AirFlowPro
Verified Pro
~18 years online5.0
Radon Mitigation in Nashua, NH
Compare 21 radon mitigation contractors near you in Nashua and surrounding area with an average rating of 4.8/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 22, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
airflowpro.com
Advanced Radon Mitigation & Water Treatment
Verified Pro
~25 years online4.9(303)
SWAT Radon Mitigation
Verified Pro
12+ years online4.9
Radon Clear LLC - NH Certified, Locally Owned, Radon Air Mitigation Specialists
Verified Pro
21+ years online4.6(19)
Other Businesses in This Area
Alpha Building Inspections
5.010½+ years onlineBlack Dog Inspections, LLC
5.022+ years onlineHomeTeam of Southern New Hampshire
5.0~31 years onlineHousehold Environmental
5.0~19 years onlineNorthern Vista Home Inspection & Radon Mitigation
5.016½+ years onlineRadon Reduction and Moisture Control LLC
5.0Skillings & Sons LLC
4.927½+ years onlineErickson Foundation Solutions
4.811+ years onlineNE Disaster Solutions
4.83½+ years onlineRadonAway
4.829+ years onlineRadon Diagnostic Services
4.717½+ years onlineErickson Construction Co., Inc.
4.6Coletta Radon Systems
4.5Reliable Radon, LLC
4.515 years onlineNew England Radon
3.223½+ years onlineRadon Mitigation in Nearby NH Cities
Other Services in Nashua
Access Control & Intercom(39)Alarm System Installation(20)Appliance Installation(19)Artificial Turf Installation(29)Automotive Installs(2)Concrete & Paving(36)Deck & Patio Building(35)Electrical Services(24)EV Charger Installation(12)Fencing & Gate Installation(30)Fire Protection & Sprinklers(30)Garage Door Installation(21)
About Radon Mitigation in Nashua
Radon mitigation reduces radon gas levels in buildings, typically through sub-slab depressurization — a system that creates suction beneath the foundation to draw radon gas out before it enters living spaces. Radon is the second leading cause of lung cancer after smoking.
Typical costs: A standard sub-slab depressurization system runs $800–$2,500 installed. More complex situations (crawl spaces, multiple suction points) can be $2,000–$4,000. Radon testing before and after is typically included.
Common projects include:
- Sub-slab depressurization system
- Crawl space radon mitigation
- Radon testing and monitoring
- Sump pit sealing and venting
- New construction radon-resistant design
Many states require radon mitigation contractors to be specifically certified. Permits may be required for the system installation depending on jurisdiction.
Frequently Asked Questions
- How much does radon mitigation cost in Nashua?
- Most homes can be mitigated for $800–$2,500 with a sub-slab depressurization system. This includes the fan, PVC piping, sealing, and post-mitigation testing. The system runs continuously and costs about $50–$100/year in electricity. More complex jobs (crawl spaces, multiple foundation types) run $2,000–$4,000.
- How do I find a reliable radon mitigation contractor in Nashua?
- Use a certified radon mitigator (NRPP or state-certified). They should test before and after installation and guarantee results below 4 pCi/L (the EPA action level). Ask about fan warranty and what happens if the system doesn't achieve target levels.
- Do I need a permit for radon mitigation in Nashua?
- Requirements vary by state. Many states require radon contractors to be certified (not just licensed). Some require permits for the penetration through the foundation slab. Check your state's radon program for specific requirements.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Nashua and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.