— Service · 05 / 08

Edwardian
sash
windows.

The transitional Edwardian sash — typically six-over-two — pairs Georgian-style upper glazing with a Victorian-style large lower pane. Defining detail of London early-20th-century semis.

— Edwardian character

A transitional period
between two styles.

Edwardian builders kept the decorative upper sash from the Georgian tradition and married it to the wide lower light of the Victorian sash. The result is unmistakable.
  1. 01

    Six-over-two

    Three-by-two glazing in upper, single pane below.

  2. 02

    Margin lights

    Often a coloured stained-glass border in the upper sash.

  3. 03

    Lambs-tongue horns

    Distinctly more pronounced than late Victorian.

  4. 04

    Slimmer bars

    Edwardian glazing bars start to thin out — 18mm common.

  5. 05

    Bay windows

    Canted and square bays both common in Edwardian semis.

  6. 06

    Tile-hung gables

    Often paired with a sash window directly below the gable line.

— Six-over-two geometry

Two halves,
two characters.

The genius of the Edwardian sash is that the upper half hosts ornament and the lower half delivers daylight — the best of two centuries in one window.
  1. 01
    Upper sash

    Six panes, optional stained-glass margin.

  2. 02
    Lower sash

    Single pane, maximum light transmission.

  3. 03
    Horns

    Lambs-tongue, pronounced drop.

  4. 04
    Glazing bar

    18 — 22mm period profile.

  5. 05
    Cill

    Sapele drip cill, 18° fall.

— Edwardian FAQ

Common questions about
edwardian.

It is the most common, but four-over-one, six-over-one and three-over-three all appear in the period. We copy whatever you have.

Yes — we work with two London glass studios for both restoration and bespoke margin lights matched to existing.

1.4 W/m²K standard with our slim-line double glazing — same as Georgian and Victorian.

— 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