Our product series

Stil Stil Stil Read more
Haga Haga Haga Read more
Epok Epok Epok Read more
Royal Royal Royal Read more

The LEIAB composite window system...

...advanced Swedish design


LEIAB is situated in Mariannelund, Sweden, and is one of the market's leading bespoke manufacturers of inward opening windows in timber clad aluminium.

The direct advantages of the Leiab Inward Opening Systems are:

  • Meets Document M – low level handle heights.
  • Trickle ventilation via the Parallel opening ironmongery allowing ventilation and high security whilst the window is in the open position.
  • SBD - Tested to PAS 24:2022.
  • Leiab is 3rd party audited.
  • The Leiab system is fully serviceable internally without requiring external lifts, hoist or cherry-picker access.
  • Leiab offers a pure composite system that does not require toxic timber impregnation.
  • The internal face is timber with a service life of 70 years.
  • Leiab offer High Performance Acoustic Reduction – up to 69 dB.
  • The Leiab profile system offers several profiles.

Each year, LEIAB manufacture more than 50 000 products - side hung windows, tilt/turn windows, fixed windows, sliding doors and French doors are all made in our factory in Mariannelund, Sweden. We are a company that stay true to our word and always offer generous warranties on all of our products. Numerous customers have already chosen LEIAB windows and doors and you may find our products in more than 10 000 properties in various locations, including more than 200 properties in the UK. In the section “Inspiration” you can view some 500 of these in a slide show – a small selection sure to inspire you. For properties near you, please see the map in the section "References" where you can browse through reference photos from more than 2500 different properties in various parts of the world.

We offer you a choice of four window models where you can combine the frame and sash to create 16 different exteriors, and three interiors. All to ensure that you find the right style for your property. All products are custom made to your specifications, down to the last millimeter. This allows the fitting to be both faster and also much more convenient. The most exposed parts of the window, the frame and outer sash, are made out of strong aluminium fitted with weep holes. This prevents the window from rotting, and provides you with a product with a superior life span. The interior is made from timber with a high quality decorative finish.

Please see the window video below for more information on our products, and to see all of the benefits they can provide you with.

LEIAB presentation 2024

LEIAB Factory Tour

A brief tour around our factory in Mariannelund, Sweden

LEIAB window video

A short description of the LEIAB window and its advantages.