Sash Windows Kensington
We design, manufacture, and install bespoke sash windows across Kensington and the surrounding areas. Our work is tailored to period properties, combining accurate heritage detailing with modern thermal performance. Experienced in conservation areas and fully FENSA registered, we manage projects from survey to installation.
Our Sash Window Services in Kensington
Replacement Sash Windows
Made-to-measure timber sash windows, designed to match original proportions and detailing while improving efficiency.
Sash Window Repairs & Upgrades
Careful repair and overhaul to improve operation, reduce draughts, and extend the life of existing windows.
New Installations
Complete sash window installations for renovations, extensions, and new openings, designed to suit the property.
Double Glazing Upgrades
Upgrade existing or new sash windows with slimline double glazing for better insulation without compromising appearance.
Sash Windows for Kensington Homes
Kensington’s streets are defined by Victorian and Georgian architecture, much of it within conservation areas.
We design sash windows to match original layouts, proportions, and detailing – ensuring each installation sits comfortably within its setting.
Our team understands local planning requirements and can support approvals where needed. From glazing bars to operation, every detail is considered to replicate the character of the existing windows.
Bespoke Sash Windows, Made to Match
Our sash windows are crafted in timber as standard, with alternative materials available where appropriate.
Each window is made to order, designed to reflect the original style of the property. We replicate traditional weight and pulley systems and incorporate slimline double glazing where permitted.
From glazing bars to sash proportions, every detail is carefully matched to achieve a consistent finish. Each project reflects a consistent approach: accurate design, considered installation, and results that sit naturally within their surroundings.
Recent Sash Window Projects in Kensington
At Queens Gate Place Mews, we installed bespoke timber sash windows and doors within a mews setting, balancing traditional styling with improved thermal performance and clean internal finishes.
At Brunswick Gardens, a period property required careful replication of original sash window proportions and detailing, including bay configurations and refined mouldings to match the existing architecture.
At Pembroke Gardens, we delivered a full replacement using heritage-style timber sash windows, maintaining the character of the building while upgrading insulation and usability throughout.
Why Kensington Properties Choose Us
01 FENSA registered, with installations compliant with current building regulations
02 Extensive experience working across Kensington and wider London
03 Specialists in period properties and conservation areas
04 Fully bespoke manufacturing, made to match each property
05 Complete service from survey and design through to installation
06 Consistently strong customer feedback
Other Windows and Doors We Offer
Alongside our specialist sash windows, we supply and install a range of other made-to-measure products.
This includes timber casement windows designed to suit both period and contemporary properties, as well as French and bi-fold doors for improved access and light.
We also offer a variety of glazing options, including slimline and acoustic glass, to meet specific performance or planning requirements.
10-year warranty on upvc windows
10-year warranty on glazing
5-year warranty on ironmongery & seals
FAQs in Kensington
Do I need planning permission to replace sash windows in Kensington?
It depends on the property. Many parts of Kensington fall within conservation areas, where changes to windows are controlled. Like-for-like replacements are often accepted, but material or design changes may require approval. We can advise on requirements and support the application process where needed.
Can sash windows be double glazed in conservation areas?
In many cases, yes. Slimline double glazing is often accepted where it maintains the original appearance of the window. Approval depends on the property and local guidelines. We design windows to meet these constraints while improving thermal performance.
How much do sash windows cost in Kensington?
Costs vary depending on size, specification, and access. Timber sash windows are made to order, so pricing reflects the level of detail and finish required. We provide clear, itemised quotes following a site survey to ensure accuracy.
Is it better to repair or replace sash windows?
This depends on the condition of the existing windows. Sound frames can often be repaired and upgraded, while heavily worn or inefficient units may be better replaced. We assess each window and recommend the most practical option.
How long does sash window installation take?
Installation times vary by project size, but most residential installations are completed within a few days. We plan work carefully to minimise disruption and ensure each window is fitted correctly.
What materials are best for sash windows?
Timber is typically preferred for period properties due to its appearance and flexibility in design. PVCu sash windows are also available, offering a lower-maintenance alternative while still replicating traditional styles.
Get a Quote for Sash Windows in Kensington
We provide a fully bespoke service, delivered to properties across Kensington.
From initial survey to installation, every detail is handled with care. Request a quote, speak to our team, or view our brochure to explore your options today.
