AluK 58BW TBT Windows

Our AluK 58BW TBT Windows are designed to be the perfect window upgrade for your customer. These aluminium windows are at home at both commercial and domestic projects, perfect for replacing old windows or for new build projects. The AluK 58BW TBT Window is manufactured to support both open-in and open-out projects. It can be internally or externally glazed, allowing these aluminium windows to accommodate low and high-rise building projects. As with our other aluminium windows, the AluK 58BW TBT Window comes in stock colours of white, black, anthracite grey, brown, white/black and white/anthracite grey as standard, with RAL colours available on longer lead times.

Thermally Efficient

The AluK 58BW TBT Window holds a Green Guide 'A' rating and boasts U-values as a 1.5 W/m2K (triple glazing).

Three Profile Types

You can order our AluK 58BW TBT Windows in three sash types; Ovolo, Chamfered & Square, fitting every project.

Suited to Other Designs

The design of the 58BW TBT Windows is made to match the standard 58BW Casement Window sightlines.

Fixing Straps

AluK 58BW TBT Windows are fitted with dedicating fixing straps. This allows for ease of installation on-site.

Accredited Build

The AluK 58BW TBT Window is accredited for its quality, tested to PAS24 & certified under the Secured by Design scheme.

Tailor Made

AluK 58BW TBT Windows are tailor made to your project. Just let us know the specifications to get the perfect window.

Colour Options

Custom RAL White Black Grey Brown

AluK 58BW TBT Window FAQ's

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

1 - Will This Window Secure My Home?

Yes, our AluK 58BW TBT Windows will help protect your property against modern burglary methods. These windows are tested to PAS24 and certified under the Secured by Design scheme. It also holds a Q-Mark certification, and fitted with a Euro Groove, allowing the window to accommodate standard locking hardware.

2 - Does it Come in Different Colours?

Yes, you can customise the AluK 58BW TBT Window to suit your project. These windows are available in single or dual polyester colour and powder coating, textured and anodised finishes. As standard, we offer these aluminium windows in black, white, anthracite grey, brown, black/white and anthracite grey/white.

3 - Is this Window Customisable?

Yes, it's not just the colour of our AluK 58BW TBT Windows that can be selected. These windows can be created to be side hung, fixed-light and multi-light designs. This means you can get the best aluminium windows for your property.

What are Aluminium Windows?

If you’re a homeowner wondering what the difference is between a uPVC and an aluminium window is, Emplas is here to help! Aluminium Windows are designed with an aluminium profile, offering far great strength and rigidity than uPVC. Previously deemed a window for only modern properties, this style is the perfect replacement for ageing steel or timber designs. 

Aluminium windows are quickly becoming the replacement window of choice in homes across the UK. Unlike uPVC, these windows can offer up to 40-years of quality use if properly maintained. The colour itself is applied using powder coating, so won’t easily fade. 

AluK 58BW TBT Windows Video

Please see the video below for a guide on how we manufacture our AluK 58BW TBT Windows.

AluK 58BW TBT Windows Brochure

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


Three Aesthetics


Polyamide Thermal Break


Tested to PAS24


Smoke Vent Certification


Single or Dual Colour Options


Secured by Design


Side Hung Option


Internally or Externally Glazed


Glazing 28mm


Range of Configurations


U-Values as low as 1.5 W/m2K



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