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  • Epwin PVC Casement Windows

    Versatile PVC casement windows combining modern performance with classic British window styling.

Epwin PVC Casement Windows

Our Epwin PVC casement windows offer a reliable and versatile solution for homes of every style. For customers looking for a more authentic heritage appearance, we offer timber alternative flush casement windows with mechanically jointed frames, deep bottom rails and realistic wood-grain finishes.


For more cost-effective installations, the system is also available in standard stormproof PVC casement designs with welded joints and classic white profiles. Both options deliver excellent energy efficiency, security and long-lasting performance.


Epwin Window Systems logo

Authentic Styling

Flush casement options feature deep bottom rails, mechanical joints and realistic woodgrain finishes, creating the look of traditional timber windows with none of the maintenance.

Energy Efficient & Secure

Multi-chamber PVC profiles combined with modern glazing deliver excellent insulation and PAS24-compatible security options for modern homes. 

Flexible Designs

Available in flush or stormproof styles, with sculptured or bevelled frames, multiple colours and glazing options to suit both period and contemporary homes.

Epwin Timber Alternative Flush Casement

Designed to replicate the proportions and detailing of traditional timber windows, the flush casement system sits perfectly flush within the outer frame, creating a clean heritage appearance.


Key details include:

  • Timber look mechanical joints

  • Deep bottom rail for traditional proportions

  • Authentic putty-line detailing

  • Optional heritage hardware such as monkey-tail handles

  • Wide range of woodgrain and heritage colour finishes


These windows are ideal for period homes, cottages and conservation-style properties.

Flush casement windows are designed to replicate traditional timber windows while delivering modern thermal efficiency and weather performance.



Epwin Stormproof PVC Windows

For projects where value and practicality are key, our standard PVC storm casement windows provide a durable and cost-effective option.


Features include:

  • Classic stormproof sash design

  • Fully welded PVC joints

  • Sculptured or bevelled profile options

  • Standard white or coloured finishes

  • Excellent thermal efficiency and security


This option is ideal for modern homes, rental properties and large replacement projects.

The Spectus casement system offers flexible configurations and strong multi-chamber profiles for improved performance and durability.

Epwin Flush Casement PVC Images

Flush casement PVC bay windows installed on a traditional white rendered home
White Epwin flush casement PVC windows with slim sightlines on a modern property
Close up detail of timber alternative flush casement PVC window  with timber look joints
White flush casement PVC window installed in red brick exterior wall
Multiple white flush casement PVC windows with Georgian bars on a modern extension
Heritage monkey tail handle on timber alternative flush casement PVC window

Epwin Stormproof PVC Images

White stormproof PVC bay window installation on a traditional brick house
Interior view of white stormproof PVC casement window opened for ventilation
Stormproof PVC casement windows installed in a modern conservatory style extension
Traditional cottage with white PVC stormproof casement windows and climbing plants
White PVC stormproof casement windows installed on a rendered house exterior
Stormproof PVC bay window installation on a brick home with white frames

Technical Specifications

  • Frame Material: Multi-chamber PVC-U profiles


  • Window Styles: Flush casement or stormproof casement


  • Profile Options: Sculptured or bevelled


  • Glazing: 24–44mm double or triple glazing options


  • Energy Rating: Up to A++ rated windows


  • U-Values: From approx. 1.2 W/m²K double glazed


  • Security: PAS24 compatible with multipoint locking


  • Colours: Wide range of foiled colours and woodgrain finishes


  • Hardware: Contemporary, traditional or standard options


  • Configurations: Top or side hung, fixed & dummy casement



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