HVAC & Mechanical Services
Your building's mechanical systems are the heart of your operations, and we keep them beating strong. FirstCall delivers comprehensive HVAC and mechanical solutions—from installation and maintenance to full system upgrades—ensuring your facility runs efficiently, comfortably, and reliably, year-round.
HVAC Installation
Mechanical Systems
Ventilation
Air Conditioning
Chillers & Boilers
Preventive Maintenance
Our Recent Projects
Hamilton Downtown Rough-ins
Completed overhead plumbing and mechanical rough-in, including domestic water lines, fire protection piping, and integrated HVAC distribution. All systems were suspended, pressure-tested, and installed to commercial code standards, establishing the core infrastructure for tenant build-out and long-term reliability.
Industrial Makeup Air Unit Structural Retrofit – Food Processing Facility
Removed existing industrial makeup air unit to replace the curb adapter and reinforce the roof structure with engineered support. Reinstalled and fully commissioned the system to ensure proper load distribution, weather sealing, and reliable operation within a high-demand food processing environment.
Niagara Warehouse
An advanced 85,000 sq ft warehouse intelligence system that integrates over fifty autonomous robotics with AI-driven analytics to provide real-time, highly accurate operational visibility.
St. Catharines Industrial Cold Storage Facility
From equipment placement and piping coordination to system commissioning, our team worked alongside engineers to ensure structural integrity, performance optimization, and long-term asset reliability all controlled with building automation.
Ottawa Sports Complex
Executed a comprehensive Variable Speed Drive (VSD) electrical infrastructure modernization and energy optimization program across multiple Ottawa municipal sports complex facilities, enhancing system reliability, compliance, and long-term operational efficiency.
Memorial Centre Arena
Complete steam boiler, electrical, and plumbing system upgrades across the whole arena to supply heat to the building using BAS.
Burlington Retail Head Office
Provided dedicated, reliable 8 tons of cooling for the server room, ensuring stable temperatures and protecting critical IT infrastructure from overheating and downtime.
City of Tottenham Strip Mall – Mechanical Infrastructure Renewal
Completed a full HVAC infrastructure renewal, including replacement of rooftop units and optimization of the mechanical ducting system to improve airflow efficiency, system reliability, and long-term operational performance across the plaza.
