Reynaers SL68 Steel Alternative Window

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

AluK Slimline Aluminium Casement Windows
Reynaers Aluminium Logo
Cortizo logo
Slimline Aluminium Windows Exeter

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.

Reynaers SL68 Slimline Aluminium Window

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.

Aluk Logo

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.

Origin Doors and Windows.

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.

Cortizo Logo.
Cortizo Casement TB Window Sample.

Key Features

Tech Specs

Size Limits

Configurations

Colours

Hardware

AluK Steel Alternative Window

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

AluK Steel Alternative Window

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


AluK Aluminium Window and Door Systems

pdf

12.06 MB

Download


AluK 58BW ST HI Data Sheet

pdf

2.00 MB

Download


AluK 58BW ST Data Sheet

pdf

442.78 KB

Download


AluK Steel Alternative Window

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


AluK 58BW ST HI Data Sheet

pdf

2.00 MB

Download


AluK 58BW ST Data Sheet

pdf

442.78 KB

Download


AluK Steel Alternative Window

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 Steel Alternative Window

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 7032 - Pebble Grey

RAL 7031 - Blue Grey

RAL 7031 - Blue Grey

RAL 7016 - Anthracite Grey

RAL 7016 - Anthracite Grey

RAL 7015 - Slate Grey

RAL 7015 - Slate Grey

RAL 7012 - Basalt Grey

RAL 7012 - Basalt Grey

RAL 5003 - Ocean Blue

RAL 5003 - Ocean Blue

AluK Steel Alternative Window

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

Steel Alternative Windows

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

Steel Alternative Windows

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

Downloads

Name

Type

Size


Reynaers SL68 Brochure

pdf

11.04 MB

Download


Steel Alternative Windows

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

Steel Alternative Windows

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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Steel Alternative Windows

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 7032 - Pebble Grey

RAL 7031 - Blue Grey

RAL 7031 - Blue Grey

7016M - Anthracite Grey

7015M - Slate Grey

RAL 7012 - Basalt Grey

RAL 7012 - Basalt Grey

RAL 5003 - Ocean Blue

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

Downloads

Name

Type

Size


Origin - The Window Collection Brochure

pdf

6.83 MB

Download


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)

Downloads

Name

Type

Size


Origin - The Window Collection Brochure

pdf

6.83 MB

Download


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

steel alternative windows

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

steel alternative windows

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


Cortizo Casement TB Brochure

pdf

1.33 MB

Download


Cortizo Casement TB Data Sheet

pdf

197.35 KB

Download


steel alternative windows

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


Cortizo Casement TB Data Sheet

pdf

197.35 KB

Download


Cortizo Casement TB Brochure

pdf

1.33 MB

Download


steel alternative windows

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

steel alternative windows

steel alternative windows

flush casement windows

Cortizo Casement Window TB

Cortizo Casement Window Cross Section

Cortizo Casement Window TB

Cortizo Casement Window Cross Section

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Accurate Lead Times

Fast Track Options

Supplier Support

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Exeter Showroom

Manufactured Onsite

Expansive Delivery Areas

Full RAL Colours

Origin OW70 Devon

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.

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