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Bespoke Sash Windows Designed Around the Property

Hardwood Timber Sash Windows

When you invest in a heritage home, you expect the windows to reflect its age, quality and character. That’s why more South West London property owners are choosing hardwood timber windows built to bespoke specifications, ensuring every profile, rail and bar layout reflects the original.

Bespoke sash windows offer the freedom to design around the property, rather than force the home to adapt to an off-the-shelf solution. This is especially important in places like Putney, Clapham and Battersea where conservation conditions and buyer expectations are high.

One Wimbledon renovation project involved replacing 17 ageing sashes across a listed Georgian property. The existing windows varied in size and shape, with inconsistent bar layouts from decades of repairs. Our bespoke service allowed us to restore visual symmetry across the elevation while enhancing comfort and energy efficiency with slimline glazing and draught-proofing.

From an architectural perspective, bespoke sash windows enable complete control over finish, frame depth, and even architrave detailing. This allows seamless integration into period brickwork, render or stone surrounds, maintaining harmony across the façade.

Developers working on multi-unit restorations also benefit from consistency. When manufacturing for larger projects, bespoke units ensure all windows align in profile and operation, even if internal dimensions vary.

Each frame is manufactured to exact millimetre tolerances and finished with factory-applied coatings for a uniform appearance. Whether painted in heritage white or modern grey, the finish remains durable for years.

Bespoke joinery also supports upgrades to safety and security. Lockable fasteners, sash restrictors and laminated glass can all be integrated without affecting the window’s aesthetic. This allows you to meet family safety and insurance requirements while still preserving traditional looks.

Buyers notice the difference. Properties that retain or replicate original details consistently achieve higher sale values and faster market turnover. In high-demand areas like Wandsworth and Wimbledon Village, details like sash window quality are a clear signal of how much care has gone into the renovation.

Every home is different—and so is every opening. That’s why our team works with clients from design through to delivery, ensuring a precise match that respects the history of the home while future-proofing its performance.

Explore the benefits of fully customised hardwood timber windows that offer beauty, accuracy and long-term return on investment.

What is the delivery time for bespoke sash windows?

Typical lead times for bespoke timber sash windows range from 6 to 10 weeks depending on the specification, volume, and finish. During peak construction periods, this can extend slightly. Developers working across South West London often plan phased deliveries to match project stages. We provide detailed schedules and support on logistics, especially when access, scaffolding, or restricted working hours must be factored in.

Can sash windows be repaired after paint failure?

Yes. Paint failure on timber sash windows—often visible as flaking or blistering—can be resolved with proper sanding, priming, and repainting. If paint is failing due to underlying moisture issues or poor ventilation, additional investigation is needed. In Streatham or Wandsworth, where homes are exposed to damp conditions, we recommend microporous paints and moisture-repellent treatments. With prompt action, paint damage can be resolved without impacting structural integrity.

Do sash windows come with acoustic certification?

Yes, acoustic-certified sash windows are available and commonly specified in developments near transport routes, schools, or main roads. In Clapham and Battersea, homeowners often upgrade to acoustic glazing to reduce noise from busy streets. These certified units are tested to meet specific decibel reduction targets and can be tailored with double or laminated glazing. Developers benefit from including acoustic sash units to boost buyer confidence in high-density projects.