Commercial Radon Mitigation Services
in Ottawa
Institutional-grade active soil depressurization (SSD) and airflow diagnostics for
corporate workplaces, regional schools, daycares, high-density residential
properties, and municipal structures.
Corporate Liability Shield
Proactive Radon Mitigation: Managing Workspace Risks
If your commercial facility, school, or multi-family rental block has tested elevated for radon gas, swift action is key. In Ontario, employers and landlords have a duty to maintain safe working and living conditions under Occupational Health and Safety (OHSA) guidelines. Active radon mitigation protects building occupants and secures your business assets from liability.
Defending Tenant Safety
Multi-family property groups are legally and ethically obligated to ensure sub-grade living rooms pass clean air baselines.
Workplace OHSA Duty
Securing compliance under general duty guidelines to proactively control workspace hazards.
Proactive Duty of Care
Installing permanent environmental mitigation systems protects real estate market value during sales audits.
Certified Environmental Records
Certified systems provide durable trace records for corporate insurance and regulatory boards.
MITIGATION OUTCOMES
System Deliverables
99% Proven Radon Reduction
Guaranteed to drop radon far below 200 Bq/m³ limit.
CAD Engineering Design Drawings
Custom routing paths detailed for institutional archives.
PFE Pressure Field Diagnostics
Continuous sub-slab suction mapping guarantees performance.
Proven Engineering
Our Professional Commercial Radon Mitigation Solutions
Active Sub-Slab Depressurization (SSD)
The primary strategy. Creating negative sub-slab air pressure with continuous commercial fans to stop radon at the foundation.
Pressure Field Extension (PFE) Diagnostics
Precision engineering. We drill micro-test holes to measure sub-slab resistance, guaranteeing full pressure field coverage.
HVAC Fresh Air Balance Tuning
Using mechanical systems. Adjusting building intake and exhaust airflow ratios to maintain positive floor pressure and block gas.
Industrial Membrane & Crack Sealing
Dual protection. Applying high-performance polyurethane elastomeric seals along structural slab joints, plumbing, and utility penetrations.
Rigorous Standards
Active Soil Depressurization Engineering
We replace guesswork with continuous sub-slab pressure field diagnostics.
Example Active Soil Depressurization CAD Blueprint
PFE Draw Zone
Active Depressurization Duct
C-NRPP ENGINEERING
Our Professional Installation Protocols
Diagnostic Sub-Slab Testing
Before running pipes, we core a tiny test hole to measure how easily air flows through the sub-slab gravel.Sump and Crack Sealing
Sealing all crawlspace soils and structural foundation cracks to maximize sub-slab negative pressure.High-Readability System Alarms
Installing physical and continuous digital pressure monitoring systems that sound alerts if the fan ever loses suction.External Active Discharge Routing
Exhaust lines are routed and terminated above the highest roofline to safely disperse radon gas.
Integrated Workflow
What to Expect: Commercial Mitigation Stages
Site Survey
1. Diagnostic Audit & PFE Testing
We perform micro-core tests under the concrete slab to map clay resistance, determining the optimal suction point configuration.
Engineering
2. Custom CAD System Design
We design discrete utility routing pathways, selecting heavy-duty fans and matching interior decibel constraints.
Implementation
3. Installation & Sealing
Our certified C-NRPP technicians drill suction pits, lay durable Schedule 40 piping, and seal foundation cracks.
CNSC Compliant
4. Verification & Handover
We run secondary 48-hour continuous verification tests, deliver CAD drawings, and provide compliance logs for stakeholders.
Proven Case Studies
Ottawa Commercial Radon Success Stories
Centretown, Ottawa
Verified Audit
4-Storey Office Building (22,000 sq ft)
Installed a dual-suction commercial SSD system with roof-mounted fan blower, operating completely outside tenant working hours.
Before
380 Bq/m³
After
22 Bq/m³
Nepean, Ottawa
Verified Audit
Licensed Daycare & Learning Hub
Implemented low-noise interior active piping routed through back utility closets, featuring continuous pressure monitoring gauges.
Before
290 Bq/m³
After
15 Bq/m³
Kanata, Ottawa
Verified Audit
32-Unit Residential Apartment Block
Constructed sub-slab suction points across two foundation tiers with quiet-running fan housings, including tenant newsletters.
Before
450 Bq/m³
After
32 Bq/m³
Corporate Trust & Credentials
Professional Environmental
Compliance Credentials
We provide institutional stakeholders with full legal-compliance
packages, active certifications, and robust project insurance.
C-NRPP Certified Techs
National Accreditation
Every project design is supervised and signed off by a certified Canadian National Radon Proficiency Program specialist.
Full Workspace Insurance
$5M Liability & WSIB Cover
Our crews operate under strict institutional risk profiles, backed by full commercial general liability coverage.
Canadian Engineering Standards
Health Canada Protocols
We engineer each active system to meet or exceed Health Canada and CARST commercial radon reduction guidelines.
Frequently Asked Questions
Commercial Mitigation FAQ
What makes commercial radon mitigation different from standard residential installations?
Commercial mitigation requires complex engineering diagnostics due to larger slab footprints, thicker concrete, and centralized commercial HVAC systems. We perform Pressure Field Extension (PFE) diagnostics to calculate the correct suction radius, utilize high-capacity continuous fans, and coordinate with existing fire protection and ventilation structures to maintain building compliance.
Will the installation disrupt our corporate offices or school learning schedules?
No. We understand the importance of business continuity. We coordinate all heavy drilling, concrete coring, and noise-intensive installation stages during evenings, weekends, or academic holidays to eliminate disruption for your employees, students, or tenants.
Are We Mitigate Radon commercial technicians fully licensed and insured?
Yes. All our project leads are C-NRPP Certified (Canadian National Radon Proficiency Program) for commercial diagnostics and active mitigation. We carry $5M in commercial general liability insurance, full WSIB coverage, and follow rigorous CSA and Health Canada safety codes.
Do you provide long-term systems performance documentation for regulatory boards?
Absolutely. Every commercial mitigation project includes a comprehensive master closeout package. This includes as-built CAD diagrams, sub-slab pressure validation metrics, continuous 48-hour post-mitigation radon charts, certified lab certificates, and a complete system operation guide.
What is the typical lifespan and energy consumption of a commercial radon fan?
Our continuous-duty, German-engineered commercial fans have an operating lifespan of 10 to 15 years. They are exceptionally efficient, consuming roughly 80 to 150 watts of electricity (about the same as a couple of standard light bulbs), resulting in low operating costs.
How can we obtain an institutional quote or bid proposal for our building portfolio?
Simply use our online contact request form or call our Ottawa commercial desk. We will arrange a review of your floor plan blueprints, arrange a site visit, and deliver a comprehensive flat-rate project bid within 3 to 5 business days.
We Mitigate Radon is a collaborative team of licensed and highly experienced professionals specializing in HVAC systems, mechanical engineering, climate control, and indoor air quality.
ACCREDITATIONS
TSSA-licensed
certified indoor air quality specialists with more than 26 years of experience serving Ottawa and the surrounding region.
100% Guaranteed
Mitigation systems guaranteed to lower levels below Health Canada guide limits.
© 2026 We Mitigate Radon. All rights reserved.
All systems architected as per EPA & Health Canada active environmental guidelines.