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Sash Window Experts Sash Window Experts bring over 30 years of experience to the trade, having restored, repaired, and crafted hundreds of sash windows for homes across the South. We are passionate about restoring sash windows rather than replacing them, and over the years, we've perfected a range of skills and creative techniques essential for both preserving the original charm and enhancing the functionality of your windows.
Served areas
  • We serve the South East, including Sussex, Surrey, Kent, Brighton, Tunbridge Wells, Reigate, and others.
Business details
  • Licensed
  • Insured
Highlights and features
  • Over 30 years sash window restoration experience
  • Family-run business with expert craftsmanship
  • Passionate about preserving period windows’ charm
  • Skilled team delivering flawless, authentic finishes
  • Competitive pricing with free no-obligation surveys
  • Outstanding reputation built on client recommendations
Payment methods
  • Cash, Debit cards, Credit cards, Mobile payments
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Services
Sash Windows Double Glazing At Sash Window Experts, we combine modern double-glazing technology with craftsmanship to create beautiful, functional sash windows with numerous benefits.
Sash Window Repairs We are dedicated to restoring the period charm and full functionality of traditional sash windows with the utmost craftsmanship. For over three decades, our skilled artisans have carefully repaired and renovated countless windows, preserving their original features while incorporating modern improvements. Whether on-site or in our workshop, we ensure each window is sympathetically refurbished, allowing you to enjoy its timeless elegance for many years ahead.
Sash Window Renovation We take pride in offering a comprehensive sash window renovation service, dedicated to preserving the elegance of your period property. Our experienced craftsmen sympathetically restore original features, replacing decayed sections and strengthening joints while maintaining architectural integrity. With meticulous attention to detail, we rejuvenate your windows, improve functionality and extend their lifespan, all while retaining their historic charm.
People
Mark
Mark
Owner
Coming from a carpentry and joinery background I soon found that I was most passionate about restoring and renovating old properties to their former glory rather than working with modern buildings. Sash Window Experts started to focus entirely on the preservation of period windows and doors and our small team of craftsmen working from our workshop take great pride in the exceptionally high quality of our work whether it be reproducing whole new box sash windows or renovating existing windows and doors.

We are a small family-run business and always aim to deliver very competitive prices for our quality work.
Reviews (32)
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Robert Lawder
Jun 20, 2025
Mark, Lisa and their team - Steve, Matt, Ollie and Pete repaired 9 badly decayed sash windows on our Victorian house in a conservation area. The work was finished to high quality, beautifully done and beautifully painted. The team was careful and considerate throughout. They kept to time and came in slightly under the quote value, accounting for elements of the original frames that they were able to repair rather than replace. I would wholeheartedly recommend them for work in a heritage setting.
Simon Pugh
Mar 25, 2025
Sash Windows Experts did a fantastic job replacing our Victorian sashes. The quality of the work and the professionalism of the team was outstanding. Many thanks, Mark and the crew!
Robert Hamberger
Dec 28, 2024
This is the second time we have used Sash Window Experts, and we went back to them for hardwood double-glazing of our second bay window because we were so pleased with how professionally they worked previously, and the excellent results. They were prompt and attentive as ever - real experts in their field. We're delighted with the standard of their work, and would highly recommend them. The windows look great.
Update: We have now (May 2024) used Sash Window Experts for the third time for hardwood double-glazed sash windows for our kitchen and second bedroom, to complete window renovation in our flat. They're as professional as ever, prompt and efficient, clean up well after themselves and the work was completed to a high standard in two days, as they said. We continue to recommend sash Window Experts.
Micaela Hobbs
Oct 14, 2024
I cannot praise this company enough. Mark and the entire team, who renovated all the rotten, old and drafty sash windows in our small flat, have been amazing. Gary, Steve and Ollie were, without exception, professional, courteous, great craftsmen and clean and tidy. The quality of the windows, both from the workshop and on site renovations is excellent and the style exactly as the old windows once were. Communication was also easy. I can highly recommend this company. Thanks to all the team.
Tony Kendall
Feb 08, 2024
So glad we used Sash Window Experts for our job.replacing old window sashes for new double glazed ones. Gary and Steve are great craftsmen and lovely people. We would certainly use this company again, and highly recommend it to others.
Michael Bennison
Jan 04, 2024
A very professional job, carried out to a high standard. No problems and courteous and pleasant craftsmen.
"Did what it says on the tin"
Mjb
Neil Price
Jun 28, 2023
They say good things are worth waiting for - and so it turned out when commissioning Mark's team to refurbish and draught proof 6 sash windows of varying states of disrepair in a very old house. We had to wait ~3months to get expert refurbishers and all round good guys Pete and Ollie in, as they were inundated with orders (always a good sign!). The quality of work and craftmanship is first class - everything is explained and any changes to scope dealt with sympathetically but thoroughly. Highly recommended. Professional, exceptionally tidy and lovely people to do business with.
Steve Bradford
Apr 14, 2023
Mark and team have been incredible. The workmanship is first class. We have an Edwardian house and had all the sash windows upgraded with double glazing and mechanisms. They look fantastic. I addition they have replaced the enclosed porch and front door. The house looks amazing and we could not be happier. Thank you
Warwick Banks
Mar 10, 2023
The team are hard working and highly skilled and transformed our large sash windows - worth every penny. Highly recommend !
Kay Barfoot
Mar 01, 2023
I have had South East Sash Window Experts refurbish my 10 sash windows. I was extremely impressed with their work ethics right from the start of having a survey through to the date of work being set, the workmen arriving and carrying out the work to the invoice being provided. They kept me informed all the way. All the work men worked well and kept me informed on what was happening. They cleared up at the end of every day and protected my furniture and carpets. I would recommend this company for an excellent standard of work for a fair price. Thank you
Steve Hartman
Dec 27, 2022
Really appreciated the top quality service from craftsmen that are passionate about Sash windows.
Roxana Avanu
Jun 08, 2021
Amazing service from start to finish, no issues and no drama. The name Sash Window Experts is well chosen. Mark and his team - Gary and John were extremely helpful and professional and the end product - new sash sound proof double glaze windows upstairs and the kitchen triple sash window restored was top quality. I am very grateful to Sash Window Experts.
Helen Thomas
Jan 19, 2021
If I could clone you for all the other work we need to do over the next few years, I would! Thank you Mark for having such a good team in place. And huge thank you to Gary, Alex, John and Glen for taking such care of our windows and giving them what they needed after years (decades?) of neglect. Your attention to detail and 'doing it right' was very much appreciated, and your ability to solve problems was awesome. Helen & Tim, Godalming
Ben Penfold
Apr 21, 2020
Mark and Gary installed sash windows in my house this year and did a great job. Very high quality product and finish! Thanks both!
Natasha Birley
Mar 02, 2020
Mark and his team are amazing. They restored our sash windows and doors. Mark is really knowledgeable and passionate and explained the process to me so I knew exactly what they would be doing. Once the work commenced I was amazed by how well they draft proofed the windows. They took so much care and the guys were polite, tidy, timely and a joy to have around. I would absolutely recommend the team to anyone thinking of restoring their windows, they look AMAZING!
Geoff Parsons
Jan 28, 2020
Excellent service from Mark. The windows installed last week. Look elegant and noise reduced considerably.
Rachael Smith
Jan 21, 2020
Absolutely outstanding quality, value for money and service from Rob. This is the second time Rob has done work for us and we can highly recommend him. The sash windows are like new! Thanks Rob
Jon Reed
Jan 14, 2020
Used these guys to do a total refurbishment on the windows of my 1870s Victorian Villa style house. Incredibly happy with the work and the guys doing it are just superb. On time to the minute every day, clearly take pride in the work they do and super friendly. Would not hesitate to use again!
Peter Jones
Dec 21, 2019
Our house is Edwardian and has the original sash windows from 1906. I really want to make sure that any double glazed windows did not look out of place - so the woodwork, including the side bars etc should still be very thin to match the originals. I was fearing ending up with fat wooden bars but Mark took me to see a previous customer and I was happy to see the woodwork there and it put my mind at rest. We went for the thin Krypton windows. Now the windows are in they look very good and match very well. To be fair to everybody, we will not know until the winter how well they remedy our warmth and condensation issues in the house but are confident we made the right choice.
Other suppliers would not do separate window panes and instead would only do a large window with a false wooden strip down the middle to make them look like two. We did not want that.
The carpenters, Steve and Gary turned up on time (early actually) and got on with the job very efficiently and left no mess behind.
I am very happy with the company and the windows.
Rocker
Jun 13, 2019
Excellent work. My sash windows are now more draftproof, they go up and down easily and look great
David Bicknell
May 16, 2019
Excellent work, carried out window refurbishment and supply / fit secondary double glazing. I would recommend them.
Charles Fachiri
Apr 25, 2019
Mark and Gary were a great pair to deal with. Refurbished our window neatly and professionally and will deal with again. Strongly recommend their work and have no hesitation. In fact neighbour is so impressed they're going to make contact.
Bram Van Huet Lindeman
Apr 23, 2019
Mark and his team where very easy to work with, no fuss and works where carried out in a professional manner. They sorted out an old bay window in our lounge with new bottom sills and draught proving strips. We really notice an improvement when sitting in the lounge,watching telly, much more comfortable now. Nigh recommend Sash Window Experts.
Michaela Broad
Apr 10, 2019
Great work from Mark and team, would definitely recommend, good attention to detail and follow up service.
David Mortimer
Apr 09, 2019
Mark, Gary and Dave have done a fantastic job repairing our Georgian sash windows this last week. Considering ours were broken and painted shut and 200 years old, they now look and work like new. Worth every penny and you couldnt meet a better group of guys to work on your house. Everything was left spotless. Thanks Mark and team and hope to see you again soon for secondary glazing once Ive sorted out permission.
Karen Parnell
Feb 01, 2019
Happily recommend Mark and his team. Very professional, clean and tidy. Really pleased with the finished job. Would definitely employ them again
Will Mulvey
Dec 08, 2018
Mark and his team take great care around your home. They are friendly, considerate and do a fantastic job. Highly Recommended .
Rachel Wright
Jul 04, 2018
Very pleased with the restoration service provided by Mark and his team. Am happy to recommend them wholeheartedly
David Frosdick
Jun 08, 2018
These guys are awesome! Quality work and the added bonus of being nice chaps. Are windows are superb. They are clean workers, efficient and honest guys. Would happily recommend and use again!
Tori Cavanagh
Jun 01, 2018
I'm really pleased with the work and service. They turned up on time, were polite, friendly, did a great job, cleared up their mess and left. The window itself now glides up and down smoothly and hopefully the new brushes will keep out the draughts in the winter.
Clare Slater
Apr 04, 2018
A pleasure to have Mark and his team in the house. They did a fantastic job on my windows with minimum disruption. Such a professional job. They have my very highest recommendation.
Matthew Walkowiak
Feb 25, 2018
Mark and his team did a great job restoring our sash windows. They were all really friendly and were clearly passionate about their work. They left the house really tidy (It's never going to be spotless with that amount of dust flying around the house).
I would recommend Mark and his team to anyone looking to complete work on their windows.