— Service · 04 / 08

Victorian
sash
windows.

The two-over-two Victorian sash — with sash horns, a drip cill and the largest single panes a wood frame could carry — is the most common period window in London. We make hundreds a year.

— The Victorian terrace

What makes a sash
Victorian.

When sheet glass became affordable in the 1840s, glazing bars vanished overnight. The Victorian sash is the result — bigger panes, decorative horns, a drip cill.
  1. 01

    Two-over-two

    Single vertical bar, large rectangular panes.

  2. 02

    Sash horns

    Decorative drop on the lower meeting rail — structural, not just ornament.

  3. 03

    Drip moulding

    Top rail throws water off the glass — a Victorian innovation.

  4. 04

    Margin lights

    Many late-Victorian sashes carry a coloured margin around the perimeter.

  5. 05

    Spiral or weight

    By 1880 spiral balances appear — we do both.

  6. 06

    Stained glass

    Common in the upper sash on bay windows. We restore or replicate.

— Two-over-two geometry

Two panes per sash,
generous light.

The Victorian two-over-two maximises light by reducing the glazing bar to a single central vertical — structurally only possible with thicker, stronger Victorian sheet glass.
  1. 01
    Pane ratio

    Wider than tall — 7:5 typical.

  2. 02
    Sash horns

    Lambs-tongue or scroll — we copy yours.

  3. 03
    Top rail

    Drip moulding, 18° fall.

  4. 04
    Margin

    Optional coloured perimeter glazing.

  5. 05
    Hardware

    Brass fitch & sash lift, six patinas.

— Victorian FAQ

Common questions about
victorian.

Horns are the decorative drops on the lower meeting rail. They were introduced in the Victorian period to reinforce the joint where the sash sits on the meeting rail — structural, not ornamental.

Yes — we work with two London glass studios for restoration and bespoke margin lights. Lead-came or copper-foil construction depending on the original.

Marginally — less joinery in the glazing bars. Most of the cost is in the sash box, the timber and the install, which are similar.

— Ready to start?

Free survey,
fixed quote.

Tell us about the property and we will come back within one working day with a window count, indicative price and the next available survey slot.

Workshop Unit 12, Park Royal,
London NW10 7XF
Service area All London boroughs
+ M25 corridor