Colin’s Sash Windows has announced the findings of its latest design report, showing that heritage-inspired doors and steel-look windows are projected to be among the most influential trends shaping American homes in 2026.
The report, which compares design movements across both UK and U.S. markets, reveals heightened demand for black-framed glazing, Crittall-style internal doors, and window patterns rooted in traditional British architecture. Formerly synonymous with loft living in London and heritage houses in the UK, these looks are now being embraced stateside as homeowners pursue a blend of elegance and modern-day performance.
“We’ve seen a huge rise in interest for steel-look and heritage designs among American homeowners, particularly in urban areas where lofts, brownstones, and townhouses are being renovated,” said Colin Greenslade, Founder of Colin’s Sash Windows. “Our British heritage gives us a unique perspective on these styles, and we’re excited to share that design expertise with the U.S. market.”
The report identifies several design trends expected to shape U.S. renovations in 2026:
- Steel-look internal glazed doors creating openness in modern interiors.
- Black-framed windows offering bold architectural contrast.
- Traditional sash-style windows updated with energy-efficient glazing.
- Heritage aluminium external doors delivering slim sightlines with durability.
Known for craftsmanship and reliability in the UK and Ireland, Colin’s Sash Windows has expanded into the U.S. to meet growing demand for heritage-inspired glazing. American homeowners, architects, and interior designers now have access to a supplier that blends authentic British design heritage with the energy standards and performance modern U.S. projects demand.


