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High-Performance European Windows and Doors for Custom Residential Projects
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High-Performance European Windows and Doors for Custom Residential Projects

At EPOC, craft and performance converge. Our product lines in wood, aluminum, steel, and uPVC give architects, builders, and homeowners a complete toolkit to realize any design vision without compromise. Each EPOC line delivers exceptional thermal performance, precision engineering, and bespoke detailing on every project.

Product Lines

Aluminum

Elevate your project with all-aluminum window and door systems engineered for thermal performance, clean sightlines, and the demands of refined modern architecture.

Wood-clad 

Enrich any space with the warmth of natural timber inside and the durability of a precision-clad exterior, delivering beauty and performance in every climate.

All-wood 

Express the full character of natural timber with all-wood systems custom milled in oak, larch, and pine, with interior and exterior profiling for any architectural style.

uPVC

Enhance comfort and efficiency with uPVC systems built around multi-chamber profiles, precision sealing, and a maintenance-free exterior that performs decade after decade.

Also available in [Stël] steel, EPOC's premium product line for projects where refined detailing and maximum thermal performance are the specification.

Configurations

Tilt-turn in-swing window European high performance
Tilt-turn in swing windows
& push-out casements
Lift-slide door European aluminum wood clad
Lift-slide doors & windows
Curtain wall and large window assemblies
Large window configurations
& Curtain wall systems
Bi-fold accordion door system high performance residential
Bi-fold doors & windows
Custom wood flush sash entry doors
Custom flush panel &
bespoke entry doors
Pivot door custom European steel aluminum
Pivot doors

Project : [Clad+] High Rockies

Wood-clad tilt-turn windows and lift-slide doors specified and installed in a custom mountain residence in the High Rockies. [Clad+]88 triple pane in dark exterior finish with matching interior hardware throughout

European Engineering, American Projects

EPOC brings the precision of European window and door manufacturing to custom residential projects across the United States. We work directly with architects, builders, developers, and homeowners to specify the right system for every opening, because no two projects land in the same place. From profile and glass specification to hardware selection and installation coordination, each unit is custom fabricated to exact dimensions, with no substitutions and no surprises, from start to closeout.

Who We Work With

EPOC's clients include independent architects and large residential design firms, custom home builders and high-performance contractors, passive house consultants and energy-conscious developers. Our work frequently supports projects pursuing PHIUS and PHI certification, net zero targets, and high-performance envelope specifications where window and door performance is a critical variable. We are equally at home on a luxury mountain residence, a modern urban infill, or a carefully detailed historic preservation project.

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Where We Work

EPOC is based in Steamboat Springs, Colorado, with active projects across the Mountain West, Pacific Northwest, and Southeast United States. We regularly specify and install in Colorado, Wyoming, Montana, Idaho, Washington, Oregon, California, Wisconsin, Georgia, and beyond. Lead times, shipping logistics, and installation coordination are managed for projects anywhere in the continental United States.

Why European

European window and door manufacturing operates to a different standard. Multi-chamber profiles, thermally broken frames, triple air seals, and precision hardware systems are the baseline, not the upgrade. The EPOC manufacturing factories are multigenerational operations with decades of refinement behind every product. The result is a window that performs measurably better, installs more precisely, and lasts longer than anything manufactured domestically at a comparable price point.