UK’s Leading Bespoke Timber Box Sash Window Specialists- Trade & Residential Suppliers!

Who We Are

Kingswood Joinery UK Ltd are specialist manufacturers of bespoke timber box sash windows. Established in 2006, we supply both trade professionals and residential homeowners directly from our workshop
Alongside our timber sash windows, we also manufacture bespoke timber casement windows and handcrafted external timber doors, with every product made to order and tailored to your exact specifications.
Our factory is fully equipped with state-of-the-art machinery and operated by highly experienced craftsmen, allowing us to manufacture premium quality timber products efficiently and competitively without compromising on workmanship, detail or finish.
By specialising in bespoke timber joinery and manufacturing directly, we are able to offer homeowners, builders and trade customers exceptional quality products at highly competitive prices.

Where To Find Us

We work throughout London, Essex, Kent and the surrounding counties. We also work throughout the UK on special projects. Why don’t you contact us on 0207 702 0000 to see if we can work in your area?

Undercoated & Primed

£880 + VAT

Any size softwood box and sashes with a hardwood cill includes:

  • Double glazed toughened glass
  • Pulley wheels
  • Steel weights or Spiral balancers
  • Fully draught excluded
  • Concealed trickle vents

(Supply Only)

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Fully Finished

£1250 + VAT

Any size softwood box and sashes with a hardwood cill includes:

  • Double glazed toughened glass
  • Pulley wheels
  • Steel weights or Spiral balancers
  • Fully draught excluded
  • Concealed trickle vents
  • RAl colour of your choice
  • Ironmongery from our standard range collection

(Supply Only)

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Hand Crafted Windows and Doors

For over a decade, we have been delivering quality windows and doors to both domestic and commercial customers in the UK. With a team of City & Guilds qualified joiners highly skilled in timber craftsmanship, we are able to offer various wood grain options including Hardwood and Softwood. By using state-of-the-art machinery combined with traditional joinery techniques, you can count on our team to meet the highest possible standards.

As a customer-focused company, we strive to achieve 100% client satisfaction. From your initial call with a member of our friendly team to the completion of your installation by a professional fitter, you can expect outstanding customer service at all times. Whether coming to us for wooden sash windows, casement windows, casement doors or wooden bi-folding doors, the service always remains the same – first rate.
Sash Windows in North London | Sash Windows in East London |
Sash Windows in South London | Sash Windows in West London |

Why Choose Kingswood Joinery UK Ltd?

  • Reliable team of registered FENSA installers and City & Guilds qualified joiners
  • Established, family-run company serving London and the surrounding counties
  • Over 150 years of combined experience and superb attention-to-detail
  • Leading manufacturer of wooden sash windows and wooden bi-fold doors
  • Specialists in high-quality, timber casement doors and casement windows
  • A customer-focused company which takes pride in the service we provide
  • Products come with a 5-year guarantee and we are fully insured
  • Hand crafted products available in a wide range of styles and designs

We endeavour to serve as much of London and the surrounding counties as possible, with Camden, Chelsea, Fulham, Hammersmith, Holloway, Kensington, Richmond, Twickenham, Wandsworth and Wimbledon, being just a few of the many locations our company covers.

FAQ’S

Frequently Asked Question’s

Wooden sash windows offer timeless character and traditional appeal, making them an excellent choice for Victorian, Georgian and period homes. Modern designs can also deliver improved insulation, security and weather resistance while retaining an authentic appearance.

Yes. Modern wooden sash windows can be fitted with energy-efficient double glazing, draught-proofing and high-quality seals. Together, these features help minimise heat loss, reduce draughts and create a more comfortable indoor environment.

Absolutely. Many sash windows can accommodate slim-profile or modern double-glazed units, depending on the design and dimensions. Upgrading the glazing can improve thermal performance, reduce outside noise and enhance everyday comfort.

They can be, although listed buildings and properties within conservation areas may have specific planning requirements. Original proportions, glazing patterns and traditional features may need to be preserved, so checking local requirements before replacement is recommended.

Regular care helps keep wooden sash windows looking their best and performing reliably. Repainting or staining when required, checking seals, keeping drainage channels clear and repairing minor damage early can help prevent moisture-related problems.

Yes. Wooden sash doors can be customised to complement your property’s architectural style. Options may include different glazing patterns, colours, hardware, sizes and decorative details, allowing you to create a cohesive look throughout your home.

Modern designs can provide strong security alongside traditional aesthetics. Features such as multi-point locks, secure hardware, laminated or toughened glass and reinforced construction can help provide greater protection and peace of mind.

The right option depends on their overall condition. If the frames remain structurally sound, draught-proofing, glazing upgrades and repairs may restore performance while preserving their original character. Replacement may be more suitable where there is extensive deterioration or structural damage.