East Tennessee’s Leading Commercial Plumbing & HVAC Contractor

Licensed, Insured & Bonded

Rest assured knowing we are EPA certified & meet or exceed the qualifications for professional HVAC & plumbing services.

Performance Driven

Our goal is to deliver the best results possible quickly and efficiently. We also comply with ISN standards.

Well-Equipped & Versatile

We are trained to handle a wide range of projects from plumbing & piping systems, HVAC, boiler and compressed air systems.

Performance-Driven, Quality Committed Commercial HVAC & Plumbing

We are an affiliate of the PHCC and its apprenticeship program, and are committed to the education and safety of our technicians.

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Highly train technicians

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Committed to Quality

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Service & Performance 1st

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(865) 951-1919

Hundreds

Projects Completed

Many

Happy Clients

Commercial HVAC & Plumbing Services in Knoxville

Commercial HVAC

We maintain and repair commercial heating and cooling systems across Knoxville.

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Commercial Plumbing

We are a full-service licensed plumbing contractor specializing in commercial and industrial projects.

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Commercial Piping

We install and repair piping systems in commercial and industrial applications.

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Plant Maintenance

We provide plant maintenance to keep commercial and industrial equipment working efficiently.

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Why McMahan Mechanical?

McMahan Mechanical, Inc. has been around for decades. We are dedicated to providing the best service and building long-term commercial and industrial relationships.

What is a Commercial HVAC system?

A commercial HVAC system has the same objective as a residential one. Its purpose is to heat and cool a space and keep the building at a comfortable temperature.

How do I know if I need a Commercial HVAC repair?

If your commercial heating & cooling system is having trouble maintaining an acceptable or comfortable temperature, that is a clear indication it is time for a repair or replacement. Additionally, if the unit stops working altogether, you will likely need a system repair or replacement.

What is the cost of a commercial HVAC repair or replacement?

The cost will vary depending on the size of the HVAC system we need to repair or replace, as well as the parts needed to make the repair. Additionally, the size of the facility will dictate the size and strength of the Commercial heating and cooling system we will need to install in order to maintain the proper temperature.

Ready for a Quote?

We are here to help you with all of your commercial HVAC,
plumbing, piping and plant maintenance needs.

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What our clients are
saying about us

The answer to all of the questions are all 5. Steve has always been great to work with. Honest, fair, timely, consistent. Hate to call him sometimes but always look forward to seeing him.

Jeff Rose

LCC of Jefferson City

We are very pleased with the work done and the service. Thank you all.

Randy Morgan

Ridgeview Terrace

Our Latest Work

Our work will meet or exceed your expectations. We can handle the toughest of projects and deliver impeccable results.

Proud Members of:

Knoxville’s Best HVAC & Plumbing Services

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East Tennessee’s Leading Commercial Plumbing & HVAC Contractor