G&B Mechanical is an air conditioning contractor in Charleston, SC. The business specializes in HVAC, plumbing, medical gas piping, and process piping projects for industrial and commercial clients. It holds an unlimited mechanical contracting license and an unlimited general contracting license in SC, along with mechanical contractor and plumbing licenses in North Carolina and Georgia. The company serves the Southeast region, with a rating of 3.80 based on 138 reviews.
The organization traces its roots to 1972 in Charleston, SC, when it was founded by Furman Cullum. Over the following decades, the company expanded its operations across the state. By 1999, its structure included specialized subsidiaries for construction and services. In 2023, the company formed Cullum Mechanical, LLC to continue its operations. The corporate headquarters in North Charleston spans 30,000 square feet, with an additional 18,000 square feet dedicated to project support, including sheet metal and pipe prefabrication facilities. The team provides design-build and design-assist services, managing mechanical contracts, budgeting, scheduling, and trade coordination. Plumbing projects include systems for processing plants, healthcare facilities, and commercial office buildings. HVAC services cover repairs, replacements, preventive maintenance, and retrofits for equipment such as RTUs, chilled water systems, split systems, heat pumps, and industrial ventilation systems. Preventive maintenance activities include coil cleaning, wire inspections, equipment checks, belt checks, filter changes, and refrigerant checks.
G&B Mechanical maintains an established track record built on a large base of customer reviews. This standing reflects the company's long history of providing mechanical construction and maintenance services in the Charleston area. The business continues to serve commercial and industrial clients with its specialized mechanical contracting capabilities.
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