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Radon in Pennsylvania · DEP Radon Services Directory · read October 1, 2026

Radon mitigation in Pennsylvania: licensed contractors and state rules

Only people and firms DEP certifies may test or mitigate radon for someone else in Pennsylvania. This page shows every business on DEP's list for mitigation, with the ones that have a full listing first.

78mitigation businesses based in Pennsylvania
272testing-only businesses
49 of 67counties in EPA Zone 1

31 Pennsylvania mitigation businesses with a full listing

Each is on the DEP Radon Services Directory and says on its own website which radon work it does, or publishes its own price. Order is by town; nobody pays for a place.

Alpha Radon LLC

Aliquippa, PA · Beaver County

DEP mitigation certification 3322

Also licensed to test Radon mitigation systemsRadon testingCommercial and multifamily buildings

(724) 480-5828

Helping Solutions LLC

Altoona, PA · Blair County

DEP mitigation certification 2854

Also licensed to test Radon mitigation systemsRadon testingRadon-resistant new construction

(814) 934-0905

McKee Environmental

Bellefonte, PA · Centre County

DEP mitigation certification 3484

Also licensed to test Radon mitigation systemsRadon testingCommercial and multifamily buildings

(814) 380-7126

Indoor Air Surgeons

Bensalem, PA · Bucks County

DEP mitigation certification 3063, 3347

Radon mitigation systemsSub-slab depressurizationRadon fan replacement

(267) 952-3300

Bass Air Quality

Carlisle, PA · Cumberland County

DEP mitigation certification 2760

Also licensed to test Radon mitigation systemsRadon testingPost-mitigation testing

(717) 226-7179

Oak Leaf Environmental

Centre Hall, PA · Centre County

DEP mitigation certification 3726, 3727

Also licensed to test Radon mitigation systemsRadon testingSub-slab depressurization

(814) 682-0767

Supreme Radon

Douglassville, PA · Berks County

DEP mitigation certification 3540

Radon mitigation systemsRadon fan replacement

(610) 575-2775

Enviroquest

Harrisburg, PA · Dauphin County

DEP mitigation certification 1512, 1725

Also licensed to test Radon mitigation systemsRadon testingCommercial and multifamily buildings

(717) 913-4612

Air Quality Control, Inc.

King of Prussia, PA · Montgomery County

DEP mitigation certification 1862

Radon mitigation systemsExisting system repair and upgradesWritten warranty on systems

(610) 239-4212

Radon Guys, LLC

Middleburg, PA · Snyder County

DEP mitigation certification 3717, 3718

Also licensed to test Radon mitigation systemsRadon testingWritten warranty on systems

(570) 212-9870

Radon-Rid, LLC

Phoenixville, PA · Montgomery County

DEP mitigation certification 2585, 2586

Also licensed to test Radon mitigation systemsRadon testingReal estate transaction testing

(610) 222-2273

Radon Detection & Control

South Heights, PA · Beaver County

DEP mitigation certification 0492, 0493 +1

Also licensed to test Radon mitigation systemsRadon testingCommercial and multifamily buildings

(724) 375-1700

JK Mechanical

Willow Street, PA · Lancaster County

DEP mitigation certification 3747, 3748

Also licensed to test Radon testingRadon-resistant new constructionCommercial and multifamily buildings

(717) 464-0111

Every radon mitigation business on the PA DEP list

78 businesses based in Pennsylvania hold a mitigation certification. Names link where a business has a full listing. Phones are the list's own; a row the list prints as a person shows no phone.

From the DEP Radon Services Directory, edition of October 1, 2026.
BusinessCountyDEP IDsPeopleAlso testsPhone
Rjh Radon Mitigation Inc Lancaster 0565, 3058 2 (717) 859-6996
radon gone inc Berks 2885 1 (484) 547-3496
Alpha Radon LLC Beaver 3322 1 Yes (412) 926-5125
Anwar, Waqas (certified individual) Lehigh 3318 1
Integra Environmental, LLC Lehigh 2621, 3398 2 Yes (610) 346-8004
Swat Of PA Lehigh 3272, 3567, 3586 3 (610) 674-4421
Helping Solutions LLC Blair 2854 1 Yes (814) 934-0905
McKee Environmental Centre 3484 1 Yes (814) 380-7126
Indoor Air Surgeons Bucks 3063, 3347 2 (215) 239-8628
Ralston, Jeffrey (certified individual) Columbia 3163 1 Yes
S J Watras Inc Berks 1056, 1057 2 Yes (610) 367-5005
American Radon Solutions Inc Cumberland 1418, 1419 2 (717) 795-9367
Precision Inspections & Radon Solutions Cumberland 2404, 3355 2 Yes (717) 763-1373
The Mitigator York 2735 1 Yes (717) 576-9589
Bass Air Quality Cumberland 2760 1 Yes (717) 226-7179
Oak Leaf Environmental Centre 3726, 3727 2 Yes (814) 876-2228
Yorgey, David (certified individual) Montgomery 3758 1
Radon Control Services, LLC Allegheny 2499 1 (724) 772-2200
Olinchak, Gary (certified individual) Delaware 3003 1
Supreme Radon Berks 3540 1 (610) 575-2775
Insight Proper Bucks 1990 1 Yes (215) 674-1808
Levine, Benjamin (certified individual) Monroe 3656 1
Mike Sheely Home Inspection Cumberland 2691 1 (717) 732-6538
Fritsch, Andrew (certified individual) Lancaster 3541 1
Advanced Radon Solutions Erie 3133 1 (814) 490-2167
Erie's Radon Specialist Erie 3016 1 (814) 873-4900
Muller, Paul (certified individual) Beaver 3326 1
Mason Dixon Home Inspection Services, Inc. Adams 0275, 1688 2 Yes (717) 334-3435
Accurate Radon Control INC Montgomery 2112, 2113 2 Yes (215) 541-1557
Petrill, Jerry A. (certified individual) Westmoreland 1801 1
Sipe, Steven (certified individual) Dauphin 3287 1 Yes
Enviroquest Dauphin 1512, 1725 2 Yes (717) 233-6144
Radon, Joseph Dauphin 1234, 9999 2 Yes (717) 425-5365
Northern Radon Solutions Wayne 3370, 3491 2 (570) 647-4995
Certified Inspectors Inc Montgomery 2217 1 Yes (215) 672-8529
Main Street Radon Remediation Westmoreland 3689, 3690 2 Yes (724) 744-8006
Carpenter Radon LLC Cambria 2037 1 (814) 525-0895
Air Quality Control, Inc. Montgomery 1862 1 (610) 239-4212
Airotox Radon Remediation Services Montgomery 2741, 3109 2 (215) 247-6869
M. Webster Construction, Inc. Lebanon 2948, 3064 2 Yes (717) 274-3158
Verna, Sr., Edward Lebanon 2231 1 (717) 274-2541
Glantz, Frank (certified individual) Centre 2135 1
Conklin, George, IV (certified individual) Clinton 2769 1
Metzger, Dale (certified individual) Lehigh 2921 1
Radon Guys, LLC Snyder 3717, 3718 2 Yes (570) 212-9870
Knesnik, Randy (certified individual) Pike 1880 1
Crestwood Radon And Environmental Luzerne 3720, 3721 2 (570) 747-2366
Martin, Alexander (certified individual) Westmoreland 3631 1 Yes
Restoration Contracting Services Westmoreland 3219, 3220 2 Yes (412) 379-3278
Cruz, Luis (certified individual) Northampton 3712 1
RVS Radon Mitigation, LLC Philadelphia 3458, 3594 2 (267) 269-5573
Dependable Home Inspections LLC Chester 3020 1 Yes (570) 573-8159
Radon-Rid, LLC Montgomery 2585, 2586 2 Yes (610) 222-2273
R&R Radon Reduction Schuylkill 2893 1 (570) 345-6515
Buffone, Steven (certified individual) Allegheny 3700 1 Yes
Steel City Radon Allegheny 2002, 2038 2 (412) 851-4231
Shaw, Matthew (certified individual) Warren 3193 1 Yes
Gutridge Inspections Chester 2973 1 Yes (610) 385-3339
The Radon Bros Bucks 2749, 3556 2 Yes (484) 460-9697
Radon Technology & Enviromental Montgomery 1308, 3024 2 (610) 495-2810
Affordable Radon M Lackawanna 1716 1 (570) 254-2242
Disaster Blaster of Scranton & Wilkes-Barre Lackawanna 2848, 2849 2 (570) 963-1123
Penn Guard Radon Solutions Snyder 3761, 3762 2 Yes (610) 496-9810
Attack Radon Mitigation Lackawanna 3441 1 (570) 499-0752
Radon Detection & Control Beaver 0492, 0493, 3027 3 Yes (724) 375-1700
Gelsick Home Inspection, LLC Elk 2809 1 Yes (814) 590-9754
Abell, Matt (certified individual) Monroe 3632 1 Yes
ARM Environmental Llc Monroe 2303, 2439 2 Yes (570) 402-1916
Zigga, Eric (certified individual) Lackawanna 2233 1
Blank, Mathew (certified individual) Westmoreland 3696 1
Kennihan Plumbing & Heating, Inc. Butler 3535, 3536 2 (724) 898-2587
Home Radon Pros Washington 3238, 3476 2 Yes (412) 584-0799
Meyer, Jr., Robert York 1800 1 Yes (717) 432-9575
Safe Shelter Environmental Chester 0207, 3525 2 Yes (610) 594-0350
Bacchus, Brian C. (certified individual) Allegheny 1771 1 Yes
JCN Radon Services, Inc. Lycoming 3518, 3565 2 Yes (570) 988-6800
JK Mechanical Lancaster 3747, 3748 2 Yes (717) 464-0111
Absolute Radon Mitigation LLC York 1965, 1966 2 Yes (717) 755-5398
Testing-only businesses by county (272)

Businesses on the list for testing (measurement) only, counted where the list places them. They are not listed one by one yet.

CountyTesting-only businesses
Allegheny38
Montgomery21
Chester19
Bucks14
Westmoreland14
Luzerne12
Butler10
Delaware10
Monroe9
Philadelphia7
Northampton7
Lehigh6
Lancaster6
Lackawanna6
Washington6
Berks5
Franklin5
Pike5
Dauphin4
Erie4
Adams4
Cambria4
York4
Schuylkill4
Wayne3
Fayette3
Huntingdon3
Beaver3
Lycoming3
Armstrong3
Crawford3
Cumberland2
Venango2
Indiana2
Carbon2
Lawrence2
Lebanon2
Blair2
Perry1
Northumberlan1
Clearfield1
Bradford1
Susquehanna1
Columbia1
Clinton1
Somerset1
Union1
Tioga1
Centre1
Bedford1
Mifflin1

Pennsylvania's radon certification rules

Certification required by law
Under the Radon Certification Act, only people certified by the state may test for radon or mitigate it in a building in Pennsylvania.Pennsylvania General Assembly, read October 15, 2026
Owner exemption
People testing or fixing radon in a building they own do not need certification.Pennsylvania General Assembly, read October 15, 2026
Three separate certifications
DEP certifies radon testing, radon mitigation and radon laboratory analysis separately, and each needs its own certification.Pennsylvania Department of Environmental Protection, read October 15, 2026
Placing a test device
Anyone who places and retrieves a radon test device for someone else, such as a home inspector in a sale, must hold DEP testing certification.Pennsylvania Department of Environmental Protection, read October 15, 2026
Firm employees
A certified firm must have a certified individual in charge, and its other employees may do the work only after DEP approves them in writing.Pennsylvania Department of Environmental Protection, read October 15, 2026
Testing employee IDs
Testing firm employees listed by DEP carry ID numbers in the 8000 series.Pennsylvania Department of Environmental Protection, read October 15, 2026
Mitigation employee IDs
Mitigation firm employees listed by DEP carry ID numbers in the 7000 series.Pennsylvania Department of Environmental Protection, read October 15, 2026
Public directory
DEP publishes a Radon Services Directory of certified testers, mitigators and labs, updated monthly and sorted by name and by county.Pennsylvania Department of Environmental Protection, read October 15, 2026
How to verify
DEP tells the public to check for a current DEP ID card or certificate, because certification status can change between monthly lists.Pennsylvania Department of Environmental Protection, read October 15, 2026
ID card on the job
Certified testers, mitigators and listed firm employees must wear their DEP photo ID card while working and show it to a client on request.PA Environmental Quality Board, 2018 final rule text (posted by DEP), read October 15, 2026
Two year term
A radon certification lasts 2 years from issue.PA Environmental Quality Board, 2018 final rule text (posted by DEP), read October 15, 2026
Renewal deadline
To avoid a lapse, a certified person must file for renewal at least 30 days before the certification expires.PA Environmental Quality Board, 2018 final rule text (posted by DEP), read October 15, 2026
Continuing education
At each renewal a certified individual must show 16 credit hours of DEP-approved continuing education.PA Environmental Quality Board, 2018 final rule text (posted by DEP), read October 15, 2026
Results go to DEP
Certified testers and mitigators must report each job, including the building address and owner name, to DEP within 45 days of the service.Pennsylvania General Assembly, read October 15, 2026

A home inspector who places a radon test for a buyer needs DEP testing certification. Pennsylvania home inspector rules

What a mitigator must do

State mitigation standards
Pennsylvania has its own Radon Mitigation Standards that set uniform rules for designing, installing and checking home radon systems.Pennsylvania Department of Environmental Protection, read October 15, 2026
Tests before and after
A mitigator must test the building before and after the work, and each test must run at least 48 hours.PA Environmental Quality Board, 2018 final rule text (posted by DEP), read October 15, 2026
Post-mitigation test window
The follow-up test may start no sooner than 24 hours and no later than 30 days after the system is finished and switched on.PA Environmental Quality Board, 2018 final rule text (posted by DEP), read October 15, 2026
System label
A system description label must be fixed to the radon system piping, readable from at least 3 feet away.PA Environmental Quality Board, 2018 final rule text (posted by DEP), read October 15, 2026
Retest advice
The information package must recommend retesting the home at least every 2 years.PA Environmental Quality Board, 2018 final rule text (posted by DEP), read October 15, 2026
Fan location
A radon fan may not go below grade, in a window well, or inside the heated or cooled living space.PA Environmental Quality Board, 2018 final rule text (posted by DEP), read October 15, 2026

Radon when a Pennsylvania home is sold

Seller disclosure duty
A Pennsylvania home seller must disclose known material defects on a property disclosure statement given to the buyer before the sale agreement is signed.Pennsylvania General Assembly, read October 15, 2026
No duty to investigate
The disclosure law does not make the seller investigate, so it does not by itself require a radon test before a sale.Pennsylvania General Assembly, read October 15, 2026
No digital monitors in sales
A national advisory posted by DEP says consumer digital radon monitors should not be used for real estate tests.Conference of Radiation Control Program Directors (posted by Pennsylvania DEP), read October 15, 2026

Pennsylvania radon disclosure rules in full

New homes

No statewide new build rule
Pennsylvania's statewide building code does not require radon-resistant new construction, though a town may adopt it.Pennsylvania Department of Environmental Protection, read October 15, 2026
Certified mitigator in new builds
DEP says hiring a certified mitigator while a home is being built is not required, though it is helpful; the law exempts builders' preventive measures.Pennsylvania Department of Environmental Protection, read October 15, 2026

What the state program says

How common elevated radon is
DEP says about 40% of Pennsylvania homes tested show radon above the EPA action guideline of 4 pCi/L.Pennsylvania Department of Environmental Protection, read October 15, 2026
Average home level
DEP puts the average residential radon level in Pennsylvania at 7 to 8 pCi/L.Pennsylvania Department of Environmental Protection, read October 15, 2026
When to fix
DEP advises a second test above 4 pCi/L, and corrective action if the result is still 4 pCi/L or higher.Pennsylvania Department of Environmental Protection, read October 15, 2026
Radon hotline
DEP runs a Radon Hotline at 800-237-2366.Pennsylvania Department of Environmental Protection, read October 15, 2026
Free confirmation kit
Anyone in Pennsylvania whose screening test topped 100 pCi/L can get a free short-term confirmation kit from DEP.Pennsylvania Department of Environmental Protection, read October 15, 2026
Test results kept private
State law keeps radon results for private homes confidential; DEP releases them only to the property owner.Pennsylvania General Assembly, read October 15, 2026

EPA radon zones for Pennsylvania's 67 counties

Zone 1: 49 counties. Zone 2: 17. Zone 3: 1. EPA's zones predict county averages; EPA says the map should not decide whether a home is tested, because high homes turn up in every zone.

Zone by county (67)
From EPA's county zone spreadsheet, read October 15, 2026.
CountyEPA zone
Adams County1
Allegheny County1
Armstrong County1
Beaver County1
Bedford County1
Berks County1
Blair County1
Bradford County1
Bucks County1
Butler County1
Cambria County2
Cameron County1
Carbon County1
Centre County1
Chester County1
Clarion County1
Clearfield County1
Clinton County1
Columbia County1
Crawford County2
Cumberland County1
Dauphin County1
Delaware County1
Elk County2
Erie County2
Fayette County2
Forest County2
Franklin County1
Fulton County1
Greene County2
Huntingdon County1
Indiana County1
Jefferson County2
Juniata County1
Lackawanna County1
Lancaster County1
Lawrence County2
Lebanon County1
Lehigh County1
Luzerne County1
Lycoming County1
McKean County2
Mercer County2
Mifflin County1
Monroe County1
Montgomery County1
Montour County1
Northampton County1
Northumberland County1
Perry County1
Philadelphia County3
Pike County2
Potter County2
Schuylkill County1
Snyder County1
Somerset County2
Sullivan County1
Susquehanna County1
Tioga County1
Union County1
Venango County1
Warren County2
Washington County2
Wayne County2
Westmoreland County1
Wyoming County1
York County1

Sources for this page

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