Serving Washington, DC and Northern Virginia

Commercial HVAC

Commercial HVAC Repair and Service

United repairs, installs, and maintains commercial heating and cooling equipment in restaurants, offices, retail spaces, and other commercial properties.

Updated August 27, 2026

Representative commercial HVAC equipment in a mechanical room
Representative commercial HVAC equipment. The system and access conditions vary by property.

01

Which commercial HVAC equipment does United service?

United works on heating, cooling, airflow, and controls in commercial properties. Rooftop units, commercial kitchen ventilation, and cooling towers have their own service pages because the equipment and access questions differ.

  • Packaged rooftop units
  • Split heating and cooling systems
  • Exhaust and makeup-air equipment
  • Cooling towers
  • Thermostats, zoning, and controls

02

Is the problem in the equipment, controls, or airflow?

A comfort or temperature problem can begin at the main equipment, thermostat, building controls, fan, filter, ductwork, or outdoor-air path. The first job is to separate the symptom from the part that caused it.

03

What information should a property or facility manager send?

Share the property type, the area affected, when the problem started, operating hours that affect access, and anything the controls display. A model number, roof plan, equipment schedule, or photo can help when it is easy to obtain.

04

When does the job belong under repair, maintenance, or replacement?

A fault needs diagnosis. Maintenance addresses the condition of working equipment. Replacement becomes a separate decision when the diagnosis, equipment condition, access, or building needs make repair the weaker option.

05

Does United serve this commercial property in Washington, DC or Northern Virginia?

United serves commercial properties across Washington, DC and Northern Virginia. Include the property address, ZIP, equipment location, and access limits so the team can confirm the job and plan the visit.

Common questions

What customers ask.

Does United work on residential and commercial HVAC?

Yes. United works in houses, condos, rentals, and commercial buildings. This page covers the commercial equipment and property conditions that change the job.

Can United service rooftop, kitchen ventilation, or cooling-tower equipment?

Yes. United works on rooftop units, exhaust and makeup-air equipment, and cooling towers. Use the equipment page for the questions specific to that system.