EPC Contractor
Langston Construction Company delivers EPC-style, single-source projects. One accountable team for engineering coordination, procurement, and construction, so the owner signs one contract and holds one point of accountability from notice to proceed through startup.
What Langston delivers as your EPC contractor
Engineering, procurement, and construction under one accountable team. We build the civil, structural, and physical-security scope and coordinate the engineer and the equipment procurement, so nothing falls between separate contracts.
Single EPC contract
One contract covers engineering, procurement, and construction. The owner gets a single point of accountability for cost, schedule, and performance.
Engineering partner coordination
We bring the engineer onto the team and coordinate design with the build, so constructability is engineered in from the start.
Procurement and long-lead management
We manage procurement and long-lead equipment against the construction schedule, so materials arrive when the field needs them.
Site civil and foundations
Mass earthwork, grading, drainage, and cast-in-place foundations to AASHTO, SCDOT, and ACI 318, delivered by our own crews.
Structural and physical security
Structural steel, concrete structures, and the perimeter security that hardens critical-infrastructure and utility sites.
Fixed-price certainty
Our preconstruction team commits a fixed price at notice to proceed, backed by the crews who build the work.
Why owners choose Langston for EPC
One construction discipline, delivered five ways. Owners route EPC-style work to Langston because the crews behind the fixed price have built a continuous project record since 1969, backed by an AGC CSEA 1st Place Utility Division award for 2026 and delivery.
Representative project record
A sample of Langston's executed construction across the verticals we deliver single-source.
Fort Campbell Microgrid Plant
Site and civil construction for a natural-gas microgrid generation plant at Fort Campbell.
Lake Sequoya Water Intake and Pump Station
A raw-water intake and pump station for Lake Sequoya, from site civil through structures.
Industrial Pre-Treatment Wastewater Plant
An industrial pre-treatment wastewater plant in Pendleton, SC.
Frequently asked questions
What is an EPC contract?
EPC stands for engineering, procurement, and construction. One contractor takes single-source responsibility for all three, so the owner signs one contract for a turnkey project.
What is the difference between EPC and design-build?
Both are single-source. EPC usually carries procurement of major equipment and a fixed price at notice to proceed, and is common on energy and industrial projects. Design-build centers on integrated design and construction.
Does Langston do the engineering on EPC projects?
No. Langston holds the construction and brings an engineering partner. We coordinate the engineer and the equipment procurement, and we build the civil, structural, and security scope with our own crews.
Which industries does Langston serve under EPC?
Energy and power, water and wastewater, data centers, transportation, and physical security. Each has an engineering partner matched to the vertical.
How do I start an EPC project with Langston?
Reach out with your project scope, site, and schedule. Our preconstruction team will scope the delivery model and the engineering partnership that fit the work.
Have an EPC project?
Talk to the Langston team about single-source engineering, procurement, and construction for your next project.