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Westminster, with its iconic landmarks and historic architecture, is home to many properties featuring traditional sash windows that contribute to the borough’s distinguished character. These windows are a significant aspect of Westminster’s architectural heritage, adding charm and historical value to local homes. Our team specialises in the repair and restoration of sash windows, addressing common issues such as draughts, rattles, and broken cords with expert precision. We start with a thorough inspection to identify any problems, followed by a tailored repair plan designed to restore your windows to their optimal condition. For properties needing more extensive work, we offer comprehensive restoration services, including replacing worn or damaged components with precise replicas to maintain the historical authenticity of your sash windows. Additionally, our draught-proofing solutions improve energy efficiency and comfort while preserving the traditional appearance of your windows. Choose our services to ensure that your Westminster property retains its distinctive beauty and functionality, reflecting the borough’s rich historical and architectural significance.
We pride ourselves on offering free, expert advice to all our clients, including those with properties in conservation areas and Grade I listed buildings. We understand that working on heritage homes requires careful consideration and informed decisions. You can trust us to provide honest, knowledgeable guidance with no obligation
We are proud to operate a local workshop. Being local allows us to maintain strict quality control of our sash windows, offer personalised service, and ensure timely completion of work. It also means we are easily accessible for consultations and support, providing our clients with the confidence that they are working with a nearby team dedicated to their satisfaction.
Westminster is at the very heart of London, home to some of the country’s most historic and architecturally significant buildings. From elegant Georgian terraces and Victorian townhouses to Grade I listed landmarks and embassies, the area showcases centuries of fine craftsmanship and design. Many of these properties feature original timber sash windows and solid wooden doors that require specialist care to preserve their beauty and performance. At Traditional Sash Windows and Carpentry, we provide expert restoration, repair, and bespoke joinery services that help Westminster homeowners and property managers maintain these important architectural details while improving energy efficiency and comfort.
Our team has carried out work across Westminster and the surrounding districts, restoring period joinery in private residences, embassies, and listed buildings. Every project we undertake combines traditional craftsmanship with modern materials to deliver results that are both authentic and built to last.
Sash windows are a defining feature of Westminster’s grand townhouses and heritage properties. They bring symmetry, light, and elegance to the area’s façades, but many have faced decades of wear. Common issues include swollen frames, broken cords, and decayed timber caused by pollution and changing weather. Our sash window restoration service offers a complete solution, repairing and rejuvenating these timeless features while preserving their traditional design.
Each window is carefully dismantled and inspected before repairs begin. We replace damaged timber with matching hardwoods such as Accoya or Red Grandis and re-cord, balance, and reassemble each sash for smooth operation. To enhance comfort, we install discreet brush seals that prevent draughts without altering the original appearance. For homeowners who want greater insulation and noise reduction, we also offer double-glazed sash replacements and secondary glazing that blend seamlessly with the property’s period look.
A handcrafted wooden door adds both security and elegance to a home. In Westminster, where architectural details matter, we design and build bespoke wooden doors that complement each property’s unique style. Whether your home features a Georgian panelled entrance, a Victorian glazed design, or a modern timber door inspired by traditional forms, our joinery is tailored to your exact specifications.
Each door is handmade in our Kent workshop using sustainably sourced timber and traditional mortise and tenon joints for exceptional durability. We also refurbish existing doors, repairing frames, adjusting hinges, and applying protective finishes that ensure long-term resistance to London’s varied weather conditions. Every door we create or restore is designed to look authentic, operate smoothly, and stand the test of time.
Older properties in Westminster, particularly those with original sash windows, can suffer from draughts and heat loss. Our draught-proofing service provides a discreet and highly effective way to improve comfort and reduce energy bills without altering your home’s appearance. We install slim brush seals into the existing window frames, creating an almost invisible barrier that stops cold air entering and prevents warm air escaping.
The result is a noticeable improvement in room temperature, reduced condensation, and quieter interiors. Draught proofing can be combined with a window overhaul or as part of a complete restoration. It’s a cost-effective way to modernise your home while maintaining the character and authenticity of its original joinery.
At Traditional Sash Windows and Carpentry, we combine traditional craftsmanship with modern precision. Every piece of joinery we make or restore is handled by skilled joiners who have decades of experience working on heritage buildings. We use time-honoured techniques, including mortise and tenon joinery, alongside advanced coatings and materials that protect the timber for decades.
Our preferred timbers, such as Accoya and Red Grandis, offer unmatched stability and resistance to decay, making them ideal for London’s climate. Each window and door is hand-finished and painted using breathable coatings that prevent moisture damage while preserving the natural grain of the wood. We pride ourselves on achieving results that not only look beautiful but also perform flawlessly.
We provide our full range of services throughout Westminster and neighbouring areas such as Pimlico, St James’s, Belgravia, and Mayfair. Each district has its own architectural character, and our work is tailored to suit the individual property. From restoring the delicate glazing bars of a listed Georgian townhouse to crafting new timber frames for a Victorian mansion flat, we bring the same care and precision to every project.
As a family-run company, we take a personal approach to every job. Our communication is clear, our quotations are transparent, and our workmanship speaks for itself. We are proud to have built lasting relationships with clients across London who trust us to deliver high-quality, authentic joinery.
Sustainability is central to everything we do. We use timber sourced from certified suppliers and prioritise restoration over replacement whenever possible. By repairing original windows and doors, we help preserve the craftsmanship of the past and reduce environmental impact. When new joinery is required, we build it to last for generations, using the finest materials and techniques.
Accoya, one of our primary materials, is exceptionally stable and resistant to rot, providing a lifespan far longer than standard softwoods. Combined with modern protective coatings, this ensures every window and door we produce is durable, low-maintenance, and environmentally responsible. Our work represents an investment in quality and sustainability.
Working in Westminster means working with some of the most protected and historic buildings in the country. Our team understands the complexities of listed and conservation-area properties, ensuring that every project complies with relevant regulations. We can replicate period details with accuracy, matching glazing bars, mouldings, and profiles to the original design.
We liaise with surveyors, architects, and conservation officers where required to ensure the process runs smoothly and the finished work respects the building’s history. Whether we are restoring a single sash window or refurbishing a full set of doors and frames, our craftsmanship preserves Westminster’s architectural integrity for future generations.
Clients across Westminster choose Traditional Sash Windows and Carpentry for our reputation, reliability, and deep respect for heritage craftsmanship. We understand the importance of detail, precision, and professionalism when working on properties of historical and architectural significance. Our team delivers bespoke solutions, combining skill and care to achieve exceptional results.
We are trusted by homeowners, landlords, and property managers for our transparency, punctuality, and commitment to excellence. Every project we complete is built to the highest standard, ensuring lasting beauty and performance.
If your sash windows or wooden doors in Westminster are in need of restoration or replacement, we would be delighted to assist. We offer free consultations and site visits across Westminster and Central London. Our expert team will assess your joinery, discuss your goals, and provide a clear, no-obligation quote.
Enhance your Westminster property with expertly restored sash windows, bespoke wooden doors, and handcrafted joinery made to last. Contact Traditional Sash Windows and Carpentry today to arrange your free consultation and discover how our craftsmanship can preserve and elevate your home or building.
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We repair, restore and replace traditional timber windows and doors across Kent and London. Our work includes sash window overhauls and draught proofing, timber resin repairs, replacement sashes, new box sash windows, casement window repairs, secondary glazing, double glazed sash windows, wooden door repairs, replacement doors and bespoke joinery.
Where possible, we always aim to repair and retain original timber windows. Many older sash windows can be brought back into good working order with careful timber repairs, replacement sections, new cords, pulleys, beads, glazing repairs and draught proofing. Full replacement is usually recommended only where the existing frame or sashes are beyond economical repair, or where a customer would benefit more from entirely new joinery.
Yes. Our sash window overhaul and draught proofing service is designed to reduce rattling, draughts and heat loss while preserving the character of traditional windows. We can also discuss slimline double glazing, standard double glazing where suitable, secondary glazing and Fineo vacuum glazing, depending on the building, existing joinery and planning requirements.
Yes. We regularly work on period homes, listed buildings and properties within conservation areas. Our approach focuses on retaining as much original timber and architectural detail as possible, using traditional joinery methods alongside modern repair materials where appropriate. We can produce like for like replacement components, including mouldings, glazing bars, curved heads and bespoke sash profiles.
The right timber depends on the property, design and budget. We commonly use Accoya, Sapele and European Oak, along with other suitable hardwoods and softwoods where required. Accoya is a popular choice for painted external joinery because it is highly stable and durable, while Sapele and Oak can be well suited to particular repairs, doors and specialist joinery details.
Our repairs and new joinery are supplied properly prepared and undercoated where required, ready for final decoration. We do not generally provide the final painting service, as this is best completed by a dedicated decorator once the timber has fully settled and any surrounding finishes have been prepared. We will always explain what stage the joinery will be left at before work begins.
We offer surveys and quotations for suitable projects across Kent and London. During the visit, we assess the condition of the windows, doors or joinery, discuss the options available and explain the likely repair or replacement work involved. For some smaller jobs, clear photographs and measurements may be enough for us to provide an initial estimate before arranging a site visit.
This depends on the number of windows, their condition and the level of repair needed. A straightforward overhaul and draught proofing job can often be completed in a day, while larger restoration projects, replacement sashes or full house installations may take longer. We will provide a clear programme before work starts so you know what to expect.
Yes. Traditional Sash Windows and Carpentry is fully insured and CERTASS certified, giving customers added confidence that their project is being completed by an experienced and properly accredited team. CERTASS certification allows us to self certify qualifying replacement window and door installations, helping ensure the work meets current Building Regulations requirements without the need for the customer to arrange separate Building Control approval. Once the installation is complete, the relevant certification can be provided for applicable work.We also hold appropriate public liability insurance for the work we carry out, including sash window repairs, replacement timber windows, wooden doors, glazing and bespoke joinery.
Yes. We supply and fit bespoke secondary glazing for sash windows, casement windows and other traditional timber windows throughout Kent and London. It is a practical way to improve warmth, reduce outside noise and limit draughts without removing or altering the original joinery.Secondary glazing is fitted internally, creating an additional barrier behind the existing window. This makes it especially useful for period homes, listed buildings and conservation areas where replacing original windows may not be appropriate. We can advise on discreet systems that suit the style, layout and day to day use of your windows, including horizontal sliding, vertical sliding, hinged and fixed options where suitable.
Traditional Sash Windows and Carpentry works throughout the whole of Kent and London, including Ramsgate, Broadstairs, Margate, Canterbury, Whitstable, Herne Bay, Deal, Sandwich, Dover, Folkestone, Maidstone, Tonbridge and surrounding areas. We also take on selected projects further afield where the scope of work is suitable.
Last updated 2026-03-03
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