This triple Georgian casement window spans wide openings with three lights, each carrying a full grid of astragal bars for the classic multi-pane Georgian look. The flush-finished sashes keep the elevation flat and traditional, making it a natural replacement for wide period windows where a single or double casement would look undersized. Prices start from £499+VAT.

Three lights for wide openings

Where a wall opening is too wide for one or two casements, a triple layout keeps the proportions right: three equal lights with consistent pane sizes across the whole width. The side lights open for ventilation while the symmetry of the Georgian bar grid runs uninterrupted across all three, so the window reads as one coherent period piece rather than separate units.

Flush Georgian casements, built to measure

Each sash closes flush within the frame — the traditional construction used across our flush casement range — and every window is made to your exact opening. For smaller spans, the double flush casement offers matching styling. Choose engineered pine, meranti or oak, with glazing rated at a U-value of 1.4 W/m²K to meet Building Regulations.

• Three-light layout designed for wide openings and bay replacements.
• Full Georgian astragal bar grid across all lights for period symmetry.
• Flush finish — sashes close level with the frame, the traditional way.
• Opening side lights for ventilation across the room.
• Energy-saving glass with a U-value of 1.4 W/m²K, certified to Building Regulations.
• Warm Edge Spacer Technology to improve insulation and reduce condensation.
• Choice of engineered pine, meranti or oak timber.
• Finished in any RAL or Farrow & Ball colour, fully draught-sealed.

Frequently asked questions

What is a triple casement window?

A casement window made up of three lights side by side in one frame. It is the traditional solution for wide wall openings, keeping pane proportions consistent across the full width instead of stretching one or two oversized sashes.

Can Georgian glazing bars be used on casement windows?

Yes. Although the Georgian grid is best known from sash windows, the same astragal bar pattern works on casements, dividing each light into small panes. Here the grid runs across all three lights for a unified period appearance.

Which parts of the window open?

The side lights are hinged opening casements, giving ventilation at both ends of the window. Configurations can be adjusted to your needs — tell us your preference when requesting a quote.

How much does a triple Georgian casement cost?

This three-light Georgian flush casement starts from £499+VAT. Width, timber, glazing and finish determine the final price — request a quote and we will price your exact opening.