Our Services
T. Harris Environmental Management Inc. (THEM) is a leading Canadian environmental consulting firm in the following fields:
- Environmental Services
- Hazardous Materials Management
- Occupational Health & Safety
Our professional staff serve a wide range of clientele including industrial, commercial, institutional (ICI), and residential.
We inspire and empower companies to achieve excellence in creating safe and healthy environments. We strive to create an engaged, proactive society which values and protects the health and safety of people and the environment.
Hazardous Building Materials Management
Environmental
Due Diligence & Remediation
Occupational Health & Safety
Health & Safety for Homeowners
What We Stand For
We are passionate about health & safety and committed to excellence. Since 1979, we continue to provide high quality services. We take pride in building long-term relationships with our clients. We are dedicated to understanding your concerns and meeting your needs by delivering efficient, cost-effective solutions.
Featured News
MLITSD Compliance Blitzes 2025-2026: Key Inspection Focus Areas
The MLITSD has released its 2025–2026 compliance initiatives, highlighting key focus areas and inspection blitzes across construction, healthcare, industrial, mining, retail, and professional services.
How to Prepare for a Surprise MLITSD Inspection
Allergy season can pose serious risks to respiratory-compromised patients in healthcare settings. Our latest guide outlines five essential steps facility managers can take to reduce indoor allergens and improve air quality—from HVAC maintenance to humidity control and staff training.
Top 5 Issues When Switching from Heat to A/C
Switching from heat to A/C? Don’t overlook the hidden impact on indoor air quality. From dust and mould build-up to poor ventilation and VOC exposure, seasonal HVAC transitions can create serious health and comfort issues for occupants. In this article, we break down the top 5 indoor air quality problems that emerge during the switch to cooling—and the practical steps you can take to solve them.
Global OHS Updates
Discover the latest in occupational health and safety—from AI-driven workplace systems in Europe to Ontario’s recognition of ISO 45001 and COR certifications. This special update, researched and creatively compiled by THEM’s Occupational/Industrial Hygienist Kenny Li, highlights key developments that could impact compliance, safety practices, and procurement processes across industries.