Commercial HVAC Maintenance, Repair & Installation Services

A new air conditioning system is a long-term investment, and the quality of the installation matters as much as the equipment itself. Commercial Tech, Inc. installs commercial air conditioning systems for offices, retail centers, schools, warehouses, data rooms, and multi-tenant buildings in Northern Virginia, Maryland, and Washington, D.C.

We install Carrier, Trane, Daikin, and York equipment, as well as other major manufacturers, and we select systems based on your building, not on a single brand preference.

Systems We Install

• Packaged rooftop units (RTUs)
• Split systems and condensing units with air handlers
• Ductless mini-split and multi-zone systems
• VRF (variable refrigerant flow) systems
• Computer room and server room cooling
• Air-cooled and water-cooled chillers for larger buildings

Our Installation Process

Every project follows the same process, so nothing is left to chance:

• Site survey: we review the space, existing equipment, ductwork, electrical service, and roof or pad conditions.
• Load calculation: we size the system to the building’s actual cooling load to avoid short cycling, humidity problems, and wasted energy.
• Proposal: you receive a clear scope, equipment options, and pricing.
• Installation: we coordinate crane lifts, curb adapters, refrigerant piping, electrical, and controls.
• Start-up and commissioning: we verify refrigerant charge, airflow, and controls, and confirm the system performs as designed.

All refrigerant handling is performed by EPA Section 608 certified technicians.

Replacing an Older System

Systems that use R-22 refrigerant or are more than 15 years old are often expensive to keep running. Newer equipment uses less energy and can be paired with modern controls and building automation. We can evaluate your current equipment and give you an honest comparison of repair versus replacement.

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 installation 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

How long does a commercial AC installation take?

A single rooftop unit replacement is often completed in one day. Larger projects with multiple units, new ductwork, or chillers are scheduled in phases to keep your building operating.

Can you install during business hours?

Yes. We plan work around your schedule and can perform installations after hours or on weekends when needed to limit disruption.

What refrigerant do new systems use?

New commercial systems use lower global warming potential refrigerants under current EPA rules. We explain the refrigerant in each option and what it means for future service.

Call (703) 468-1339 or use our contact form to schedule a site survey.