Derwent Sash Windows

Timber Windows provide a fantastic range of engineered timber products. From elegant flush fitting casement windows to period timber sliding sash windows along with bi-folding doors, French doors, entrance doors, storm proof windows and much more. These fantastic products are finished in two layers of a very high quality micro-porous water-based painting which is guaranteed for 8 years making these beautiful timber windows low maintenance. All our windows and doors are factory painted prior to assembly, providing complete protection from moisture absorption and maximising longevity. Every product receives a base coat of timber preservative, then a primer coat, followed by two coats of micro-porous paint.

Derwent Sash Windows Ltd is a family run business that has been serving the East Midlands and surrounding areas since 1994.
Derwent Sash Windows Ltd provide a full 10 year insurance backed guarantee.
Bygone Collection windows also come with a 10 year manufacturers guarantee, giving you complete peace of mind.
Derwent Sash Windows do not believe in the 'hard sell'. We offer a free, no-obligation quotation and consultation. A visit from one of our specialist advisers means no high pressure selling.

Derwent Sash windows offer a complete range of doors in Timber, Aluminium, Composite and wood effect UPVC. All doors can be custom styled to any design you require and can feature multi point locking, stained glass, leaded glass and a wide selection of door furniture.
Besopke Manufactured hardwood doors made to any design, fully finished. The doors can feature the very latest multi-point locking; all furniture options available and existing stained glass can either be retained and fitted into your new door or manufactured to any design.

There cannot be a more quintessential style of window. Simple in design and elegant in proportion, sash windows remain the most beautiful and efficient style of window ever created.
Derwent Sash windows are proud to offer a complete range of sash windows. A visit by appointment to our showroom in Derbyshire will help answer any questions you may have and you can see the full range of working sash windows we have to offer. From the very latest Timber jointed wood effect sash windows, to traditional pulleys and weights specialist conversation sash windows.

With over 25 years' experience in window and door installations, Rob leads Derwent Sash Windows as a family-run business. His commitment to quality craftsmanship and customer satisfaction drives the company's reputation for excellence in heritage property restoration.

Yes, our Bygone Collection provides authentic wood-effect UPVC sash windows with low maintenance requirements.

All applicable installations meet FENSA regulations ensuring building control compliance.

Our specialist range replicates traditional designs including period architraves and stub cills for heritage properties.

Our Ripley showroom displays over 50 products with expert staff available for free consultations Monday-Saturday.

Engineered timber windows come with industry-leading guarantees covering durability and performance.

Our windows reduce heat loss by 74% compared to single-glazed units, achieving A+ energy ratings.

From measuring to fitting, nothing was left to chance. Windows arrived on time and were speedily and professionally fitted. Everything was made good afterwards with no fuss. In fact, I was so impressed both with the quality of product and fitting, I ordered another set to match. As I say, a first class company with first class staff.

We had Evolution flush casement windows fitted as well as a new Timer Doors front door with side panels. The windows and door include encapsulation of the original leaded light stain glass windows. Dealing with the office at Derwent has been a pleasant experience from our first visit to the showroom through to completion of fitting. Likewise, all the fitters who have been out to the house have also been very extremely friendly, professional, and helpful.

We are very pleased with the quality and appearance of the products and have received many complements from neighbours, visitors, and passers-by! We would have no hesitation in ordering from Derwent again in the future.

We have had all of our external windows and doors replaced by Derwent in 2 phases over the last couple of years and honestly couldn't recommend them highly enough. Great people to deal with, attention to detail and quality of materials is excellent, no sense that the job needs to be rushed so the fitters aren't unduly stressed so they can do their job properly and to a standard that they are content with.

No hidden extras; in our experience the price given is honoured even if unforeseen difficulties are encountered during the work, and if it takes a little longer than anticipated to get the job right then that is what happens. We spoke to several mainstream companies and also local suppliers before settling on Derwent - the level of info they provide in their quotation is above and beyond that provided by anyone else.

Others varied from 'the back of a fag packet' to tons of paperwork which actually gave very little detail of what was actually being provided, and of course followed by the 'hard sell'. We got none of that from Derwent. By the time the work was finished saying thanks and goodbye to Ian, our prime fitter throughout, was like bidding farewell to a good friend! The problem we have now is that our soffits, fascias & gutters need to be replaced to match but they have set the bar so high its going to be difficult to find a company with equivalent standards. Of course they are not the cheapest but that really depends on where your priorities lie - price or quality?

We had a 'Timber Windows' front door with side panels and top light, a back door and an Evolution casement bathroom window fitted. The quality of the windows and doors was second to none. I had obtained quotes from other companies and although Derwent windows were more expensive than most, you definitely get what you pay for and I am so glad that I decided to use this company. Customer service was friendly and efficient and Jan was extremely helpful in answering my questions and making changes to my order along the way as I kept changing my mind!

The fitters were friendly and professional and worked hard to get the job done. They created very little mess and tidied up after themselves. They removed our old doors and window very carefully avoiding any damage to external render and internal decoration. All in all we are delighted with the finished result.

We have recently had the windows on the front of our house replaced by Derwent Windows. Callum and Ben were first rate fitters. They worked incredibly hard with attention to detail. They left the site spotless. We have used the company before and will use them in the future. The quality of the Windows is excellent. Thank you Derwent!

Just had a door fitted today by Derwent Windows , the service and workmanship is exceptional, I would highly recommend this company