Sliding Windows

An absolute classic and one of Wideline’s most popular window styles for houses and units alike. The sliding window allows for large openings allowing maximum airflow and light to flood in to your home.

Paragon sliding aluminium windows are smooth, quiet and extremely easy to operate. With a choice of two, three and four panel configurations, maximum air ventilation can be easily achieved. The robust frame offers strength in exposed areas such as multi-story buildings or those in cyclonic regions. They are fitted with full-perimeter sash seals for maximum weather protection whilst simultaneously reducing air infiltration.

  • Architectural lines offer a clean, balanced appearance
  • Larger robust frame and interlocking mullions for added strength
  • Deep weatherproof seals as standard
  • Special sill options for extreme weather exposure
  • Austral Pearl window lock
  • Glazing options up to 24 mm (double glazing) offering superior noise control and energy efficiency
  • Variety of screen options available

The sliding window is one of the most popular style choices among home owners. The Ascend Sliding Window boasts square rails and a slightly wider frame, keeping a beautiful design consistency with the sashes. The hardware is a defining feature of this sliding window, easy push-and-slide action with minimalist design for a sleek contemporary look.

The features of the Ascend sliding window include:

  • Compliant with AS 2047-2014 and AS/NZS 4420.1:2016
  • Max. 450Pa water rating
  • Halo Aquashield™ compatible for light weight construction (Ascend 25 only)
  • Restricted opening, SecureLine™ and SafeLine™ screen compatible
  • Austral Pearl window lock
  • Sliding door rollers with 10mm adjustment
  • Ascend 25 (100 x 25mm) for residential installation or Ascend 40 (100 x 40mm) for commercial sub-framing installation
  • 4mm - 20mm pocket glazing.

A Wideline classic. Our aluminium sliding windows remain one of our most popular window designs for contemporary houses and units. Our sliding windows are designed to provide excellent access to screens and importantly to the sill sections for easy cleaning.

Other features include;

  • Integrated insect screens
  • Smooth, quiet, sliding action
  • Interlocking mullions for added strength
  • Choice of height adjustable security locks
  • Deep weatherproof seals
  • Special sill options for extreme weather exposure
  • Large range of colours for easy matching.

Hit the link to our Info Centre to read more about Horizon range standard sizes.

Installation Video

Take a closer look at our 3 minute installation video and step-by-step guide to see how to install a Sliding Window.

Visit a Wideline Showroom near you

To see our sliding windows and other product ranges on display, visit our window showroom in Sydney, Central Coast, Newcastle or Port Macquarie. Call us on 1300 523 185 to speak to our friendly team today for more information.

Technical Guides

Download our product technical guides to see Wideline’s standard window sizes.

Light Weight Construction

Are you building or renovating with a light weight cladding? Wideline's Halo Aquashield™ is an innovative and award winning solution designed to be compatible with most Horizon and Ascend window & door products.

A unique integrated flashing system, Halo incorporates the flashing into the window or door, allowing for faster and neater installation. Ask us about Halo!

Get a Quote

Call our friendly team on 1300 523 185, or visit a showroom nearest you. Want to find the windows cost within the next 48 hours? Simply use our online quote request form which makes it easy to specify your project and quote.


Features Paragon Ascend 40 Ascend 25 Horizon
Architectural lines bullet bullet bullet  
Smooth, quiet sliding action bullet bullet bullet bullet
Interlocking mullions for added strength bullet bullet bullet bullet
Larger robust frame for added strength bullet bullet bullet  
Special sill options for extreme weather exposure bullet bullet bullet bullet
Flush Handle option available bullet bullet bullet  
Choice of height adjustable security locks       bullet
Deep weatherproof seals as standard bullet bullet bullet  
Glazing options up to 24mm for improved noise control and energy efficiency bullet      
Halo Aquashield™ integrated flashing for light weight construction     bullet bullet
Variety of screen options available bullet bullet bullet bullet

Download Horizon Technical Guide

Are you an existing Wideline customer?

Natura Sliding Windows

The most popular option in our timber window range, Natura sliding timber windows are designed to provide excellent ventilation and can be fitted with insect screens to keep your home comfortable and pest-free.

Wideline Windows and Doors stocks a range of solid timber sliding windows in the Mid-North and Central Coasts, Newcastle and the wider Sydney area.

Advantages of Natura Sliding Windows

The sturdy and strong Natura aluminium track allows for smooth and quiet operation. Having fewer moving parts means these sliding windows have lower maintenance requirements than many other window varieties. You can expect sliding windows to maintain their quality for many years requiring minimal maintenance when cleaned regularly.

Sliding windows have the advantage of being larger than most other window styles such as double hung windows and therefore are able to provide an unobstructed view of the outside world with greater ventilation and increased natural light. The easy operation of timber sliding windows means letting in fresh air from outside is a breeze.

Glazing Options with Sliding Windows

With various glazing and screen options at your fingertips, your home can achieve excellent energy efficiency. Double glazed windows are available up to 14mm for premium noise control and blocked air infiltration from outside.

Environmentally Sustainable Timber

All Wideline Windows and Doors are available in high-quality, Western Red Cedar, Meranti or Merbau timber varieties.

We take pride in using and supplying sustainable building products, with our GreenTag® Certified Western Red Cedar widely recognised as a renewable source that produces fewer greenhouse gases and less pollution. Along with providing a stylish finish, Western Red Cedar is simple to use and can be functionally moulded to suit your design preferences.

Visit a Showroom or Obtain a Free Quote

To discuss sliding window prices or to view our range of sliding window products, visit our window showroom in Liverpool, Rosebery, Tuggerah, Newcastle or Port Macquarie. Use our online quote request form to specify your project and get a quote for your timber sliding windows.

Wideline Windows and Doors create fixtures using advanced manufacturing technology to create the look you desire. Contact us online or call 1300 523 185 to speak to our friendly team for more information.


Sliding Windows



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