One box on the roof heats, cools and ventilates your building. When it quits, everyone feels it. We answer 24/7.
- Open 24/7
- Talk directly to Quinn
- Homes & businesses
- Calgary & area
Signs it needs service
- No heat or can't hold temperature
- Warm air in summer
- Short cycling
- Squealing belts or grinding fans
- Water through the ceiling under the unit
- Ice on the lines or coil
- Higher energy bills
- Hot and cold zones
Heating side
- Gas-fired heating sections
- Igniters, flame sensors, inducers, gas valves, limit switches
- Winter check: snow and ice blocking air openings
Cooling side
- Compressors, fans, contactors, capacitors
- Refrigerant circuits and coils
- Dirty condenser coils: a top cause on hot days
- Leaks found and fixed, not just topped up
Fresh air & controls
- Economizer dampers and actuators
- Stuck damper: freezing air in winter, wasted energy in summer
- Sensors, thermostats and building controls
Replacement
- Honest repair vs. replace comparison
- Crane lift, curb and connections planned
- Scheduled around your business hours
Maintenance visit
- Filters, belts and pulleys
- Clean condenser and evaporator coils
- Inspect heating section and venting
- Check refrigerant pressures
- Test economizer and controls
- Clear condensate drains to stop roof leaks
- Check electrical connections
Areas we serve
- NW Calgary
- NE Calgary
- SW Calgary
- SE Calgary
- Airdrie
- Cochrane
- Chestermere
- Okotoks
- Red Deer
Not sure if you're covered? Call 403-970-6988
Frequently Asked Questions
Do you answer rooftop unit calls after hours?
Yes. GBL HVAC LTD is open 24 hours, 7 days a week. Call 403-970-6988 any time your unit stops heating or cooling.
Why is water leaking through my ceiling under the rooftop unit?
Often a blocked condensate drain, damaged curb seal or failed roof flashing around the unit. A blocked drain is something we check and clear on every maintenance visit. If the leak is in the roof itself, you may also need a roofer.
How often should a rooftop unit be maintained?
At least twice a year is common: once before heating season and once before cooling season. Filters may need changing more often, depending on the building and the environment.
Should I repair or replace my rooftop unit?
It depends on the unit's age and condition and what the repair involves. We'll give you both options with the trade-offs so you can decide.
Can you service the rooftop unit over a restaurant kitchen?
Yes. We also work on kitchen hood fans and make-up air units, which often sit on the same roof and affect how the building's heating and cooling perform.