WHO WE ARE
Appellation Construction Services, (ACS), is a union contractor providing fabrication, electrical & instrumentation for diversified infrastructure owners and operators.
OUR SERVICES
We offer top-tier metal fabrication, coating, hydrotesting, instrumentation, and electrical services, delivering quality, safety utilizing best in class practices.
Modular Skids
ACS offers fully integrated modular fabrication & support services to efficiently and affordably address your project and packaged equipment requirements.
Pressure vessels
Discover the exceptional quality and reliability of our pressure vessel fabrication services, expertly designed for industrial applications.
Bespoke Solutions
Discover advantages of custom fabrication from ACS by choosing local fabrication services, you benefit from high-quality craftsmanship tailored to your needs.
Civil
ACS is a leader in site civil construction from clearing to post-construction stormwater management. We can turn raw land into a manicured site in record time.
Mechanical
ACS specializes in constructing, maintaining & improving industrial piping systems & has built a reputation for completing complex mechanical piping projects.
Painting & Coating
ACS has a full service shop Located in Williamsport at our 14+ acre facility, and a team of experienced & skillful commercial / industrial abrasive blasters and coaters.
Instrumentation & Electrical
ACS delivers professional instrumentation and control installation that improves communications, economizes operations, and secures controls for capital projects
Electrical Construction
ACS excels in new construction, upgrades, expansions, and retrofits. From site access control to start-up assistance, we deliver solutions for all project needs.
Maintenance & Modification
Together with our Mechanical & Fabrication offerings, ACS provides a cost-effective solution for all of your maintenance, modification and upgrade needs
INDUSTRIES
ACS, initially specializing in oil and gas piping, has now expanded its expertise to become a leading provider of piping solutions for multiple sectors.
FEATURED PROJECTS
Our project success is driven by our commitment to providing outstanding customer service and support, ensuring every facet of the project excels.
Bergen Dairy Farm RNG Project
Odessa, NY, USA
Energy Infrastructure %%•%% Power Generation
Electrical %%•%% Fabrication %%•%% Construction
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Bethlehem LNG Project
Bethlehem, PA, USA
Energy Infrastructure
Electrical %%•%% Fabrication %%•%% Construction
The Forum Auditorium
Harrisburg, PA, USA
Government and Commercial
Electrical
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