Rooftop Unit

Water leaks from a commercial rooftop unit are commonly connected to clogged condensate drains, damaged or overflowing drain pans, poor drainage, coil icing, or airflow restrictions. Moisture may remain around the cabinet, collect on the roof, or eventually affect areas inside the building. Because several conditions can produce the same visible leak, the drainage system, coils, airflow, and operating conditions should all be checked.

Our experienced commercial HVAC team has handled a wide range of RTU drainage and moisture problems over the years. We can identify where the water is coming from and address the condition causing it, not just the visible result.

There is no single maintenance interval that fits every commercial rooftop unit. Service frequency depends on operating hours, building use, equipment age, seasonal demand, filter loading, rooftop conditions, and the overall condition of the RTU. Equipment that runs for long hours or serves busy commercial spaces may need more frequent inspection than units with lighter operating schedules. Regular maintenance is also an opportunity to catch belt wear, coil buildup, electrical deterioration, drainage problems, and control issues before they affect operation.

HVAC.Services has extensive experience maintaining commercial rooftop equipment in demanding operating environments. Our technicians can evaluate the actual condition and workload of the unit and recommend a service schedule based on how the equipment is being used.

An RTU can continue running while producing little or insufficient cooling for several reasons. Dirty coils, restricted airflow, refrigerant problems, compressor issues, fan performance, sensors, controls, or electrical faults can all reduce cooling capacity. The unit may also cool normally under a light load but struggle during hotter periods or when occupancy increases. Proper diagnosis should include temperature readings, airflow checks, electrical testing, and evaluation of the refrigeration side of the equipment.

With years of hands-on commercial HVAC experience, our technicians are familiar with the combinations of faults that can reduce RTU cooling capacity. We test the equipment under operating conditions and identify where performance is being lost before recommending the appropriate repair.

The decision to repair or replace an older RTU depends on several factors, including equipment age, repair history, current condition, availability of replacement parts, operating efficiency, and the cost of the required repair. A well-maintained unit with one isolated failure may still be worth repairing, while repeated compressor, electrical, control, or major mechanical problems can make continued repairs less practical. Building requirements and future operating costs should also be considered before making the decision.

Our team has worked with commercial rooftop equipment across many different conditions and stages of service life. HVAC.Services can assess the RTU as a whole, explain the practical repair and replacement options, and help determine which approach makes more sense for the property.