Replacement Sash Windows That Respect Your Home's Character

Far more closely than most homeowners expect before they see examples. Modern uPVC profiles with woodgrain finishes and correctly specified glazing bar configurations replicate original Victorian and Edwardian sashes convincingly at normal viewing distance. On high-specification timber-alternative profiles — which include the horn detail and exact period sightlines — the result satisfies most conservation officers as well as most homeowners. We can show you reference photographs of comparable properties we have fitted in the area, which is more useful than any brochure image.

In most cases, yes. Replacing like-for-like sash windows in a conservation area — same profile, same colour, same glazing bar configuration — typically does not require planning permission. Where the replacement involves a change to the profile, the material, or the appearance, there may be requirements to satisfy. We work regularly on properties in conservation areas across Windsor, Beaconsfield, Gerrards Cross, and the surrounding villages, and we know what local planning authorities in this area typically expect. We will assess your specific situation during the site visit and advise you clearly before anything is agreed. We will not specify something that is likely to cause a planning issue.

Listed building consent is required for any alteration to the windows of a listed property, and the requirements are more specific than for conservation area properties. We have experience with listed buildings across South Bucks and East Berkshire and will advise you honestly on what is likely to be achievable and what the process involves. In some cases, the only acceptable option for a listed building is sympathetic restoration of the existing timber rather than replacement — we will tell you if that applies to your property.

It depends on the condition of the existing frames. If the timber is structurally sound — no significant rot, frames still square and true — draught-proofing and re-cording the sashes is a cost-effective way to extend their life and improve their performance considerably. If the frames are rotting, the timber is beyond reasonable repair, or the single glazing is making the rooms genuinely uncomfortable, replacement becomes the better long-term investment. We will give you an honest assessment of what is there when we visit, with no commercial incentive to push you towards replacement if restoration is the right answer.

Original timber sash windows used a system of weights and cords hidden inside the frame to counterbalance the sashes. Modern replacement sashes use a spring-balance mechanism built into the frame — the spring provides the counterbalance without the need for cords or weights. The result is smooth, controlled operation. The sash can be held at any position without it dropping or rattling. Both sashes on a double-hung window are operable and tilt inward for cleaning on most modern profiles.

Signs that replacement is the right call include: timber that is significantly rotten or structurally compromised; frames that are no longer square, making the sashes difficult or impossible to operate properly; single glazing that is causing the room to feel cold or is allowing significant noise in; and failing putty or glazing that has allowed water into the frame over time. If the frames are in reasonable structural condition but the cords have failed or the draught-proofing has deteriorated, repair and restoration may well be sufficient. We will assess this honestly when we visit.

A single sash window typically takes two to four hours, depending on the size of the opening and whether the existing frame requires any preparation work. A full-house replacement on a Victorian or Edwardian property is usually completed within one to two days. We will give you a clear timeframe in your written quote.

Yes. We can show you photographs of sash window installations we have completed on comparable properties in the area — Victorian terraces in Windsor, Edwardian semis in Beaconsfield, and larger period homes in Gerrards Cross. Seeing the finished result on a real property of similar age and style is far more useful than a brochure photograph, and we are happy to share these during the site visit.

For most window and door replacements, no. Like-for-like replacements fall under permitted development rights and require no planning permission. If your property is in a conservation area — parts of Windsor and Beaconsfield Old Town, for example — or if it's listed, there may be restrictions on colour, style, or material. We know the local areas well and will flag anything relevant during your visit.

Yes. FENSA registration means every installation we complete is certified to meet current building regulations, and the work is registered with your local authority automatically. This is important if you ever sell your home — solicitors will ask for it. You don't need to do anything; we handle the registration on your behalf.

Our installations come with a 10-year guarantee as standard, covering both frames and sealed glazing units. Combined with FENSA registration and our full public liability insurance, you're protected throughout the installation and long after completion.

Yes. We remove all old frames and glass and dispose of them responsibly. We also leave your home clean and tidy at the end of every job — it's part of how we work, not an optional extra.

We don't consider a job complete until you're satisfied. If something isn't right, tell us and we'll fix it. Our reputation in South Bucks has been built over 20 years — we have every reason to make sure you're happy.