Skip to content 
- Your Local Experts for Unit Heater Repair Near You
Unit Heater Repair & Installation Services
If you’re searching for Unit heater repair near me, AQ Heating and Cooling is your trusted partner for fast, reliable, and professional Unit services across the Greater Toronto Area. We specialize in Unit heater installation, diagnostics, and repairs for commercial buildings and large-scale HVAC systems. Our certified technicians bring years of experience and the latest tools to restore heating efficiency and indoor comfort, no matter the season.
What Is a Unit Heater (RTU) System?
Unit heaters—commonly known as RTUs (Remote Temperature Units)—are self-contained HVAC systems designed to heat large indoor areas from a Central platform. Retail establishments extensively utilize these technologies. Warehouses, offices, and restaurants. By combining heating, ventilation, and sometimes cooling into a single unit, they offer robust climate control while conserving indoor space.
Signs You Need Unit Heater Repair
Does your unit need servicing?
If you’re experiencing any of these issues, it’s time to search for ‘unit heater repair near me’ and call AQ Heating and Cooling.
- Sharp increases in utility bills
- No airflow or weak airflow from vents
- Unusual noises or smells
- Inconsistent heating across zones
- Services
Comprehensive Unit Heater Services
We offer complete unit heater systems designed to meet the requirements of both industrial and commercial applications.
Unit Heater Repair
Unit Heater Repair
Unit Heater Installation
Unit Heater Installation
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.
Unit Heater Services Also Available
We also specialize in the service and installation of unit heaters—ideal for workshops, garages, and commercial properties that require direct, efficient heating.
Unit Heater Repair
Unit Heater Repair
Unit Heater Installation
Unit Heater Installation
Unit Heater Maintenance
Unit Heater Maintenance
- 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
Why Choose AQ Heating and Cooling?
Choosing AQ means you’re working with a licensed and insured team that prioritizes your business.
- Certified HVAC technicians with RTU and unit heater expertise
- Same-day service and emergency repair availability
- Honest quotes and no hidden fees
- Service for all central Unit and unit heater brands
- Backed by a warranty and satisfaction guarantee
- 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
Unit Heater Service Areas Across the GTA
Serving business and industrial clients around the Greater Toronto Area is something we are delighted to do, including:
- 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 Unit heaters typically last?
Units generally last 15–20 years with proper maintenance.
Q2 Do you offer service contracts for RTU systems?
No, we do not offer customized/monthly maintenance plans for units and commercial HVAC systems. The customer pays once the work is done.
Q3 Are emergency repairs available?
Absolutely. We provide 24/7 emergency Unit heater repairs across the GTA.
Q4 What brands do you service?
We repair and install all major RTU and unit heater brands, including Lennox, Carrier, Trane, York, and more.
Schedule Your Unit Heater Repair Today
Whether you’re facing a breakdown or planning a new installation, trust AQ Heating and Cooling for expert Unit heater repair near me and beyond. We help businesses stay warm, efficient, and code-compliant, on time and within budget.
Call now or book online to schedule your Unit heater repair or installation.
