Commercial HVAC Maintenance That Stops Rooftop Surprises
Planned service for RTUs, commercial split systems, VRF and packaged heat pumps — scheduled around your business hours.
(336) 318-5876
Put Your Rooftop Units on a Service Schedule
One walkthrough, a per-unit condition report, and a maintenance cadence that fits your building.
(336) 318-5876 • Mechanical contractor #36703 • Written report on every unit
Quick Answer:
Commercial HVAC maintenance from Dependable HVAC covers coil cleaning, filters, belts, electrical, refrigerant readings, and economizer operation on every rooftop unit or split system in your building, twice a year at minimum. Call (336) 318-5876 to get your building on the schedule.
Why Commercial Equipment Fails Earlier Than It Should
A residential condenser sits in a shaded side yard. A commercial rooftop unit bakes in full sun, pulls in parking-lot dust and kitchen grease, and runs far more hours per year. That's why an RTU that should last 15 years often dies at 8 — not from a design flaw, but from a coil nobody has washed since it was set on the curb.
Our mechanical technicians work the equipment on a cadence, log readings unit by unit, and flag the parts that are drifting before they strand you. The point isn't a checklist for its own sake; it's catching the $200 capacitor before it takes the $3,500 compressor with it.
What's on Every Maintenance Visit
- Belt tension, sheave alignment, and bearing inspection on belt-drive rooftop blowers
- Condenser and evaporator coil cleaning — the #1 cause of high-head-pressure RTU failures
- Refrigerant superheat/subcooling readings logged unit by unit
- Contactor, capacitor, and control board inspection before summer load hits
- Economizer damper and actuator operation (free cooling that's usually stuck shut)
- Filter change-out on the schedule your building's dust load actually requires
- Gas heat section, ignition, and flame sensor check on gas/electric packaged units
- Condensate pan, trap, and drain line clearing to prevent ceiling damage
How Often Should Your Building Be Serviced?
Quarterly
Restaurants, salons, gyms, shops with heavy grease or dust
Filters and coils load up fast; quarterly visits keep static pressure and amp draw in range.
Semi-Annual
Offices, medical suites, retail, churches
One spring cooling visit and one fall heating visit covers both seasons of load.
Monthly Filter Service
Multi-RTU buildings and daycares
Filters swapped monthly, full mechanical inspection twice a year.
Commercial Maintenance Questions
What does commercial HVAC preventive maintenance include?
How often should commercial rooftop units be serviced?
Does maintenance actually lower commercial utility bills?
Do you maintain equipment you didn't install?
Start With a Building Walkthrough
We'll inventory every unit, report its condition, and quote a maintenance schedule that matches how hard your building works its equipment.
Call (336) 318-5876