Now Hiring:

HVAC Technicians, Plumbers & Plumber Helpers, Sheetmetal Mechanics, HVAC Controls Technician and more!

Mechanical Construction and Maintenance Company

Cullum has been the top name in mechanical construction and HVAC service organizations in the Southeast since 1972.

Construction

Cullum Mechanical’s Construction team specializes in providing comprehensive mechanical design and construction services.

Service

Cullum Mechanical’s Service team is a leader in the HVAC industry, specializing in the repair, service, installation, and maintenance of industrial and commercial HVAC systems.

Mechanical Construction and Maintenance Company

Cullum has been the top name in mechanical construction and HVAC service organizations in the Southeast since 1972.

Join Our Team

We Are Hiring!

Available Positions:

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HVAC Service Technicians

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Commercial Plumbers & Helpers

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Building Automation Systems (BAS) Technician

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Sheet Metal Mechanic & Helpers

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HVAC PM Technicians

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Pipefitter/Welder

About Cullum Mechanical

Cullum Mechanical Construction, Inc. was founded in 1972 by Furman Cullum in Charleston, South Carolina. Over the next few decades, the company experienced substantial growth across the state. By 1999, Cullum’s operations expanded into two specialized subsidiaries: Cullum Constructors, Inc. and Cullum Services, Inc.

These subsidiaries quickly became leaders in the mechanical contracting industry, recognized for providing innovative solutions and exceptional service throughout the Southeast. This growth solidified Cullum’s reputation for excellence and expanded its capabilities in mechanical construction and HVAC services across South Carolina, North Carolina, and Georgia.

In 2023, strategic plans began to ensure continued leadership in the industry with the formation of Cullum Mechanical, LLC. This strategic transition represents an exciting milestone, reflecting the company’s commitment to evolving with industry demands, providing future leadership, and continuing to deliver reliable, innovative, and efficient mechanical solutions.

For over 50 years, Cullum has been rooted in tradition, driven by innovation, and inspired by a mission to serve clients better.

Today, Cullum’s corporate headquarters in North Charleston, South Carolina, spans 30,000 square feet, with an additional 18,000 square feet dedicated to project support, including state-of-the-art sheet metal and pipe prefabrication facilities. To further enhance service capabilities, Cullum also operates HVAC repair and service locations in Columbia and Greenville, South Carolina.

Let’s Build Together.
Contact Cullum Mechanical today to discuss your next project and experience the dedication, quality, and innovation that have defined us for generations.

What We Do

Mechanical Construction and Maintenance

Project Management
Pre-construction
Plumbing
HVAC/R
Process Pipe

HVAC Services

HVAC Preventive Maintenance
HVAC Installation
HVAC Retrofitting
HVAC Replacement
HVAC Repair

Full-Service Mechanical
Construction and
Maintenance Company

Cullum has been the top name in construction and HVAC service organizations in the Southeast since 1972. Positively impacting and serving commercial and industrial industries is the company’s goal while continuing to set the standard for customer service.

Cullum’s Core Values

Through teamwork and collaboration, we deliver positive results for employees, suppliers and customers in our planning and execution of every project.

We acknowledge everyone has value and we treat them with dignity to build relationships based on  trust that are essential to our growth.

With training and development we convert our ideas and experience into action, expanding our capability to add value to the organization and those we serve.

We have the courage to consistently conduct business with sound moral principles and character with reliability and fairness at all levels.

Cullum Numbers in 2024

Hours Worked

Revenue

Team Members

LEADING HVAC CONTRACTOR IN SOUTH CAROLINA

Cullum specializes in heating, ventilation, air conditioning (HVAC), plumbing, medical gas piping, and process piping projects. It also has extensive project experience with manufacturing facilities, laboratories, convention centers, hospitals, sports complexes, aquariums, dormitories and office buildings.

Careers

Services

APPRENTICESHIPS

Technicians have extensive knowledge and technical skills in servicing a diverse range of HVAC equipment from small split systems to large chilled/hot water systems, including cooling towers and chillers.

Paramount to Cullum’s services is the company’s expert project management team. The majority of project managers and superintendents have been with Cullum for over 20 years, and this expertise contributes to service excellence during all phases of any project.

  • GreenvilleGreenville Office:(864) 228-6571

  • ColumbiaColumbia Office:(803) 951-9366

  • CharlestonCharleston Office:(843)-747-2900

Cullum holds licenses in the following areas:

South Carolina – unlimited mechanical contracting license and unlimited general contracting license

North Carolina – mechanical contractor license and plumbing license

Georgia – mechanical contractor license and plumbing license