WB Guimarin

Since 1903, WB Guimarin has established itself as South Carolina's premier mechanical contractor, delivering HVAC, plumbing, and mechanical solutions with unwavering commitment to integrity and innovation. Our century-long legacy is built on serving commercial, industrial, and institutional clients across diverse sectors including healthcare, education, and cultural institutions. With a team of factory-trained technicians and cross-trained project managers, we combine cutting-edge technology with time-tested expertise to ensure systems operate at peak efficiency. Our proactive approach extends beyond installation to include 24/7 emergency service, preventive maintenance plans, and strategic facility management. Recognized for safety excellence through OSHA certifications and a dedicated safety officer, we maintain rigorous standards that protect both workers and clients.

As a fourth-generation family-owned business, we balance tradition with continuous improvement, investing in new technologies and processes to reduce operating costs while extending equipment lifespans. Our comprehensive service model covers everything from small-scale retrofits to large construction projects, supported by in-house sheet metal fabrication and pipe prefabrication capabilities. With three regional offices serving Upstate, Midlands, and Lowcountry areas, we combine local responsiveness with statewide resources. Our partnerships with leading manufacturers like TRANE and Carrier, along with specialized expertise in medical gas installation and data center cooling, position us as trusted advisors for complex mechanical needs. Through every project, we uphold our founding principles of community service, employee development, and uncompromising quality.