house with multiple white framed windows

Our Flush Sash Windows

The defining characteristic of a flush sash window is its flat face – unlike overlapping designs, these windows create clean, uninterrupted lines. This subtle detail makes a significant difference to a building’s appearance.

Originally popular in pre-Victorian architecture, flush casements are now sought after for both period restorations and contemporary projects. Their simple elegance complements traditional homes while offering the energy efficiency modern life demands.

bay windows installed between red brick house

Benefits of Flush Sash Windows

Flush sash windows provide unique advantages that other styles cannot match:

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Architectural Authenticity

The flat design creates uncluttered views without protruding elements.

Clean Sight Lines

The precise flush fit minimises gaps where wind can penetrate.

Superior Draught Exclusion

Subtle sophistication that enhances rather than dominates façades.

Timber Options

Our windows are available in a choice of timber options, including Pine, Meranti, and Accoya. Each type is selected for its specific performance characteristics.

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Hardware Options

Hardware options include period-appropriate fittings manufactured in accordance with traditional designs, alongside contemporary alternatives for modern projects.

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Energy Efficiency

Our flush windows incorporate the latest in high quality double glazing and triple glazing technology without compromising historical appearance. Energy efficient design and precise engineering help prevent heat loss while reducing heating bills.

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cream small casement window installed in restroom
green framed windows installed in cottage

Classic Georgian Style

Flush casement windows feature a sash that closes into the frame, sitting perfectly level with the exterior face of the window frame. This contrasts with standard casements, where the sash protrudes outward.

The flush design creates a flat appearance that was typical of early wooden windows before the Victorian era introduced overlapping sashes. This subtle detail significantly impacts a building’s character and historical accuracy.

Whether you’re renovating a listed building or constructing a contemporary home, our specialists can guide you through selecting the perfect windows with appropriate glass options for your project.

FAQs

Here are answers to common questions about our flush casement windows. Please contact us for specific information about your project.

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sheerline window

We had to change all our windows and garden doors to replace the single glazed windows and doors we had. We live in a a very early Edwardian house and wanted to retain the original features, so we opted for wooden windows in Meranti. The result was fantastic! Peter is very profesional and a pleasure to work with. He also...
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Karolina

Bark

Very professional and on time, the product was exactly as per drawings. Thanks APC!

Peter Jones

Google

This company has done THE most amazing work, in replacing my seventeen 33year old timber sash windows in a conservation area. Double glazed, matching existing in all respects. Impressed by the professionism of the owner as well as the guys installing the frames.

George Papadopoulos RIBA

Google
traditional semi detached house with red brick extension, dark front doors, white bay windows and tiled porch roof

Contact Us About Your Project

Contact APC Bespoke today for expert advice and a free, no-obligation quote. Our simple process starts with understanding your requirements, whether you’re a homeowner or a trade professional.

We provide detailed specifications and clear pricing based on your exact needs. Our team serves London and the Home Counties, offering both supply and installation services. Call us on 0208 194 8011 or complete the contact form and we’ll respond promptly to help bring your vision to life.