Commercial HVAC
Rooftop Unit Repair Calgary
Focused RTU service for restaurants, retail spaces, and commercial buildings that need stable heating, cooling, and airflow.
No Heat or No Cooling
We diagnose failed heating stages, bad cooling calls, low airflow, frozen coils, and failed controls.
Short Cycling and Controls Faults
Fast checks for pressure problems, control-board issues, bad sensors, and nuisance trips that keep the unit unstable.
Airflow and Ventilation Complaints
Supply fan, economizer, belt, damper, and filtration issues that leave rooms uncomfortable or uneven.
RTU Acting Up?
Restore Comfort Before It Becomes a Complaint Chain.
RTU problems spread quickly through dining rooms, kitchens, offices, and tenant spaces. We focus on practical diagnosis, clear communication, and stable operation.
RTU Coverage
Focused Repair for the Equipment Commercial Buildings Depend On
Rooftop units often carry the whole space: heat, cooling, air movement, and fresh-air control. When one starts drifting, the result is usually comfort complaints, staff frustration, and pressure to fix it fast.
YYC Mechanical works through the mechanical cause first, then the control side, so you get a stable answer instead of repeat visits that do not solve the actual problem.
Common Call Reasons
Problems We Diagnose on Rooftop Units Every Week
RTU runs but the building never reaches setpoint
Heat works intermittently or locks out
Cooling starts late or stops too early
Loud fan noise, vibration, or belt issues
High head pressure, frozen coils, or airflow restriction
Space complaints from one zone or one side of the building
Usually Worth Repairing
- Failed ignitors, contactors, motors, belts, sensors, and controls
- Airflow issues caused by filters, dampers, fan assemblies, or maintenance neglect
- Economizer and ventilation faults that are isolated to a few components
Replacement Planning Starts Here
- Repeated compressor or heat-exchanger-related failures on aging equipment
- Units with poor parts availability and rising annual repair spend
- RTUs that are undersized, oversized, or no longer matched to the space load
RTU FAQs
Common Questions About Rooftop Unit Repair
Do you repair both heating and cooling problems on rooftop units?+
Yes. We troubleshoot both sides of the unit, including gas heat, cooling circuits, airflow, economizers, and controls.
Can you service rooftop units for restaurants and retail buildings?+
Yes. We regularly support restaurants, bars, shops, and other commercial spaces that rely on RTUs for comfort and ventilation.
What if our rooftop unit keeps short cycling?+
Short cycling usually points to an airflow, control, refrigerant, or safety issue. We diagnose the cause and correct it before it turns into a larger failure.
Do you offer maintenance for rooftop units?+
Yes. Preventive maintenance helps catch belt wear, dirty coils, bad capacitors, burner issues, and sensor drift before they trigger downtime.
Need RTU Help?
Get the Unit Stable Before Complaints Spread.
If your rooftop unit is dragging down comfort or ventilation, we can help you diagnose it and get back to steady operation.