ALUMINIUM WINDOWS
Quality-made trade supply aluminium windows for residential property or commercial buildings, come with insulated aluminium profiles with a polyamide thermal break, a choice of RAL colours, double or triple glazing and stylish, locking window handles. Our windows come with several frames, vent and bead options, offering a choice of styling, for standard or new opening, bay or bow windows and corner designs. We can even crate shaped windows with gable or raked heads.
With flexible frame depths, our windows are suitable for the replacement of dated aluminium, PVCu, timber or metal windows, with minimum disruption to plaster lines and internal decoration. For new build openings, you benefit from slimline frames that are easy to fix, and in a choice of styles and opening options.
Trade Supply Aluminium Windows
Designed for residential or commercial property, a quality range of slim or classically styled aluminium windows.
Slim frame windows
Crafted premium windows with the latest flush casement design.
Every window made to order
Made to measure to your precise sizes, design, colour and window accessories.
New Build or Replacement
Suitable for replacement doors or new build openings, ready to fit and glaze.
Premium aluminium windows
Benefitting from the best in window design and quality, 23 DOORS offer casement or flush casement windows. Each comes expertly crafted to your precise sizes, colour, configuration and handle colour options. A selection of ancillary profiles is available with all our windows when you require extension pieces, cills, posts or poles.
Alunet windows, made for the trade
Our residential windows provide a premium solution for older properties, available in modern or classically styled frames and customisable in the steel look with applied bars. For light commercial property, aluminium windows meet the higher-usage of offices, schools or other types of public buildings.
Windows for any property type.
Our windows range’s clever design and profile options create standard or oversized windows, including picture windows, floor-to-ceiling glazing and individual designs. Each comes with a choice of mullion, transom, vent and heading options, creating exactly the right look for any property.
Secure and Energy Efficient
All our windows comprise polyamide thermal breaks within the aluminium profiles much like our bifolds and sliding door systems. Combined with double or triple-insulated glass units, they comfortably meet the requirements of current Building Regulations for insulation and ventilation when fitted with trickle vents. For security, multipoint espagnolette or shoot bold locking with lockable window handles comes as standard.
Key Features
- Slim or standard sightlines.
- Easy-clean or egress hinges.
- Excellent customisation options.
Choose your from a range of window styles.
Casement Windows
The familiar opening outward design is available as a top hung or side hung option; with dummy sashes to fixed lights allowing for the system to be fully internally glazed. A profile depth of 73mm allows us to seamlessly couple these windows to our bifold, French door and single door systems – enhancing the range.
- Egress and easy-clean hinges
- Available with dummy sashes
- For traditional or modern property
Flush Casement Windows
Flush casement windows are designed to close in line with the outer frame, creating a flat, flush appearance from the outside. This design offers a clean, minimalist look that enhances your home’s aesthetics. Available in a range of styles, matching sightlines create a contemporary look for the home.
- Seamless flush casement
- Virtually any size or design
- Choice of cills, extensions and add-ons
Product Colours
We supply our windows in black, white and anthracite grey as standard, but we can offer any bespoke colour option on request.
Black
White
Anthracite Grey
RAL Colours
Reliable trade supply service
23 DOORS are specialist trade manufacturers providing quality-made and stylish windows for the trade. Desirable aesthetics, safety, security, functionality and energy efficiency make modern aluminium windows an excellent and long-lasting solution for homes and other buildings, that are also low maintenance. Our windows come in standard colours at fast lead times and great trade prices. All are supplied fully fabricated, ready to glaze or factory-glazed, depending on the window type. Beads, cills, and add-on extension pieces are provided cut to size.
Bespoke aluminium windows
Our standard colour range offers the fastest possible lead times in Black RAL 9005 matt, White RAL 9010 matt, Grey RAL 7016 matt. Or we can create windows in a dual colour finish or other standard RAL colours to order. Customise your windows with a choice of frame profiles, window handle styles and colours, optional restrictor stays, easy-clean, or egress hinges. We also provide a choice of window cills, meeting the required opening.
The benefits of modern aluminium
Slimmer than PVCu or timber, with less thermal expansion and optimum reliability. Aluminium windows are trusted for their strength, smooth operation, virtually unlimited colour choice and impressive design. The insulated profiles work with high-specification safety glass creating energy-efficient windows and helping save money on energy bills.
Flexible window sizes.
Fixed windows can create panoramic picture or floor-to-ceiling windows, limited usually by the size of the glass units. Opening window sizes are approximately 1200mm wide or 1500mm high, depending on the system for top hung windows. Maximum sizes for side hung windows are approximately 700mm wide or 1200mm high.
Frequently Asked Questions
Here we answer popular questions about our windows. You can get in touch for more information and help to get the best window types and styles for your particular project.