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- Efficient Commercial Heating & Cooling from the Rooftop Down
Rooftop Heater Services
Keep your commercial space warm, energy-efficient, and compliant with expert rooftop heater services from AQ Heating and Cooling. Whether you’re replacing an old RTU heating system or installing a new rooftop unit, our certified HVAC specialists ensure safe, high-performance results with minimal disruption to your operations.
Commercial Rooftop Heater Solutions
We work with:
- Offices & Retail Stores
- Warehouses & Distribution Centers
- Schools & Institutions
- Restaurants & Hospitality Facilities
- Industrial Buildings & Manufacturing Units
Why Choose AQ Heating and Cooling?
The Right Step for Quality Flooring and Home Upgrades
Whether you’re retrofitting an aging rooftop heater or building a new HVAC system from scratch, we’re the partner businesses trust for reliable results.
- TSSA-certified commercial HVAC technicians
- Extensive experience with rooftop heater brands
- Same-day service available
- Transparent estimates with no surprise fees
- Services
When to Service or Replace Your Rooftop Heater
Are you unsure if your unit needs repair or replacement? Look for these signs:
Uneven heating or cold spots indoors
Uneven heating or cold spots indoors
Rising utility bills despite moderate usage
Rising utility bills despite moderate usage
Loud noises or vibrations from the RTU
Loud noises or vibrations from the RTU
The heating system fails to respond to the thermostat.
The heating system fails to respond to the thermostat.
What Is a Rooftop Heater?
A rooftop heater is a type of rooftop HVAC unit (RTU) that provides centralized heating for large commercial or industrial buildings. These units are designed for roof mounting and include all major components—heat exchanger, blower, gas valve, and controls—in one compact system. They’re ideal for businesses seeking space-saving, efficient, and scalable heating solutions.
Complete Rooftop Heater Services Across the GTA
We offer end-to-end rooftop heater services for all commercial and industrial HVAC needs. Our solutions are tailored to your building type, energy goals, and heating capacity requirements.
Rooftop Heater Installation
Rooftop Heater Installation
Rooftop Heater Repair
Rooftop Heater Repair
Rooftop Heater Maintenance
Rooftop Heater Maintenance
Rooftop Heater Safety
Rooftop Heater Safety
- benefits
Signs You Need RTU HVAC Service
Don’t wait for a full breakdown. Look for these warning signs
Inconsistent temperatures across zones
Sudden increase in energy bills
Unusual noises or vibrations
Benefits of Our Commercial RTU Services
Working with AQ Heating and Cooling means:
- TSSA-certified HVAC specialists
- Accurate load calculations and system sizing
- Service for all major RTU brands (Carrier, Lennox, York, Trane)
- Transparent pricing with no surprise fees
- Services
Our Complete Heating Services at a Glance
We provide end-to-end solutions for residential home heating, with a special focus on gas furnace systems. Our services include:
Gas Furnace Installation
Gas Furnace Installation
Gas Furnace Repair
Gas Furnace Repair
Gas Furnace Maintenance
Gas Furnace Maintenance
What Makes Us Different
At AQ Heating and Cooling, we go beyond HVAC—we’re your partners in comfort. With decades of experience, certified technicians, and a customer-first approach, we proudly serve homeowners and businesses across the GTA. Whether it’s an emergency repair or a complete energy-efficient installation, our mission is to deliver long-lasting, high-quality service you can trust.
Residential HVAC Expertise
Regular maintenance ensures reliable heating during Ontario’s harsh winters by preventing filter clogs and fan issues.
Commercial HVAC Services
Clanging, grinding, or burning smells may signal damaged components or airflow issues.
Commercial HVAC Services
Frequent on/off cycling wastes energy and shortens your system’s lifespan.
Customer Testimonials – Trusted Heating Experts
AQ Heating and Cooling installed our AC system in record time and left the space spotless. Very impressed!
Michelle A
AQ Heating and Cooling installed our AC system in record time and left the space spotless. Very impressed!
Michelle A
AQ Heating and Cooling installed our AC system in record time and left the space spotless. Very impressed!
Michelle A
- areas
Service Areas – Greater Toronto Region
Heating and Cooling proudly serves:
- Mississauga
- Brampton
- Georgetown
- Caledon
Our fast response times and expert service have made us a trusted choice for commercial rooftop heater services across the GTA.
- Faq's
FAQs – RTU HVAC Service HVAC Service Near Me
Q1 How long do rooftop heaters last?
Most rooftop units last 12–20 years with proper maintenance.
Q2 Are rooftop heaters energy efficient?
Yes, especially newer high-efficiency models with smart zoning and modulation features.
Q3 Do you service both gas and electric RTUs?
Absolutely. We work with both types, as well as hybrid rooftop HVAC units.
Book Your Rooftop Heater Service Today
Whether you need a quick rooftop heater repair or a complete system replacement, AQ Heating and Cooling delivers expert service with dependable results. Contact us today to schedule your rooftop heater consultation or same-day repair.
Call now or book online — experience professional rooftop heating solutions with AQ Heating and Cooling.
