Wooden Timber Windows, Doors and Stairs
High Quality, Long Life, Bespoke

Investor In People

We have been making joinery in Donington, South Lincolnshire since 1884. We have a highly trained workforce accompanied by a modern apprenticeship scheme. We are recognised as an investor in people.

BWF Timber Window Accreditation Scheme

As members of the British Woodworking Federation Timber Window Accreditation Scheme, our design and production methods have been found to produce windows that meet the highest standards of performance. By exceeding all of the criteria that this scheme demands, we can be confident that we are supplying our customers with the highest quality, long life, low maintenance windows and door sets.

BSI Kitemark

Certification to the TWAS enables us to display the BSI British Standard Kitemark on our products. The Kitemark indicates that all products are produced in accordance with the requirements of the TWAS and that they have been tested to the highest standards. This ensures our products are safe to use and will fit the purpose to which they have been designed. It offers peace of mind to our customers by reducing the possibility of product failure.

ISO 9001:2000

George Barnsdale & Sons Ltd conforms to the ISO 9001:2000 accreditation which was achieved on the 2nd March 2005. This is a commitment to produce a quality product using a quality management system, which improves communication, customer satisfaction, efficiency and reduces wastage.

All energy rated windows of 'C' and above that George Barnsdale & Sons design, manufacture and install are recommended by the Energy Savings Trust.

Riba Product Selector

George Barnsdale & Sons are part of the RIBA Product Selector which is a high quality specification directory used by architects.

British Fenestration Rating Council

George Barnsdale can produce BRFC approved thermal simulations in house. This means thermal performance is designed into all windows. High thermal performance of timber windows has a great effect on long term energy costs. We were the first in Britain to achieve an 'A rated' window and have continued to design windows with the best performance without the need to use expensive and unattractive triple glazed units.

The use of the NBS Plus scheme allows us to produce a standardised specification, which is up to date and easy to access and use.

NBS Plus is a library of building product manufacturer details linked to clause guidance in the National Building Specification (NBS) software - used by over 18,000 specifiers in over 5,000 subscribing offices.

Wood For Good

Wood. for good is a generic wood campaign, which started in 2000.