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44 Years
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Emergency
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Knoxville's Premier Mechanical Contractors
Founded in 1982 by Daniel R. Burnette, Interstate Mechanical Contractors has grown from a small operation with five employees to a family-owned enterprise with over 150 professionals serving commercial and industrial clients across East Tennessee. Our commitment to safety, quality, and integrity remains unwavering, supported by state-of-the-art fabrication facilities and a dedicated 24/7 service team. We specialize in mechanical construction, HVAC systems, plumbing solutions, and preventive maintenance, delivering projects ranging from $1,000 to $10 million.

Our in-house fabrication shops ensure precision and efficiency, while our preventive maintenance programs help clients reduce operational costs. Recognized for excellence by partners like Travelers Casualty and Surety, we continue to prioritize client satisfaction through transparent communication and adherence to industry-leading standards. With a legacy of completing complex projectsfrom healthcare facilities to sports arenaswe combine decades of experience with innovative methodologies to meet evolving industry demands.
Services
HVAC Services Plumbing Solutions Preventive Maintenance Special Projects Fabrication Services 24/7 Emergency Repairs
Details
  • Year established: 1982
Highlights and features
  • Family-owned with 40+ years of local expertise in mechanical contracting.
  • 24/7 emergency service for urgent commercial HVAC and plumbing needs.
  • In-house fabrication shops ensure precision and cost efficiency.
  • Custom preventive maintenance programs reduce long-term operational costs.
  • Proven track record with projects up to $10 million in diverse sectors.
What people say
Best of the Best Experienced and professional High-quality work Meets deadlines Safety-focused
Services
HVAC Services
We design, install, and maintain commercial HVAC systems, ensuring optimal climate control and energy efficiency. Our team handles repairs, replacements, and preventive maintenance for all brands. Clients benefit from reduced downtime and long-term cost savings through tailored service programs.
Plumbing Solutions
Our full-service plumbing division manages commercial and industrial projects, from new construction to emergency repairs. Specialized capabilities include medical gas piping and high-rise systems. Clients receive durable, code-compliant installations backed by 24/7 emergency support.
Preventive Maintenance
Customized maintenance plans extend equipment lifespan and prevent costly breakdowns. We analyze systems to recommend solutions tailored to facility needs. Clients gain predictable budgets and minimized operational disruptions through proactive care.
Special Projects
Fast-track projects like weekend shutdowns and equipment replacements are managed by dedicated crews. We handle budgets from $1,000 to $100,000 with rapid turnaround. Clients rely on our flexibility for time-sensitive mechanical needs.
Fabrication Services
In-house shops produce precision piping and sheet metal components, reducing lead times and costs. Our craftsmen use advanced technology for quality control. Clients benefit from faster project timelines and reduced weather-related delays.
People
Terry Self
President
Terry Self leads Interstate Mechanical Contractors with a focus on integrity and client satisfaction. Under his ownership since 2003, the company expanded to 150+ employees and a $32M annual revenue. He prioritizes safety and innovation in mechanical contracting.
Brent Smartt
Special Projects Manager
Brent Smartt oversees urgent mechanical projects, leveraging 20+ years of experience. His expertise ensures timely execution of fast-paced jobs ranging from $1,000 to $100,000. Clients trust his team for weekend shutdowns and critical repairs.
Tracy Moretz
Senior Project Manager
Tracy Moretz manages complex mechanical construction projects, ensuring adherence to budgets and deadlines. With decades at Interstate, she specializes in large-scale commercial systems, including healthcare and educational facilities.
Questions
What services does Interstate Mechanical Contractors offer?
We provide HVAC, plumbing, mechanical construction, preventive maintenance, and 24/7 emergency repair services for commercial and industrial clients.
Do you serve areas outside Knoxville?
Yes, we serve all of East Tennessee, including commercial and industrial facilities in surrounding cities.
Are you available for emergency repairs?
Yes, our 24/7 service line handles urgent HVAC and plumbing issues for commercial clients.
What types of preventive maintenance programs do you offer?
We create customized programs to reduce operational costs, including equipment analysis, recommended upgrades, and scheduled maintenance visits.
Can you handle large-scale construction projects?
Yes, we manage projects from $1,000 to $10 million, including design-build solutions for new commercial and industrial facilities.
Videos
Reviews (7)
Christian Bristol
Jan 02, 2021 Report
Positive:Professionalism,Punctuality,Quality,Responsiveness
The service technician, Tyler is the most professional and honest tech I have ever worked with. I can't recommend him enough.
OutlawFarms
Sep 28, 2020 Report
I work for sweetwater hospital and it's pretty sad that interstate mechanical has sheet metal guys fixing fixtures that interstate mechanical plumbers have broken and not properly sealed and even sealing the plumbers pipes going through the floor. I believe that these metal guys should be getting a raise or promotion for doing there job and the plumbers job when the plumbers are supposed to be here fixing there issues for inspection as not the first plumber has been here since Thanksgiving. All in all the mechanical side of the company seems to know what they need to do but the plumbing side is
Gregory Martin
Dec 29, 2019 Report
Interstate Mechanical is a trusted and reliable partner to my organization. The people there are the difference. It is a business built on pride, performance and organic growth. One of the best in the region!
Ashton Parks
Dec 25, 2019 Report
IMC is an amazing company to work for. They have been amazing to my family. I would recommend anyone looking for work to go apply there!
Andrew Frost
Nov 15, 2019 Report
Interstate Mechanical has a reputation for being one of the best contractors in town to work with. They are an integral part of Knoxville's development as well as many other cities.
Ryan Tenry
Sep 06, 2019 Report
Interstate Mechanical Contractors owners and staff are some of the nicest people I've ever met! They go to great lengths to take care of their customers, employees and service providers. If you are considering a relationship with this company, proceed with confidence that you are in good hands!
Nathan Callaway
Sep 03, 2019 Report
I have done business with IMC since 2007. They have excellent
management and employees from the office to the field. This is very rare in the commercial/industrial construction world to find the loyalty to employees and customers that IMC gives.