Business Details
50+ Years
experience
Emergency
services
Your Trusted HVAC Partner in Charleston, SC
Cullum Constructors Inc Mechanical has been a leader in mechanical construction and HVAC services since 1972, serving commercial and industrial clients across the Southeast. Founded in Charleston, South Carolina, the company expanded into specialized subsidiaries by 1999, establishing itself as an industry innovator. With over 50 years of experience, we combine tradition with cutting-edge solutions to deliver reliable mechanical systems. Our team of experts specializes in HVAC installation, maintenance, and retrofitting for diverse sectors including manufacturing, healthcare, and education. Headquartered in North Charleston, we operate 30,000 square feet of facilities and maintain service locations in Columbia and Greenville.Our commitment to quality, respect, innovation, and integrity guides every project we undertake. We serve South Carolina, North Carolina, and Georgia with a focus on client satisfaction and operational excellence. Our 24-hour dispatch service ensures prompt response to urgent needs across our service areas. With over 225 team members and $67 million in annual revenue, we remain family-owned and community-focused. Our decades of experience, technical expertise, and ethical business practices make us the trusted choice for mechanical contracting solutions.
Services
HVAC Installation
Plumbing Services
Preventive Maintenance
Process Piping
Emergency Repairs
System Retrofitting
Commercial HVAC
Industrial Refrigeration
Mechanical Construction
Building Automation
Details
- Year established: 1972
Highlights and features
- We have over 50 years of experience in mechanical construction and HVAC services
- Our expert project management team averages 20+ years with the company
- We provide 24/7 emergency dispatch services across the Southeast
- We maintain state-of-the-art fabrication facilities for custom solutions
- We prioritize safety with over 1,500 annual safety training sessions
Services
HVAC Installation
We design and install complete HVAC systems for commercial and industrial facilities. Our expert technicians handle projects from small split systems to large chilled water systems. With state-of-the-art fabrication facilities, we ensure precise installations that meet exact specifications. Our team follows strict safety protocols and industry standards for every installation project.
Preventive Maintenance
Our comprehensive preventive maintenance programs keep HVAC systems operating at peak efficiency. We service equipment ranging from cooling towers to air handler units. Regular maintenance prevents unexpected breakdowns and extends equipment lifespan. Our technicians use advanced diagnostic tools to identify potential issues before they become major problems.
Emergency Repairs
We provide 24-hour emergency dispatch for urgent HVAC repairs. Our rapid response team handles critical system failures with immediate attention. We complete repairs after providing clear explanations and comprehensive quotes. Our service vehicles are stocked with essential parts for quick field repairs.
Process Piping
We design and install process piping systems for manufacturing and industrial facilities. Our certified welders handle complex piping configurations with precision. We work with various materials including stainless steel and high-pressure piping systems. Our fabrication shop creates custom components to exact specifications before on-site installation.
Mechanical Construction
We offer full mechanical construction services from design through installation. Our team handles projects of all sizes including large-scale commercial buildings and industrial facilities. We coordinate with architects and engineers to ensure systems meet building requirements. Our project managers oversee timelines, budgets, and quality control throughout each construction phase.
Questions
What HVAC services do you offer?
We provide comprehensive HVAC services including installation, preventive maintenance, repair, replacement, and retrofitting for commercial and industrial systems.
Do you offer emergency HVAC services?
Yes, we provide 24/7 emergency dispatch services for urgent HVAC repairs and maintenance needs.
What areas do you serve?
We serve South Carolina, North Carolina, and Georgia with offices in Charleston, Columbia, and Greenville.
What other mechanical services do you provide?
In addition to HVAC, we offer plumbing services, process piping, industrial refrigeration, and mechanical construction solutions.
How experienced is your team?
Our project managers average 20+ years with the company, and we have over 225 team members with extensive industry expertise.
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Reviews (6)
Dea Sc
Nov 27, 2021
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Needed HVAC repair and maintenance for office building located in Charleston SC. Cullum Mechanical always does a fantastic job maintaining our HVAC systems. Its great to have a local HVAC company in the Charleston area that we can rely on for quality and professionalism. Services: Repair HVAC, HVAC system maintenance, A/C system repair
C. B.
May 20, 2021
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Cullum is fantastic! I run a wedding venue that needs very fast assistance when something goes wrong and Cullum is always so responsive and quick to be at our aid. They have had to troubleshoot problems that I think often threw them for a loop and they have always been so helpful and creative and willing to dig in and find a solution. Professionals who know their stuff! I would highly recommend for any type of need.
Dano Arbon
Feb 13, 2020
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These Guys are Great! They really know what they are doing and they have been great to work with. If you need HVAC services or Mechanical Engineering and you're in the Charleston area, then give them a call!
Carley Russell
Sep 03, 2019
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I personally have never had to use Cullem but my father is one of their lead technicians. They are an amazing company. Most of the guys do an amazing job!
Chris Casner
May 17, 2019
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Had someone come out to give me an estimate to install a commercial exhaust hood. I had all of the equipment except needing duct work. Was told that I'd receive an estimate. Called them 3 times and finally was told it's not what they do and they weren't going to charge me for the time. Really?
Brittney Pezzullo
Dec 11, 2018
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Had to find someone to qfuickly come fix an HVAC unit at my business. Worked with Lea and she was so quick and efficient in getting a tech out to my business asap. She was so nice and understanding and helpful and I could not be more appreciative of the wonderful customer service we received from this company!
