Protect Your Building – Why Legionella Risk Assessments Should Be a Priority in Southwestern Ontario
- July 11, 2025
- Posted by: Chris Croft
- Category: Environmental Consulting

If you’re a property manager, facility operator, healthcare administrator, or maintenance supervisor in Southwestern Ontario, there’s a critical threat you can’t afford to ignore: Legionella. This waterborne bacterium is responsible for Legionnaires’ disease, a serious form of pneumonia that can be fatal—especially for seniors, immunocompromised individuals, and those with chronic illnesses.
Recently, an outbreak of Legionnaires’ disease was confirmed in London, Ontario, drawing attention to the real and immediate risk posed by Legionella in our region. Events like this underscore the importance of proactive testing and risk management in all types of buildings.
That’s where IES Consulting Group comes in.
What Is Legionella and Why Should You Be Concerned?
Legionella bacteria thrive in warm, stagnant water found in many common building systems, such as:
- Domestic hot and cold water systems
- Cooling towers and evaporative condensers
- Misting systems and decorative fountains
- Showers, spas, and humidifiers
When these systems aerosolize contaminated water, people nearby can inhale it—leading to infection. Hospitals, care homes, apartments, schools, and office buildings are particularly vulnerable. The recent outbreak in London is a stark reminder that no facility is immune.
Who Needs a Legionella Risk Assessment?
If you manage or operate:
- Healthcare facilities, clinics, or long-term care homes
- Multi-residential buildings (condos, apartments)
- Educational institutions (schools, colleges, universities)
- Commercial and industrial buildings
- Hotels, recreation centres, or gyms
- Facilities with cooling towers, showers, or water features
You should be performing regular Legionella risk assessments and water sampling to protect occupants and demonstrate due diligence.
Why Choose IES for Legionella Testing in Southwestern Ontario?
At IES Consulting Group, we provide expert Legionella risk assessments and sampling services across Windsor, London, Sarnia, Chatham-Kent, St. Thomas, Stratford, Woodstock, and all surrounding areas. Our team brings deep expertise and regulatory awareness to every project, including:
- On-site evaluations of water systems and risk areas
- Legionella testing using both culture-based and qPCR methods
- Development of site-specific Water Management Plans
- Comprehensive, clear reports with actionable recommendations
- Guidance on compliance with ASHRAE 188, Health Canada, and industry standards
We also offer support for preventive strategies that minimize your building’s risk before an issue arises.
Serving All Cities in Southwestern Ontario
Whether you’re located in London, Windsor, Sarnia, Chatham, Leamington, Goderich, Simcoe, Tillsonburg, or Stratford, IES is your trusted partner for professional, cost-effective Legionella testing and risk assessment.
A recent outbreak in London is a wake-up call. Take action before your building becomes the next headline.
Contact IES Consulting Group today to schedule your Legionella Risk Assessment.
Contact us today.