Service
Casement Windows in London
At Repair a Sash, timber joinery specialists working across London, we help homeowners looking for timber casement windows that suit their property and its requirements. Some projects call for entirely new windows. Others are better served by draught proofing and renovation, or by a glazing upgrade that improves performance without replacing the whole frame. Our role is to assess the condition of the windows in front of us and recommend the route that genuinely fits the property.
Casement windows can suit a wide range of London homes, from period terraces and listed buildings to carefully updated properties where traditional character still matters. Whether you are planning a full replacement or simply trying to understand what is possible with your existing windows, we can help you identify the right next step.
Timber casement windows for London homes
Timber remains the natural choice for casement windows across London’s Georgian, Victorian and Edwardian housing stock, and for many later properties as well. For many homeowners searching for wooden casement windows in London, the real priority is not just appearance, but finding a timber solution that suits the property and can be specified properly. It suits traditional proportions, takes detailing well, and can be repaired, renovated and refinished over time rather than treated as a disposable material.
For homeowners with original timber casement windows, or wooden casement windows installed as later replacements, the best solution depends on condition rather than assumption. We look at each property individually rather than pushing a single default solution.
Flush and stormproof timber casement windows
Casement windows may seem straightforward, but the right style and configuration make a real difference to both appearance and performance.
Flush casement windows sit level with the surrounding frame when closed, giving a cleaner, more traditional look that is often well suited to period properties and conservation settings. Stormproof casement windows close over a rebate in the frame, which improves weather resistance and can be the more practical option for exposed elevations or projects where performance is the priority.
Every casement window we make is built to suit the specific opening. In London’s older housing stock, perfectly uniform openings are rare, so made-to-measure joinery is usually the right approach. Where a project calls for wider timber joinery work beyond windows alone, we can also advise through our Bespoke Doors and Windows service.
Our casement window services
We offer three core casement window services, each suited to a different starting point.
New casement windows
Where existing windows are too deteriorated to repair or renovate cost-effectively, or where a project involves a new opening or extension, we design and manufacture complete new timber casement windows to order. This is the right route when existing frames are beyond sensible retention or when you want full control over style, glazing and finish from the outset.
Casement window draught proofing and renovation
Where existing casement windows are basically sound but suffering from draughts, stiff operation, rattling or general wear, draught proofing and renovation can improve comfort and everyday function without the cost of full replacement. This is often the most economical solution for windows that still have years of service left in them.
New double glazed casement windows and renovated frames
Where the frame itself remains in good condition but the glazing is single pane and underperforming, we can fit new double glazed casement windows into the existing renovated frame. This gives you a meaningful upgrade in thermal performance and everyday comfort while retaining the original frame and its relationship to the building.
Designed for period properties across London
A large proportion of our casement window work is in London’s period housing stock, where proportions, glazing bar layouts and frame details matter to the character of the building. The right approach is not just about performance. It is also about making sure the finished window looks appropriate to the property it belongs to.
For homes in conservation areas or listed buildings, casement windows often need an especially careful approach. Requirements vary by property and by local authority, and what is acceptable in one borough may not be acceptable in another. We are used to working within these constraints and can give you a realistic view of what is likely to suit your property before you commit to a specification.
Why homeowners choose Repair a Sash
We work specifically with London homeowners and a large proportion of our projects involve period properties where the details genuinely matter. Our approach is based on careful assessment rather than a standard sales pitch. We look at the actual condition of the windows and recommend the route that suits them, not the one that happens to be the biggest job.
That means we will recommend renovation or draught proofing where that is the more sensible and cost-effective answer, and we will be equally clear when a glazing upgrade or full replacement is the better long-term option. Our work is carried out with care and attention to detail, and is fully guaranteed.
Casement Windows
Renovation on time
and within your budget
FAQs about wooden casement windows in London
Sash windows slide vertically within the frame, while casement windows are hinged and open like a door. Both are common across London, and the right choice usually depends on the style of the property and the condition of the existing joinery.
Yes, in many cases. Timber is often the most appropriate material for listed buildings and conservation areas, although requirements do vary by property and local authority.
Often, yes. Where the existing frame is still in good condition, we can fit new double glazed casement windows into it rather than replacing the entire unit. That can be a more economical and less disruptive route than full replacement.
It depends on the property, the look you want to achieve, and the level of weather protection required. Flush casement windows are often better suited to period homes and conservation-sensitive settings, while stormproof casement windows can be the more practical choice where weather resistance and performance are the priority.
Book your casement window survey in London
If you are unsure which casement window service is right for your property, the best starting point is a survey. We will assess the condition of your existing windows and give you a clear recommendation, whether that means new casement windows, draught proofing and renovation, or a double glazing upgrade.
Get in touch to arrange your survey or to ask any questions about casement windows in London, including new timber casement windows, renovation, or glazing upgrades.
