Commercial HVAC Maintenance, Repair & Installation Services

Restaurants, hotels, healthcare facilities, schools, and office buildings depend on a steady supply of hot water. When a commercial water heater fails, it can stop kitchen operations, violate health codes, and inconvenience tenants. Commercial Tech, Inc. repairs, replaces, and installs commercial water heating equipment across Northern Virginia, Maryland, and Washington, D.C.

Water Heating Equipment We Service

• Gas-fired commercial tank water heaters
• Electric commercial tank water heaters
• High-efficiency condensing water heaters
• Tankless and on-demand water heaters, including multi-unit racks
• Indirect water heaters and storage tanks connected to boilers
• Recirculation pumps, mixing valves, and expansion tanks

Water Heater Repair

Our technicians diagnose the full system, not just the heater. Common problems we repair include:

• No hot water, or water that runs out too quickly
• Pilot, igniter, flame sensor, and gas valve failures
• Failed heating elements and thermostats on electric units
• Leaking tanks, fittings, and relief valves
• Venting and draft problems that cause units to shut down
• Scale and sediment buildup that reduces capacity and efficiency

Venting, combustion air, and relief valve problems are safety issues. We correct them before a unit is returned to service.

Replacement and New Installation

When a tank is leaking or a unit has reached the end of its service life, replacement is usually the safer and more economical choice. We size new equipment from your actual hot water demand, recovery rate, and peak usage periods, so you are not paying to heat more water than you need or running short during busy hours.

Installation includes removal and disposal of the old unit, gas or electrical connections, venting, relief valves, expansion tanks, start-up, and testing. We also install mixing valves where required to deliver safe water temperatures.

Preventive Maintenance

Annual flushing removes sediment that shortens tank life. Our maintenance also includes testing relief valves, inspecting anodes, checking burners or elements, and verifying venting and controls.

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 water heating 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

Should I choose a tank or tankless water heater?

It depends on how your building uses hot water. Tankless units save space and standby energy, while tank systems handle large, sudden draws well. We will recommend the right fit for your demand.

How long does a commercial water heater last?

Commercial tank water heaters typically last 8 to 12 years. Hard water and heavy daily use shorten that, which is why regular flushing matters.

Why does my water heater make popping or rumbling noises?

That sound is usually sediment at the bottom of the tank. It reduces efficiency and stresses the tank. Flushing often helps, but a heavily scaled tank may need replacement.

Call (703) 468-1339 to schedule water heater repair or request a replacement estimate.