Featured Project
Reynaers Aluminium Windows in Beautiful Devon Boathouse
We supplied a series of Reynaers SL68 windows for this stunning boathouse in Devon. A unique setting, this one-of-a-kind new-build … Continued
Slimline Aluminium Windows Exeter & Devon
Explore our range of high-quality slimline casement windows. Fabricated and supplied across Devon and the South West at trade prices. Maximise your glass area and increase natural light, with a choice of products from leading brands including Reynaers, Cortizo, Origin and AluK. Contact us today to request a quote.
Our Affiliations
Slimline Aluminium Windows Devon
Our slimline aluminium windows offer exceptional aesthetics and equally impressive designs.
Specified for their minimalist and clean lines, while still offering excellent thermal performance and security ratings, our slimline casement windows don’t compromise.
Maximise your views and increase your natural light, while ensuring the house is safe and secure.
Superior Strength Aluminium
We can offer such attractive sightlines on our slimline aluminium windows due to the superior strength-to-weight ratio of aluminium.
The natural properties of aluminium allow us to manufacture double or triple-glazed windows with ultra-slim frames.
Technical Specifications
AluK 58BW ST
Reynaers SL 68
Origin OW-70
Cortizo Casement TB
AluK 58BW ST
The AluK 58BW ST is a minimalist, durable and secure slimline aluminium window. Designed to replace and complement existing steel windows, it is often specified to be used on buildings where steel windows have traditionally been installed.
Featuring square sections and slim sightlines on fixed lights of just 43mm, it offers traditional properties a modern edge.
Reynaers SL 68
The Reynaers SL68 is a slimline aluminium casement window that has been designed to meet the demands of UK households.
Its high-quality design is perfect for replacing older steel frames, while delivering a stylish and timeless aesthetic.
The SL68 is tried and tested to offer the highest levels of performance with industry-leading weather resistance.
Origin OW-70
The Origin OW-70 offers sightlines of just 65mm. This means less frame, and more natural light. Its sleek external flush finish gurantees to add a touch of class to any property style.
The OW-70 slimline aluminium window is available as a casement, bay or fixed window.
Cortizo Casement TB
The Cortizo Casement is a thermally broken window that can be side-hung or top-hung for outward openings.
Thermally efficient with u-Values from 1.0W/ m²K and PAS 24 certified, it is a high-performing, slimline aluminium window that can be specified for all property styles.
Key Features
Tech Specs
Size Limits
Configurations
Colours
Hardware
Key Features
Highlights
A modern alternative to steel for traditional homes
Suitable for conservation areas
Provides the slimline look of steel with the benefits of aluminium
Slim sightlines to match existing steel windows
Multiple configurations for any build
Multi point locking systems for superior safety
Polyamide thermal breaks for improved thermal efficiency
Green guide rated A
Made onsite in Exeter
Options
Frame Styles
Square, Putty Line, Stepped Edge
Frame Depth
58 or 70mm
Glazing
24 - 32mm
Glazing Bars
Yes
Leaded Glass
Yes
Dual Colour
Yes
Technical Specifications
Specifications
Performance
Value
U-value (Double Glazing)
1.4 W/m2K
U-value (Triple Glazing)
1.1 W/m2K
Window Energy Rating
A – B
Air Tightness
Class 4 (600 Pa)
Water Tightness
Class E1500 (1500 Pa)
Wind Resistance
Class E2400 (2400 Pa)
Security
PAS 24:2016
Q-Mark Certification
Yes
Downloads
Name
Type
Size
Size and Weight Limits
Specifications
Configuration
Limit
Top Hung - Max Size
1494mm (W) x 1394mm (H)
Top Hung - Min Size
444mm (W) x 374mm (H)
Side Hung - Max Size
794mm (W) x 1494mm (H)
Side Hung - Min Size
394mm (W) x 444mm (H)
Fixed Light - Max Weight
250kg
Downloads
Name
Type
Size
Configurations
The AluK 58BW ST offers a wide range of possibilities. With design styles which include square, stepped edge and putty line, helping to achieve design and planning permission requirements.
Plus configuration styles that include top hung, side hung, bottom hung, fixed light and multi-light options.
Fixed Light
Side Hung
Top Hung
French Casement
Window Over Fixed
Fan Light
Side Light
Top Hung Next to Side Light
Side Hung Next to Side Light
Coupled Window
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AluK Colour Options
Whether you are looking for a statement colour or a more subtle colour for your slimline aluminium windows, the AluK 58BW ST is available in the full RAL colour range. Giving you 150 colours to choose from, guaranteeing that you will find the one that suits.
Powder-coated to protect against the elements, as well as long-lasting colour.
Single colour allows for the same colour inside and out. Or select the dual colour option, allowing you to select an exterior colour which matches the style of the outside of the house, while choosing a different colour for the interior of the casement window to blend in with the internal colour scheme.
Please find some of our most popular slimline casement window colour options below.
For further inspiration, take a look at the AluK colour collection brochure.
RAL Colours
RAL 7032 - Pebble Grey
RAL 7031 - Blue Grey
RAL 7016 - Anthracite Grey
RAL 7015 - Slate Grey
RAL 7012 - Basalt Grey
RAL 5003 - Ocean Blue
AluK Hardware Options
The AluK 58BW ST includes hardware sympathetic to traditional steel window designs.
Optio 58BW ST Handle Satin me
Optio 58BW ST Handle White
Optio 58BW ST Handle Black
Key Features
Tech Specs
Size Limits
Configurations
Colours
Key Features
Highlights
Ultra slim frame
Concealed hinges and drainage
Particularly suited for residential properties
Ideal for both contemporary and traditional properties
Perfect replacement for steel or timber windows
Enhanced thermal performance
Window Energy Rating up to A++
Side security brackets for ultra secure windows
Made onsite in Exeter
Options
Marine Grade Finish
Yes
Dual Colour
Yes
Glass Corner
Yes
Glazing
Double or Triple
Trickle Vents
Yes
Technical Specifications
Specifications
Performance
Value
U-value (Double Glazing)
1.4 W/m2K
U-value (Triple Glazing)
1.1 W/m2K
Air Tightness
Class 4 (600 Pa)
Water Tightness
E1200 (1200 Pa)
Wind Load
Class C (s1/3000)
Security
PAS 24:2016
Acoustic Performance
47(-2; -7) dB
Sightline - Min. Frame Width
15 mm
Sightline - Min. Vent Width
50 mm
Size Limits
Options
Configuration
Limit
Top Hung - Max Size
1300mm (W) x 1470mm (H)
Side Hung - Max Size
738mm (W) x 1500mm (H)
Top Hung Vent Weight - Max
50kg
Side Hung Vent Weight - Max
50kg
Configurations
All of our slimline aluminium windows are manufactured to meet your exact requirements. Available in a range of configurations including:
- Outward opening
- Side Hung
- Top Hung
- Multi-Light
- Fixed Window
- Glass Corner
SL68
Double Casement Side Hung
Side Hung with Friction Stays
Ventilation Window
Top Hung
Side Hung
Multi Light Side Hung
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Reynaers Colour Options
We offer an array of varied colours for signature styles and classic looks. With such attractive options for slimline aluminium windows, you can create fully bespoke designs to suit the style of their property and to match their tastes.
Choose from one of our most popular colours, or from the full RAL colour range of over 150 RAL colours. In a choice of matt or gloss finish, metallic colours, textured metallic Coatex finishes, wood-grain finishes, and pre-anodised (recommended for marine locations) or anodised coating.
RAL Colours
RAL 7032 - Pebble Grey
RAL 7031 - Blue Grey
7016M - Anthracite Grey
7015M - Slate Grey
RAL 7012 - Basalt Grey
RAL 5003 - Ocean Blue
Key Features
Tech Specs
Size Limits
Configurations
Colours
Hardware
Key Features
Highlights
Elegant minimalist look with ultra slim sightlines
Unique inline window handle
Stainless steel multi-point lock
Additional locks for larger frames
Hinge guards with anti-slip and lock technology
Made in Britain
Options
Glazing
Double or Triple
Cill Options
95, 155, 180 or 225mm
Colour-Coded gaskets
Yes
Restrictor Hooks
Yes
Bead Options
Square or Chamfered
Dual Colour
Yes
Glazing Bars
Yes
Trickle Vents
Yes
Technical Specifications
Specifications
Performance
Value
U-value (Double Glazing)
1.4 W/m2K
U-value (Triple Glazing)
1.2 W/m2K
Air Tightness
Class 4
Water Tightness
Class 9A
Wind Load
Class A5
Security
PAS 24:2016
Secured by Design
Yes
Size and Weight Limits
Specifications
Configuration
Limit
Top Hung - Max Size
1374mm (W) x 1474mm (H)
Top Hung - Min Size
350mm (W) x 350mm (H)
Side Hung - Max Size
960mm (W) x 1400mm (H)
Side Hung - Min Size
350mm (W) x 350mm (H)
Dummy Sash - Max Size
1374mm (W) x 1474mm (H)
Dummy Sash - Min Size
350mm (W) x 350mm (H)
Fixed Frame - Max Area
4.8 m2
Fixed Frame - Min Size
300mm (W) x 300mm (H)
Configurations
The Origin OW-70 slimline window is available in a range of configurations, including:
- Casement Windows
- Bay Windows
- Fixed Light
- Dummy Sash
- Top Hung
- Side Hung
Left: Side Hung, Right: Top Hung over Dummy Sash, Outside View
Left: Top Hung over Dummy Sash, Right: Side Hung
Top Hung over Fixed Light
Fixed Light
Top Hung, Outside View
Side Hung
Left & Right: Side Hung
Left: Fixed Light, Right: Side Hung
Left & Right: Side Hung, Center: Fixed
Fixed Frame with Mullion
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Origin Colour Options
The Origin aluminium window range boasts a choice of over 150 RAL colours to choose from.
With the options for everything from chic Anthracite Grey to something more audacious like pastel pink, there is something for everyone.
150 RAL Colours
7016M - Anthracite Grey
7015M - Slate Grey
9010G - Hipca White
7021M - Black Grey
9005M - Jet Black
9010M - Hipca White
9007M - Dark Sliver Metallic
9910G/7016M - Dual Colour
Origin Window Hardware Options
We offer traditional inline handles in Chrome, Silver, Anthracite Grey and more. Cranked handles can be ordered in any RAL colour to match the slimline aluminium windows.
Key Features
Technical Specs
Size Limits
Configurations
Key Features
Highlights
U-Values from from 1.0 W/ m²K
PAS 24 Certified
70mm sightlines
Thermal break zone of 32mm
Options
Options
Value
Glazing
23-44mm
Profile Thickness
1.6mm
Polyamide strip length
32mm
Tech Specs
Specifications
Performance
Value
U-Value
From 0.9 (W/m2K)
Air Permeability
Class 4
Water Tightness
Class E1200
Wind Resistance
CE 2400
Security
PAS24
Maximum accoustic insulation
Rw = 45 dB
Downloads
Name
Type
Size
Size and Weight Limits
Specifications
Options
Value
Slim sash / Top hung
1,200mm (W) x 1,300mm (H)
Slim sash / Side hung
950mm (W) x 1,300mm (H)
Heavy duty sash / Side hung
750mm (W) x 1,750mm (H)
Heavy duty sash / Top hung
1,800mm (W) x 1,800mm (H)
Maximum slim sash weight
Side hung 35kg / Top hung 50kg
Maximum heavy duty sash weight
Side hung 42kg / Top hung 100kg
Downloads
Name
Type
Size
Configurations
The Cortizo Casement TB Window is available in side-hung or top-hung outward-opening configurations. It can be finished in several dual colour systems, colour powder coating, wood effect powder coating, anti-bacterial powder coating, or an anodised finish.
steel alternative windows
flush casement windows
Cortizo Casement Window Cross Section
Cortizo Casement Window Cross Section
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Why Exeter Trade Aluminium?
Quick Quote Turnaround
Competitive Trade Prices
Accurate Lead Times
Fast Track Options
Supplier Support
Versatile Configurations
Exeter Showroom
Manufactured Onsite
Expansive Delivery Areas
Full RAL Colours
See Our
Premium Ranges
Slimline Aluminium Window Prices Exeter & Devon
Request a supply only quote for slimline aluminium casement windows.
We supply slimline windows to the trade and homeowners in Exeter, Devon, Cornwall, Somerset, Dorset, Wiltshire and surrounding areas. Request a quote today.
Alternatively, visit our showroom to touch and experience the products we have on offer. With an expert on hand to answer any questions you have.
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Contact Us
Whether you have a question on slimline aluminium windows, or need some advice please get in touch, our team will be happy to help.