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We are South Carolina's full-service mechanical contractor since 1903.

How may we be of service?

W.B. Guimarin service technicians provide proactive system maintenance and repairs for commercial, industrial, and institutional facilities all over South Carolina.

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If you need to make an emergency or after-hours service request, please call us directly at (803) 239-2300. We are available 24 hours a day, 7 days a week.

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CEO Carroll Heyward retires; Bill Waters takes over management

Carroll Heyward, Sr., the Chief Executive Officer for W.B. Guimarin & Company, officially announced his retirement effective January 1, 2015. W.B. Guimarin has been providing mechanical infrastructure to commercial and institutional customers in South Carolina for 111 years.  Carroll, Sr. has been leading the company since 1979 when his father, Albert R. Heyward II, sold…

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WBG joins the Unified Group

The Unified Group, a national organization of commercial HVAC companies, has selected W.B. Guimarin as its newest member. The Unified Group assesses prospective members based on the number of years in business, commitment to training, awards/accolades received, positive customer and vendor references, and a desire to improve or grow the service side of the business. W.B….

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WBG Awarded Two Merit Awards for Excellence in Construction

ABC Carolinas held its 2014 Excellence in Construction Awards in Charlotte on November 20th.  W. B. Guimarin submitted two projects for review, and both were awarded the sole Merit Awards for their respective categories. South Carolina State Museum Observatory, Planetarium, and 4D Theater Merit Award – Specialty Contractor, $1-2 Million  This 70,000 sf renovation and…

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We're Involved in Our Industry

Our trade organizations improve our industry. We encourage our employees to be actively involved in professional organizations. W.B. Guimarin & Company and its employees are proud members of the following.