Ultra slim, high performance aluminium windows
Our slimmest window range, perfect for contemporary and heritage projects. Designed to combine the latest technical innovations with peerless aesthetics. Available as beaded and beadless options.
Engineered Elegance
The ultra slim 59mm sightlines* of the innovative Classic window system maximises the light flooding homes, creating a refined architectural look. We’ve also designed out the misalignment of corners seen on lesser aluminium systems, using our patented construction method. Allowing each Classic window to be individually hand tuned to perfection.
Featuring Our Unique Thermlock® Technology
Clean, crisp lines on the outside hide away our innovative Thermlock® multi-chamber thermal design, helps keep properties well insulated against the worst of the UK weather. These insulating chambers act as a thermal break and work in conjunction with high performance glazing to create class leading thermal performance, far superior to traditional polyamide thermal breaks.
Inbuilt Security
All Sheerline windows carry PAS24:2016 enhanced security accreditation, so if you are looking for stylish aluminium windows with extra peace of mind as standard – then we have you covered. For added peace of mind choose our laminate glass upgrade – for Secured by Design accreditation – the official UK Police initiative ‘designing out crime’ through physical security.
Create Light, Airy Interiors
Our ultra slim aluminium windows are available in casement, French and fixed styles, with sightlines as slim as 36.5mm for picture windows, and 59mm for opening windows*. Classic lets light flood in, opening up interiors helping to create that important sense of space and tranquillity. *Beadless sashes, 60.5mm for beaded sashes
With a choice of traditional or contemporary styling
Our Classic system is an ideal replacement for traditional steel windows and doors, as well as ultra-modern, minimalist renovations and extensions. Available in 4 styles:
- Contemporary
- Contemporary Flush
- Stepped
- Stepped Flush
Authentic Heritage Options
Classic can also be used to create traditional ‘historically inspired’ windows and doors. With specifically designed decorative bars for a distinctive period aesthetic.
Bars can be positioned horizontally or vertically to achieve a variety of looks, either creating an authentic looking Georgian grid or divided horizontally to give a stylish 1920’s ‘Art Deco’ aesthetic.
Beaded System
Maximum Versatility
Our beaded option lets you supply frames and glazing separately. In versatile configurations of opening and fixed light combinations and picture windows.
Glazing Options
Option for 36mm triple glazing on contemporary styles and fixed frames. Also allows for the slimmest picture windows with ultra-thin 36.5mm sightlines.
Easy Fit Clip-in Bead
Easy fit clip-in bead removes the need for wedge gasketing and perfectly matches our Classic Heritage door range, with its period inspired lock box design.
Also available as a beadless option
Our original, revolutionary beadless window system for customers looking for extra security and unrivalled aesthetics.
The beadless version of Classic offers even more refined internal corners with run through mitres on internal joints for the perfect finish.
It’s beadless construction also eliminates a common area of attack by would-be intruders
Sightlines
Based on choice of outer frame
FIXED FRAME
WINDOWS
36.5mm
49mm
BEADLESS CASEMENT
& FRENCH
59mm
71.5mm
BEADED CASEMENT
& FRENCH
60.5mm
73mm
U-VALUES
1.5 U W/(m²K)
Double glazed
A WER
1.1 U W/(m²K)
Triple glazed*
A+ WER
*Only available in certain styles
Our Colour Range
Agate Grey
RAL 7018
Matt
Anthracite Grey
RAL 7016
Matt
Jet Black
RAL 9005
Matt
Chocolate Brown
RAL 8017
Matt
Cream
RAL 9001
Matt
Pure White
RAL 9010
Matt
Hipca Gloss White
RAL 9910
Gloss
Squirrel Grey
RAL 7000
Matt
Pastel Turquoise
RAL 6034
Matt
Silver
Metallic Effect
Mid Bronze
Metallic Effect
Black
Metallic Effect
Start Your Aluminium Project Today
Let’s discuss your requirements and create a tailored solution that fits your space perfectly.