Sign up to our next CPD webinar, ‘Glazing in Heritage Buildings: Balancing Performance, Conservation and Compliance‘, on Wednesday 7th October, 11am-12pm, where we explore the glazing options available for traditional and heritage properties, examine their suitability in different project contexts, and understand how glazing selection can influence performance.
We’ve been manufacturing state-of-the-art timber windows and doors since 1884. As a family business, we believe in building lasting partnerships to deliver products that exceed expectations and a service that goes above and beyond.
George Barnsdale stands as the epitome of luxury and craftsmanship, seamlessly blending tradition with innovation to deliver bespoke windows and doors tailored to the unique needs of our discerning clientele.
With a rich heritage dating back to 1884, our commitment to quality and authenticity is unparalleled, resonating with customers who value heritage and legacy in their purchases. From personalised problem-solving and engineering-led innovation to British-manufactured excellence, we offer a holistic experience that embodies the essence of bespoke luxury, setting us apart as the premier choice for those seeking uncompromising quality and timeless elegance in their architectural investments.
We have decades of experience working with some of the UK’s leading contractors, developers and architects to deliver custom timber windows and doors for projects of all sizes.
We combine our love for characterful buildings with our passion for innovation, to manufacture high-performance, hand-crafted timber windows and doors for new build and heritage properties.
We have decades of experience working with some of the UK’s leading contractors, developers and architects to deliver custom timber windows and doors for projects of all sizes.
With our expert team available to conduct thorough site surveys, we can support you from the very beginning of your project, helping you provide accurate measurements for the quotation stage and spot potential challenges along the way.
Whether you need a quick answer to a question, or an in-depth consultation, our team of experts are available to support you every step of the way.
We offer an in-house installation service for commercial projects. Our team of experienced installation staff have worked on some of the most prestigious timber windows projects in London.
We have a talented and experienced project management team who invest time into supporting you at every stage of the project to ensure you meet project timeframes and adhere to specific project requirements.
We’re timber window and door specialists, and we’re proud of the knowledge, innovation and care that goes into every single product we make. Every day we’re pushing ourselves to be better than the day before.
We are a family business with a long-standing culture of preserving architectural heritage and the unique building styles endemic to the UK. We foster a balance of cutting-edge mechanisation that guarantees performance and a tailored approach that allows for a fully bespoke offering. We are a national brand with a local approach to manufacturing and delivery.
Within this Case Studies section you will find a catalogue of work to inspire. From the replacement of timber windows and doors in family homes through to customised designs for luxurious and mixed-use sites, we work with clients to provide the best possible solution.
As part of its commitment to supporting architects and specifiers with their professional development, George Barnsdale is pleased to announce the date of its upcoming CPD webinar, ‘Glazing in Heritage Buildings: Balancing Performance, Conservation and Compliance’, which will take place on Wednesday 7th October at 11am.
The specification of glazing in heritage and historic buildings requires architects to balance conservation principles with modern performance expectations. This CPD will explore the glazing options available for traditional and heritage properties, as well as examine their suitability in different project contexts, to help attendees gain an understanding of how glazing selection can influence performance whilst considering planning and conservation requirements.
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Timber is the term typically used for wood that is used in construction. Although all timber is wood, not all wood can be classed as timber, as it needs to meet certain standards in order to be used in the construction of windows, doors, and even buildings. In order to be used for house beams, panels, and other building purposes, the timber used must be durable, high quality, and have been properly prepared.
In short, timber is a structural material, whereas wood is an umbrella term which covers all manner of materials that come from trees — not all of which are suitable for construction.
There are a number of reasons why people prefer timber windows and doors over other materials like UPVC. Here are just a few:
Timber is a natural insulator and when coupled with high performance glass, offers excellent insulation against heat loss. In the design of our product range, we strive to optimise this natural potential. We were the first UK timber window and door manufacturer to produce an A rated timber window, and are dedicated to having the widest range of energy rated timber products in the country. As well as excellent thermal performance, we design our products to last with little maintenance. This means that the production inputs are recovered many times over.
Find out more about our commitment to sustainability here: https://www.georgebarnsdale.co.uk/sustainability/
Vacuum, double and triple glazing all improve thermal performance, but they achieve it in different ways.
The most appropriate solution depends on the requirements of your project, including energy performance targets, acoustic performance, planning considerations and aesthetics. Our team can help you select the right glazing specification for your building.
Yes. We can provide NBS specifications, CAD drawings and detailed technical information to support architects, specifiers and contractors throughout the design and procurement process.
Our technical team can assist with specification writing, product selection and compliance requirements, helping to ensure the right timber windows and doors are specified for your project’s aesthetic, performance and heritage needs. We can also provide project-specific details where required, making it easier to integrate our products into your designs and tender documentation.
We also have a series of products listed on NBS Source, which allows you to add our products directly to your specifications.
Approved Documents Part O, Part L and Part F set requirements for overheating, energy efficiency and ventilation in both new-build and refurbishment projects.
When specifying timber windows, these regulations can influence factors such as glazing performance, window size and opening configurations, solar gain, U-values, air tightness and ventilation provision. Meeting these requirements is essential to ensure a building is comfortable, energy efficient and compliant with current Building Regulations.
Our team can provide guidance during the specification process and recommend suitable window and door solutions to help your project achieve compliance without compromising on aesthetics or heritage requirements.
For large commercial projects, we provide a full supply and installation service. For homeowners, installation is carried out by our network of approved partners, who are experienced in fitting George Barnsdale timber windows and doors.
This ensures every project benefits from high-quality installation and expert product knowledge.
Yes, but the requirements depend on whether your property is listed, located within a conservation area, or both.
For listed buildings, replacing windows will usually require Listed Building Consent, particularly if the proposed changes affect the building’s character or historic significance. Local authorities often prefer replacement windows to closely match the original design, materials and detailing.
For properties within a conservation area, planning permission may not always be needed for a like-for-like replacement, but restrictions can apply, especially where Article 4 Directions are in place. These rules are designed to preserve the area’s historic appearance and architectural character.
In many cases, it is possible to upgrade performance standards while maintaining a traditional aesthetic. Timber windows can often be designed to replicate historic sightlines and detailing while incorporating modern glazing to improve energy efficiency, comfort and security.
Before replacing any windows, it is advisable to check with your local planning authority or conservation officer to understand the specific requirements for your property.
Need guidance? Our team regularly works on heritage, listed and conservation area projects and can help you find a compliant solution that balances historic character with modern performance.
Find out more here
High-quality timber windows can last for many decades, making them a long-term investment for both traditional and contemporary properties. Their longevity depends on factors such as the quality of the timber, factory-applied finishes, installation and ongoing maintenance.
To keep timber windows performing at their best, we recommend regular cleaning and periodic inspections of the paint or stain finish. Any areas showing signs of wear should be addressed promptly to protect the timber from the elements. With the right care and maintenance, timber windows can provide excellent durability, performance and appearance for generations.
Founded in 1884, George Barnsdale is a family run business manufacturing high-performance timber windows and doors in Donington, Lincolnshire and offering a nationwide project management and installation service.
© 2026 George Barnsdale | High Street Donington, Spalding, Lincolnshire PE11 4TA | Phone: 01775 823000
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