Commercial HVAC/R • Ottawa & surrounding area
Commercial HVAC service that keeps your building running
From rooftop units and make-up air to hydronic heating and ventilation balancing, Cosenzo Mechanical delivers reliable installs, maintenance, and repairs—backed by responsive support and 24/7 emergency service.
What we do
Commercial HVAC solutions for offices, retail, and light industrial
We service and install a wide range of commercial HVAC/R equipment with a focus on uptime, comfort, and energy efficiency.
Repairs & troubleshooting
Fast diagnosis for no-heat/no-cool, airflow issues, controls faults, and comfort complaints—plus clear options before work begins.
Preventive maintenance
Seasonal inspections, filter programs, belt and bearing checks, combustion analysis (as required), and performance verification to reduce downtime.
Installations & replacements
Like-for-like replacements or custom upgrades for RTUs, split systems, unit heaters, and ventilation equipment—planned around your operating hours.
Ventilation & air quality
Make-up air, exhaust, ductwork modifications, and balancing support to improve comfort, code alignment, and indoor air quality.
Common equipment we service
Commercial equipment support
Whether you manage a single location or multiple sites, we help you maintain comfort and control operating costs.
Rooftop units (RTUs)
Cooling, heating, economizers, and airflow issues—service, maintenance, and replacement planning.
Make-up air & ventilation
Exhaust/make-up air systems, ductwork changes, and airflow improvements for healthier indoor environments.
Hydronic & gas heating
Unit heaters, boilers (support), pumps, and controls troubleshooting to keep heat reliable all winter.