Aluminium Flush Casement Windows for Trade

Sleek, secure, and thermally advanced Prestige Flush Casement Windows for modern and heritage installations.

Our prestige flush case windows are designed to sit perfectly level with the outer frame, creating a smooth, streamlined finish, ideal for both contemporary homes and period-style properties.

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With multi-chamber thermal break technology and advanced weather sealing, our aluminium flush casement windows achieve U-values as low as 1.0 W/m²K and A+ energy ratings. Engineered for strength, security, and ease of installation, they offer a high-performance solution for installers working on both new builds and refurbishments.

Installer-Friendly Aluminium flush Casement Windows.

These Prestige aluminium flush casement windows are built with the trade in mind. With rigid square profiles, clip-in beading, and clear packer positions, installation is quick, accurate, and consistent — reducing time on site without compromising quality.

We also supply optional extras like frame extenders, cill protectors, and bespoke sizing to make installation even more efficient.

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Why Choose Our Prestige Flush Casement Windows

Fully Flush Aesthetic

Opening sash sits level with the outer frame for a clean, refined finish.

Slim Sightlines

Crisp aluminium detailing and sleek styling.

Thermal Technology

Multi-chamber thermal break delivers outstanding energy efficiency.

Double or Triple Glazing

Up to 44mm glazing with U-values as low as 1.0 W/m²K.

PAS 24 Security Compliance

Secure multi-point locking and optional laminated glass.

Part L Compliant

Fully meets the latest building regulation standards.

Two Sash Styles

Choose from Contemporary or Stepped sash designs.

Extensive Colour Range

12 standard colours, 3 Paragon metallic finishes, and dual-colour options.

Why Choose Nova Trade Frames?

With over 40 years supplying premium windows and doors to the trade, Nova is your trusted partner for quality aluminium systems. Our flush casement windows offer the perfect balance of modern styling, performance, and ease of use — backed by our expert support and fast lead times.

Made-to-measure for every project
Trade-only supplier
Fast nationwide delivery
Expert guidance and aftercare
Manufactured in the UK

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Apply Today for a Nova Trade Account.

At Nova Trade Frames we support our trade customers in a number of ways, always prioritising quality, price and customer satisfaction.

Expert advice & support

Fast delivery across the UK Mainland

Low trade prices and offers

UK manufactured in the EAST Midlands

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Frequently Asked Questions

Are your aluminium flush casement windows compliant with UK regulations?

Yes, our Prestige Flush Casement Windows meet the latest UK Building Regulations, including Part L. With advanced thermal break technology, they achieve excellent U-values and energy ratings.

What’s the difference between standard and flush casement windows?

Flush casement windows have a sash that sits level with the outer frame when closed, offering a cleaner, more minimalist appearance. This makes them popular for both contemporary and heritage-style projects.

Can I choose different sash styles for flush frames?

Yes, you can pair our flush frames with either Contemporary or Stepped sash profiles, giving you flexibility to match the window to the style of the property.

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Trusted by 100s of installers from around the UK

"Pleased to say after many years of using nova trade frames their service and quality has never changed, wouldn’t consider using any other pvc company, they have everything just right, price, quality and most importantly after sales service."

Rob James

Professional contractor

"Started purchasing from Nova for our frames and cannot be happier. Excellent customer service, top-quality products and quick delivery times."

Heatshield GB

"Recently purchased my windows from Nova - the service from start to finish was second to none and the product is the best quality out there. Would highly recommend"

Mica Plange

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