Box Sash Windows

Replacement and Refurbishment

Wooden Sash Windows Replacement

The majority of traditional wooden sash windows can be either repaired or renovated, but in some cases they have gone past the point of repair. Sometimes the traditional timber cases and sashes have been replaced by modern uPVC replacements which diminish the period feel of the flat or house, or have been poorly maintained and need to be replaced. 

ATLASS London Ltd have applied our traditional skills and years of experience to the craft of making made-to-measure sash and case window replacements, and now offer a bespoke replacement window service for those who need a complete sash and case window replacement. 

Marrying traditional methods and timber with some great advances such as the Reddiseals® draught proofing system and double glazed panes suitable for use in sash windows, we make brand new replacement sash and case windows that retain the beauty of original sash windows whilst including the excellent draught and noise reducing qualities of modern windows. 

Expertly manufactured and installed by our highly-skilled team, our replacement sash windows are an excellent way of retaining or reinstating the period beauty of your home.

Sash Windows Refurbishment

ATLASS London Ltd offer you a high quality and professional sash and casement window refurbishment service - overhaul and renovation, double glazed sash replacement within the existing frame, complete renewal and professional decoration. We repair any sash specialise in the restoration, replacement and refurbishment of wooden windows in London and the surrounding areas. We repair any sash and has built a relationship of trust with our customers. As we repair any sash, our staff work together to provide the best service possible for our clients. Our helpful staff will address your needs and help maintain the integrity of your home by restoring, replacing or refurbishing your windows. 

The majority of windows can be salvaged through use of the Repair Care System and traditional joinery methods. Windows can be fully draught proofed with our perimetre sealing system. The system has a positive effect on the overall Window Energy Rating (WER). The passage of sound is reduced, u values enhanced and mechanical efficiency is greatly improved. We also offer a professional decoration service to complete the transition. 

We can supply bespoke sash replacement units housing slimline double glazing which can be installed within existing box frames. Combined with our perimeter sealing system, U Values and noise reduction will be greatly improved. The customer gets the benefits of a double glazed unit without compromising the integrity of a historic sash or casement Window.

Wooden or uPVC Sash Windows?

Whether you're renovating your home or designing a new one, there's always one decision which leaves many homeowners scratching their heads and that's the windows. 

Whilst it might seem like a simple enough job when compared to deciding room partitioning or choosing a carpet, the windows of your home are one of the first things that greet guests and will stay with your home for decades to come. 

That's why it's so crucial to get your windows right, and why so many homeowners find themselves confused by the choice between uPVC and wooden windows. We believe that wood is the superior material for windows.

Timber Sash Windows Maintenance

Original timber sash windows are an essential part of our heritage and a distinctive feature of numerous period houses across the UK, from cottages and terraced homes to stately mansions. The sashes themselves – that is, the opening parts – are sliding rather than hinged, as with casement windows. They usually slide vertically, hung on cords or chains and counterbalanced by metal weights housed in a box frame. 

Where homeowners appreciate these architectural antiques, they employ suitable contractors to carry out any necessary work. However in most cases, some basic maintenance and repairs should ensure the windows will provide many more years’ good service. 

Where necessary, we can undertake draught-proofing or more major repairs, such as cutting out and replacing sections of rotten timber. Another option with draughts and rattles is to fit a cam-action catch or sash wedges.
We operate in North London and surrounding areas - Hampstead - Highgate