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CIMCO delivers reliable and cost-effective HVAC solutions tailored to the specific needs of any building, whether residential, commercial, or industrial. Our team of highly skilled technicians and top industry experts are committed to maintaining the efficiency and dependability of your HVAC systems, allowing you to focus on managing your facility.
With over 110 years of experience, CIMCO has become a leading commercial HVAC contractor in Hamilton, known for its exceptional technical expertise in design, engineering, manufacturing, automation, installation, service, and components. Our team provides unmatched service nationwide, available 24/7 to ensure our customers receive timely and effective support.

CIMCO’s Commercial HVAC Services Hamilton
As top commercial HVAC contractors in Hamilton, CIMCO delivers a comprehensive selection of high-quality systems designed to enhance HVAC installations of any scale. Our offerings include:
Heating Systems
we provide heating systems such as rooftop units, make-up air units, furnaces, boilers, heat pumps, fan coils, unit heaters, and ductless heat pumps.
Cooling Systems
cooling systems including cooling towers, fluid coolers, air-conditioning units, ductless split units, central units, and other cooling solutions for maintaining comfortable temperatures in warmer seasons.
Ventilation Systems
installation and maintenance of ventilation systems to ensure proper air circulation and indoor air quality.
Thermostats and Controls
programmable thermostats, smart thermostats, and other control systems to regulate temperature settings efficiently.
Air Quality Products
we offer air purifiers, filters, humidifiers, and dehumidifiers to improve indoor air quality and create a healthier indoor environment.
Energy-Efficient Solutions
energy-efficient HVAC systems and upgrades to help reduce utility costs and environmental impact.

Providing reliable HVAC services to the commercial sector in Hamilton
At CIMCO, our team is our most valuable asset. Our Hamilton-based specialists, technicians, and commercial HVAC contractors bring unmatched industry experience, which they utilize to optimize HVAC systems at every phase.
Design & Installation:
We offer expert advice on system design, upgrades, and optimization to meet the specific needs of your property and boost efficiency. With over a century of experience, we have the technical expertise to help you choose the best solution. Whether your project involves chillers, boilers, turnkey solutions, or comprehensive building services, we are here to design the perfect system for your requirements.
Repairs & 24/7 Support:
Choosing CIMCO as your commercial HVAC contractor means you can rely on our 24/7 emergency service, guaranteed response times, and a team of over 100 technicians across Ontario to handle repairs quickly and efficiently. Located just minutes from Hamilton, our team is always nearby to assist. Our services include HVAC, dehumidification, refrigeration, and more—all delivered with prompt, reliable service. Our customers can trust us for swift responses to any HVAC system issues, minimizing downtime and inconvenience for tenants.
Indoor Climate Monitoring:
We install advanced monitoring systems to track temperature, humidity, and air quality, providing valuable data for better management and optimization of HVAC systems. This ensures you can maximize the performance and efficiency of your system.
Maintenance Planning & Service Agreements:
We provide regular maintenance services to keep HVAC systems running smoothly, prevent breakdowns, and extend the lifespan of your equipment. Our extensive knowledge of commercial HVAC allows us to create a preventative maintenance plan that maximizes reliability and efficiency while controlling costs.

Helping You Keep Your Cool for Over a Century
CIMCO was founded on the core values of reliable, cost-effective solutions and unbeatable customer service back in 1913. It’s these principles that have driven our success and made us the first choice of world-class organizations across North America, including the NHL. Today, we continue to develop industry-leading technology and deliver outstanding HVAC contracting services to the commercial sector to provide the most efficient and reliable thermal systems available.
With a key focus on decarbonization and net zero, we are committed to preserving our environment and supporting clients in achieving their climate goals. As part of Toromont Industries Ltd., CIMCO is also the only industrial refrigeration company to be publicly traded on the Toronto Stock Exchange. We have a broad geographic reach across North America with a network of 29 offices, account managers, and technicians across Canada and the United States. With a 110+ year history, the company has more than 7,000 customers, 1,500 active service contracts, and 1,200 employees.
Talk to us, your local Commercial HVAC Contractor today. For more information, you can also visit our services page.

R-410 PHASE OUT: ARE YOU READY?
The HVAC industry is undergoing a major transformation with the phaseout of R410A refrigerant, a move that will significantly impact manufacturers, service providers, and consumers. Before you finalize your phase out plan, use the chart in the button below to help gauge some important system factors and determine which strategy is the best fit for your facility.
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