Daikin Factory Certified Installer

Commercial HVAC & Refrigeration Experts

Owner-led, built for commercial — not adapted from residential. Serving Southwestern Ontario with 18+ years of industry expertise.

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Professional Commercial & Industrial Services

Sheet Metal Fabrication

  • Custom Sheet Metal Fabrication & Ductwork
  • Duct Transitions & Curb Connections
  • Maintenance & Repair

Rooftop Unit Installation

  • Commercial Rooftop Units — Full Installation & Replacement
  • Structural & Rooftop Coordination
  • Maintenance & Repair

Refrigeration Systems

  • HVAC & Refrigeration Systems
  • Gas, Refrigeration & System Commissioning
  • Maintenance & Repair

About Us

Over 18 years of industry experience serving Southwestern Ontario. DC Mechanical is owner-led and purpose-built for commercial HVAC — not adapted from residential.

We specialize in custom sheet metal fabrication and installation for commercial rooftop units, mechanical rooms, tight retrofit spaces, and projects demanding proper airflow and system performance.

TSSA Certified

DaikinMitsubishiLG

Factory Install Certified

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ReliableExperiencedTSSA Certified

Why Choose DC Mechanical

Built for commercial. Faster installs, fewer issues, and reduced impact on your business hours.

Owner-Led Experience

Direct involvement from an owner with 18+ years of hands-on commercial HVAC experience. Your project gets personal attention from start to finish.

Custom Sheet Metal Expertise

In-house fabrication for commercial rooftop units, mechanical rooms, and tight retrofit spaces. Precision-built for proper airflow and performance.

Built for Commercial — Not Residential

Purpose-built systems, processes, and expertise for commercial and industrial scale. We don't adapt residential approaches.

Full RTU Capabilities

Complete rooftop unit installation, structural coordination, duct transitions, curb connections, and system commissioning.

Certified & Trusted

TSSA Certified with factory install certifications from Daikin, Mitsubishi, and LG. The credentials that back up the quality.

Minimal Business Disruption

Faster installs, fewer issues, and reduced impact on your business hours. We work efficiently to keep your operations running.

Precision Built for Performance

Every installation starts with careful planning and custom fabrication. From mechanical drawings to finished systems, we ensure every component fits precisely and performs optimally.

Our expertise in structural and rooftop coordination means your project is handled from the curb up — gas lines, refrigeration, duct transitions, and full system commissioning.

18+ Years Experience
100% Commercial Focus
3 Factory Certifications

Our Trusted Suppliers & Partners

  • Daikin
  • Mitsubishi
  • LG
  • Honeywell
  • Carrier

Ready to Start Your Next Project?

From rooftop units to custom ductwork, DC Mechanical delivers commercial HVAC solutions with precision, experience, and minimal disruption to your business.

Call (519) 268-0899
Please let us know what's on your mind. Have a question for us? Ask away.