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slim-framed aluminium window


Our aluminium windows are the perfect alternative to the traditional steel-framed windows. Supplied and installed by the Prestige Aluminium Bi-Folds team in Bootle, Liverpool.

Bi-Fold Doors: Welcome

Enter the SL68 slim-frame aluminium window

Reynaers’ Slimline 68 window system is an outward-opening window that boasts ultra-slim profiles.

This window maximises the glass area to let in lots of natural daylight and is perfectly adapted to any residential property. The slim frames and clean lines lend themselves to homes both contemporary and traditional! In fact, the design of the window mimics the sightlines of the original steel-framed windows, which makes them a highly sought-after alternative. 

The 68mm frame depth makes it perfect as a replacement window as it usually fits within the existing plaster line. SlimLine 68 vents can be glazed from the inside as well as the outside, and are available on a standard and a HI insulation level.

A close-up of the SL68 window
Bi-Fold Doors: About
Bi-Fold Doors: Services


  • Huge range of design options

  • Ultra slim frame

  • Double-and triple-glazed options

  • Easy clean egress hinge option

  • Strong and durable

  • Low maintenance

  • Secured by Design accreditation

  • Window Energy Rating up to A++

  • U-value as low as 1.1W/m2K

Style Options

The SL68 comes with practically unlimited options when it comes to its design and size, as well as the colour of the frame and handle. Why not ask for a brochure when you call, or pop down to the showroom in Bootle to chat to us in person?

Bi-Fold Doors: Image

A recent job in Ormskirk

We recently carried out home improvements to this property in Ormskirk.

We think you'll agree that the CF68 Bi-folds and SL68 Windows (regular and shaped) look absolutely stunning!

Contact Prestige Aluminium Bi-Folds to view our steel-look aluminium windows at our purpose-built showroom.

Bi-Fold Doors: Contact
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