Commercial HVAC
Commercial HVAC Repair & Maintenance Calgary
Heating, air conditioning, rooftop units, make-up air and ventilation for Calgary offices, retail spaces, restaurants and managed properties. Call for repairs, planned maintenance or replacement advice.
Heating, Cooling and Ventilation for Calgary Businesses
We troubleshoot the equipment and conditions affecting your building—not just the first visible symptom. That includes rooftop units, make-up air systems, heating and cooling equipment, ventilation, airflow, thermostats, and controls.
Tell us which areas are uncomfortable, whether the problem is constant or intermittent, and the equipment model if available. We can coordinate access with your property manager or tenant, review the repair options and build a maintenance schedule around how the building is used.
Installation
Expert installation of new HVAC systems tailored to your commercial space.
Maintenance
Comprehensive maintenance plans to keep your system at peak performance.
Repair
24/7 emergency repairs to minimize downtime and disruptions.
Upgrades
Energy-efficient system upgrades for long-term savings and comfort.
How It Works
From your first call to job completion, we make the process simple, transparent, and hassle-free.
Call or Request a Quote
Reach us by phone or through our contact form. We'll discuss your system, symptoms, and schedule a visit.
On-Site Assessment
A technician inspects the equipment, operating conditions, airflow, controls, and the symptoms affecting your space.
Upfront Quote
We provide a clear, itemized quote before any work begins — no surprises, no hidden fees.
Work Completed
We complete the repair, installation, or maintenance efficiently and clean up before we leave.
Built for Calgary Winters
Calgary's temperature swings put commercial heating and cooling equipment under real strain. We help businesses diagnose failures, restore operation, and plan maintenance before the next extreme weather event.
Systems We Service
We service common commercial heating, cooling, ventilation, and control equipment, with focused pages for rooftop and make-up air systems.
Related HVAC Pages
Find the Right Commercial HVAC Service
Start with heating, rooftop equipment, kitchen make-up air or a maintenance plan. Each page explains the systems and symptoms we can help with.
Common Problems We Fix
Recognizing an issue early can reduce disruption and help avoid secondary damage. Here are common commercial HVAC problems we troubleshoot.
No Heat or No Cooling
Whether your furnace won't fire or your AC isn't blowing cold, we diagnose and fix the root cause fast.
Poor Airflow & Ventilation
Weak airflow, hot/cold spots, or stale air are often signs of duct issues, dirty coils, or a failing fan motor.
Electrical & Controls Failures
Tripped breakers, faulty contactors, failed control boards, and thermostat issues are all in our wheelhouse.
Short-Cycling RTUs
Rooftop units that cycle on and off rapidly waste energy and wear out components quickly — we'll find out why.
Refrigerant Leaks
Low refrigerant leads to poor cooling performance, frozen coils, and compressor damage. We locate leaks and recharge properly.
Compressor & Motor Issues
Failed compressors, belt-driven fans, and blower motors are common in aging commercial systems — we repair or replace them.
Before You Book Commercial HVAC Service
Have the site address, equipment type, model number if accessible, symptoms and access contact ready. Let us know about rooftop access, affected tenants and any shutdown that needs to fit around business hours. For an active heating or cooling failure, call so we can discuss urgency.
Useful HVAC Guides
- Commercial AC not cooling: observations to share with your technician
- Rooftop unit short cycling: common causes
- Prepare commercial heating equipment for Calgary winter
- Commercial HVAC maintenance checklist
Managing more than one site? See our HVAC support for property managers. For home heating and cooling, visit residential HVAC services.
Preventive Maintenance
Maintenance Plans for Your Building and Equipment
Proactive maintenance helps identify wear, airflow problems, control faults, and seasonal issues before they become urgent. We shape the visit schedule around your equipment, usage, and operating hours.
Industries We Serve
From busy restaurant kitchens to temperature-sensitive healthcare environments, we understand the unique HVAC demands of every industry.
Restaurants & Bars
Kitchen ventilation, exhaust systems, and dining area climate control for guest comfort.
Retail Stores
Consistent temperatures and air quality that keep customers comfortable and shopping longer.
Office Buildings
Zoned HVAC solutions for multi-tenant buildings with varying heating and cooling needs.
Warehouses
High-capacity heating and ventilation systems designed for large open spaces.
Healthcare Facilities
Precision climate control and air filtration to meet strict health and safety standards.
Hotels & Hospitality
Reliable, quiet HVAC systems that ensure guest satisfaction around the clock.
Brands We Service
We work with common commercial HVAC brands and equipment found across Calgary businesses.
Our Work
A look at some of the commercial HVAC work we've completed across Calgary.
Why Choose YYC Mechanical
Calgary businesses count on us because we deliver dependable results, honest communication, and service that goes above and beyond.
Fast Response Times
We know downtime costs you money. Our team arrives quickly to diagnose and resolve issues so your business stays running.
Commercial Equipment Focus
Our service is built around the rooftop, heating, cooling, airflow, and control problems commercial sites encounter.
Transparent Pricing
No hidden fees or surprise charges. We provide clear, upfront quotes before any work begins.
24/7 Emergency Service
HVAC emergencies don't wait for business hours. Call us any time, day or night, and we'll be there.
Frequently Asked Questions
Common questions about commercial HVAC service in Calgary.
How often should commercial HVAC systems be serviced?
We recommend servicing commercial HVAC systems at least twice a year — once before the cooling season (spring) and once before the heating season (fall). High-use environments like restaurants may benefit from quarterly maintenance to prevent unexpected breakdowns.
What is a make-up air unit and do I need one?
A make-up air unit (MAU) replaces air that is exhausted from your building — especially important in restaurant kitchens with commercial hood fans. Without proper make-up air, you can experience negative pressure, poor combustion, backdrafting, and uncomfortable drafts. System requirements depend on the building and applicable codes.
My rooftop unit is short-cycling. What does that mean?
Short-cycling means your RTU is turning on and off too frequently without completing a full heating or cooling cycle. Common causes include a dirty air filter, refrigerant issues, a faulty thermostat, or an oversized system. Left unaddressed, short-cycling accelerates wear and significantly shortens equipment life.
Can you service our HVAC system after hours or on weekends?
Yes. We offer 24/7 emergency service and can schedule planned maintenance outside of your business hours to minimize disruption. Just let us know your preferred time when you call.
What brands of commercial HVAC equipment do you work on?
We work with common commercial HVAC brands including Lennox, Carrier, Trane, York, Daikin, Goodman, Rheem, Bryant, and American Standard. Call with the model and symptoms so we can confirm the right service path.
Do you offer maintenance contracts for multiple locations?
Absolutely. We work with multi-location businesses and property management companies to create customized maintenance agreements that cover all your sites under a single contract with consistent scheduling and reporting.
Experience the YYC Mechanical Difference
Trust us to be your partner in optimizing your commercial space for comfort, efficiency, and success.