Radon Contractors in Chicago, IL

24 radon mitigation and testing specialists serving Chicago and the surrounding area — residential and commercial properties.

EPA action level: 4 pCi/L · NRPP/NRSB certified professionals · Residential & commercial radon services

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Midwest Radon Services, Inc. | Radon Mitigation Chicago & Elmhurst IL

9825 Roosevelt Rd, Westchester, IL 60154, USA

5.0(469 reviews)

(708) 726-4851

Radon Gone, LLC

1853 W Estes Ave, Chicago, IL 60626, USA

5.0(57 reviews)

(847) 668-5313

Inspect It Chicago - Radon Mitigation & Testing

200 N Elmwood Ave, Oak Park, IL 60302, USA

5.0(65 reviews)

(630) 890-8634

NorthWest Radon Testing

1204 W Busse Ave, Mt Prospect, IL 60056, USA

5.0(72 reviews)

(847) 877-4050

Radon Professional Services, LLC.

840 S Lombard Ave, Oak Park, IL 60304, USA

5.0(66 reviews)

(708) 935-3206

American Radon Systems

8424 Brookpoint Ct, Tinley Park, IL 60487, USA

5.0(640 reviews)

(815) 370-9682

Professional Radon Systems, Inc

10212 S Mandel St B, Plainfield, IL 60585, USA

5.0(196 reviews)

(630) 236-4200

Guardian Radon Mitigation & Electrical Services

451 Burr Oak Dr, Oswego, IL 60543, USA

5.0(123 reviews)

(630) 768-9836

Radon Reduction Systems Inc

1113 Cardinal Ln, Naperville, IL 60540, USA

5.0(8 reviews)

(630) 357-9474

Summit Radon Mitigations, LLC.

7824 Willowood Ct, Orland Park, IL 60462, USA

5.0(35 reviews)

(773) 710-5891

Illinois Valley Radon Mitigation

717 Bellevue Ave, Ottawa, IL 61350, USA

5.0(24 reviews)

(815) 313-5892

Radon Testers Inc

130 W Liberty Dr #200, Wheaton, IL 60187, USA

5.0(14 reviews)

(630) 260-0700

Merino's Home Inspection & Education Inc. & Progeny Radon Testing Services

14824 Forest Edge St, Oak Forest, IL 60452, USA

5.0(121 reviews)

(708) 612-6679

Marvel Radon Experts

1314 Kensington Rd, Oak Brook, IL 60523, USA

5.0(91 reviews)

(630) 708-8667

Pro Radon Mitigations

2008 Ernest Ln, Johnsburg, IL 60051, USA

5.0(70 reviews)

(815) 287-9100

Northern Illinois Radon, LLC / US Environmental Testing

406 Ramblewood Dr C, Glen Ellyn, IL 60137, USA

5.0(16 reviews)

(724) 467-7328

Radon Tec/ Radon Testing Service

446 N Lake St, Mundelein, IL 60060, USA

5.0(5 reviews)

(312) 246-2756

Dupage Radon Testing, Inc

29W530 Prairie Ave, Warrenville, IL 60555, USA

4.9(87 reviews)

(630) 225-7997

Stuedemann Radon Resolutions

2864 E 2539th Rd, Marseilles, IL 61341, USA

4.9(461 reviews)

(815) 343-7091

VSI Radon Reduction Corp

27900 W Concrete Dr, Ingleside, IL 60041, USA

4.8(64 reviews)

(815) 344-1100

DuPage Radon Contractors

30W260 Butterfield Rd UNIT 210, Warrenville, IL 60555, USA

4.7(111 reviews)

(630) 216-4615

Inspect It Chicago - Radon Testing & Mitigation

15044 Landings Ln, Oak Forest, IL 60452, USA

4.6(14 reviews)

(630) 890-8634

Protect Environmental

590 Territorial Dr suite a, Bolingbrook, IL 60440, USA

4.5(39 reviews)

(630) 519-6747

Radon Detection Specialists

825 N Cass Ave UNIT 310, Westmont, IL 60559, USA

4.1(17 reviews)

(630) 325-4443

Commercial Radon Services in Chicago, IL

Radon is not just a residential concern. Office buildings, schools, warehouses, retail centers, and multi-family complexes in Chicago are all subject to radon intrusion through concrete slabs, block foundations, and crawl spaces. Commercial radon mitigation in Chicagofollows EPA large-building protocols, requires certified measurement professionals, and involves mitigation systems scaled to the property's square footage and occupancy type.

Commercial Testing

Multi-point alpha track or continuous electronic monitor deployment across all occupied zones per EPA large-building protocol. Required for OSHA compliance and real estate due diligence in Chicago.

Commercial Mitigation

Sub-slab depressurization systems, crawl space encapsulation, and HVAC-integrated ventilation upgrades sized for commercial square footage. Chicago contractors handle buildings from small suites to large industrial properties.

Monitoring & Certification

Post-mitigation verification, ongoing radon monitoring systems, and certification documentation for property managers, lenders, and insurers in Chicago and the surrounding IL region.

Commercial Radon FAQ — Chicago

What is commercial radon mitigation in Chicago?
Commercial radon mitigation in Chicago involves installing sub-slab depressurization systems, crawl space encapsulation, and ventilation upgrades in office buildings, warehouses, schools, retail spaces, and multi-family units. Commercial systems are scaled to the building's square footage and HVAC layout — they differ significantly from residential systems in design, permitting, and ongoing monitoring requirements.
How is commercial radon testing different from residential testing?
Commercial radon testing in Chicago, IL typically follows EPA protocols for large buildings (EPA 402-K-93-001), which require multiple test devices per floor and longer measurement periods than home tests. Certified radon measurement professionals deploy long-term alpha track detectors or continuous electronic monitors across all occupied and sub-occupied zones.
Which Chicago radon contractors handle commercial buildings?
Several radon contractors serving Chicago hold NRPP or NRSB commercial certifications for large-structure mitigation and testing. Contact the specialists listed on this page to confirm commercial service availability, as some firms specialize exclusively in residential properties.
What radon level triggers mitigation in a commercial building?
OSHA and the EPA both recommend action at or above 4 pCi/L for occupied commercial and industrial spaces. Many Chicago property managers choose to mitigate at 2–3 pCi/L to stay well below regulatory thresholds and reduce liability exposure. Schools and healthcare facilities often target sub-2 pCi/L levels.
How much does commercial radon mitigation cost in Chicago?
Commercial radon mitigation systems in Chicago typically range from $1,500 for small retail suites to $25,000+ for large industrial or multi-story buildings. Cost depends on slab area, number of sub-slab suction points, existing HVAC infrastructure, and post-mitigation verification testing. Request quotes from multiple licensed contractors listed on this page.

Need commercial radon mitigation or testing in Chicago? Contact the certified specialists listed above. Confirm commercial availability when scheduling — some contractors serve residential clients only.