AluK 58BW Flush Casement Windows

Our range of AluK 58BW Flush Casement Windows offers the perfect replacement for old timber or steel window designs. This aluminium window is perfect for contemporary, new builds and refurbishment projects. The 58BW Flush Casement Window offers slimmer sightlines, with the 45mm ultra-slim sash suiting a range of properties. These windows are designed for faster fabrication. You can offer your customer these windows in white, black, brown, anthracite grey, white/black and white/anthracite grey.

Quality Thermal Performance

Unlike the wood designs these seek to replace, the AluK 58BW Flush Casement Windows can achieve U-values of 1.5 W/m2K.

Protection Against the Elements

The AluK 58BW Flush Casement Windows has achieved a Class 4 for Air Permeability and Class 9A for Water Tightness.

Accredited Quality Windows

Our AluK 58BW Flush Casement Windows are tested to PAS24 standards and certified under the Secured by Design scheme.

Slimmer Sightlines

The AluK 58BW Flush Casement Windows offer ultra slim sightlines of 45mm, suiting a range of property styles.

Single or Dual Colours

Your customer can choose from a range of single and dual colours, with white, anthracite grey, & black on stock.

Configuration Options

You can offer several configuration options with the 58BW, with French Casement, Top Hung & Side-Hung styles.

Colour Options

Custom RAL White Grey Black Brown

AluK 58BW Flush Casement Window FAQ's

Here are some answers to the frequently asked questions we receive regarding our AluK 58BW Flush Casement Windows.

1 - Will Draughts Affect My Property?

No, the AluK 58BW Flush Casement Window boasts a great weatherproofing performance. It is built with a double rebate and friction stays on side-hung windows, offering protection against bad weather conditions.

2 - Does it Come in Different Colours?

Yes, the AluK 58BW Flush Casement Window comes in several different colour options, with black, anthracite grey, brown, white and dual options all available.

3 - Is this Window Secure?

Yes, the AluK 58BW Flush Casement Window has been tested to PAS24 and certified Secured by Design.

What is an Aluminium Flush Casement Window?

If you’re a homeowner and you’re wondering what an aluminium flush casement window is, the Emplas team has you covered! Aluminium flush casement windows are different to standard aluminium windows. These windows take their inspiration from traditional timber joinery, sitting flush within the frame. This not only offers great sightlines but gives the window a clean look. 

Aluminium flush casement windows are perfect for older homes that need timber or steel windows replaced. The homeowner can enjoy the timber look but won’t be faced with the same high maintenance problems that timber provides. Instead if cared for correctly, these windows can offer many years of quality use. 

AluK 58BW Flush Casement Windows Video

Please see the video below for a guide on how we manufacture our AluK 58BW Flush Casement Windows along with its features and benefits.

AluK 58BW Flush Casement Windows Brochure

Want to find out more about the 58BW Flush Casement system? Why not view this brochure! By becoming an Emplas approved installer, you'll access our brochures and other resources.


Slimmer Sightlines


PAS24 Tested


Several Opening Configurations


Colour Options


U-Values of 1.5 W/m2K


Q-Mark Certified


Weatherproof Design


Double Rebate & Friction Stays


Secured by Design


28mm Glazing Option


Designed for Faster Manufacturing


Multi-point Locking

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