Aluminium, British-supplied
AluK
Best for: Contemporary homes, short lead times
Typical price ranges
AluK · Contemporary tier
Casement window
approx. 1.2 × 1.2 m
£1,050–£1,900
Tilt-and-turn window
approx. 1.2 × 1.2 m
£1,200–£2,100
Bifold doors, 3 m opening
3 m wide opening
£4,500–£7,500
Sliding patio doors, 3 m
3 m wide opening
£5,000–£8,500
A survey confirms the final figure.
Why we chose it
Why we fit AluK
- 01
Slim contemporary sightlines in any RAL colour or dual colour
- 02
British-supplied with short lead times
- 03
A complete range of windows, bifolds, sliders and heritage doors
Systems we fit
AluK products we install
- 58BW windows
- Bifolds
- Sliders
- Heritage doors
Contemporary tier
SMART or AluK aluminium
Slim aluminium, any RAL colour, dual colour
Strong, slim sightlines, heritage options
Compare all four tiersSee AluK priced for your home
The quote builder opens with AluK preselected. A survey confirms the final figure.
Price this brandWhere we use it
Products available in AluK
Aluminium windows and doors
Slim, strong aluminium from SMART, AluK, Schüco and Cortizo in any RAL colour.
Casement windows
The classic side- or top-hung window, in uPVC or slim aluminium.
Bifold doors
Fold the whole wall back — aluminium bifolds from 3 to 6 metres.
Sliding doors
Patio and slimline sliding doors with big glass and minimal frames.
Entrance doors
Composite, aluminium and pivot front doors, smart-lock ready.
French doors
Pairs of opening doors in uPVC or aluminium.
Questions
AluK: your questions answered
What does LINX install from AluK?
We install 58BW windows, bifolds, sliders and heritage doors. Best for: contemporary homes, short lead times.
How much does AluK cost?
Casement window: £1,050–£1,900; Tilt-and-turn window: £1,200–£2,100; Bifold doors, 3 m opening: £4,500–£7,500; Sliding patio doors, 3 m: £5,000–£8,500. Indicative, supplied and installed in London and the South East, including VAT; prices updated 11 October 2026. A survey confirms the final figure.
Which price tier is AluK in?
AluK is in our Contemporary tier (SMART or AluK aluminium) — slim aluminium, any RAL colour, dual colour. Strong, slim sightlines, heritage options. It typically costs 1.6–1.9 times the uPVC price.
How long does a AluK installation take?
Typically 6–8 weeks from survey, agreed with you up front. One named project manager runs the job and our own fitters install it.
Begin your project
Price AluK in two minutes
See a live price range for your sizes and options, then book a survey in the same visit.