Black & McDonald’s Southwest Ontario Region offices provides proven expertise, a customer-centric approach and commitment to Quality. Whether its HVAC, Refrigeration, Electrical, Plumbing, Energy & Sustainability Services or Technical & Mechanical Services, we are on a mission to do things right and build relationships that stand the test of time.
Black & McDonald’s Sarnia office delivers high-quality electrical construction and maintenance services to commercial and industrial clients across the region. Backed by a national network, our team specializes in installations, system upgrades, and emergency support—tailored to meet each client’s operational needs. With a focus on safety, efficiency, and reliability, we ensure your infrastructure performs at its best.
What We Offer:
HVAC & Refrigeration Services
- Industrial & Ammonia Refrigeration Systems
- Rooftop Units, Chillers, Server Room Cooling
- Process Cooling & Ventilation Solutions
Plumbing & Mechanical Services
- Backflow Prevention, Chemical & Process Piping
- Water Main Repairs, Pump Builds
- TSSA-Compliant Plumbing Services
Boilers & Combustion Services
- Boiler Maintenance & Hydronic Heating
- Combustion System Optimization
- Gas Piping & Burner Services
Energy & Sustainability Services
- Energy Audits & Monitoring
- Net-Zero & Decarbonization Planning
- Building Optimization & Lifecycle Asset Management
- BAS & IoT Integration for Smart Facilities
Electrical & Controls Services
- High Voltage Electrical Services
- Switchgear & Transformer Maintenance
- Building Automation & Control Systems
Why Partner with Us – Proudly Serving Sarnia, Chatham and Surrounding Areas
- Rooted in Sarnia, Backed by National Expertise
Our team lives and works in the Sarnia community, bringing local insight and national standards to every project.
- Fast, Reliable Service – 24/7
Whether it’s a plant shutdown or a facility emergency, our Sarnia-based technicians are ready to respond—day or night.
- Certified & Compliant
We meet and exceed Ontario’s regulatory standards, including TSSA and ESA, ensuring safe and compliant operations.
- Energy Savings That Matter
We help Sarnia businesses cut energy costs and improve sustainability through smart monitoring and optimization.
- Tailored Facility Maintenance Services & Planning
We build custom plans that align with your facility’s goals and budget.
Services We Offer
Get In Touch
Join Our Team
You believe that if something’s worth doing, it’s worth doing right. That solutions should be made to last. That being part of a team means working not just for oneself but for one another. That’s how we operate too.
