Home Pennsylvania Radon testing § 4.1 — Pennsylvania
Radon testing in Pennsylvania This page lists 612 people and firms with a current radon testing credential whose official record names Pennsylvania. Each row shows the credential number, the issuing body, and its own verification date. The latest record check on this page was October 13, 2026; other records may have been checked earlier. Source: PA DEP. Verify the number before you hire.
Latest credential check October 13, 2026. Methodology Individual record dates may be earlier. PA DEP .
Radon testing Radon mitigation
Testing listings are people credentialed to measure radon. Mitigation listings are people credentialed to install a reduction system. Some people appear on both lists when the official file says they hold both. The list is ordered by the city or county on each record. That place is where the record is filed, not a promise about where the person works.
Radon Protection
current PA DEP № 1688
mitigation, testing, Adams County
current PA DEP № 3623
testing, Adams County
Radon Protection Ser
current PA DEP № 8714
testing, Adams County
Top Dawg Inspec
current PA DEP № 9046
testing, Adams County
S.a.f.e. Inspection
current PA DEP № 2193
testing, Adams County
Radon Protecti
current PA DEP № 9120
testing, Adams County
current PA DEP № 9067
testing, Adams County
current PA DEP № 3760
testing, Adams County
Top Dawg Inspecti
current PA DEP № 2985
testing, Adams County
current PA DEP № 0275
mitigation, testing, Adams County
current PA DEP № 3013
testing, Adams County
current PA DEP № 2996
testing, Adams County
current PA DEP № 1843
testing, Allegheny County
current PA DEP № 2868
testing, Allegheny County
current PA DEP № 3692
testing, Allegheny County
current PA DEP № 2914
testing, Allegheny County
current PA DEP № 2890
testing, Allegheny County
current PA DEP № 3430
testing, Allegheny County
current PA DEP № 1771
mitigation, testing, Allegheny County
Atlas Technical
current PA DEP № 9006
testing, Allegheny County
current PA DEP № 3734
testing, Allegheny County
Welcome Home, Hom
current PA DEP № 8920
testing, Allegheny County
Guardian Home Inspect
current PA DEP № 2745
testing, Allegheny County
current PA DEP № 3716
testing, Allegheny County
A Harmony Home In
current PA DEP № 9010
testing, Allegheny County
current PA DEP № 3642
testing, Allegheny County
Vbinspect.com
current PA DEP № 9024
testing, Allegheny County
Clarity Home Insp
current PA DEP № 3663
testing, Allegheny County
current PA DEP № 3700
mitigation, testing, Allegheny County
current PA DEP № 3224
testing, Allegheny County
current PA DEP № 3558
testing, Allegheny County
Absolute Safegua
current PA DEP № 2982
testing, Allegheny County
current PA DEP № 3664
testing, Allegheny County
current PA DEP № 2836
testing, Allegheny County
Wlecome Home, Home
current PA DEP № 9090
testing, Allegheny County
current PA DEP № 3338
testing, Allegheny County
current PA DEP № 2788
testing, Allegheny County
current PA DEP № 8885
testing, Allegheny County
Certified Radon I
current PA DEP № 9114
testing, Allegheny County
current PA DEP № 3557
testing, Allegheny County
current PA DEP № 2920
testing, Allegheny County
Vbinspect.com
current PA DEP № 3184
testing, Allegheny County
current PA DEP № 2839
testing, Allegheny County
current PA DEP № 8974
testing, Allegheny County
current PA DEP № 3754
testing, Allegheny County
current PA DEP № 2915
testing, Allegheny County
Alltech In
current PA DEP № 2276
testing, Allegheny County
Affordable Servic
current PA DEP № 9091
testing, Allegheny County
Eagle Home Inspec
current PA DEP № 3738
testing, Allegheny County
Eagle Home Inspectio
current PA DEP № 9101
testing, Allegheny County
current PA DEP № 3145
testing, Allegheny County
current PA DEP № 2463
testing, Allegheny County
current PA DEP № 2729
testing, Allegheny County
current PA DEP № 2464
testing, Allegheny County
Atlas Technical
current PA DEP № 3661
testing, Allegheny County
current PA DEP № 3298
testing, Allegheny County
current PA DEP № 2569
testing, Allegheny County
current PA DEP № 2124
testing, Allegheny County
High Touch
current PA DEP № 8827
testing, Allegheny County
current PA DEP № 3753
testing, Allegheny County
current PA DEP № 3070
testing, Allegheny County
Richard D. Mali
current PA DEP № 1948
testing, Allegheny County
A Harmony Home In
current PA DEP № 1842
testing, Allegheny County
current PA DEP № 3110
testing, Allegheny County
current PA DEP № 1654
testing, Allegheny County
current PA DEP № 3695
testing, Allegheny County
Win Murrysvil
current PA DEP № 1988
testing, Allegheny County
Win - Murrysville
current PA DEP № 8314
testing, Allegheny County
Eagle Home Inspectio
current PA DEP № 8950
testing, Allegheny County
Eagle Home Inspec
current PA DEP № 9124
testing, Allegheny County
current PA DEP № 3218
testing, Allegheny County
Keystone Building I
current PA DEP № 8949
testing, Allegheny County
current PA DEP № 3596
testing, Allegheny County
A Harmony Home Insp
current PA DEP № 8513
testing, Allegheny County
Hometeam Of Southp
current PA DEP № 9019
testing, Allegheny County
current PA DEP № 3735
testing, Allegheny County
A Harmony Home In
current PA DEP № 8787
testing, Allegheny County
current PA DEP № 3494
testing, Allegheny County
current PA DEP № 3511
testing, Allegheny County
Alltech
current PA DEP № 8596
testing, Allegheny County
Alltech
current PA DEP № 8595
testing, Allegheny County
current PA DEP № 3685
testing, Allegheny County
current PA DEP № 3729
testing, Allegheny County
Vbinspect.com, Inc.
current PA DEP № 8809
testing, Allegheny County
current PA DEP № 3061
testing, Allegheny County
Keystone Building
current PA DEP № 2643
testing, Allegheny County
Ecs Mid-atlantic Ll
current PA DEP № 9148
testing, Allegheny County
current PA DEP № 3577
testing, Allegheny County
A Harmony Home Ins
current PA DEP № 8658
testing, Allegheny County
current PA DEP № 3094
testing, Allegheny County
current PA DEP № 3329
testing, Allegheny County
current PA DEP № 3466
testing, Allegheny County
current PA DEP № 1989
testing, Allegheny County
current PA DEP № 3245
testing, Armstrong County
current PA DEP № 3100
testing, Armstrong County
current PA DEP № 3261
testing, Armstrong County
current PA DEP № 3412
testing, Beaver County
current PA DEP № 2980
testing, Beaver County
current PA DEP № 8379
testing, Beaver County
current PA DEP № 0492
mitigation, testing, Beaver County
Radon Detection An
current PA DEP № 8684
testing, Beaver County
current PA DEP № 3321
testing, Beaver County
Radon Detection And
current PA DEP № 9078
testing, Beaver County
current PA DEP № 0493
mitigation, testing, Beaver County
Radon Detection And C
current PA DEP № 8810
testing, Beaver County
current PA DEP № 3469
testing, Bedford County
current PA DEP № 0048
testing, Berks County
current PA DEP № 2399
testing, Berks County
current PA DEP № 2398
testing, Berks County
A.b.e. Radiation M
current PA DEP № 9085
testing, Berks County
A.b.e. Radiatio
current PA DEP № 0050
testing, Berks County
A.b.e. Radiatio
current PA DEP № 8014
testing, Berks County
current PA DEP № 3605
testing, Berks County
current PA DEP № 1057
mitigation, testing, Berks County
A.b.e. Radiation
current PA DEP № 8834
testing, Berks County
current PA DEP № 1056
mitigation, testing, Berks County
A-1 Realty Ser
current PA DEP № 2751
testing, Berks County
Helping Solutuions Ll
current PA DEP № 2854
mitigation, testing, Blair County
current PA DEP № 3404
testing, Blair County
current PA DEP № 9075
testing, Blair County
current PA DEP № 1962
testing, Blair County
current PA DEP № 3171
testing, Blair County
current PA DEP № 3509
testing, Bradford County
current PA DEP № 3585
testing, Bucks County
current PA DEP № 3235
testing, Bucks County
current PA DEP № 9149
testing, Bucks County
Pest Blaster Llc
current PA DEP № 2875
testing, Bucks County
Pillar To Post
current PA DEP № 2905
testing, Bucks County
current PA DEP № 3534
testing, Bucks County
current PA DEP № 3242
testing, Bucks County
Pillar To Pos
current PA DEP № 8791
testing, Bucks County
Eagle Inspectio
current PA DEP № 3285
testing, Bucks County
current PA DEP № 2290
testing, Bucks County
current PA DEP № 2252
testing, Bucks County
The Radon Bros
current PA DEP № 9106
testing, Bucks County
current PA DEP № 2872
testing, Bucks County
Pillar To Post
current PA DEP № 8743
testing, Bucks County
current PA DEP № 2898
testing, Bucks County
current PA DEP № 9142
testing, Bucks County
current PA DEP № 3383
testing, Bucks County
current PA DEP № 2416
testing, Bucks County
current PA DEP № 2619
testing, Bucks County
The Radon Bros
current PA DEP № 9104
testing, Bucks County
Pillar To Post
current PA DEP № 8815
testing, Bucks County
current PA DEP № 2118
testing, Bucks County
Pillar To Post
current PA DEP № 8929
testing, Bucks County
Eagle Inspectio
current PA DEP № 9025
testing, Bucks County
Insight Proper
current PA DEP № 1990
mitigation, testing, Bucks County
The Radon Bros
current PA DEP № 9105
testing, Bucks County
A- Stat Inspec
current PA DEP № 2815
testing, Bucks County
current PA DEP № 3714
testing, Bucks County
current PA DEP № 2626
testing, Bucks County
current PA DEP № 2477
testing, Butler County
current PA DEP № 3763
testing, Butler County
Housemaster Home Insp
current PA DEP № 2873
testing, Butler County
current PA DEP № 3275
testing, Butler County
current PA DEP № 1230
testing, Butler County
current PA DEP № 2618
testing, Butler County
Housemaster Home
current PA DEP № 9096
testing, Butler County
current PA DEP № 2522
testing, Butler County
Onega Llc
current PA DEP № 2386
testing, Butler County
Pillar To Post
current PA DEP № 9099
testing, Butler County
Onega Llc
current PA DEP № 8897
testing, Butler County
current PA DEP № 2845
testing, Butler County
current PA DEP № 3144
testing, Butler County
Housemaster Hom
current PA DEP № 8838
testing, Butler County
Housemast
current PA DEP № 8664
testing, Butler County
current PA DEP № 3562
testing, Butler County
current PA DEP № 2734
testing, Butler County
current PA DEP № 3320
testing, Butler County
current PA DEP № 3709
testing, Butler County
Ecs Mid-atlantic Llc
current PA DEP № 9147
testing, Butler County
current PA DEP № 1996
testing, Cambria County
current PA DEP № 3708
testing, Cambria County
current PA DEP № 2165
testing, Cambria County
current PA DEP № 3707
testing, Cambria County
current PA DEP № 2986
testing, Carbon County
current PA DEP № 2172
testing, Carbon County
current PA DEP № 3710
testing, Centre County
current PA DEP № 3484
mitigation, testing, Centre County
McKee Environmenat
current PA DEP № 9103
testing, Centre County
current PA DEP № 3727
mitigation, testing, Centre County
Oak Leaf Environm
current PA DEP № 3726
mitigation, testing, Centre County
current PA DEP № 2925
testing, Chester County
Safe Shelter En
current PA DEP № 3525
mitigation, testing, Chester County
current PA DEP № 3020
mitigation, testing, Chester County
Homer Inspection Ser
current PA DEP № 9127
testing, Chester County
current PA DEP № 3047
testing, Chester County
The Green Valley
current PA DEP № 8882
testing, Chester County
current PA DEP № 3253
testing, Chester County
current PA DEP № 3479
testing, Chester County
current PA DEP № 3454
testing, Chester County
current PA DEP № 3308
testing, Chester County
current PA DEP № 1627
testing, Chester County
Gutridge Inspec
current PA DEP № 2973
mitigation, testing, Chester County
current PA DEP № 3733
testing, Chester County
current PA DEP № 3196
testing, Chester County
current PA DEP № 2109
testing, Chester County
current PA DEP № 2757
testing, Chester County
current PA DEP № 3756
testing, Chester County
current PA DEP № 3327
testing, Chester County
Homer Inspect
current PA DEP № 9126
testing, Chester County
current PA DEP № 3342
testing, Chester County
current PA DEP № 2288
testing, Chester County
current PA DEP № 3552
testing, Chester County
Peach Inspections
current PA DEP № 8606
testing, Chester County
Peach Inspection
current PA DEP № 3356
testing, Chester County
current PA DEP № 3589
testing, Chester County
current PA DEP № 0207
mitigation, testing, Chester County
Homer Inspecti
current PA DEP № 9128
testing, Chester County
current PA DEP № 3181
testing, Chester County
current PA DEP № 3433
testing, Chester County
current PA DEP № 2736
testing, Chester County
current PA DEP № 3167
testing, Clearfield County
current PA DEP № 1712
testing, Clinton County
current PA DEP № 3598
testing, Columbia County
current PA DEP № 3163
mitigation, testing, Columbia County
current PA DEP № 3591
testing, Crawford County
current PA DEP № 3112
testing, Crawford County
current PA DEP № 2630
testing, Crawford County
current PA DEP № 2282
testing, Cumberland County
current PA DEP № 3532
testing, Cumberland County
Precision Inspection
current PA DEP № 8493
testing, Cumberland County
Precision Inspection
current PA DEP № 3104
testing, Cumberland County
current PA DEP № 3105
testing, Cumberland County
current PA DEP № 8909
testing, Cumberland County
current PA DEP № 2760
mitigation, testing, Cumberland County
current PA DEP № 3385
testing, Dauphin County
current PA DEP № 2102
testing, Dauphin County
Enviroquest, Inc
current PA DEP № 9068
testing, Dauphin County
current PA DEP № 1725
mitigation, testing, Dauphin County
current PA DEP № 2337
testing, Dauphin County
current PA DEP № 1234
mitigation, testing, Dauphin County
current PA DEP № 3287
mitigation, testing, Dauphin County
Enviroquest Inc
current PA DEP № 1512
mitigation, testing, Dauphin County
current PA DEP № 2829
testing, Dauphin County
current PA DEP № 3740
testing, Delaware County
current PA DEP № 0125
testing, Delaware County
Boro Environmental, In
current PA DEP № 0126
testing, Delaware County
Boro Environmental, In
current PA DEP № 8023
testing, Delaware County
Homepro Systems O
current PA DEP № 8736
testing, Delaware County
current PA DEP № 1609
testing, Delaware County
Boro Environmen
current PA DEP № 8541
testing, Delaware County
current PA DEP № 3022
testing, Delaware County
current PA DEP № 3699
testing, Delaware County
Boro Environmental,
current PA DEP № 9123
testing, Delaware County
current PA DEP № 2624
testing, Delaware County
current PA DEP № 1915
testing, Delaware County
current PA DEP № 2809
mitigation, testing, Elk County
current PA DEP № 3354
testing, Erie County
current PA DEP № 3618
testing, Erie County
current PA DEP № 1954
testing, Erie County
current PA DEP № 3416
testing, Erie County
current PA DEP № 9086
testing, Fayette County
current PA DEP № 3296
testing, Fayette County
current PA DEP № 3679
testing, Fayette County
current PA DEP № 1703
testing, Fayette County
current PA DEP № 3680
testing, Fayette County
current PA DEP № 2706
testing, Franklin County
current PA DEP № 3462
testing, Franklin County
current PA DEP № 3625
testing, Franklin County
current PA DEP № 3601
testing, Franklin County
current PA DEP № 3175
testing, Huntingdon County
current PA DEP № 2160
testing, Huntingdon County
current PA DEP № 3485
testing, Huntingdon County
current PA DEP № 2168
testing, Huntingdon County
current PA DEP № 2550
testing, Indiana County
current PA DEP № 3755
testing, Indiana County
Harvey Home Inspe
current PA DEP № 1713
testing, Lackawanna County
current PA DEP № 2993
testing, Lackawanna County
Harvey Home Inspec
current PA DEP № 9071
testing, Lackawanna County
current PA DEP № 3351
testing, Lackawanna County
current PA DEP № 3240
testing, Lackawanna County
current PA DEP № 3192
testing, Lackawanna County
current PA DEP № 3607
testing, Lackawanna County
current PA DEP № 2513
testing, Lackawanna County
current PA DEP № 8634
testing, Lackawanna County
current PA DEP № 3283
testing, Lancaster County
current PA DEP № 2858
testing, Lancaster County
Precise Inspecting
current PA DEP № 3295
testing, Lancaster County
Precise Inspecting
current PA DEP № 8900
testing, Lancaster County
current PA DEP № 2795
testing, Lancaster County
current PA DEP № 3445
testing, Lancaster County
current PA DEP № 3599
testing, Lancaster County
current PA DEP № 3743
testing, Lancaster County
Jk Mechanical Inc
current PA DEP № 3747
mitigation, testing, Lancaster County
current PA DEP № 3549
testing, Lawrence County
current PA DEP № 3550
testing, Lawrence County
current PA DEP № 3764
testing, Lawrence County
current PA DEP № 8994
testing, Lawrence County
current PA DEP № 8996
testing, Lawrence County
current PA DEP № 3460
testing, Lebanon County
current PA DEP № 3626
testing, Lebanon County
M. Webster Const
current PA DEP № 2948
mitigation, testing, Lebanon County
current PA DEP № 2725
testing, Lehigh County
current PA DEP № 3446
testing, Lehigh County
Integra Environme
current PA DEP № 2621
mitigation, testing, Lehigh County
Allied Inspection
current PA DEP № 8550
testing, Lehigh County
current PA DEP № 8984
testing, Lehigh County
current PA DEP № 8902
testing, Lehigh County
Cda Inspection Servi
current PA DEP № 9082
testing, Lehigh County
current PA DEP № 3388
testing, Lehigh County
current PA DEP № 2687
testing, Lehigh County
current PA DEP № 3447
testing, Lehigh County
current PA DEP № 3752
testing, Lehigh County
current PA DEP № 3572
testing, Lehigh County
current PA DEP № 2846
testing, Lehigh County
current PA DEP № 2473
testing, Luzerne County
current PA DEP № 3676
testing, Luzerne County
current PA DEP № 3603
testing, Luzerne County
current PA DEP № 1778
testing, Luzerne County
current PA DEP № 3048
testing, Luzerne County
current PA DEP № 2379
testing, Luzerne County
current PA DEP № 3436
testing, Luzerne County
current PA DEP № 3587
testing, Luzerne County
current PA DEP № 3313
testing, Luzerne County
current PA DEP № 3357
testing, Luzerne County
current PA DEP № 3590
testing, Luzerne County
current PA DEP № 3333
testing, Luzerne County
current PA DEP № 2012
testing, Lycoming County
Cei/housemaster Home
current PA DEP № 8327
testing, Lycoming County
Cei/housemaster Home
current PA DEP № 2011
testing, Lycoming County
current PA DEP № 3414
testing, Lycoming County
current PA DEP № 3518
mitigation, testing, Lycoming County
current PA DEP № 3574
testing, Lycoming County
current PA DEP № 3174
testing, Mifflin County
current PA DEP № 2439
mitigation, testing, Monroe County
current PA DEP № 3632
mitigation, testing, Monroe County
Housemast
current PA DEP № 8977
testing, Monroe County
Housemasters Of The
current PA DEP № 9058
testing, Monroe County
A.r.m Environment
current PA DEP № 9080
testing, Monroe County
current PA DEP № 2303
mitigation, testing, Monroe County
Housemasters Of The
current PA DEP № 8975
testing, Monroe County
current PA DEP № 3533
testing, Monroe County
current PA DEP № 3005
testing, Monroe County
current PA DEP № 3647
testing, Monroe County
Housemasters
current PA DEP № 8976
testing, Monroe County
Housemasters Of Th
current PA DEP № 9057
testing, Monroe County
current PA DEP № 0256
testing, Monroe County
current PA DEP № 3300
testing, Monroe County
current PA DEP № 3377
testing, Monroe County
current PA DEP № 3302
testing, Monroe County
current PA DEP № 3480
testing, Monroe County
current PA DEP № 2855
testing, Monroe County
current PA DEP № 9133
testing, Monroe County
Housemaster Of The Po
current PA DEP № 8979
testing, Monroe County
Spy Inspection Servi
current PA DEP № 8555
testing, Montgomery County
Spy Inspection Se
current PA DEP № 8668
testing, Montgomery County
current PA DEP № 2496
testing, Montgomery County
current PA DEP № 2719
testing, Montgomery County
Spotlight Home I
current PA DEP № 3382
testing, Montgomery County
current PA DEP № 2247
testing, Montgomery County
current PA DEP № 3619
testing, Montgomery County
current PA DEP № 0317
testing, Montgomery County
current PA DEP № 3566
testing, Montgomery County
Radon Testing Syste
current PA DEP № 8766
testing, Montgomery County
current PA DEP № 8283
testing, Montgomery County
Radon Testing Syst
current PA DEP № 8999
testing, Montgomery County
Accurate Radon Contr
current PA DEP № 2112
mitigation, testing, Montgomery County
current PA DEP № 3289
testing, Montgomery County
current PA DEP № 3722
testing, Montgomery County
current PA DEP № 3304
testing, Montgomery County
Spy Inspection Serv
current PA DEP № 8693
testing, Montgomery County
current PA DEP № 2217
mitigation, testing, Montgomery County
current PA DEP № 2794
testing, Montgomery County
current PA DEP № 2749
mitigation, testing, Montgomery County
Radon Testing Systems
current PA DEP № 8745
testing, Montgomery County
A1 House Prep, Llc
current PA DEP № 8641
testing, Montgomery County
current PA DEP № 2427
testing, Montgomery County
D-tech
current PA DEP № 1941
testing, Montgomery County
current PA DEP № 3645
testing, Montgomery County
current PA DEP № 3178
testing, Montgomery County
Spy Inspection
current PA DEP № 9150
testing, Montgomery County
current PA DEP № 2771
testing, Montgomery County
Radon-rid Llc
current PA DEP № 2585
mitigation, testing, Montgomery County
current PA DEP № 3286
testing, Montgomery County
current PA DEP № 3737
testing, Montgomery County
current PA DEP № 8274
testing, Montgomery County
Musselman Home I
current PA DEP № 9129
testing, Montgomery County
Musselman Home Ins
current PA DEP № 8847
testing, Montgomery County
current PA DEP № 3381
testing, Montgomery County
Musselman Hom
current PA DEP № 2962
testing, Montgomery County
Armored Home Inspec
current PA DEP № 2495
testing, Montgomery County
Armored Home Inspecti
current PA DEP № 8542
testing, Montgomery County
Armored Home Inps
current PA DEP № 9084
testing, Montgomery County
current PA DEP № 3621
testing, Montgomery County
current PA DEP № 0794
testing, Montgomery County
Spy Inspections Serv
current PA DEP № 8339
testing, Montgomery County
current PA DEP № 2042
testing, Montgomery County
Musselman Home Inspe
current PA DEP № 8958
testing, Montgomery County
current PA DEP № 3341
testing, Montgomery County
current PA DEP № 2043
testing, Montgomery County
current PA DEP № 3195
testing, Montgomery County
Spotlight Home Inspe
current PA DEP № 8813
testing, Montgomery County
current PA DEP № 2511
testing, Northampton County
current PA DEP № 2825
testing, Northampton County
Bpg Inspection, Llc
current PA DEP № 9073
testing, Northampton County
current PA DEP № 9115
testing, Northampton County
current PA DEP № 3694
testing, Northampton County
Bpg Inspection,llc
current PA DEP № 8638
testing, Northampton County
current PA DEP № 3523
testing, Northampton County
Bpg Inspections
current PA DEP № 8893
testing, Northampton County
Newman's Home
current PA DEP № 2923
testing, Northampton County
current PA DEP № 3034
testing, Northampton County
Bpg Inspections
current PA DEP № 8945
testing, Northampton County
current PA DEP № 3386
testing, Northampton County
Newman's Home
current PA DEP № 8747
testing, Northampton County
Bpg Inspections, Ll
current PA DEP № 9089
testing, Northampton County
current PA DEP № 3693
testing, Northampton County
current PA DEP № 1914
testing, Northampton County
Bpg Inspection, Llc
current PA DEP № 8837
testing, Northampton County
current PA DEP № 3501
testing, Northumberland County
current PA DEP № 3698
testing, Perry County
current PA DEP № 3483
testing, Perry County
Alpha Home Incpe
current PA DEP № 9094
testing, Perry County
current PA DEP № 9138
testing, Philadelphia County
Valueguard Usa,
current PA DEP № 9053
testing, Philadelphia County
current PA DEP № 2497
testing, Philadelphia County
current PA DEP № 3374
testing, Philadelphia County
Valueguard Usa, Inc
current PA DEP № 9030
testing, Philadelphia County
current PA DEP № 2188
testing, Philadelphia County
Geo Environmental
current PA DEP № 8701
testing, Philadelphia County
Valueguard Usa Inc
current PA DEP № 8788
testing, Philadelphia County
current PA DEP № 3677
testing, Philadelphia County
Valueguard Usa Inc
current PA DEP № 2740
testing, Philadelphia County
Valueguard Usa, Inc
current PA DEP № 9031
testing, Philadelphia County
current PA DEP № 3746
testing, Philadelphia County
Valueguard Usa Inc
current PA DEP № 9016
testing, Philadelphia County
current PA DEP № 1910
testing, Philadelphia County
current PA DEP № 3503
testing, Philadelphia County
current PA DEP № 3508
testing, Pike County
current PA DEP № 3551
testing, Pike County
current PA DEP № 3495
testing, Pike County
current PA DEP № 3236
testing, Pike County
current PA DEP № 2817
testing, Pike County
Precise Home Ins
current PA DEP № 8715
testing, Pike County
Precise Home
current PA DEP № 2189
testing, Pike County
current PA DEP № 3358
testing, Schuylkill County
current PA DEP № 2562
testing, Schuylkill County
current PA DEP № 3179
testing, Schuylkill County
current PA DEP № 3225
testing, Schuylkill County
current PA DEP № 9146
testing, Snyder County
Penn Guard Rado
current PA DEP № 3761
mitigation, testing, Snyder County
current PA DEP № 3762
mitigation, testing, Snyder County
current PA DEP № 3718
mitigation, testing, Snyder County
Radon Guys, Llc
current PA DEP № 3717
mitigation, testing, Snyder County
current PA DEP № 3311
testing, Somerset County
current PA DEP № 3359
testing, Susquehanna County
current PA DEP № 3417
testing, Tioga County
current PA DEP № 3683
testing, Union County
current PA DEP № 3659
testing, Venango County
current PA DEP № 3750
testing, Venango County
current PA DEP № 3193
mitigation, testing, Warren County
current PA DEP № 9076
testing, Washington County
current PA DEP № 3569
testing, Washington County
current PA DEP № 2935
testing, Washington County
current PA DEP № 3238
mitigation, testing, Washington County
current PA DEP № 2880
testing, Washington County
current PA DEP № 3765
testing, Washington County
current PA DEP № 3397
testing, Washington County
Heritage Home Ins
current PA DEP № 3335
testing, Washington County
current PA DEP № 9131
testing, Washington County
current PA DEP № 3597
testing, Washington County
current PA DEP № 3701
testing, Washington County
current PA DEP № 3248
testing, Wayne County
current PA DEP № 3580
testing, Wayne County
All In One Home Ins
current PA DEP № 8755
testing, Wayne County
All In One Home In
current PA DEP № 9056
testing, Wayne County
current PA DEP № 3627
testing, Wayne County
current PA DEP № 3588
testing, Wayne County
current PA DEP № 3363
testing, Westmoreland County
Restoration
current PA DEP № 3219
mitigation, testing, Westmoreland County
current PA DEP № 3455
testing, Westmoreland County
current PA DEP № 3001
testing, Westmoreland County
current PA DEP № 1656
testing, Westmoreland County
current PA DEP № 3025
testing, Westmoreland County
Liberty Inspecto
current PA DEP № 9045
testing, Westmoreland County
current PA DEP № 3547
testing, Westmoreland County
current PA DEP № 2629
testing, Westmoreland County
current PA DEP № 3299
testing, Westmoreland County
Liberty Inspectors
current PA DEP № 9125
testing, Westmoreland County
current PA DEP № 3394
testing, Westmoreland County
current PA DEP № 3662
testing, Westmoreland County
current PA DEP № 3690
mitigation, testing, Westmoreland County
current PA DEP № 3631
mitigation, testing, Westmoreland County
current PA DEP № 3264
testing, Westmoreland County
Liberty Inspector
current PA DEP № 8908
testing, Westmoreland County
current PA DEP № 2258
testing, Westmoreland County
current PA DEP № 3660
testing, Westmoreland County
current PA DEP № 3140
testing, Westmoreland County
current PA DEP № 3646
testing, Westmoreland County
current PA DEP № 3689
mitigation, testing, Westmoreland County
current PA DEP № 3093
testing, York County
Homechek, Inc.
current PA DEP № 8438
testing, York County
current PA DEP № 3493
testing, York County
current PA DEP № 1631
testing, York County
Homechek, Inc.
current PA DEP № 1630
testing, York County
Homechek Inc
current PA DEP № 8760
testing, York County
current PA DEP № 2735
mitigation, testing, York County
current PA DEP № 1800
mitigation, testing, York County
Homechek Inc
current PA DEP № 8699
testing, York County
current PA DEP № 1965
mitigation, testing, York County
current PA DEP № 3674
testing, York County
Homechek, Inc.
current PA DEP № 9130
testing, York County
current PA DEP № 2977
mitigation, testing, Out Of State County
Partners Assessmen
current PA DEP № 8868
testing, Out Of State County
Professional Home Ins
current PA DEP № 8603
testing, Out Of State County
current PA DEP № 1494
testing, Out Of State County
current PA DEP № 3217
testing, Out Of State County
current PA DEP № 3691
testing, Out Of State County
current PA DEP № 3673
testing, Out Of State County
current PA DEP № 3686
testing, Out Of State County
Pro-spect Inspect
current PA DEP № 8990
testing, Out Of State County
Protect Enviro
current PA DEP № 9107
testing, Out Of State County
current PA DEP № 3524
testing, Out Of State County
Partner Assessmen
current PA DEP № 3204
mitigation, testing, Out Of State County
Geo Environmental
current PA DEP № 2590
mitigation, testing, Out Of State County
Pro-spect
current PA DEP № 9109
testing, Out Of State County
Protect Envi
current PA DEP № 3602
testing, Out Of State County
current PA DEP № 3730
testing, Out Of State County
current PA DEP № 3704
testing, Out Of State County
current PA DEP № 3688
testing, Out Of State County
current PA DEP № 3411
testing, Out Of State County
Certified Enviro
current PA DEP № 9092
testing, Out Of State County
current PA DEP № 3724
testing, Out Of State County
Rhis, Inc.
current PA DEP № 9143
testing, Out Of State County
Nova Gr
current PA DEP № 9061
testing, Out Of State County
Environmental Test
current PA DEP № 9121
testing, Out Of State County
current PA DEP № 3739
testing, Out Of State County
Geo Environmental
current PA DEP № 8884
testing, Out Of State County
current PA DEP № 2954
mitigation, testing, Out Of State County
Rhis Inc
current PA DEP № 8779
testing, Out Of State County
current PA DEP № 3608
testing, Out Of State County
Pro-spect
current PA DEP № 9111
testing, Out Of State County
current PA DEP № 9140
testing, Out Of State County
current PA DEP № 3401
testing, Out Of State County
Partner Assessme
current PA DEP № 9040
testing, Out Of State County
current PA DEP № 2571
testing, Out Of State County
Hillman Consult
current PA DEP № 9017
testing, Out Of State County
current PA DEP № 3604
testing, Out Of State County
Geo Environmental
current PA DEP № 8883
testing, Out Of State County
Partner Assess
current PA DEP № 8867
testing, Out Of State County
A-z Solutions, Inc
current PA DEP № 8942
testing, Out Of State County
Rhis, Inc.
current PA DEP № 1882
mitigation, testing, Out Of State County
Rhis, Inc.
current PA DEP № 8260
testing, Out Of State County
current PA DEP № 3751
testing, Out Of State County
Hillman Consulting L
current PA DEP № 8571
testing, Out Of State County
current PA DEP № 3121
testing, Out Of State County
current PA DEP № 3687
testing, Out Of State County
current PA DEP № 3749
testing, Out Of State County
Certified Enviroment
current PA DEP № 9093
testing, Out Of State County
Partner Assessment Cor
current PA DEP № 9034
testing, Out Of State County
current PA DEP № 9135
testing, Out Of State County
Pro-spect Inspection
current PA DEP № 8910
testing, Out Of State County
Protect Environmental
current PA DEP № 9108
testing, Out Of State County
Partner Assessment
current PA DEP № 9043
testing, Out Of State County
Professional Home Ins
current PA DEP № 9000
testing, Out Of State County
current PA DEP № 9137
testing, Out Of State County
A-z Solutions Inc
current PA DEP № 3312
mitigation, testing, Out Of State County
current PA DEP № 3593
testing, Out Of State County
current PA DEP № 3736
testing, Out Of State County
Pro-spect
current PA DEP № 9110
testing, Out Of State County
Commonwealth Home I
current PA DEP № 9059
testing, Out Of State County
current PA DEP № 3559
mitigation, testing, Out Of State County
Hillman Consulting,
current PA DEP № 9028
testing, Out Of State County
current PA DEP № 3644
testing, Out Of State County
current PA DEP № 9134
testing, Out Of State County
current PA DEP № 3635
testing, Out Of State County
current PA DEP № 3361
testing, Out Of State County
current PA DEP № 3205
mitigation, testing, Out Of State County
current PA DEP № 3267
testing, Out Of State County
current PA DEP № 3544
testing, Out Of State County
current PA DEP № 3628
testing, Out Of State County
current PA DEP № 3402
testing, Out Of State County
current PA DEP № 3715
testing, Out Of State County
Pro-spect Inspecti
current PA DEP № 9112
testing, Out Of State County
current PA DEP № 9139
testing, Out Of State County
Hillmann Consult
current PA DEP № 9074
testing, Out Of State County
current PA DEP № 1883
mitigation, testing, Out Of State County
current PA DEP № 3671
mitigation, testing, Out Of State County
current PA DEP № 3222
testing, Out Of State County
current PA DEP № 3636
testing, Out Of State County
Professional Home Insp
current PA DEP № 9001
testing, Out Of State County
current PA DEP № 3609
testing, Out Of State County
Partner Assessment C
current PA DEP № 9036
testing, Out Of State County
current PA DEP № 3615
testing, Out Of State County
Pro-spect Inspect
current PA DEP № 9083
testing, Out Of State County
current PA DEP № 9136
testing, Out Of State County
current PA DEP № 3702
testing, Out Of State County
current PA DEP № 9141
testing, Out Of State County
current PA DEP № 3713
testing, Out Of State County
current PA DEP № 3711
testing, Out Of State County
Pro-spect Inspectio
current PA DEP № 3757
testing, Out Of State County
Hillmann Consulting Ll
current PA DEP № 9117
testing, Out Of State County
current PA DEP № 3742
testing, Out Of State County
Guardian Home Ins
current PA DEP № 8864
testing, Out Of State County
current PA DEP № 9116
testing, Out Of State County
Pro-spect Inspection
current PA DEP № 8980
testing, Out Of State County
Pro-spect Insp
current PA DEP № 8768
testing, Out Of State County
current PA DEP № 3612
testing, Out Of State County
current PA DEP № 2953
testing, Out Of State County
current PA DEP № 2211
mitigation, testing, Out Of State County
current PA DEP № 3526
testing, Out Of State County
Environmental Te
current PA DEP № 3723
testing, Out Of State County
current PA DEP № 3703
testing, Out Of State County
current PA DEP № 3670
mitigation, testing, Out Of State County
Nova Group, Gbc
current PA DEP № 9144
testing, Out Of State County
Nova Group,
current PA DEP № 3634
testing, Out Of State County
Rhis, Inc.
current PA DEP № 9145
testing, Out Of State County
Environmental
current PA DEP № 9122
testing, Out Of State County
current PA DEP № 3719
testing, Out Of State County
Certified Enviro
current PA DEP № 9088
testing, Out Of State County
Fig. 4 — 504 of 612 listings have a mappable place. Each pin is a current listing at the Census city or county centroid on the file, approximate. Pins that share a place are spread so you can click them. Not street addresses. Appendix A
Questions before you hire How do I verify a radon credential listed for Pennsylvania? Open the source link on this page and match the name and credential number to PA DEP. Status can change after a record’s verification date. The latest record check on this page was October 13, 2026; check each record’s date. If the official page disagrees with this directory, trust the official page. We do not invent credential numbers.
Does EPA certify radon contractors? The U.S. EPA does not certify radon contractors. EPA publishes guidance on finding a qualified radon service provider and points to state programs and national certifications . This directory is not affiliated with EPA. We do not display EPA-certified badges.
What does last verified mean on this page? Last verified on an individual record is the date we checked its official source. The latest credential check on this page was October 13, 2026; other records may have earlier dates. We refresh the roster monthly. Current means the person appeared as currently credentialed on the source at that record’s verification date. Credentials can expire between refreshes, so follow the source link.
Appendix A.2
Before you hire Ask who holds the credential printed on this page, and ask them to show the same number. Some firms employ several credentialed people. The listing is the person or firm on the official file, not whoever answers the phone. Ask what test method or mitigation system they will use for this building. A credential is not a work plan. Testing and mitigation are separate services here, and a person appears on both lists only when the official file says they hold both. Ask how they will document test results or the finished mitigation system. Keep that document with the credential number you verified. This directory does not score jobs, publish reviews, or collect quotes. The full checklist: Certified radon tester: what they do and how to hire one
Pennsylvania DEP certifies individuals and firms that test or mitigate radon. The people below appear as currently certified on the DEP Radon Services Directory we imported. Read the methodology . Credential status can change.