• Tradition & Technology

    Timberlook Heritage Flush Sash Windows

    Replicating old wooden windows with modern materials, Timberlook windows are packed with exclusive design features that make them almost indistinguishable from traditional timber frames.

The Alternative to Timber

Packed with Exclusive Features

Timberlook flush sash windows successfully replicate heritage designs. They are for historic buildings and conservation projects. Designed to look identical to traditional wooden frames, our timber alternative uPVC windows and flush french doors have a number of significant advantages.

As beautiful as timber is, it can swell, shrink, warp or twist depending on the weather. Real wooden window frames are also incredibly expensive to buy and need costly, ongoing care and attention. Preserving the original appearance of wooden windows is time-consuming but Timberlook Flush Sash Windows simply don’t need it.

Beautiful, Inside and Out


Heritage flush sash windows also need to look beautiful on the inside, and the Timberlook system has a fully sculptured ovolo profile internally. The curved details provide a more ornate finish to the overall inside appearance of your windows.


The inside can also be finished in our beautiful selection of woodgrain foils, and in a different colour to the outside. Timberlook can blend seamlessly with existing decor or fit right into a new scheme

Concealed Trickle Ventilation


When trickle ventilation is required, it is usually rather unsightly externally. We don’t believe in spoiling the appearance of your window or property – if your project includes trickle ventilation, extended cover vents can be concealed by a head drip on the Timberlook outer frame.


Unique to the Timberlook is a dual setting for night ventilation and high security is built-in. The espaganolette and striker provide an effective, secure locking system with a smooth closing action. It features enhanced security that meets PAS24:2016 with ease and is perfect for flush-fitting windows.




Its all about detail


The Timberlook flush sash system is a true timber alternative window and has a number of important design details that make this modern uPVC window almost identical to heritage wooden frames.

From an installer’s point of view, the 70mm frame depth ensures quicker installation and less making good.

Glass units are supplied separately – not bonded in – making frames and glazing safer to handle, and potential remedial work less complicated.

Perfect corners


Timberlook windows appear to have mortise and tenon joins, like real wooden windows – there are no tell-tale diagonal welds or lines to identify them as PVCu windows.


Unlike other heritage window brands, we hand-build frames in the proper way to achieve the look of traditional butt joints. We fabricate frames using Timberweld technology and in a mechanical way to create perfect corners that are sealed where it matters.


Simply put, it’s the most authentic timber butt joint effect available in a new uPVC window!


Planning Permission

Listed buildings & conservation areas


The innovative Timberlook flush casement windows have been used to satisfy planning officers and used as new windows in conservation areas. A number of projects have been accepted by Cotswold Council, where the local authority commented:

“…accepted as a variation on Condition 11, they are considered to successfully mimic traditional flush casements, and care has been taken over details such as the sill and trickle ventilation…”

Heritage Officer, Cotswold Council


Contact or Visit our Window Centres | Altrincham | Blackpool | Leyland | Poulton | Stafford