Rooftop HVAC Systems for Industrial & Commercial Spaces

Expert Design, Installation, Service & Replacement of Rooftop Systems Across the GTA

Nutech Air System provides expert installation and maintenance of rooftop HVAC units (RTUs) across the GTA and surrounding regions. These compact, all-in-one systems are ideal for buildings with limited interior space or specific ventilation zoning needs.

What is a Rooftop Unit (RTU)?

A Rooftop Unit (RTU) is a self-contained HVAC system installed on the roof of a commercial or industrial building. It provides heating, cooling, and ventilation in a single package, making it a practical choice for facilities that want centralized control with minimal space disruption. RTUs are connected to the building’s ductwork and offer easy access for maintenance while keeping mechanical equipment out of sight.

Benefits of Upgrading your Rooftop Unit (RTU)

Improved Indoor Air Quality

Advanced filtration and ventilation features help maintain cleaner, healthier air.

Lower Operating Costs

Newer models offer improved energy efficiency, reducing monthly utility bills.

Smart Controls

Integration with building automation systems for greater flexibility and savings.

Reduced Repair Needs

New units reduce downtime and unexpected service costs.

Rebate Incentives

provincial and federal energy-efficiency rebate programs

Why Rooftop HVAC Units

Space Optimization: Frees up valuable indoor square footage for business operations or equipment.
All-in-One Climate Control: Combines heating, cooling, and ventilation into a compact packaged system.
Zone Flexibility: RTUs can be customized to meet the needs of specific sections or departments.
Maintenance Access: Units are isolated from high-traffic areas, making service and repairs easier without disruption.
Energy Efficiency: Modern RTUs come with high-efficiency fans, economizers, and programmable controls.

Our Rooftop HVAC Services

Design & Installation

Custom rooftop HVAC setups for any commercial space.
  • Tailored system sizing & layout
  • Efficient airflow & zoning plans
  • Code-compliant installation work

Maintenance & Tune-Ups

Extend system life with seasonal care and checkups.
  • Full system performance checks
  • Filter and coil cleaning service
  • Safety controls and settings test

Repairs & 24/7 Emergency Service

Fast, expert service to restore heat or cooling anytime.
  • Emergency response team ready
  • Troubleshooting all major brands
  • Fully stocked service vehicles

Rebate & Finance

Save on upgrades with flexible financing and rebates.
  • Access to energy rebates & grants
  • Low monthly payment solutions
  • Upgrade without large upfront cost

System Upgrades & Retrofits

Modernize outdated rooftop HVAC systems for better performance.
  • Upgrade to energy-efficient units
  • Integrate with smart controls
  • Reduce operating and repair costs

Inspection & Compliance Checks

Ensure HVAC systems meet all safety and building regulations.
  • Full code compliance reports
  • Health & safety inspection logs
  • Support for city or insurance audits

Not sure if it's time for an upgrade?

Outdated rooftop HVAC systems can drive up costs and reduce comfort. Not sure if it's time for an upgrade?

Ask yourself:

  •   Are repairs becoming more frequent and costly?
  •   Is your system 15+ years old?
  •   Are energy bills steadily climbing?
  •   Do certain areas heat or cool unevenly?
  •   Is your unit loud or producing odors?

  • Let Nutech inspect your system and recommend a smart, energy-efficient replacement.

Upgrade to Rooftop HVAC with Confidence

We’re here to help 24/7. Contact Nutech Air System certified experts to design or upgrade your Rooftop HVAC solution.

Serving Aurora, Ajax, Durham, Markham, Newmarket, Oshawa, Richmond Hill, Whitby, Etobicoke, Milton, Mississauga, North York, Oakville, Toronto, Vaughan, Scarborough, Barrie, Bradford, Georgetown, Innisfil, King City, Ayr, Brantford, Burlington, Cambridge, Guelph, Halton Hills, Hamilton, Kitchener, London, Paris, St. Catharines, Waterloo and more.

Our wide selection of top brands

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Trane Technologies, a global climate innovator and HVAC leader, drives sustainable energy-efficient building solutions through brands Trane & Thermo King.
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Goodman Manufacturing (Daikin subsidiary) delivers reliable, affordable U.S.-built HVAC systems with industry-leading warranties and energy-efficient designs.
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Carrier Global, founded in 1915, is a global leader in intelligent climate and energy solutions, offering innovative HVAC, refrigeration, and fire & security systems.
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Rinnai Canada, a subsidiary of Rinnai Japan, offers energy-efficient tankless water heaters and heating solutions for residential and commercial applications.
Lennox, founded in 1895, leads in energy-efficient HVAC solutions, offering innovative heating, cooling, and indoor air quality systems.
Rheem, founded in 1925, is North America’s #1 water‑heating brand and global HVAC provider—engineered for energy‑efficient comfort and sustainability.
KeepRite® (ICP/Carrier) offers over 50 years in heating & cooling, budget-friendly yet reliable systems backed by advanced engineering and No Hassle Replacement warranties.
Navien Canada, Inc. licenses North America’s #1 condensing tankless water heaters & boilers, offering energy‑efficient home and HVAC systems backed by Canadian support.
York®, founded in 1874 and now part of Johnson Controls, delivers innovative commercial & residential HVAC systems trusted globally for quality and sustainability.
Amana® HVAC: U.S.-designed, engineered & assembled in a $400M Daikin Texas facility. Energy‑efficient systems, premium quality, industry-leading lifetime warranties.
A. O. Smith (est. 1874) is a global leader in energy‑efficient water heating, boilers, water treatment & air purification, operating in 60+ countries.
Giant Inc. — a family-owned Canadian hot water heater maker for over 70 years, now part of A. O. Smith, delivering trusted, coast-to-coast reliability.
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Bradford White, an employee-owned, manufactures high-quality water heating, space heating, and storage solutions for professionals.
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Canature WaterGroup, with over 50 years of experience, manufactures innovative, high-quality water treatment systems for residential and commercial applications across North America.