YOUR JOB IS TO CREATE SOMETHING BEAUTIFUL, AND OUR JOB IS TO HELP YOU DO IT.
Heritage, historic, conservation, and listed buildings require more than windows and doors – they demand quality that stands the test of time. Individual nuances that hint at its bygone era. And craftsman who understand these requirements inside-out.
George Barnsdale has created bespoke timber windows and doors to complement some of the most iconic heritage buildings and high-end projects in the UK.
We have an incredibly broad range of products and options to provide that truly customisable solution for your project. And every single one of our windows and doors are meticulously made and come with unrivalled support, expertise and technical know-how, from plans to completion.
ENGINEERING INNOVATION FOR LASTING BEAUTY AND DURABILITY.
We have always led the way in developing innovative fenestration solutions. From our involvement in the establishment of the first British Standard (BS644) in the 1930s to our involvement with the BRE, as well as many other pan-European research projects today, there are few people in the industry with more knowledge.
We continue to invest in new technology to meet the needs of our customers, enabling them to handle complex conservation projects without compromise. Bringing listed buildings back to their former glory with long-life, low-maintenance systems, specially sourced timber, and climate controlled four-coat paint application – tested and certified for high-performance operation.




TRANSFORMED AND ENHANCED.
Welcome to the George Barnsdale Case Studies section. Here you’ll experience the beauty of our timber windows and doors in-situ, gracing historic commercial properties, and sympathetically designed for heritage and period properties, for large development projects.
Case studies


Originally a 1930s art deco property, Twenty Berkeley Square is aimed at a clientele that is used to the finer things, including bespoke concierge services and high-quality interior design. When Steve Dixon, Director at George Barnsdale, was approached about the project to produce and install 129 sliding box sash windows, he understood how to develop the correct solution, having already worked on a number of listed buildings requiring sign off by Westminster Council’s Conservation Team.
Working with us in the past on previous projects, Barr Gazetas understood the need to balance aesthetics with performance. Our Grandis Hardwood windows were crafted to complement the style and period appearance of the original windows and building, whilst also meeting the high-performance attributes required for modern-day compliance.
Key details
Product Details – Sliding box sash windows
Glazing – 4mm Float / 20 Arg / 4mm Float-1.0 with a White Warmedge
spacer, 4mm Tough / 20 Arg / 4mm Tough-1.0 with a White Warmedge spacer
Timber – Grandis Hardwood (FSC certified)
Paint – Traffic white – RAL 9016
Hardware – Polished brass
Architect – Barr Gazetas


Grade II listed and made up of 15 stucco-fronted houses dating back to the 18th century, The Lancasters in Central London presented some interesting challenges. We manufactured a range of traditional timber box and tilt & slide sliding sash windows, inward opening doors and sliding doors – 800 in total – all made to measure and finished with our high-quality white paint finish.
We liaised with architects to design timber doors and windows that would complement the period and French Renaissance style of the building. Subsequently, as The Lancasters is a listed development, we had to seriously consider the aesthetics of the wood as well as its performance, stability and natural durability. The door frames and windows, therefore, were manufactured from Redwood WoodHeart®, an x-ray selected engineered timber, a similar species to the original timber used by the Victorians. Whilst engineered Red Grandis Hardwood was used for the production of the doors for natural durability and long term performance.
Key details
Product Details – Timber box and tilt & slide sliding sash windows
Timber – Grandis Hardwood and Redwood WoodHeart® (FSC certified)
Paint – Traffic white – RAL 9016
Architects – Nilsson/Northacre
Customer – Woolf Ltd
Steve Dixon provided excellent tender/design advice prior to George Barnsdale being awarded the contract. This really helped the designers meet the Grosvenor Estates specification.Connor O’Keeffe, Project Manager, Kier
We have used George Barnsdale windows for a number of properties over the last 15 years, and they have stood the test of time against harsh weather conditions.Sarah Thompson, Property Developer
George Barnsdale’s commitment to quality and craftsmanship is evident in every aspect of the products and service they provide.John Richards, Architect
CONTACT US
Whether you’re an Architect or Contractor about to embark on a new major heritage project, talk to us first about bespoke timber windows. Simply contact us now using the form below.












