8-10 week supply & installation lead time

10 year warranty, 60 year life expectancy

Designed by you, made to measure by us

98% of our customers would recommend us

Whole window U-values as low as 0.8W/m2K

With the building being Grade II listed it was very important that the design of the new windows matched the original frames as closely as possible. Upon researching a number of timber window companies the family approached Bereco in the knowledge that we have supplied our wooden windows and doors to many listed properties over the years including the local Thrum Mill. The family were then introduced to our local suppliers Blackthorn Timber Windows who had experience of listed properties and were ideally placed for undertaking such a historic restoration.

Upon visiting our property, Lee from Blackthorn Timber Windows really understood our needs and it became clear his knowledge, combined with the timber windows manufactured by Bereco were of an excellent quality. The time and effort from Lee shouldn’t be underestimated. His experience and attention to detail, backed by great customer service was pivotal. This made our decision a lot easier.

Bereco FSC 100% Hardwood traditional lipped casements and lipped French doors were chosen for this period property. 35mm horizontal bars were used to replicate the solid design of the original windows and were factory finished with a deep rosewood satin stain finish that creates a warming contrast with the natural stone of the building.

dark stained lipped casement windows
Converted barn with dark stained timber windows and doors

“The quality of our new windows, combined with care taken on installation really shows and helps enhance the natural look and appearance of our property. Recommend for future? Absolutely.”

This property dates back over 300 years and was once part of a main hall and farm settlement that the local council auctioned off for conversion & renovation. This particular barn, that the family were fortunate enough to secure, was originally built to house cattle in and their primary objective throughout the renovation was to create a family home, in a private setting, whilst retaining as many existing features as possible, keeping the buildings heritage and character.

A Bit About Blackthorn Timber Windows
Blackthorn Timber Windows specialise in the supply and installation of timber windows, doors and conservatories for all types of property. From traditional sliding sash windows to folding sliding doors, cottage-style windows to modern reversible casements. Whether your home is urban or rural, Victorian or 21st Century, they have the windows and doors to suit it.

With bases in the North-East and Yorkshire, Blackthorn Timber Windows has gained an enviable reputation for the high quality windows and doors and for the skill and attention to detail of their installation teams. Offering installation services from North Derbyshire right up to Edinburgh, including the whole of Yorkshire, Co. Durham, Tyne & Wear, Northumberland, Cumbria, South-West Scotland and up through the Borders.

The experts in timber windows and doors

Whether you’re a homeowner working on a renovation project for your home, an architect looking for specific windows and doors, or a trade professional building new homes and properties, we offer a tailored service to help you budget, design, and order bespoke timber windows and doors.


Want to get hands on?

Order corner samples of popular products including stain, ironmongery and bars delivered straight to your front door.

Order Product Samples

A really good company to deal with. Very helpful team of people from sales, technical support and delivery. Any time I called, I did not have to wait to speak to the right person and help was immediate. So not only great customer service but also terrific products, well designed and exact fit. Competitively priced.

Graham Roberts

I was very happy with Bereco’s service levels and the products are excellent, very good quality. I would have no hesitation in recommending them to others.

Simon Hazelton

Beautifully constructed windows which do the job perfectly. Handled Covid disruption effectively. Installation went smoothly. All in all a job very well done. Would recommend without reservation.


Visited the showroom last year and impressed with the finish and quality. Just as delighted with the windows and back door that we ordered. They look fabulous.


Our memberships & schemes

As a dedicated manufacturer of quality timber windows and doors, we are part of a number of specialist memberships and schemes. Check out the full list below.

The Anti-Greenwash Charter logo
ASBP logo
BlueSky Certification logo
FSC and Forests For All Forever
Good Homes Alliance logo
Secured by Design certificate
World Land Trust logo
Graphic of FENSA certificate

As seen in...

We’re pleased to announce our brand has featured in several national magazines and publications over the years. Here are some of the most recent places our products have been showcased.

The Times logo
Grand Designs Magazine logo
House and Garden logo
Homebuilding & Renovating logo
Construction Forum Magazine logo
Architects' Journal
Improve logo
Showhouse logo

Sign up to our newsletter.

Sign up to our mailing list and be kept up to date with our latest news, promotions and inspiration for your next project.