This timber flush casement window pairs two side-hung opening lights with a horizontal glazing bar across each, giving the balanced, cottage-style proportions found on traditional British homes. The sashes close flush within the frame for a flat, refined elevation. Made to measure in the UK, prices start from £599+VAT.

What “flush” means — and why it looks right

In a flush casement, the opening sash sits level with the face of the frame when closed, rather than overlapping it like a storm-proof casement. The result is a flatter, cleaner façade that matches how casement windows were traditionally made, which is why flush casements are the preferred style for period cottages, farmhouses and conservation settings. The horizontal glazing bar divides each light into two panes, adding character without crowding the glass.

Two opening lights, made to your sizes

Both casements are side-hung on quality hinges and can be specified to suit your opening — see the full range of timber flush casement windows for other layouts, including a single flush casement with cross bars for smaller openings. Choose engineered pine, meranti or oak, with glazing rated at a U-value of 1.4 W/m²K to meet Building Regulations.

• Two side-hung opening lights for generous ventilation.
• Flush finish — sashes close level with the frame for a traditional flat elevation.
• Horizontal glazing bar across each light for balanced cottage proportions.
• 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 with a 7-step painting process.
• Fully draught-sealed with a complete set of standard ironmongery.

Frequently asked questions

What is a flush casement window?

A casement window whose opening sash closes flush — level — with the outer frame, instead of lipping over it. This flat profile is the traditional British casement style and gives a neater, more period-correct appearance than modern storm-proof designs.

What does the horizontal glazing bar do?

The slim timber bar divides each light into an upper and lower pane, recreating the proportions of traditional cottage windows. It sits over a single sealed double-glazed unit, so you get the classic divided look with modern insulation.

Can I get this window in different sizes and configurations?

Yes — every window is made to measure. If your opening is narrower, our single flush casement may suit better; for wide spans consider a triple casement. We will advise on the best layout when you request a quote.

How much do timber flush casement windows cost?

This double flush casement with a horizontal glazing bar starts from £599+VAT. Size, timber, glazing and finish determine the final price — request a quote for your exact specification.