HVAC and Plumbing

In my 15 years of experience as a Project Manager, I have never worked with such a motivated and dedicated group of individuals. The pride in workmanship, desire to complete the project on schedule, long hours including weekends, was exemplary to say the least.

-Michael Foltz, Pattie Elementary School Owner Representative

Did you know that according to the popular facility managers online magazine, BUILDINGS, allowing your equipment to operate until failure is 10 times more likely to cost you more than regular maintenance? To keep your equipment running at peak performance, conducting proactive preventive maintenance by a qualified technician is essential. Our technicians are graduates of a five-year apprenticeship program through the Steamfitter Local 602 or Plumbers Local 5. Our technicians are also Union Association (UA) STAR Certified and represent the best in their field.

We offer a wide range of HVAC and Plumbing services, along with preventive maintenance contracts. Our preventive maintenance contracts provide you with discounts on material and labor. To learn more about our preventive maintenance contracts or schedule service, call (301) 430-6005 or email our service department. For emergency service, call (301) 430-6005 day or night.

Our HVAC Services

  • Packaged Rooftop Units
  • Water Source Units
  • Ductless & Standard Split Systems
  • Air Handling Units
  • Pumps
  • Fans
  • VAV Terminal Units
  • Boilers
  • Variable Frequency Drives
  • Refrigeration Equipment
  • Ice Machines
  • Chillers (Excluding Centrifugal)
  • Cooling Towers
  • Controls (Non DDC)
  • Pneumatic Systems
  • CRAC Units
  • Variable Refrigerant Flow

Cooling Tower

A cooling tower is a specialized heat exchanger where hot water is mixed with air to reduce the temperature of the water. As the water is cooled, heat is released into the atmosphere through evaporation. The cooled water is then pumped back into the system.


Air Handling Units

An air handler, or air handling unit (often abbreviated to AHU), is a device used to regulate and circulate air. It houses a fan, heating or cooling elements, filter racks or chambers, sound attenuators, and dampers. Air handlers connect to a ductwork ventilation system that distributes the conditioned air through the building and returns it to the AHU.


Hydronic Pumps

Hydronic Pumps are external water pumps that move water throughout the components of the HVAC system.


Centrifugal Chiller

A Centrifugal Chiller contains a compressor system that moves a heat-absorbing refrigerant around a coil. It uses the vapor compression cycle to chill water. It throws off the heat collected from the chilled water plus the heat from the compressor to a water loop. The water loop is cooled by a cooling tower.

Our Plumbing Services

  • Camera Pipe Inspections
  • Drainpipe Clearing
  • Backflow Services & Testing
  • Water Heaters
  • Storm & Sewer Pumps
  • Domestic Water Booster Pumps
  • Medical Gas Systems
  • Fixtures
  • Pressure Relief Valve
  • Roof Drains

Water Closet Carrier

A water closet carrier, also known as a toilet carrier, is used to connect the toilet to the sanitary drainpipe system. It is designed to specifically match the installed fixture.


Domestic Cold-Water Line

The domestic cold-water line is typically made up of copper in a commercial building and supplies water to the fixtures.


Sanitary Waste System

Sanitary waste system is typically made up of 3” or 4” cast iron pipe joined together by a rubber coupling surrounded by a metal sheath.


Air Vent System

A sanitary vent system is needed to allow air to escape as water fills the piping system. Otherwise a vacuum effect is created, and water cannot flow properly.

Service Inquiries

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