About Langston Construction Company

A general contractor that builds critical infrastructure with its own crews, serving utility, industrial, environmental, and physical-security clients. Headquartered in Piedmont, South Carolina, since 1969.

Our Story

Built one relationship at a time.

Langston Construction Company has been owner-operated for more than five decades, and the way it works today was shaped by the people who built it, one relationship at a time.

The company began in 1969, when Julian Langston opened a small contracting firm in Piedmont, South Carolina, building water and wastewater treatment work for communities across the upstate. For nearly two decades he ran the business himself, and built a reputation for careful work and standing behind it.

In the late 1980s, Julian brought in James Braswell, a Clemson-trained builder who had spent years with construction firms around Greenville. James carried an industrial general contracting book of business into the company, much of it serving the textile manufacturers that defined the regional economy at the time. When Julian retired toward the end of the 1990s, James took sole ownership and broadened Langston Construction Company’s work across industrial and environmental construction, all of it held to the standards of safety, quality, and process he believed a contractor should never compromise.

Jim Roberts joined in 2005 and Evan Sowell in 2006. They found they worked well together, and as James planned his own succession, he offered them the company. The ownership transition began around 2009, in the teeth of a difficult economy. The owners are candid that those years were lean and the staff was small enough that everyone did a little of everything. They were young, treated every opportunity as if it were their last, and built their customer-service standards in exactly those conditions. The foundation James had laid, they built upon rather than replaced. James fully retired in 2018.

Growth came the old-fashioned way, through word of mouth and reputation. Do good work, and clients come back, and they tell their peers. It takes a large group of people to finish a construction project, and Langston Construction Company’s relationships run not only to the owners it serves but to the subcontractors and suppliers who build alongside its own crews. The company still treats every project as the start of the next one.

The move into power and energy was an evolution, not a strategy session. Langston Construction Company never sat in a room deciding to leave one market for another. The industrial work it already did, with its stringent safety requirements and process discipline, transferred naturally to the electric utility market, and by 2013 and 2014 energy and power had become the majority of its volume.

01Pillar / Builders

BUILDERS

We build with our own crews the work others hand off to subcontractors.

Langston Construction Company is a general contractor that delivers the work directly. Carpenters, electricians, ironworkers, equipment operators, and concrete crews are on the Langston Construction Company payroll, not pulled from a roster of unknown trades. When we sign a contract, the people delivering the work are people we trained.

Through Langston University, our craft and leadership program, we develop trades from apprentice to journey-level and superintendent. The result for clients is one accountable crew, one accountable schedule, and one accountable safety culture, recognized as the 2026 AGC CSEA National Winner in the Utility Division.

02Pillar / Innovators

INNOVATORS

We are the contractor clients call when the project is hard.

Our project portfolio includes NERC CIP-014 substation physical security, IRA and IIJA federal energy work, ATF-rated explosives storage, water and wastewater plants with intricate process controls, and Department of Defense critical infrastructure. These are not jobs that fit a template.

We deploy lean construction practices, full-BIM coordination, value-engineered alternates, and the kind of preconstruction analysis that surfaces a problem before it costs the schedule. Our people come from utility, industrial, environmental, and commercial backgrounds, and that range of perspective is the engine behind every workable solution we deliver.

03Pillar / Partners

PARTNERS

Ninety percent of every year is repeat business.

Clients hire Langston Construction Company twice, three times, and across decades because we follow Corporate Customer Care guidelines that put transparent scope, schedule, and cost communication ahead of contractor self-interest. When an issue surfaces, it arrives with a recommended solution and a cost attached.

That trust has carried into multi-decade relationships with utilities, federal agencies, school districts, and Fortune-500 manufacturers. We treat every project as the start of the next one.

Our Mission

One project, one team, zero unsafe behaviors.

To consistently deliver a trouble-free project experience and to be recognized as a leader in industrial, commercial, environmental, and critical infrastructure construction. To be responsible and accountable in the performance of our work, focus on Zero Unsafe Behaviors, and provide construction solutions through teamwork.

Recognition

Awards and industry rankings

Recognized in the Carolinas and nationally for safety, growth, and being a place people choose to build a career.

2026 AGC CSEA National Winner

Utility Division. Associated General Contractors of America Construction Safety Excellence Award.

Best Places to Work in America

2025 No. 14 / 2024 No. 8. SC Biz News.

Best Places to Work in SC

2025 No. 6 / 2024 No. 1 / 2023 No. 26 / 2022 No. 7. SC Biz News.

Inc. 5000 Top Private Companies

2021 No. 4354 / 2020 No. 4144.

SC 25 Fastest Growing Companies

2021 No. 27 / 2020 No. 13. Greenville Business Magazine.

SC Excellence in Business Award

2021. Greenville Business Magazine.

Best Contractors to Work For

2021. ForConstructionPros.com.

Roaring 20’s Fastest Growing Companies

2020 No. 10 / 2018 No. 20. SC Biz News.

Leadership

Langston Construction Company is owner-operated. Both Principals came up through the company before they owned it.

Evan Sowell, Principal at Langston Construction Company

Evan Sowell

Principal

Joined Langston Construction Company in 2006 in estimating and project management, and became an owner through the company’s succession.

Jim Roberts, Principal at Langston Construction Company

Jim Roberts

Principal

Joined in 2005 and started in the field as a superintendent before moving into the office and becoming an owner.

What Clients Say

Ninety percent of our work is repeat business.

Selected feedback from project managers and facility owners who have hired Langston Construction Company more than once.

This was one of the most challenging projects I have had, involving both constructability and environmental challenges. I was extremely confident that Langston Construction Company would perform this work safely and at the highest standards possible. To say the least, Langston Construction Company exceeded expectations.

Project Manager

It has been my pleasure to work with Langston Construction Company these past two years. With the utmost sincerity, let me say Thank You for the insight provided to us throughout this process from bid to construction, quality of work performed, and the safety record Langston Construction Company has achieved on our projects.

Project Manager

Langston Construction Company provided a great team atmosphere throughout the project. Your project management team went out of its way to make us all successful.

Facility Operations Manager

Langston Construction Company has been smooth to work with and has provided excellent communication around scope changes. The issues are presented and include a recommended solution and cost. The documentation of weekly progress meetings and tracking of open action items are excellent.

Project Manager

Frequently Asked Questions

When was Langston Construction Company founded?

Langston Construction Company was founded in 1969 in Piedmont, Anderson County, South Carolina, by Julian Langston, originally building water and wastewater treatment work. The firm has operated continuously for more than five decades as an owner-operated general contractor that delivers the work directly, through an unbroken succession of owner-operators from a single South Carolina headquarters.

What does Langston Construction Company do?

Langston Construction Company is a general contractor that delivers the work directly, delivering capital construction across critical-infrastructure verticals including physical security, energy and power, data centers, water and wastewater, and transportation. The firm executes general contracting, EPC, design-build, construction management, and preconstruction services.

What states does Langston Construction Company operate in?

Langston Construction Company is licensed and active from headquarters in Piedmont, South Carolina. Core operating geography spans the Southeast and South-Central regions, with project delivery extending to the Pacific Northwest and Mountain West for utility, federal, and physical-security work.

What major awards has Langston Construction Company won?

Langston Construction Company was named 2026 AGC Construction Safety Excellence Award (CSEA) National Winner in the Utility Division, the highest US national safety recognition in the utility construction category. Prior recognition includes multi-year inclusion on the Inc. 5000 fastest-growing private companies list, Best Places to Work America, SC Roaring 20’s, and the 2021 Carolinas AGC Pinnacle Award for Best Utility Project Under $3M.

What industries does Langston Construction Company serve?

Langston Construction Company serves critical-infrastructure industries including physical security with NERC CIP-014 substation hardening; energy and power including substation construction, transmission, and generation; data centers including hyperscale and colocation; water and wastewater including treatment plants, pump stations, and security resilience; and transportation including airport, transit, and federal mission-critical facilities.

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