Radon Contractors in Manchester, NH

21 radon mitigation and testing specialists serving Manchester and the surrounding area — residential and commercial properties.

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

Step 1: Test Your Home

Radon Test Kits — From $15 on Amazon

The EPA recommends testing every home below the third floor. Short-term charcoal test kits deliver results in 2–7 days.

MasterOfDirectories earns a small commission on qualifying Amazon purchases at no extra cost to you.

Shop Radon Test Kits →

Household Environmental

9 South Ave, Derry, NH 03038, USA

5.0(277 reviews)

(866) 867-2366

AirFlowPro

9 Londonderry Tpke, Hooksett, NH 03106, USA

5.0(6 reviews)

(978) 758-2953

Northern Vista Home Inspection & Radon Mitigation

39 Remich St, Littleton, NH 03561, USA

5.0(93 reviews)

(802) 745-7020

Radon Mitigation Services of Maine, LLC

66 King Pine Dr, Holden, ME 04429, USA

5.0(100 reviews)

(207) 478-8885

Radon Reduction and Moisture Control LLC

1848 E Main St, Center Conway, NH 03813, USA

5.0(4 reviews)

(603) 616-2971

Neighborhood Electric and Radon Reduction Services

35 Merrill Dr, Bennington, NH 03442, USA

5.0(3 reviews)

(603) 831-6852

IndoorDoctor

35 Manchester Rd, Derry, NH 03038, USA

5.0(95 reviews)

(603) 505-4347

Draghi Environmental Services Inc

9 South Ave, Derry, NH 03038, USA

5.0(3 reviews)

(603) 437-1352

Alpha Building Inspections

381 Daniel Webster Hwy, Merrimack, NH 03054, USA

5.0(1,962 reviews)

(603) 816-1014

Hometown Inspection Services LLC

4605 Brown Ave, Manchester, NH 03103, USA

5.0(7 reviews)

(603) 809-7075

Advanced Radon Mitigation & Water Treatment

180 Londonderry Tpke STE 1, Hooksett, NH 03106, USA

4.9(304 reviews)

(603) 644-1207

Groundworks

3 Eastpoint Dr, Hooksett, NH 03106, USA

4.9(568 reviews)

(603) 377-8559

Maine Radon & Water Treatment

243 Roosevelt Trail #1, Windham, ME 04062, USA

4.9(268 reviews)

(207) 503-3888

Secondwind Water Systems, Inc.

735 E Industrial Park Dr, Manchester, NH 03109, USA

4.9(1,107 reviews)

(603) 641-5767

Erickson Foundation Solutions

14 Clement Rd, Hudson, NH 03051, USA

4.8(675 reviews)

(603) 263-4404

Silver Environmental

636 Howe St, Manchester, NH 03103, USA

4.8(18 reviews)

(603) 264-9880

Heritage Home Service

28 Commercial Ct, Auburn, NH 03032, USA

4.8(8,106 reviews)

(603) 627-2730

Radon Diagnostic Services

89 N Main St #1, Andover, MA 01810, USA

4.7(14 reviews)

(978) 475-1977

Radon Clear LLC - NH Certified, Locally Owned, Radon Air Mitigation Specialists

30 Belanger Dr, Dover, NH 03820, USA

4.6(19 reviews)

(603) 436-8877

SERVPRO of Manchester

571 Holt Ave, Manchester, NH 03109, USA

4.5(91 reviews)

(603) 669-7733

New England Radon

11A Industrial Way #3, Salem, NH 03079, USA

3.1(31 reviews)

(603) 893-4260

Commercial Radon Services in Manchester, NH

Radon is not just a residential concern. Office buildings, schools, warehouses, retail centers, and multi-family complexes in Manchester are all subject to radon intrusion through concrete slabs, block foundations, and crawl spaces. Commercial radon mitigation in Manchesterfollows 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 Manchester.

Commercial Mitigation

Sub-slab depressurization systems, crawl space encapsulation, and HVAC-integrated ventilation upgrades sized for commercial square footage. Manchester 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 Manchester and the surrounding NH region.

Commercial Radon FAQ — Manchester

What is commercial radon mitigation in Manchester?
Commercial radon mitigation in Manchester 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 Manchester, NH 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 Manchester radon contractors handle commercial buildings?
Several radon contractors serving Manchester 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 Manchester 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 Manchester?
Commercial radon mitigation systems in Manchester 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 Manchester? Contact the certified specialists listed above. Confirm commercial availability when scheduling — some contractors serve residential clients only.