Commercial HVAC Maintenance, Repair & Installation Services

Heat pumps heat and cool from a single system, which makes them a common choice for offices, retail spaces, schools, and light commercial buildings. When one stops working, you lose both heating and cooling at once. Commercial Tech, Inc. installs, repairs, and maintains commercial heat pump systems throughout Northern Virginia, Maryland, and Washington, D.C.

We work on packaged rooftop heat pumps, split systems, ductless mini-split and multi-zone systems, VRF (variable refrigerant flow) systems, and water-source heat pumps connected to building loops. Our technicians service Carrier, Trane, Daikin, and York equipment, along with other major manufacturers.

Heat Pump Repair

Heat pumps have more moving parts than a standard air conditioner, and many problems show up only in one mode. Our technicians test the system in both heating and cooling to find the actual cause rather than replacing parts by guesswork. Common issues we repair include:

• Reversing valve failures that leave the system stuck in heating or cooling
• Defrost control and sensor problems that cause outdoor coils to ice over
• Compressor, contactor, and capacitor failures
• Refrigerant leaks, low charge, and failed expansion valves
• Auxiliary and emergency heat strips that run constantly and drive up energy costs
• Thermostat, control board, and communication faults on VRF and ductless systems

All refrigerant work is performed by EPA Section 608 certified technicians, and leaks are located and repaired before a system is recharged.

Heat Pump Installation and Replacement

A correctly sized heat pump keeps occupants comfortable and avoids short cycling and high utility bills. Before recommending equipment, we review the building’s heating and cooling loads, the existing ductwork and electrical service, and how the space is used. We then handle the full installation: removal of old equipment, refrigerant recovery, setting new units, line sets, electrical connections, controls, start-up, and commissioning.

If your existing system is aging, we can compare the cost of continued repairs against replacement so you can make a decision based on real numbers.

Maintenance That Prevents Breakdowns

Because a heat pump runs year-round, it benefits from service in both spring and fall. Our maintenance visits include cleaning coils, checking refrigerant pressures, testing the reversing valve and defrost cycle, inspecting electrical components, replacing filters, and verifying thermostat operation.

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 heat pump 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 heat pumps work in Virginia winters?

Yes. Modern heat pumps, especially cold-climate and VRF models, heat efficiently well below freezing. Auxiliary heat covers the coldest days. If your system relies heavily on backup heat, it may need repair or adjustment.

How long does a commercial heat pump last?

Most commercial heat pumps last 12 to 15 years with regular maintenance. Units in harsh rooftop locations or without routine service often wear out sooner.

Is a VRF system a good fit for my building?

VRF systems work well in offices, schools, and mixed-use buildings with many zones that need different temperatures at the same time. They can also heat one area while cooling another. We review your layout and loads before recommending one.

To schedule heat pump service or request a replacement estimate, call (703) 468-1339 or use our contact form.