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Welcome to Sash Window Refurbish

Experts in Sash Windows Repair & Restoration, Timber Windows & Timber Doors in east midlands

Sash windows repair prices

Hardwood windows double glazing retrofitting and restoration are two of the sash window refurbishment service packages we provide.

With an emphasis on the window and timber frames functionality, window renovation also incorporates redecorating as a draught-proofing add-on.

The entire window rehabilitation package and of slim-profile double glazing installation are included in double glazing retrofitting, which considerably increases the energy efficiency of the original sash window.


£689 / Avаrage Size Window

Sash window refurbishment cost

 Window frame repair
Window frames restoration & lamination
Window painting 
Draught-proofing (Optional)
8 years paintwork guarantee
20 years on repair parts with Accoya/tricoyya timber


£1679 / Avаrage Size Window

Sash window double glazing cost

 Window frame repair
Window frames restoration & lamination
Functional restoration
Vacuum double glazing retrofitting
FINEO glass
Window painting
8 years paintwork guarantee
20 years on repair parts with Accoya/tricoyya timber
15 Years FINEO glass double glazing manufacture guarantee


Compare our sash window refurbishment services



£689 / Avаrage Size Window

£1679 / Avаrage Size Window

Window frame restoration

Remove and replace rotten wood

Laminate window frames with Tricoya

Repair loose putty

Prepare window frame for painting


Draught-Proofing and functional restoration (Optional)

Draught-poofing, Repair pulley and Cords

£280 – 360

Unblock window

Change locks



Double-glazing retrofitting

Remove old glass

Prepare windows for re-glazing with Fineo glass

Rebate window frame

Instal double glazing units

Adjust weights and pulleys

Re-putty window


It costs about £1600 per window to convert single-glazed timber windows to double-glazed ones through retrofitting.

This price includes re-decorating, draught-proofing, weight modifications, and timber frame restoration. If window frames aren’t solid or if cold air still enters the window through gaps between moving parts, retrofitting will not produce the desired results. Due to this, double glazing retrofitting necessitates a wide range of restoration work.

Your single-glazed window will gain a very efficient energy rating after retrofitting and refurbishment because vacuum double glass has the same U-value as triple glazing, or 0.7.

The preservation of the existing window frames while greatly enhancing thermal insulation is another intangible benefit of retrofitting.


Let’s take a look at some of the frequently asked questions by our clients.

Can casement windows be refurbished?

Absolutely, our staff can restore any type of timber window, including Venetian, casement, sash, bow, bay, and trench doors and windows.

Does it matter if some of my windows are less rotting than others in terms of cost per window?

The cost per window is determined by the window’s size, design, access requirements, and the number of sides that require lamination. Hence, rather than the depth or breadth of the rot, the price is mainly influenced by the number of sides of the window that need lamination. At a quoting process, our experts will be pleased to provide more information about this.

What is “average size” of the window?

The “average size” of a window refers to the typical dimensions or measurements of a standard window of a certain style or type. It is used as a general reference for pricing, installation, and other window-related services.

In your specific example, the “average size” of a window is defined as a 900-1200mm center bar style sash window. This means that a standard or typical window of this style would have a width between 900mm and 1200mm and would feature a center bar dividing the sash into two separate panels. This information can be useful for estimating the cost of installation, replacement, or repair of similar windows.

How long will it take to complete the external window renovation work?

In your specific example, a 1-window project is estimated to take 1 day. However, it’s important to note that this is just an estimate and the actual lead time could be longer or shorter depending on the specific circumstances of the project.

Areas We are Working

Lincolnshire, Nottinghamshire, Derbyshire, Leicestershire, Northamptonshire, Rutland


My technician Andrew replaced all my sash windows that had rotten sills. Accessing the rotten sills was not an easy task. He explained to me what needed to be done in order to fix the problem. He is a great person and I’m happy that he was the one who did the job. He is reliable, tidy, friendly and very professional. I highly recommend him.



I hired Andrew and Alex a while back to repair my damaged sash windows. They were was very considerate and very patient as he did his job. A few days ago, I had another problem with one of my sash lock keys and I called him again to come and fix the problem. I’m very impressed that Liam responded quickly and he not only fixed the problem but he also gave me a spare key. What a great after sales service!

Alan W.


I’m very impressed with the new windows that Andrew installed and also the reconditioning job that he did on other sash windows. The quality of his work is by far more superior than what we got when we hired another company a few years back. We will certainly hire him again if any window work arises

Kelly (Sleaford)


Our decorator referred us to Andrew because some of the work needed a window expert. Andrew together with our decorator did a fantastic job. The work was done efficiently and to the highest standards. Andrew is understanding, committed and very professional. I recommend him without any hesitation.

Steaven Reader


Alex did a great job in fixing windows in our terraced house. The windows were broken, frames damaged and the wood was also rotten. Alex's job was high quality and he did it pretty fast. I was also very impressed that he was considerate of my son’s asthma condition and maintained cleanliness. Top work.



Andrew just recently replaced three sash windows in my Edwardian house. He also repaired and replaced some sills and draught proofed three windows. In addition to that, he also did some carpentry work. What I like the most about Liam is that he did a clean job. He is very professional and always updated me about the timescales and costs. He also did his job with minimal disruptions. I highly recommend him.

Cris M.