North London | West London | South London

Sash Window Specialist London

London Sash Window Specialist have been overhauling sash windows and installing double glazed sash frames in London for over 20 years Over that time we have built a reputation for providing the highest possible quality of craftsmanship, at very affordable prices. 

A complete range of period window renovation services ensures we can rectify any problem with your existing period windows.  Our core services include:

Professionally installed draught seals offer the best value for money upgrade.

Extensive timber window repair service.

Low-e double glazing reduces condensation and improves thermal insulation.

Draught proof and double glazing for case windows.

Repair and weather seal period doors for a comfortable home.

Custom made timber windows & doors.

Greater London is serviced by two different branches:

North & West LondonEstablished in 1996

South LondonEstablished in 2005

In recent years there has been an explosion of sash window companies in London, not all of them reputable.  Choose carefully before contracting somebody to restore your period home.  

Sash Windows in North London, West London and Central London

Sash Window Specialist (London & Berkshire) have been servicing North, West and Central London since 1996.  

Liam and his team are expert sash window double glazing & refurbishment specialists. They will transform your wooden period windows, improving the comfort, energy efficiency and security of your home. 

Based out of Reading, Berkshire they provide coverage across all North and West London suburbs.  As the Sash Window Specialist UK head office they offer our complete range of renovation services, for all types of heritage window and doors. 

Contact Liam today for a friendly chat about your sash window & door renovation and repair requirements.

Mob :  07799 023326

Workshop: 01189 699407

  • Liam fitted replacement double glazed sashes to my property back and front and I have been delighted with them. I had old secondary glazing in the front which was ugly and did not do the job. I now no longer have condensation dripping down the windows and the house is quieter and warmer. After doing some research into specialist companies I am so pleased that I chose the Sash Window Specialist. Liam is very knowledgeable and the work carried out was done with the minimum of disruption. My new windows have transformed the house. Very happy with the Sash Window Specialists and would certainly recommend without hesitation.

    thumb JANE MAGUIRE
  • Liam is great - did a brilliant job for us a few years back restoring some old sash windows and we have since recommended him to others. Would definitely use again.

    thumb Sam Elworthy
  • I've been using Sash Window Specialist for many years now and I can honestly say you won't get a nicer bunch of guys. They have done all sorts of work for me in two different houses. From glazing replacements, sash unit overhauls/replacements right the way to providing me with bi-folding sliding double-glazed doors. I honestly love these guys and will continue to use them and recommend them to friends and family!

    thumb Gary Catlin
  • Liam and Paul have just fitted replacement double glazed accoya sashes in fifteen of our windows. The quality is fantastic and they are excellent replicas of the original windows - except without the drafts and condensation. Liam was really responsive to our initial enquiry and visited to measure up and also provided some good advice and guidance. They both have a real eye for detail and their craftsmanship is excellent. We changed our minds on some of the window furniture and they even dropped by and changed these free of charge. We were all working or studying from home whilst they fitted the new windows and they were really considerate. We couldn’t recommend them highly enough and we are absolutely delighted with the end product.

    thumb Ally Bush
  • We met Liam last year and were instantly drawn to his open and honest demeanor. He was very helpful in giving us practical advice on what he thought would work and outlined in detail the options and choices that we could consider. We were delighted to find that not only was he the more experienced option, but also that the quote offered was considerably more competitive than all the other sash window specialists we saw. We went ahead and had 8 brand new sash windows fitted, and 7 existing windows fully reconditioned & draft-proofed, as well as a couple of casement windows and a balcony door refurbished. The quality of the work was outstanding and we are over the moon with the new windows - the craftsmanship and finish is excellent and the house is quieter from outside noises and was definitely warmer / less draughty over the winter! Liam and Paul were both incredibly professional and very communicative, even though we were often working from home whilst they worked they were very accommodating and kept us updated on progress. We are already planning to have them back to refurbish and double-glaze our back door and another casement window 🙂 I cannot recommend them highly enough. Thank you for everything Liam and Paul!

    thumb Tim Powell

South London Sash Windows

Sash Window Specialist (South East) have been restoring heritage windows and doors in London since 2005. 

Gary can repair & refurbish all types of traditional wooden windows and doors to improve the energy efficiency and security of your period property.

Based in Crawley, covering south east England inc South London, South West London, Kent, Hampshire, Surrey and Sussex.

Contact Gary today for a friendly chat about your sash window & door renovation and repair requirements.

Mobile:  07748 648429 

Window Workshop

Our sash window workshop, in Berkshire, is dedicated to producing bespoke windows and doors to the highest possible standards. Replicating any style of timber casement, door or sash window, to preserve the architectural integrity of historic buildings.  Castellated, Gothic, round or other complicated window types are a speciality

  • Single glazing
  • Low-E double glazing
  • Accoya Wood – accredited workshop. 

How much does it cost to refurbish sash windows in London?

We are the affordable London sash window and door renovation experts. Use the price guide to estimate how much our period window and door renovations cost.  We are very competitive, offering outstanding value, although the cost of sash window restoration prices in London are typically towards the top end of our price list.

At Sash Window Specialist London we believe in quality first.  We don’t hide behind stock images or employ professional photographers to stage shoots. Every image throughout this site was taken by our own tradesmen, ensuring you see an accurate representation of our high quality craftsmanship. 

For detailed examples of our work see Our Blog.

Our Sash Window Services

With so many years experience restoring sash windows & doors we can usually provide an accurate estimate from photos alone.  Attach your pictures in an e-mail including close-up shots of any obvious problem areas.  In your message provide as much information as possible, including an approximate size of the window height & width. We will send you an estimate by email before arranging a meeting to confirm your specific requirements.

“Advanced Solutions for Historic Windows”