Hiring radon mitigation in Minnesota: what to know
Radon mitigation contractors test for and reduce radon gas levels in homes. Radon mitigation contractors perform radon testing, install sub-slab depressurization systems with fans and piping, seal cracks and sump pits, and verify reduced levels with follow-up testing.
How much do radon mitigation cost?
Typical U.S. pricing is $900–$2,500 for a typical mitigation system. What moves the price:
| Cost factor | Why it matters |
|---|---|
| Foundation type | Slabs, crawlspaces and basements vary. |
| Soil permeability | Tight soils may need more suction points. |
| Pipe routing | Interior versus exterior routing affects cost. |
| Sealing | Sump lids and crack sealing add cost. |
| Testing | Post-mitigation testing confirms results. |
How to hire a radon mitigation contractor
- Verify state certification. Iowa, Minnesota, Illinois and Nebraska credential radon professionals.
- Ask about post-mitigation testing. Confirm levels below 4 pCi/L.
- Discuss fan placement. Fans should be outside living space.
- Check warranty. Ask about fan and performance warranties.
- Ask about system monitoring. Manometers show the system is working.
Red flags to watch for
- Not state certified where required
- No post-mitigation test
- Fan installed in living space
- Guarantees zero radon
Licensing in Minnesota
Radon testers and mitigators must be state-certified in Iowa, Minnesota, Illinois and Nebraska; other states rely on national certification programs.
The Minnesota Department of Labor and Industry licenses residential building contractors, remodelers and roofers. Electricians and plumbers hold separate state licenses, and radon professionals must be licensed by the Minnesota Department of Health.
Best time to hire
Radon testing and mitigation are year-round; winter testing often shows higher levels.
Related services
- Mold RemediationMold remediation contractors remove mold and fix the moisture that causes it.
- WaterproofingBasement waterproofing contractors stop leaks with drainage systems, sump pumps and sealing.
- HVAC ContractorsHVAC contractors install, service and repair furnaces, air conditioners, heat pumps and ductwork.