843.554.6645 - Charleston Corporate Office

Cullum Constructors, Inc.

Cullum Constructors, Inc. is an innovative provider of mechanical design and construction services, combining employee experience and company resources to facilitate mechanical solutions with expertise. Cullum specializes in heating, air conditioning, plumbing, medical gas piping, and process piping projects ranging from 2,000 square foot computer rooms to complex 600,000 square foot healthcare diagnostic, treatment, and research facilities.  The company also has extensive project experience with manufacturing facilities, laboratories, convention centers, hospitals, sports complexes, aquariums, dormitories and office buildings.  As a fully licensed mechanical contractor in SC, NC and GA, Cullum Constructors, Inc. is well suited to perform renovation, new construction, and mixed addition projects.



Cullum offers clients the option to pursue projects from a design-build or design-assist approach.  The mechanical staff at Cullum has the field experience to understand how phasing, methods and materials affect system design and installation.

  • Design-Build
  • Design-Assist


Cullum routinely installs HVAC systems including:

  • Air handling units
  • Boilers
  • Chilled water
  • Chillers
  • Cooling towers
  • Dual-temperature
  • Evaporative cooling
  • Heat pump
  • Industrial ventilation
  • Pumps
  • Radiant heat
  • Steam
  • Thermal storage



Company craftsmen are skilled in the installation of plumbing systems including:

  • Acid waste
  • Domestic water
  • Medical gas
  • Natural gas
  • Roof drain systems
  • Sanitary waste


Piping systems Cullum routinely prefabricates and installs include:

  • Combustible gases
  • Compressed air
  • Corrosive liquids
  • Fuels
  • Process Fluids


Sheet metal and pipe prefabrication are performed in 18,000 square feet of project support space.  Recent investments in Autodesk and Revit modeling and fabrication software, followed by sheet metal and pipe CNC plasma cutting and roll-forming machinery, are helping deliver efficient high quality products and services to effectively serve our clients.

  • Pipe fabrication
  • Sheet metal fabrication