Rooftop HVAC for Commercial Buildings

Arctic HVAC & Mechanical, LLC installs and services commercial package units for businesses and facilities in Richmond, Virginia.

Commercial package units sit on rooftops or concrete pads and deliver heating and cooling to offices, retail spaces, warehouses, and other commercial buildings in Richmond. These self-contained systems combine the compressor, evaporator, condenser, and air handler in one cabinet, which simplifies installation and keeps mechanical equipment out of interior spaces. Arctic HVAC & Mechanical, LLC works with property managers, business owners, and facility operators in Richmond who need dependable climate control for occupied buildings.

Package unit service includes checking refrigerant levels, inspecting gas heat exchangers, cleaning condenser coils, testing blower motors, and verifying that economizer dampers operate correctly. Maintenance keeps the unit running efficiently and reduces the chance of breakdowns during peak cooling or heating seasons. Replacement work involves removing the old unit, setting a new one on the roof curb, connecting ductwork and electrical service, and commissioning the system to meet building load requirements.

If your rooftop unit is not keeping up with demand or needs replacement in Richmond, contact Arctic HVAC & Mechanical, LLC to schedule a consultation.

What Installation and Maintenance Look Like

A technician visits your building in Richmond to assess the existing rooftop unit, measure the roof curb, and calculate the heating and cooling load based on square footage, occupancy, and insulation. They order a unit sized to match your building's needs, then coordinate crane or rigging equipment to lift the new package unit onto the roof and secure it to the curb.

After installation, you notice that indoor temperatures stay consistent across all zones, airflow improves through ceiling vents, and the system cycles on and off less frequently. Occupants stop complaining about hot or cold spots, and the building maintains comfort without constant thermostat adjustments.

Preventive maintenance agreements are available for businesses that want scheduled inspections, filter changes, and seasonal tune-ups to keep package units running without unexpected failures. These agreements help extend equipment life and reduce downtime during business hours. Not all rooftop units can be repaired in place, and some older systems with failed compressors or cracked heat exchangers require full replacement rather than component-level repairs.

Things building managers often need to know

Facility managers and business owners usually want to know how often package units need maintenance, what causes premature failures, and how long replacement takes.

How often should a commercial package unit be serviced?
Most units need maintenance twice per year, once before cooling season and once before heating season. The technician changes filters, cleans coils, checks refrigerant charge, inspects electrical connections, and tests safety controls during each visit.
What causes a rooftop unit to stop cooling suddenly?
Common causes include refrigerant leaks, failed compressor contactors, tripped breakers, clogged condenser coils, or broken blower belts. A technician uses electrical meters and pressure gauges to locate the failure point and restore operation.
How long does it take to replace a rooftop package unit?
Replacement usually takes one to two days in Richmond, depending on crane access, curb modifications, and electrical upgrades. The old unit is lifted off the roof, the new unit is set and secured, ductwork is reconnected, and the system is tested before the building is turned back over to normal use.
Why is my package unit running constantly but not cooling the building?
This usually means the unit is undersized for the building load, refrigerant charge is low, or airflow is restricted by dirty filters or blocked return ducts. A technician checks system capacity, measures airflow at the supply registers, and inspects the evaporator coil for blockages.
When should I replace a package unit instead of repairing it?
Replacement makes sense when the compressor or heat exchanger fails on a unit older than 15 years, when efficiency ratings no longer meet current standards, or when repair costs approach half the price of a new system. A technician in Richmond can provide a cost comparison during the service visit.

Arctic HVAC & Mechanical, LLC services and installs commercial package units for businesses in Richmond that need year-round climate control without interruptions. Get in touch to request a maintenance visit or to discuss replacing an aging rooftop unit.