Business Details
50+ Years
experience
Emergency
services
Trusted HVAC & Mechanical Contractors in Upstate SC
Founded in 1947, we are a family-owned mechanical contracting company with over 75 years of experience in HVAC, plumbing, process piping, and special fabrication. Our commitment to safety, innovation, and quality has made us a trusted leader in the Upstate South Carolina region. We specialize in design-build projects across industrial, commercial, and institutional sectors, prioritizing employee growth, customer satisfaction, and community impact. Our team of skilled professionals delivers customized solutions, from system design to 24/7 maintenance, ensuring long-term reliability and efficiency. With licenses in four states, we combine generational expertise with cutting-edge technology to meet evolving industry demands.Our legacy of integrity and safety, exemplified by our annual Mike Alewine Safety Award, underscores every project we undertake. As a career-focused employer, we invest in work-life balance and continuing education to retain top talent. Our clients, including Trane U.S., Inc. and Hendrick Construction, consistently praise our collaborative approach and cost-saving expertise. From historic restorations like our 1947 Ford Truck celebration to complex healthcare and manufacturing projects, we remain dedicated to exceeding expectations. This enduring commitment to excellence has solidified our reputation as the oldest mechanical contractor in the Upstate.
Services
HVAC Installation
Plumbing Systems
Process Piping
Special Fabrication
24/7 Maintenance
Details
- Year established: 1947
Highlights and features
- We offer 75+ years of mechanical contracting expertise in HVAC and piping systems.
- Our family-owned business prioritizes safety with daily training and annual awards.
- We specialize in complex design-build projects across multiple market sectors.
- Our team includes fourth-generation leaders with engineering and operational excellence.
- We provide 24/7 emergency service with dedicated maintenance and repair specialists.
What people say
Exceptional level of experience
Significant cost savings
Leader in the construction industry
Collaborative approach
No scheduling delays
Services
HVAC Installation
We design and install HVAC systems for commercial and industrial facilities, including chillers, boilers, and custom air conditioning solutions. Our team optimizes energy efficiency while meeting strict project deadlines. Clients benefit from our 75 years of experience in system redesigns that reduce costs without compromising performance.
Process Piping
Our certified welders and pipefitters install systems for compressed air, process cooling, and gas distribution in manufacturing plants. We work with diverse materials using welding, brazing, and grooved connections. Clients rely on our expertise to avoid budget overruns and scheduling conflicts during complex installations.
Special Fabrication
We create custom stainless steel components like cleanroom grids, piping skids, and industrial platforms. Our fabrication shop produces tailored solutions for healthcare, manufacturing, and commercial applications. Clients receive precision-engineered items that meet exact specifications for durability and functionality.
24/7 Maintenance
Our round-the-clock service team handles HVAC and plumbing emergencies with rapid response times. We offer preventative maintenance plans to minimize downtime for hospitals, industrial plants, and commercial buildings. Clients receive priority support and cost-effective service agreements tailored to their operational needs.
Design-Build Projects
We manage full lifecycle projects from concept to commissioning across religious, healthcare, and educational sectors. Our in-house engineers collaborate with clients to optimize system designs before construction begins. Clients benefit from single-source accountability and proven expertise in delivering complex projects on time and within budget.
People
Jack Dill Jr.
CEO and Chairman of the Board
A Clemson graduate and registered P.E., Jack Dill Jr. has led Jennings-Dill for over 50 years, expanding its services to include HVAC, plumbing, and process piping while maintaining a focus on quality and safety.
Bruce Henson
President
With 25 years at Jennings-Dill, Bruce Henson holds a BS in Business Administration and HVAC/plumbing licenses in multiple states. He oversees daily operations as the third-generation family leader committed to safety and client satisfaction.
Tyler Henson
General Manager
A Clemson and Georgia Tech graduate, Tyler Henson joined the company in 2020 after working at GE. As a registered P.E. and fourth-generation leader, he ensures quality standards across all engineering and fabrication projects.
Mike Alewine
Safety Advocate
For 30 years, Mike Alewine shaped Jennings-Dill's safety culture through rigorous training programs. The annual Mike Alewine Safety Award honors his legacy of zero compromises on workplace safety until his passing in 2022.
John Jennings
Co-Founder
One of the original co-founders, John Jennings helped establish Super Supply Company in 1947, which evolved into Jennings-Dill, Inc., laying the foundation for the company's mechanical contracting expertise.
Questions
What services does Jennings-Dill provide?
We specialize in HVAC systems, plumbing, process piping, special fabrication, and 24/7 maintenance for industrial, commercial, and institutional clients.
How long has Jennings-Dill been in business?
We've served the Upstate South Carolina region since 1947, making us the oldest mechanical contractor in the area.
Do you offer emergency HVAC services?
Yes, our 24/7 service team handles emergency repairs and maintenance for all system types.
What industries do you serve?
We work across industrial, commercial, healthcare, education, and religious sectors with customized mechanical solutions.
Are your technicians licensed and trained?
Our team includes licensed HVAC and plumbing professionals with ongoing safety and skills training programs.
Can you handle large-scale design-build projects?
Yes, we've completed design-build projects in four states with expertise in system redesign and cost optimization.
