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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

If you are considering sliding sash windows for your home and you want some expert advice or a free design consultation then call us on 01252 414800 and speak to one of our window experts about your requirements.

Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows Gallery Image
Three Counties - Sash Windows

About Sliding Sash Windows

Sliding sash windows can add style and value to your home and are one of the most sought after window styles by homeowners. Take a look at just a few reasons why you should consider sliding sash windows for your home.

Three Counties - Sash Windows

Adding Character and Charm

Sliding sash windows can add character and charm to your home – this period detail will add a beautiful finishing touch to the look of your home.

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High Security

Our sliding sash windows are police-preferred due to the high level of security they offer. If your old-style sash windows don’t offer the security you desire then consider upgrading to our beautiful secure sash windows.

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Energy Efficient

If you have a character property then chances are your original windows do not offer a high level of energy efficiency. Our double glazed sliding sash windows offer an A-rated level of efficiency – meaning you can enjoy lower energy bills and a warmer home in the winter months.

Three Counties - Sash Windows Joint

Excellent Ventilation

Our high quality sash windows offer fantastic ventilation and can help to reduce the chance of mould and condensation in your home.

Three Counties - Sash Windows

Bespoke Design

Our windows are individually designed to suit your home and your style requirements – so when it comes to the shape, colour and finish of your windows, you can feel safe in the knowledge that your windows are bespoke to you.

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Local Experts

At Three Counties we have been designing and fitting windows in Berkshire, Surrey and Hampshire for many years so we are the experts in what styles suit the local area and your local neighbourhood.

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