Canada Radon
Verified Pro
~13 years online5.0(27)
Radon Mitigation in London, ON
Compare 32 radon mitigation contractors near you in London and surrounding area with an average rating of 4.6/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 28, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
Other Businesses in This Area
C-NRPP-Certified Radon Gas Testing
JAM (3993) Enterprises
2+ years onlineJohn Ainsley Marshall o/a JAM (2005) Entetprises
2+ years onlineWater Damage
Comfort Zone Services
5.0Green Reno Home Inspections Inc
5.0Kingston Radon Solutions
5.0Mitigair
5.05½+ years onlineRadon Gas Guys
5.05+ years onlineRajeh Energy & Engineering Stewards
5.0South West Radon
5.0ThermoPhoto Inc.
5.0Advanced Basement Systems
4.919½+ years onlineIcon Home Inspections Inc.
4.9~15 years onlineRadon Gas Expert
4.7FIRST ONSITE Property Restoration
4.6Active Environmental Safety
4.39 mo onlineMold Removal London
1.07½+ years onlineRadon Mitigation in Nearby ON Cities
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Radon Mitigation in London, ON
Radon mitigation in London (Ontario) serves a Southwest Ontario market: single-family homes, basement-construction (predominant), and townhouses. Ontario shows variable radon — Health Canada data shows elevated in 10-20% of basement homes. Typical jobs include sub-slab depressurization for basements.
Residential radon mitigation in London ON runs $2,000-$4,500 CAD. Ontario doesn't require radon-specific licensing; C-NRPP certification standard. London permits for electrical work.
Frequently Asked Questions
- Does London ON have radon?
- Yes — 10-20% of basement homes test elevated.
- Heritage Conservation?
- Woodfield review for exterior venting.
- What's typical cost?
- $2,000-$4,500 CAD.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across London 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.