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
Maximise the glass area, with a slimline casement window. Increasing the light which can enter the home and allowing more of the view to be enjoyed. With a variety of style options available our slimline casement windows are an excellent choice for any glazing project. Contact us today to request a supply only quote, or give us a call to discuss specifying slimline casement windows in your next project.
Our Affiliations
Slimline Aluminium Windows Devon
Exceptional aesthetics start with exceptional designs. That’s why we offer homeowners and tradespeople deluxe slimline aluminium windows. Chosen for their minimalist and clean lines, whilst still offering excellent thermal performance and security ratings. Maximising views and increasing the amount of natural light which can enter the property, whilst keeping your home safe and secure.
Considering aluminium’s ability to resist warping, rotting, or cracking, homeowners can achieve incredible thermal performance with unquestionable elegance. Colourfast and long lasting, slimline aluminium windows are an ideal solution for timber replacement or minimalist designs.
Superior Strength Aluminium
One of the reasons we can offer such attractive sightlines on slimline aluminium windows is the superior strength to weight ratio of aluminium. With the natural properties of this incredible material, we can manufacture double or even triple glazed windows with ultra slim frames.
Yet, these minimal frames don’t compromise energy efficiency or performance. We can ensure that homeowners improve the thermal efficiency of their windows, not to mention the potential to improve the efficiency of their homes overall.
Technical Specifications
AluK 58BW ST
Reynaers SL 68
Origin OW-70
Cortizo Casement TB
AluK 58BW ST
The minimal, durable and secure 58BW ST window from AluK is designed to replace and complement existing steel windows. Designed specifically to be used on buildings where steel windows have been traditionally installed. Featuring square sections and slim sightlines on fixed light’s of just 43 mm.
Reynaers SL 68
The SL 68 has been designed specifically to meet the needs of UK households. With high quality designs, these slimline casement windows are perfect for replacing older steel frames, delivering a stylish and timeless aesthetic. Tried and tested to ensure it offers the highest levels of performance and industry-leading weather resistance.
Origin OW-70
The OW-70 from Origin, is Origin’s slimmest window with sightlines of just 65mm wide. Meaning less frame and more natural light. With a sleek flush external finish the OW-70 will add a touch of class to any property. 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 window option 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 70 mm
Glazing
24 - 32 mm
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
1436w x 1336h mm
Top Hung - Min Size
386w x 336h mm
Side Hung - Max Size
736w x 1436h mm
Side Hung - Min Size
336w x 386h mm
Bottom Hung - Max Weight
45 kg (5 hinges)
Fixed Light - Max Weight
250 kg
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 a 150 colours to choose from, guaranteeing that you will find the one that suits.
Powder coated to provide protection 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, whilst 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
1200w x 1200h mm
Side Hung - Max Size
738w x 1300h mm
Top Hung Vent Weight - Max
50 kg
Side Hung Vent Weight - Max
40 kg
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, homeowners 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 below, or from the 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 225 mm
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
1200w x 1200h mm
Top Hung - Min Size
355w x 350h mm
Side Hung - Max Size
700w x 1300h mm
Side Hung - Min Size
350w x 350h mm
Dummy Sash - Max Size
1374w x 1474h mm
Dummy Sash - Min Size
350w x 350h mm
Fixed Frame - Max Area
4.8 m2
Fixed Frame - Min Size
300w x 300h mm
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 line boasts over 150 colours for homeowners to choose from. With the options for everything from chic Anthracite Grey to something more audacious like pastel pink, ensuring that every customer can find the colour they want for their slimline aluminium windows.
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 32 mm
Options
Options
Value
Glazing
23-44 mm
Profile Thickness
1.6 mm
Polyamide strip length
32 mm
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 35 Kg / Top hung 50 kg
Maximum heavy duty sash weight
Side hung 42 Kg / Top hung 100 kg
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.
Cortizo Casement Window
Cortizo Casement Window
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.