About Weiland Sliding Doors & Windows
Weiland Sliding Doors & Windows is an ultra-premium manufacturer of large-format aluminum sliding and folding door systems positioned at the apex of the luxury residential and hospitality fenestration market. Based in Gilroy, California, Weiland produces lift-and-slide and folding door systems of exceptional size and engineering precision, targeting architects and clients for whom standard specifications are insufficient and performance, detail quality, and scale are the primary drivers.
Weiland's product catalog centers on aluminum lift-and-slide doors capable of panel sizes and weights that exceed the capacity of most competing systems, alongside aluminum folding (bifold) door configurations and complementary fixed and window systems. The brand is widely recognized in the luxury residential design community — particularly in California, the Mountain West, and high-value coastal markets — and maintains relationships with leading residential architects and interior designers who specify Weiland for projects where the door or window system is an architectural statement.
Weiland is now part of ASSA ABLOY, the global access solutions group, which has expanded the brand's international reach and hardware ecosystem while maintaining its specialty manufacturing identity. For specifiers, Weiland is most relevant when a project requires the largest possible aluminum sliding or folding openings with ultra-slim profiles, premium finishes, and engineering support for non-standard structural and sill conditions.
Company Snapshot
Product Lines
Lift-and-Slide Door Systems
Ultra-large-format aluminum lift-and-slide systems for projects requiring maximum panel size, minimal sightlines, and exceptional operational smoothness.
- Very large panel sizes per system configuration
- Thermally broken aluminum framing
- Minimal frame profiles
- Custom powder coat and anodized finishes
Folding Door Systems
Large-format aluminum bifold systems for projects requiring the full opening to clear completely, leaving an unobstructed connection between interior and exterior.
- Multi-panel folding configurations
- Large panel sizes
- Outswing and inswing options
- Premium hardware and threshold conditions
Fixed and Window Wall Systems
Complementary fixed glass and window wall systems designed to coordinate with Weiland sliding and folding door lines for unified large-opening elevations.
- Minimal frame profiles matching door systems
- Large fixed panel sizes
- Thermally broken options
Common Applications
Ultra-Luxury Custom Residential
The highest tier of custom residential construction where door and window systems are architectural features specified by leading residential architects.
Luxury Hospitality
Five-star hotels, resorts, and private clubs where oversized sliding openings between suites, restaurants, and outdoor spaces are part of the design program.
High-Value Coastal and Mountain Residential
Premium coastal California, Hawaii, and mountain resort markets where Weiland has strong architectural specification penetration.
What To Know
Maximum panel size capability
Weiland's lift-and-slide engineering enables panel sizes that exceed competing systems, making it the reference product for projects where scale is the primary requirement.
Ultra-slim aluminum profiles
Frame geometry is optimized to minimize visible metal and maximize glass area, a consistent priority in the luxury contemporary residential market.
Early structural coordination required
Panels of this size and weight impose significant header, sill, and structural requirements that must be planned from the earliest stages of design.
Editorial profile based on Weiland Sliding Doors & Windows public product and company materials; last reviewed April 30, 2026.