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ACS is dedicated to servicing and delivering the utmost value and quality to our customers. We encourage diverse perspectives, celebrating our differences, foster belonging, champion fairness, inclusion and equity.

We value military service and know your skills and experience will help us succeed in meeting our customers expectations. 

Electrical

Appellation Construction Services has expertise in constructing, maintaining and improving electrical systems in many industries including Oil and Gas, Industrial, Healthcare, Education and Commercial.  

Civil

Appellation Construction Services has extensive experience in site civil construction.  We are experienced in pad construction, entrance road construction, E&S controls, PCSM construction and concrete foundation installation

Mechanical

Appellation Construction Services specializes in constructing, maintaining & improving natural gas and industrial piping systems.

Painting & Coating

Appellation Construction Services has a full service shop Located in Williamsport at our 14+ acre facility. Our painting and coating services are also field/site capable.  

Power & Industrial

Appellation Construction Services is a full-service contractor offering new construction, repairs, maintenance, modification and outages to power generation and industrial facilities. We draw on our experience to build, operate, and maintain plants that run safely, reliably, and cost-effectively.

Safety

At Appellation Construction Services, employee safety is more than a priority, it is our core value! See our approach to the Health and Safety including recent awards.

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