Light,framedwithintent.
Slim-sightline windows, vanishing-threshold doors, and lift-and-slide systems for the world's most considered homes.
Three systems. Endless specification.
Engineered for the long view.
We don't sell windows — we specify facades. Every project begins with a thermal model and ends with a daily-supervised install.
Engineered, not assembled
Every system is specified to project — thermal modelling, structural calculation, and acoustic targets agreed before the first cut.
One studio, end to end
Survey, design, manufacture, install. No subcontracted handovers, no diluted accountability.
Heritage-grade craft
Welded corner joinery, hand-finished hardware, and PPG PVDF coatings warranted for 25 years against fade and chalk.
Quiet performance
Acoustic glazing to Rw 45 dB, triple seals on every opening leaf — designed for homes near roads, rails and runways.
Specified on residences from Hampstead to Hokkaido.
Studio archive.
A small selection from the past eighteen months.
From the people we work with.
"GreenKey understood our brief at a level of detail we hadn't encountered before. The result is a facade that frames every view exactly as we drew it."
"The installation was scheduled to the half-hour. Three days, two crews, twenty-eight openings — and not a single snag list item at handover."
"Quiet. That's the word everyone uses when they walk into the house."
Bring your facade into precise focus.
Send us a drawing, a brief, or a site address. We'll come back inside three working days with an honest specification and a fixed quote.