Case Study: Premium Timber Windows and Doors for a Luxury Flat in St John’s Wood, London
Handmade external windows, doors, sash windows and internal hardwood doors for a high-end London refurbishment
H&C Joinery manufactured a wide range of bespoke timber windows and doors for the refurbishment of a luxury flat in St John’s Wood, London.
The project included handmade external windows and doors, sliding sash windows, large fixed glazed screens and flush casement windows, all produced with intricate moulding details designed to match the original character of the property.
Alongside the traditional external joinery, H&C also manufactured a modern contemporary European oak garden room extension and handmade hardwood panelled interior doors, creating a complete joinery package for both the outside and inside of the property.
Project Specifications
Project detail | Information |
Project type | Bespoke timber windows, external doors and internal doors |
Property type | Luxury flat refurbishment |
Location | St John’s Wood, London |
H&C role | Manufacture of bespoke external and internal joinery |
External joinery supplied | Sliding sash windows, fixed glazed screens, flush casement windows and external doors |
Internal joinery supplied | Hardwood panelled interior doors |
Additional joinery | Contemporary European oak garden room extension |
Timber used | Hardwood and European oak |
Glazing | A+ rated double glazing |
Finish | Fully factory finished in H&C’s spray shop |
Key requirement | Bespoke joinery matching the original property details while supporting a high-end refurbishment |
Project brief
The refurbishment called for high-quality bespoke joinery that would suit the character, finish and expectations of a luxury London property.
The external windows and doors needed to be carefully made around the original appearance of the building, with detailed mouldings and proportions that would not feel out of place. This was especially important for the sash windows, flush casement windows and fixed glazed screens, where small design details can have a major impact on the final look.
The project also required a broader joinery package, including hardwood panelled internal doors and a contemporary European oak garden room extension.
The brief centred on three practical priorities:
- Manufacture external timber windows and doors that matched the character of the original property.
- Provide a mix of traditional and contemporary joinery for different areas of the refurbishment.
- Deliver a high-quality factory finished result suitable for a premium residential project.
The challenge
This project required H&C to balance traditional detail with modern performance.
The external windows and doors needed to reflect the style of the original property, including intricate mouldings and carefully considered proportions. Standard products would not have offered the same level of design control, especially across a project involving several different types of joinery.
The challenge was not only to manufacture individual items well. It was to create a complete joinery package where sliding sash windows, fixed glazed screens, flush casement windows, external doors, internal doors and a garden room extension all felt considered and appropriate for the property.
There was also a contrast between the traditional external joinery and the contemporary European oak garden room. Each element needed to work in its own setting while still feeling part of a high-quality overall refurbishment.
H&C Joinery’s approach
H&C manufactured the external joinery by hand, including sliding sash windows, large fixed glazed screens and flush casement windows.
The windows were made with detailed mouldings to match the original property as closely as possible, helping the new joinery sit comfortably within the existing architectural style.
The external windows and doors were fully factory finished in H&C’s spray shop. This allowed the finish to be applied in controlled workshop conditions before installation, supporting a more consistent and durable result.
The joinery package included:
- Handmade external timber windows
- External timber doors
- Sliding sash windows
- Large fixed glazed screens
- Flush casement windows
- Intricate moulding details
- A+ rated double glazing
- Factory spray finishing
- Hardwood panelled interior doors
- Contemporary European oak garden room joinery
The use of A+ rated double glazing helped the windows and doors meet modern expectations for comfort and thermal performance, while the handmade timber construction preserved the character and quality expected on a premium refurbishment.
Traditional detail with modern performance
The key strength of this project was the combination of period-sensitive detailing and modern practicality.
The external joinery was designed to respect the existing property, particularly through the moulding profiles and window styles. Sliding sash windows, flush casement windows and fixed glazed screens all needed to look refined, balanced and appropriate.
At the same time, the joinery had to perform as part of a modern home. The A+ rated double glazing helped improve comfort, while the factory-applied finish gave the timber a high-quality painted surface before it reached the property.
The result was a joinery package that combined:
- Traditional timber window styling
- Bespoke moulding detail
- Modern double glazing
- High-quality spray finishing
- Internal hardwood craftsmanship
- Contemporary European oak joinery
- A premium finish suitable for a luxury refurbishment
Why this project matters
The result
The completed joinery helped transform the St John’s Wood flat with a mix of traditional external detailing and high-quality internal timber craftsmanship.
The sliding sash windows, fixed glazed screens and flush casement windows were manufactured to match the character of the original property, while the A+ rated double glazing and factory-applied finish gave the project the performance and finish expected from modern bespoke joinery.
The hardwood panelled internal doors added further detail inside the property, while the contemporary European oak garden room extension introduced a more modern element to the overall refurbishment.
This project is a strong example of H&C Joinery’s ability to manufacture bespoke timber windows and doors for demanding residential projects where detail, finish and architectural sensitivity matter.
specialist replica timber doors and windows
This St John’s Wood refurbishment shows how bespoke joinery can support both traditional and contemporary property design.
For high-end homes, period properties, listed-style refurbishments and character buildings, the right windows and doors need to do more than simply replace what was there before. They need to respect the original building, improve day-to-day performance and deliver a finish that feels properly considered.
H&C Joinery regularly manufactures bespoke timber windows, external doors, sash windows, casement windows and internal hardwood doors for projects where standard joinery would not be good enough.
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Common Inquiries About Our Joinery Services
Can timber windows be made to match the original property?
Yes. Bespoke timber windows can be manufactured with carefully matched mouldings, proportions and opening styles so they suit the original appearance of the property. This is especially useful for period homes, luxury refurbishments and properties where standard products would look out of place.
Are sliding sash windows still suitable for modern homes?
Yes. Handmade sliding sash windows can retain a traditional appearance while using modern glazing, draught control and finishing systems. They are a strong option when the property needs traditional style but better day-to-day comfort.
Can external timber doors and windows include modern double glazing?
Yes. Bespoke timber windows and doors can be made with modern double glazing. On this project, H&C used A+ rated double glazing as part of the external doors and windows package.
What is the benefit of factory finished timber joinery?
Factory finishing allows paint or coating systems to be applied in controlled workshop conditions before installation. This can help create a more consistent finish and better protection than relying only on finishing work carried out on site.