Commercial HVAC Maintenance, Repair & Installation Services

When the air conditioning fails in a commercial building, tenants, customers, and equipment are affected quickly. Commercial Tech, Inc. provides fast, dependable air conditioning repair for commercial buildings throughout Northern Virginia, Maryland, and Washington, D.C. When repair is no longer practical, we also handle replacement and installation.

Signs Your AC Needs Repair

• The system runs but the building does not cool
• Warm air from vents, or some zones cooler than others
• Short cycling, or units that will not start
• Ice on refrigerant lines or the indoor coil
• Water leaks from air handlers or rooftop units
• Unusual noises such as grinding, buzzing, or banging
• A sudden increase in energy bills

Common Repairs We Perform

Our technicians carry common parts and diagnose the root cause before replacing components. Typical repairs include:

• Compressor and condenser fan motor replacement
• Capacitors, contactors, and electrical repairs
• Refrigerant leak detection, repair, and recharging
• Evaporator and condenser coil cleaning and repair
• Blower motors, belts, and economizer repairs
• Thermostat, sensor, and control board replacement
• Clogged condensate drains and pans

Refrigerant repairs are performed by EPA Section 608 certified technicians. We repair Carrier, Trane, Daikin, and York equipment and other major brands.

Repair or Replace?

If your unit is more than 15 years old, uses R-22 refrigerant, or needs a major component such as a compressor, replacement may cost less over time than repeated repairs. We give you the facts, including repair cost, expected remaining life, and replacement options, so you can make an informed decision. If replacement makes sense, we manage the full installation.

Why Building Owners Choose Commercial Tech

Commercial Tech, Inc. is a commercial mechanical contractor headquartered in Manassas, Virginia, and we focus on commercial and institutional buildings. Our air conditioning repair work is performed by trained technicians who hold EPA Section 608 certification, and we are fully licensed and insured. We service equipment from Carrier, Trane, Daikin, York, and other major manufacturers.

We explain what we find in plain language, give you options with clear pricing, and stand behind our work. Whether you need a single repair or a long-term service partner, we serve commercial customers across Northern Virginia, Maryland, and Washington, D.C.

Frequently Asked Questions

Do you offer emergency AC repair?

Yes. Call (703) 468-1339 for emergency service on commercial air conditioning systems.

Can you work on units that another contractor installed?

Yes. We service all major brands and systems, regardless of who installed them.

Why is my rooftop unit freezing up?

Ice usually points to low airflow from dirty filters or coils, a failed blower, or low refrigerant from a leak. Turn the unit off to let it thaw and call for service, since running it frozen can damage the compressor.

To request AC repair, call (703) 468-1339 or use our contact form.