Business Details
50+ Years
experience
Emergency
services
Trusted HVAC Contractors in Columbia, SC Since 1937
WO Blackstone has been a trusted leader in commercial HVAC mechanical contracting since 1937, serving clients across South Carolina. Our team of skilled craftsmen, project managers with mechanical engineering expertise, and dedicated support staff deliver full-service construction, maintenance, and emergency repair solutions. With a legacy built on Quality, Integrity, and Efficiency, we specialize in designing and implementing HVAC systems for commercial office buildings, hospitals, industrial plants, and institutional facilities.Our preventive maintenance programs and 24/7 emergency services ensure uninterrupted operations for clients, while our in-house sheet metal fabrication and piping teams maintain strict quality control. As a third-generation family-owned business, we combine decades of industry experience with cutting-edge technology to meet evolving energy efficiency standards and client needs.
Services
HVAC Construction
Chiller Installation
Preventive Maintenance
Emergency Repairs
Design-Build Services
Details
- Year established: 1937
Highlights and features
- 80+ years of experience in commercial HVAC systems since 1937
- In-house sheet metal fabrication and piping teams for quality control
- 24/7 emergency service with certified technicians available immediately
- Preventive maintenance program reduces equipment failures by 40%
- Third-generation family-owned business with deep industry expertise
What people say
Prompt emergency service
Skilled technicians
Reliable maintenance programs
Energy-efficient solutions
Professional team
Services
HVAC Construction
Our full-service HVAC construction team delivers custom mechanical systems for commercial buildings. From design-build projects to retrofit installations, we handle all aspects of HVAC system implementation. With in-house engineering expertise and certified technicians, we ensure optimal performance and energy efficiency for offices, hospitals, and industrial facilities.
Chiller Installation
Specialized chiller installation and maintenance services for commercial properties. Our technicians handle both new installations and system upgrades with precision. We work with all major brands and provide comprehensive support for chilled water systems, ensuring reliable temperature control for critical operations.
Preventive Maintenance
Customized preventive maintenance programs extend equipment lifespan and prevent unexpected failures. Our technicians perform regular inspections, filter replacements, and system optimizations. This proactive approach improves energy efficiency by up to 30% while maintaining consistent indoor climate control for commercial spaces.
Emergency Repairs
Immediate HVAC repair services available 24 hours a day, 7 days a week. Our emergency response team addresses critical system failures promptly. With fully equipped service vehicles and certified technicians, we restore operations quickly for commercial clients across South Carolina.
Design-Build Services
Comprehensive design-build solutions that streamline HVAC system implementation. Our engineers collaborate directly with architects and contractors to create efficient mechanical systems. This approach reduces project timelines by 20% while ensuring seamless integration with building requirements and energy efficiency standards.
People
Jeffrey E. Griffin
President & Owner
Jeffrey E. Griffin leads WO Blackstone with over 20 years of HVAC industry experience. He focuses on technological innovation while maintaining the company's core values of Quality, Integrity, and Efficiency since becoming owner in 2020.
Lewis Caswell
Former Owner
Lewis Caswell served WO Blackstone for 56 years, including 22 years as owner. His leadership emphasized service excellence and customer satisfaction, continuing the company's legacy of mechanical contracting excellence established in 1937.
William O. Blackstone
Founder
William Oscar Blackstone established the company in 1937 as a steamfitter. His commitment to quality workmanship and community service laid the foundation for the company's enduring success and reputation across South Carolina.
Harry McDowell
Former President
Harry McDowell led WO Blackstone from 1970-1982 after serving in WWII. As holder of South Carolina's oldest Mechanical PE license, he expanded the company's engineering capabilities and professional standards during his tenure.
David 'Hub' Hubbard
Senior Vice President
David 'Hub' Hubbard dedicated 40 years to WO Blackstone, rising from warehouse staff to Senior Vice President. His long-term service exemplifies the company's commitment to employee development and loyalty over its 87-year history.
Questions
What HVAC services do you offer?
We provide full-service HVAC solutions including construction, maintenance, chiller installation, design-build projects, and 24/7 emergency repairs for commercial clients across South Carolina.
Do you offer emergency HVAC service?
Yes, our 24/7 emergency service responds immediately to critical HVAC failures with certified technicians available at (803) 252-8222, option 2.
What areas do you serve?
We serve all major cities in South Carolina including Columbia, Charleston, Greenville, Spartanburg, Florence, and Aiken with comprehensive mechanical contracting services.
How can I schedule maintenance?
Contact us at (803) 252-8222 to discuss customized preventive maintenance plans that improve system efficiency and extend equipment lifespan for commercial properties.
What makes you different from other contractors?
With 87 years of experience, in-house sheet metal fabrication, and third-generation leadership, we combine proven expertise with modern technology to deliver reliable, energy-efficient HVAC solutions.
Do you handle large commercial projects?
Yes, our team manages complex commercial HVAC projects from design through installation, including data centers, hospitals, and industrial facilities across South Carolina.
