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About three counties - sash windows
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10 Year Guarantee

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Made in the UK

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1000+ Checkatrade Reviews

Here at Three Counties we are passionate about creating new windows that suit the style of your home and your personal taste. Our sliding sash windows are one of the most stunning window styles you can have for your home and will transform the look of your house.

We use our skills and experience to recreate everything you would expect from a traditional sash window, including authentic style staff beads, slender proportions and the traditional “butt-joint” manufacturing technique that leaves the finish you desire.

As well as being beautifully designed, our sliding sash windows offer the security and energy-efficiency you would expect from a Three Counties window. Our exclusive deep glazing bar and beads with Krypton gas units means that our sliding sash windows are A rated and highly secure.

Three Counties - Sash Windows

Add character and charm to your home

Whether you are looking to update your existing sash windows or you want to add sliding sash windows to your home, you will add some extra charm and character to your home.

Three Counties - Sash Windows

Available in a range of finishes

Our sliding sash windows are available in a range of finishes and styles so you can choose a design to suit you. If you’re unsure which style of sliding sash window is right for you then one of our experts will be able to talk you through your options and let you know what they recommend.

Three Counties - Sash Windows Security

High Security Performance

Our sophisticated locking systems mean that all of our windows offer a high level of security for your home.

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Tailor made to suit you

Our sliding sash windows are made to order meaning you are getting something truly bespoke that will suit your home and your style. Check out our gallery of sash windows

Three Counties - A-Rated

Strong, durable and secure

Our high quality sliding sash windows are strong, durable and will require a low level of maintenance. They also offer a high level of security.

The Sliding Sash Windows Collection from Bygone Windows

Here at Three Counties we are proud to be trusted fitters of Bygone Windows - a stylish and pioneering style of sash window, engineered and manufactured in Britain and finished to the highest quality. This high performing design offers efficient and effective air circulation to help reduce the risk of mould and condensation in your home. They also offer a high level of security and are a police-preferred design. On top of this they also have an impressive energy rating so you can feel safe in the knowledge that your beautiful sliding sash windows are also of the best quality.

Colin Drumm
Colin Drumm
2022-04-14
We used Three Counties to replace our front door and porch. Throughout the process, from design, quote, survey and installation the service and level of communication has been fantastic from all involved. The installation team were great, friendly and courteous, working cleanly and tidying up after themselves. We would have no hesitation using Three Counties again, or recommending their services.
Clare Rogers
Clare Rogers
2022-03-29
Fantastic service from start to finish. Kept me upto date all the way through the process. Very prompt coming out to measure up and discussing what windows I would like. The install was done professionally by a fab team (James and Josh), cleaned and tidied as they went, friendly team. Would highly recommend
Donata Noad
Donata Noad
2022-03-28
Very happy with Three Counties. That’s the second time we have ordered services from this company and both times it was flawless. Prices are very competitive, customer service very good and workmanship excellent. I trust this company 100% and will be definitely be using them in the future. Paul, gentleman who fitted the door, done an amazing job. There is nothing there that person like myself (with slight touch of OCD) would have an issue with. Highly recommended local company that you can trust.
Steve Colvin
Steve Colvin
2022-03-17
We replaced all windows and doors with 3-Counties. Efficient and tidy, the workmanship is great. Very happy with experience of using them and wouldn’t hesitate to recommend them
Paul Thompson
Paul Thompson
2022-02-15
We used Three Counties to replace 7 windows at our property in February 2022. From the initial quotation, through survey to installation I was extremely impressed with them. The installation was completed by Dan and Cam who I cannot praise highly enough. Their workmanship and attention to detail / finishing was exemplary. They were polite and worked hard / efficiently to complete the job in 1.5 days. They took great care to protect carpets and furnishings whilst working and spent time tidying up, leaving the property very clean. I would not hesitate in strongly recommending this company.
Ryan Wel
Ryan Wel
2022-01-14
Professional installation by the team including brickwork and windows will definitely be using again for other windows at the property
MissS
MissS
2021-12-09
Excellent service all round from Three Counties. I fully recommend this company, the fitters Ron and Liam were brilliant, thorough, polite, continually clearing everything away, very tidy, helpful, punctual and never wasted time. The windows and doors are great, one very happy customer.
John White
John White
2021-12-07
The quote was the price (no hidden extras).The quality of the doors we purchased and the fitting of them was top notch It is nice to find a company that keeps you informed as regards fitting etc at all times We had a problem through no fault of 3 counties and they sorted it efficiently and effectively.We were kept up to date at all times. I have no hesitation in recommending them to anybody thinking of any form of double glazing. This revue would not be complete without a big thankyou to Kate and the fitters.
Tim Padday
Tim Padday
2021-11-17
We are so pleased with our new bi-fold doors supplied and fitted by Three Counties. The job was done professionally and in the time frame provided. Dan and Cam took the upmost care on installation to ensure everything was perfect and they were a pleasure to deal with. Credit to the administration team also who kept us fully informed of the process and schedule. I would highly recommend Three Counties for their workmanship and already have to our friends, who have employed them to do their conservatory