Windows and doors, made in London

Architecture begins at the opening

Bespoke aluminium and PVC windows and doors, surveyed, drawn, and built to the millimetre. Thermally broken, triple glazed, and quiet enough to forget.

Black aluminium window frames set into corrugated silver cladding, integrated roller shutters closed

Every opening is a decision about light.

Most windows are ordered from a catalogue and trimmed to fit. We work the other way: the opening is surveyed on site, drawn in full, and the unit is built for it.

Frames are thermally broken with a polyamide bridge and divided into chambers. Glass is argon-filled and double or triple glazed, and every handle and hinge is cycle-tested before it leaves the bench. The result holds heat in winter, keeps the street out at night, and sits plumb with the wall.

What we make

Everything is built to order in our Clerkenwell workshop. Nothing is cut down from stock, and the team that measures your opening is the team that fits it.

Windows

Fixed, casement, tilt-and-turn, and lift-slide, in PVC or thermally broken aluminium. Double or triple glazed, with whole-window U-values from 0.8 W/m²K and acoustic ratings to 42 dB Rw.

Doors

Entrance, patio, and bi-fold. Multi-point locking, 15 mm aluminium thresholds, and concealed hinges as standard. Certified to PAS 24 for security.

Specification

Site surveys, U-value and acoustic calculations, and shop drawings for architects and builders. We price from the drawings, not from an estimate.

Grid of aluminium-framed windows across a pale precast concrete facade
Aluminium-framed windows in a precast concrete facade, Islington. 70 mm sightline.
A good window is measured by what it takes away: the cold, the traffic, the line between inside and out.
Mara Voss, founder
Black aluminium window frame and oak reveal, with a sheer curtain diffusing daylight

The A70 lift-slide

Our slimmest frame: a 70 mm face, thermally broken and glazed up to 48 mm, so the sightline stays thin without surrendering the weather performance. It is the profile we specify when the wall is mostly glass.

  • Profile depth 70 mm
  • Thermal break Polyamide PA66
  • Glazing capacity 28–48 mm
  • Glass U-value 0.5 W/m²K
  • Whole-window Uw 0.9 W/m²K
  • Acoustic rating 42 dB Rw
  • Weather rating Class E900
  • Hardware 20,000-cycle tested
  • Finish Powder coat or anodised

Tell us about the opening.

Send a drawing, a rough measurement, or the room dimensions. A surveyor replies within one working day with a fixed quote, the U-values, and a lead time.

Request a quote

Email

hello@voidstudio.co.uk

Telephone

+44 20 7100 4220

Studio

14 Clerkenwell Road
London EC1M 5PQ