street3 certified people #### Address * 202 W Kendig Rd, Willow Street, PA * ✉ [bshimp@jkmechanical.com](mailto:bshimp@jkmechanical.com) * ✉ [serivce@jkmechanical.com](mailto:serivce@jkmechanical.com) * [jkmechanical.com](https://www.jkmechanical.com/) #### Certified individuals * Salvatore, Alexander (mitigation #7729) * Salvatore, Andrew (mitigation #7730) * Shimp, Brian (testing #3747, mitigation #3747) #### DEP cert IDs mitigation #3747 · mitigation #3748 · mitigation #7729 · mitigation #7730 · testing #3747 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=F3747) [**Call** (717) 464-0111](tel:7174640111) ### Rjh Radon Mitigation Inc ✓ PA DEP certifiedMitigationLancaster County Akron2 certified people #### Address * Po Box 91, Akron, PA * ✉ [rjhradonpa@gmail.com](mailto:rjhradonpa@gmail.com) #### Certified individuals * Hoffman, Elliot (mitigation #3058) * Sauder, Keith (mitigation #7582) #### DEP cert IDs mitigation #0565 · mitigation #3058 · mitigation #7582 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F0565) [**Call** (717) 859-6996](tel:7178596996) ### Accurate Radon Control Inc ✓ PA DEP certifiedMitigationTestingMontgomery County Green Lane2 certified people #### Address * Po Box 296, Green Lane, PA * ✉ [dave@accurateradoncontrol.com](mailto:dave@accurateradoncontrol.com) * [accurateradoncontrol.com](https://accurateradoncontrol.com/) #### Certified individuals * Demar, David (testing #2112, mitigation #2112) * Demar, Zachariah (mitigation #7709) #### DEP cert IDs mitigation #2112 · mitigation #2113 · mitigation #7709 · testing #2112 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=F2112) [**Call** (215) 541-1557](tel:2155411557) ### Air Quality Control, Inc. ✓ PA DEP certifiedMitigationMontgomery County King Of Prussia1 certified person #### Address * 630 Freedom Business Ctr, King Of Prussia, PA * ✉ [roger@aqc-radon.com](mailto:roger@aqc-radon.com) * [aqc-radon.com](http://www.aqc-radon.com/) #### Certified individuals * Burens, Jr., Roger (mitigation #1862) #### DEP cert IDs mitigation #1862 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F1862) [**Call** (610) 239-4212](tel:6102394212) ### Airotox ✓ PA DEP certifiedMitigationMontgomery County Lansdale3 certified people #### Address * 14 E Main St, Lansdale, PA * ✉ [info@airotox.com](mailto:info@airotox.com) * [airotox.com](https://airotox.com/) #### Certified individuals * Achuff, Mark (mitigation #2741) * Achuff, Matthew (mitigation #7422) * Achuff, Ryan (mitigation #7424) #### DEP cert IDs mitigation #2741 · mitigation #3109 · mitigation #7422 · mitigation #7424 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F2741) [**Call** (215) 247-6869](tel:2152476869) ### Gentry, Timothy J. ✓ PA DEP certifiedMitigationTestingMontgomery County Horsham1 certified person #### Address * Po Box 1642, Horsham, PA * ✉ [homeinspectiondetective@comcast.net](mailto:homeinspectiondetective@comcast.net) #### Certified individuals * Gentry, Timothy J. (testing #2217, mitigation #2217) #### DEP cert IDs mitigation #2217 · testing #2217 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=F2217) [**Call** (215) 672-8529](tel:2156728529) ### Radon Technology & Enviromental Inc ✓ PA DEP certifiedMitigationMontgomery County Royersford5 certified people #### Address * 828 Oak St, Royersford, PA * ✉ [info@wefixradon.com](mailto:info@wefixradon.com) #### Certified individuals * Carney, Matthew (mitigation #7364) * Hadfield, John (mitigation #7627) * Kollmeyer, Jr., Bruce (mitigation #3024) * Kollmeyer, Shane (mitigation #7441) * Kollmeyer, Sr, Bruce (mitigation #7047) #### DEP cert IDs mitigation #1308 · mitigation #3024 · mitigation #7047 · mitigation #7364 · mitigation #7441 · mitigation #7627 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F1308) [**Call** (610) 495-2810](tel:6104952810) ### Radon-Rid LLC ✓ PA DEP certifiedMitigationTestingMontgomery County Phoenixville1 certified person #### Address * 693 Egypt Rd, Phoenixville, PA * ✉ [info@radonrid.com](mailto:info@radonrid.com) * [radonrid.com](https://www.radonrid.com/) #### Certified individuals * Marino, Marc A. (testing #2585, mitigation #2585) #### DEP cert IDs mitigation #2585 · mitigation #2586 · testing #2585 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=F2585) [**Call** (610) 222-2273](tel:6102222273) ### The Radon Bros ✓ PA DEP certifiedMitigationTestingMontgomery County Perkiomenville2 certified people #### Address * 2522 Deep Creek Rd, Perkiomenville, PA * ✉ [ballen@theradonbros.com](mailto:ballen@theradonbros.com) * ✉ [thollingsworth@theradonbros.com](mailto:thollingsworth@theradonbros.com) * [theradonbros.com](https://theradonbros.com/) #### Certified individuals * Allen, Brian (testing #3585) * Hollingsworth, Thomas (testing #2749, mitigation #2749) #### DEP cert IDs mitigation #2749 · testing #2749 · testing #3585 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=F2749) [**Call** (484) 460-9697](tel:4844609697) ### Yorgey, David ✓ PA DEP certifiedMitigationMontgomery County Conshohocken1 certified person #### Address * 347 Roberts Ave, Conshohocken, PA * ✉ [primeradonmitigation@gmail.com](mailto:primeradonmitigation@gmail.com) #### Certified individuals * Yorgey, David (mitigation #3758) #### DEP cert IDs mitigation #3758 Source: [DEP list](https://files.dep.state.pa.us/RadiationProtection/RadonDivision/RDPortalFiles/2026/10_01/CountyMitigation.pdf), retrieved 2026-10-11 · [Claim, correct or remove this listing](https://radonroster.com/claim-listing/?firm=F3758) [**Call** (215) 510-6762](tel:2155106762) ## Chester County radon test data Chester**31%** Statewide**37%** Share of basement tests ≥ 4 pCi/L **2.4**median basement pCi/L **212,529**basement tests on record **#58**of 67 PA counties by share ≥ 4 First floor: **20%** of 28,053 tests ≥ 4 pCi/L, median 1.4 Source: computed 2026-10-11 from PA DEP's [Radon Test Results, Sept 1986 - Current](https://data.pa.gov/Energy-and-the-Environment/Radon-Test-Results-September-1986-Current-Annual-C/vkjb-sx3k) (data.pa.gov, public domain). Counts tests, not homes: repeat and post-mitigation tests are included. Only a test tells you your home's level. [All Chester County listings →](https://radonroster.com/pa/county/chester/) · [West Chester radon guide](https://radonroster.com/pa/city/west-chester-pa/radon-guide/) **Want firms to contact you?**One request to West Chester mitigators[Request quotes](https://radonroster.com/get-quotes/?city=west-chester) Our advice ## Before you hire in West Chester 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 West Chester. [Request quotes](https://radonroster.com/get-quotes/?city=west-chester)