Radon Testing & Mitigation
Residential & Commercial Radon Services
RBM Group provides professional radon testing, mitigation, and verification for both homes and commercial / multi‑unit buildings. The approach is different for each—but the goal is the same: clear data, proven systems, and documented results.
Service Area
Southern and Central Ontario
Residential Radon Services
Radon Is Invisible. Testing Is the Only Way to Know.
Radon levels vary significantly from home to home, even on the same street. Assumptions don't work.
Residential Radon Testing
We help homeowners and real estate clients measure radon properly and understand what the results actually mean.
Guidance on proper detector placement (lowest occupied level, breathing zone)
Test options based on your timeline (long‑term recommended)
Clear results summary and next‑step recommendations
Best practice: long‑term testing provides a more representative average exposure.
Residential Radon Mitigation
If testing shows elevated radon, mitigation is the permanent solution.
Most homes are corrected using a sub‑slab depressurization system (SSDS). This system draws soil gas from beneath the foundation and vents it safely outdoors—reducing radon entry into the living space.
What our residential mitigation includes:
On‑site assessment of foundation type and routing options
Proper fan sizing and system layout (not one‑size‑fits‑all)
Clean, professional installation
Attention to noise, appearance, and durability
Homeowner walkthrough and system explanation
Post‑Mitigation Verification
A mitigation system isn't complete until it's verified.
We provide follow‑up testing to confirm performance and document results for your records or real estate file.
For Realtors
Radon in a transaction needs to be handled professionally and efficiently.
We support realtors with:
- Timeline‑aware scheduling
- Simple, non‑alarmist explanations for clients
- Written documentation suitable for condition fulfillment
Commercial & Multi-Unit Radon Services
Professional radon solutions for commercial, institutional, and multi-unit buildings
Commercial Radon Testing
Commercial radon testing is planned around building use, occupancy patterns, HVAC operation, and floor area.
Our commercial testing services include:
Building‑specific test plans (device count, locations, duration)
Short‑term or phased testing where timelines require it
Long‑term testing programs for representative average exposure
Coordination with facility staff to maintain valid test conditions
Clear reporting suitable for owners, consultants, and insurers
Deliverables:
- Test layout plan
- Results summary with interpretation
- Practical recommendations (monitor, expand testing, or mitigate)
Commercial Radon Mitigation & System Design
When elevated radon is identified, mitigation must be engineered to the building.
RBM Group designs and installs commercial radon mitigation systems that may include:
Sub‑slab or sub‑membrane depressurization
Multiple extraction points for large footprints
High‑capacity or redundant fan configurations
Integration with existing mechanical and electrical systems
Consideration for noise, vibration, and occupied spaces
Systems are designed for continuous operation, performance reliability, and minimal disruption.
Post‑Mitigation Verification & Ongoing Monitoring
For commercial and institutional properties, documentation matters.
We provide:
- Post‑mitigation verification testing
- Before/after performance summaries
- Optional periodic re‑testing or monitoring plans
Multi‑Unit Residential Buildings
Apartments and condos present unique challenges:
- Stack effect and pressure differences
- Shared slabs and utility chases
- Occupied units during testing and mitigation
We offer unit‑level testing programs, common‑area testing, and centralized mitigation strategies designed to reduce exposure across the building.
Who We Work With
Trusted radon services for diverse clients across Ontario
Homeowners
Realtors and brokers
Commercial property owners
Property and facility managers
Developers and builders
Engineers and building consultants
Municipal and institutional clients
Ready to Test or Mitigate?
Get started with professional radon services. Whether you need testing, mitigation, or verification—we're here to help.