Located in Muscle Shoals, Alabama
who we are
For more than a century, the Johnson Companies have been building excellence—delivering complex construction projects with craftsmanship, integrity, and precision. Rooted in over 100 years of proven performance, we continue to evolve, investing in the latest tools, technology, and training to meet the demands of today’s construction environment. From our 41,000-sq-ft fabrication facility in Muscle Shoals, Alabama, our integrated team unites general contracting, mechanical fabrication, and full electrical services under one roof. Supported by a modern equipment fleet, advanced project management systems, and a highly skilled workforce, we’re equipped to deliver turnkey solutions or specialized subcontracting with unmatched efficiency. At the Johnson Companies, our history defines our foundation—but our innovation defines our future.
our portfolio
Click to learn more about each company
General
construction projects
Johnson Contractors, Inc. is a highly diversified general construction company that specializes in industrial, manufacturing, commercial, educational..
Mechanical construction projects
J.K. Johnson Mechanical Contractors specializes in industrial and commercial projects. Process piping, mechanical equipment, metalwork, HVAC...
Electrical
Contstruction projects
Johnson Electric Company specializes in electrical construction projects including bus duct, high voltage, instrumentation and controls, and security systems...
our process
Let’s Build Something that Matters
Comprehensive Evaluation
Our process begins with a thorough assessment of project requirements. We engage with clients to understand their specific needs and preferences, ensuring alignment from the outset.
Strategic Planning
Next, we develop a detailed project plan that outlines timelines, resource allocation, and construction methods. This proactive approach sets clear expectations and lays the groundwork for success.
Collaboration with Partners
We partner with engineering firms to create innovative design/build solutions. This collaboration ensures all aspects of the project are addressed effectively, leading to enhanced outcomes.
Rigorous Project Management
Throughout construction, we employ stringent project controls to monitor progress. Regular updates and adjustments keep the project on track, ensuring that we meet deadlines and budgets.
Quality Assurance
Our commitment to quality is ingrained in our process. We conduct regular inspections and evaluations to maintain high standards and immediately address any issues that arise.
Continuous Improvement
After project completion, we gather feedback to assess performance and identify areas for improvement. This ongoing reflection ensures that we continuously enhance our processes and maintain client satisfaction.
$3.5B
Investment in USD
70+
Total Projects
5.5 MT
C02 Emission Saved
60+
Strategic Partners
TESTIMONIALS
WHAT CLIENTS SAY
"MDS has worked with JK Johnson Mechanical Contractors for over 15 years. We have always experienced first-class infield performance as well as top class coordination with their office staff for contract administration. JK Johnson Mechanical Contractors has always provided our Owner clients with top class quality and coordination. Our owner clients have always been complimentary of the work provided by JK Johnson Mechanical Contractors. JK Johnson Mechanical Contractors is not known to look for a Change Order but to install the work required per the Design Intent we provide. JK Johnson Mechanical Contractors is one of our top recommended HVAC & Plumbing Contractors for our projects to Owner clients."
Johnny Echols, PE
Principal Engineer
Mechanical Design Services, Inc.
WHAT CLIENTS SAY
The team at JK Johnson has consistently demonstrated professionalism, reliability, and a strong commitment to quality. Whether navigating tight schedules, adapting to changing project needs, or delivering precise workmanship, they’ve proven time and time again that they are a trusted and valuable partner. Across every project we’ve collaborated on, they’ve met expectations—and often exceeded them—in areas such as communication, safety, responsiveness, and overall execution. Their proactive approach and willingness to go the extra mile have had a meaningful impact on our project success and customer satisfaction. We truly appreciate their continued partnership and look forward to many more successful projects together.
Stuart Rast
Carrier Commercial Service
Division of the Carrier Corporation
WHAT CLIENTS SAY
"J K Johnson Mechanical has consistently delivered high-quality HVAC, plumbing, process piping, and electrical projects for Madison City Schools. Their team is professional, responsive, and understands the importance of completing work efficiently with minimal disruption to our facilities. We value their reliability, they bring to every project."
KEVIN GUEST
Maintenance Supervisor
Madison City School System
WHAT CLIENTS SAY
"J K Johnson Mechanical Contractors, Inc. has completed numerous projects for Madison County Schools, including new construction, cooling tower replacements, HVAC unit upgrades, and ongoing service work. They consistently deliver quality workmanship, stay on schedule, and understand the unique needs of school facilities. Time and time again, they have proven to be a dependable and professional mechanical contractor."
JOSEPH CUZZORT
Director of Operations
Madison County Schools
WHAT CLIENTS SAY
"J. K. Johnson Mechanical Contractors has consistently been a trusted and reliable partner for our school district’s HVAC and plumbing needs. They have played an integral role in many of our renovation and new construction projects, always delivering high-quality workmanship on schedule. I highly recommend them for their professionalism, expertise, and commitment to excellence."
DAVID WIGGINTON
Maintenance Coordinator
Florence City Schools
Why Johnson
Founded in 1918, the Johnson Companies offer more than 100 years of continuous construction experience, providing owners with confidence built on longevity, repeat work, and a deep understanding of industrial and commercial environments.
As a signatory contractor with Plumbers & Pipefitters Local 760 since its founding, the Johnson Companies have remained committed to skilled union labor for over a century. This ensures consistent training, safety standards, and workforce reliability across all projects.
Through Johnson Contractors, Inc., J.K. Johnson Mechanical Contractors, Inc., and Johnson Electric Company, Inc., the organization can self-perform general, mechanical, and electrical scopes—either independently or as a coordinated team—providing flexibility and reduced interface risk for owners.
The company is owned and led by professionals who have advanced through the organization, including long-tenured project managers and financial leadership. Decisions are made by people who understand field conditions, project controls, and owner priorities.
Headquartered in Muscle Shoals, Alabama, the Johnson Companies operate from a facility that includes 41,000 square feet of fabrication space, enabling schedule control, quality oversight, and rapid response to field needs.
Safety is embedded in planning and execution, supported by formal programs and leadership accountability. This focus protects workers, schedules, and owners’ operations—especially in active industrial facilities.
Johnson projects are defined by upfront planning, disciplined execution, and transparent communication. Whether serving as a prime contractor or specialty subcontractor, the company emphasizes schedule certainty, budget control, and long-term client relationships.
Who we have worked with
We are committed to maintaining our ranking as one of the top recognized safety programs.
The Johnson Companies safety program is directed by a Certified Safety Professional with over 35 years of safety experience in all facets of industrial and commercial applications.
The Johnson Companies are deeply committed to and take pride in our safety program record. We have a long history of maintaining a low Experience Modification Rating (EMR). As examples, our recent EMR’s have been 0.64 for 2023, 0.63 for 2022, 0.57 for 2021, 0.62 for 2020, 0.57 for 2019, 0.62 for 2018, 0.58 for 2017, 0.58 for 2016, and 0.67 for 2015. Our history of an EMR better than the industry standard reflects the consistent commitment to and importance placed on safety by all our companies and their management and employees.
The rigorous safety program followed by all of the Johnson Companies led to the receipt of the Associated General Contractors (AGC) award as the safest contractor in the state of Alabama and to the AGC’s Certificate of Commendation for Excellent Safety Record. The Johnson Companies are committed to maintaining this ranking as one of the top recognized safety programs.
Our number one concern is the safety of the people on our jobsites.
