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Timeless Heritage Flush Casement Windows
The premium Flush Casement Timber Alternative Window


The newly unveiled Timeless FlushSash window is reminiscent of early 19th Century timber windows and is ideal for heritage homes, particularly in conservation areas where authentic looks are all-important

However traditional this window may look, it offers deceptively modern performance. Your home will be a haven of warmth and quiet, thanks to the thermal and acoustic insulation of the Timeless FlushSash. It has a five-chamber internal construction for increased energy efficiency


With the Timeless Flush Casement you will no longer need to worry about the draughts and damp that are traditionally associated with period properties. Perfect for heritage applications, your home could be a warm and quiet haven if you choose to replace your old weather-worn windows with the elegant, energy-efficient Timeless FlushSash

The five-chamber PVC-U frames of the Timeless FlushSash, with double or triple glazing, will ensure your home is extremely weatherproof and draughtproof, providing an outstanding thermal barrier against driving winds and rain, even in the most exposed locations

Retains the flush finish, but with a classic welded joint, reducing the cost


Unlike other flush systems, the Timeless FlushSash is available in two jointing options, Classic Welded joints and Timeless Detail, our Traditional Mechanical Joints. Classic Welds give a contemporary and modern twist to this heritage style. The corners are precision welded so that the join is seamless. The Timeless Detail Mechanical Joint is a traditional style mitred butt joint that is sealed in place, replicating a timber joint with meticulous detail

Our premium timber-like mechanical joint for true authenticity of period flush casements


Timeless Windows offer two mullion options designed to suit the style of your home. The standard mullion replicates a traditional looking timber window finish and offers an aesthetically pleasing solid look and feel. If you’re looking to maximise the glass area, the Invismull offers an external zero sightline thanks to the removal of a traditional mullion and instead replacing it with a thin cover strip on the internal face


Your windows shouldn’t just look the part, they should provide the highest standards of security to keep your family, home and belongings safe. With the Timeless Flush Sash, you don’t have to choose between style and security

The newly unveiled Timeless Flush Sash window is reminiscent of early 19th Century timber windows and  is ideal for heritage homes, particularly in conservation  areas where authentic looks are all-important

However traditional this window may look, it offers deceptively modern performance. Your home will be a haven of warmth and quiet, thanks to the thermal and acoustic insulation of the Timeless Flush Sash. It has a five-chamber internal construction for increased energy efficiency

Thanks to the system’s clever design, it seamlessly combines timeless elegance with a range of robust security features

Every window offers multipoint locking and features industry-leading hardware in the form of stylish key-locking handles The multi-chamber construction of the window frames ensures impressive structural strength

The Timeless Flush Sash system meets or exceeds all British Standards and holds relevant accreditations for all aspects of security and weatherproofing. The PVC-U profile used to create these high spec windows has been independently assessed and has BS kitemark and BBA accreditation, it achieves BS7950 and PAS 023/024 for security and BS6375 wind and water testing (Classification: severe)

Even your Warranty is Timeless!

With all our Elitis Timeless products, you can register to get an extended warranty of up to 15 years

Every covered item is individually tagged and through registration, you can extend your included up to 10-year warranty to an up to 15-year warranty on the Elitis products. This is direct with Elitis through online registration only

Joint System

Our Elitis Timeless Flush Window System can be manufactured in three ways to help achieve a different look

Please discuss these options with your consultant online, in-store or at your home

Timeless Hardware

You can personalise your beautifully-designed Timeless FlushSash windows with a choice of heritage details. Choose our decorative monkey tail or pear drop handles with ornamental peg stays to give the feel of a genuine traditional timber window. These optional finishing features will give your home’s interior as much historic style and authenticity as its exterior

Speak to a member of our friendly team to discuss the many options available for your home. We can help add character and class to your property while improving its energy efficiency

Timeless Traditional Pear drop Handles and Peg-stay

A unique, traditionally designed teardrop handle that fits perfectly with the Timeless Window and Door Collection. The Pear drop handle grip has been ergonomically designed to fit perfectly in the palm of your hand. Matching traditional peg stays are available to create a perfectly matching Timeless window. Available in matching colours

Timeless Monkey Tail Handles and Peg-stay

Elegant design inspired by 19th century ironmongery. Manufactured from die-cast zinc with a specially formulated finish, it is suitable for all our Timeless styles, most rooms, and most interior schemes, you just need to choose the best colour option for you. Matching traditional peg stays are available to create a perfectly matching Timeless window. Available in matching colours

Colour Selection

Timber effect finishes like Natural Irish Oak or Rosewood compliment timeless flush sash windows perfectly for end users who crave authenticity

More contemporary shades include Chartwell Green, Agate Grey, as well as the simple but effective Anthracite Grey which always gives off a uniquely bold feel

Heritage Colour Range

Textured Cream RAL 7032 on White 

Woodgrain Anteak on Anteak RAK 7048

Smooth Antrhacite Grey RAL 7016 on White 

Textured Anthracite Grey RAL 7016 on White

Textured Agate Grey RAL 7038 on White

Textured Woodgrain White

Woodgrain Anteak RAL 7048 on White 

Special Order Colours

Textured Woodgrain White on Smooth White

Textured Silver Grey RAL 7001

Textured Chartwell Green RAL 6021

Woodgrain Rosewood RAL 8015

Woodgrain Anteak RAL 7048

Textured Agate Grey RAL 7038

Textured Beck-Brown (Black) RAL 8022

Textured Anthracite Grey RAL 7016

Woodgrain Antique Oak TAL 80011

Woodgrain Monument Oak RAL 7006

Woodgrain Balmoral RAL 7030

Woodgrain Irish Oak RAL 1011

Note RAL Codes are the closest match and do not always represent a perfect colour match, and in the case of woodgrains, will represent the main colour of the woodgrain only


We can now supply a Timeless Entrance Door to match your Timeless windows.

Available in all the same heritage colours as the Timeless Flush Sash windows, you can have a door that matches your windows without the extra lead times

Quality and Performance

Full 70mm, 5 chambered profile system

Manufactured under BS7412 and BS7413

Glazed windows are BFRC 'A+' energy rated as standard

10-Year written guarantee

Handcrafted using traditional butt jointing

Wide range of colour finishes

Recently installed local Timeless Flush Casements

Most Recommended Best Reviewed Window and Door Installer in South Wales

As Approved Installers for Timeless Flush Sash Heritage Timber Alternative Replacement Casement Windows and Elitis Products, we offer our dedicated survey and install service throughout South Wales including Abergavenny, Newport, Cardiff, Barry, Monmouth, Chepstow and Brecon areas and beyond


Minimum and Maximum Dimensions

 Window Style Min Width Min Height Max Width Max Height Design Wind Pressure
 Side Hinged 400mm 400mm 700mm 1350mm 800 Pa - 2400 Pa
 Top Hinged 400mm 400mm1250mm  1250mm800 Pa - 2400 Pa 
Based on Double Glazed 4mm+Argon+4mm Glass Units, other glass specifications will change the unit weight and therefore the maximum sash sizes

Visit us
HERONHURST Window and Door Studio
18 Mill Street Industrial Estate, Abergavenny  NP7 5HE

Talk with us on Abergavenny 01873 877670
Cardiff 029 2000 1727    Newport 01633 505306     Brecon 01874 508305     Valleys 01495 707808
Aftersales Service 01873 858428

What's App and SMS Messages 07723 455659

Heronhurst Window and Door Centre Limited. Company Reg. No. 05186594 VAT Reg. Number 840 7009 49

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