KLIS JOINERY & CARPENTRY LTD
LONDON TIMBER SPECIALISTS
HAMPSTEAD | LONDON
Bespoke timber sash windows for Hampstead’s Georgian, Victorian and Edwardian properties. Draught-free, double glazed, and faithful to the architectural detail that defines the area.
Few areas in London carry Hampstead’s architectural weight. Church Row’s Georgian terraces, the Victorian houses of Downshire Hill and Keats Grove, and the grander Edwardian properties along Frognal all rely on their sash windows to hold the character of the street. That means the quality of any window work shows.
Klis, Besi and the team visit every Hampstead job themselves. No call centres, no subcontractors, no handoffs.
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On a Hampstead street with strong architectural character, a mismatched profile or incorrect glazing bar layout is hard to overlook. We take measurements from your existing windows and reproduce every detail — horns, meeting rails, sash weights — so that nothing looks out of place.
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Hampstead sits within one of Camden’s 36 conservation areas, and Article 4 Directions apply across much of the NW3 postcode — meaning even like-for-like window replacement often requires a planning application. Camden’s design guide for the area is specific about materials and profiles. We know what’s required and can advise you before you make any decisions.
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Every stage of the job is handled by our own team — the same people from survey through to sign-off. Nothing is passed out, and the standard doesn’t vary.
LONDON TRUSTS KLIS JOINERY & CARPENTRY FOR HONEST & ACCURATE ADVICE
We’ll come to you, look at your windows properly, and give you an honest view on what makes sense. No upselling, no obligation. Free home visit across London.
Bespoke timber sash windows built to your exact proportions and fitted precisely in period and contemporary homes.
Bespoke bay and box bay windows designed and fitted to suit your home’s proportions and style.
Modern sealed units fitted into traditional timber frames. More warmth, better noise reduction, lower energy costs.
Stop cold air, reduce heating bills, and eliminate rattles in the home without having to replace your existing windows.
Broken cords, rattling sashes, jammed frames, and more. We restore original timber windows to full working order.
Looking for high-quality, handcrafted timber windows only? We supply bespoke sash and bay windows to clients and trade.
When rot reaches the structural core, patching becomes a short-term answer at best. Wood that gives way at the corners or a sill that has failed structurally — at that point, replacement is the right course.
In Hampstead's period homes, single-glazed sash windows are often where most heat escapes. Cold frames, condensation on the glass or street noise travelling through easily all point to double glazing making a worthwhile difference.
Stiff sashes, snapped cords and frames that have shifted out of true are familiar problems in NW3 properties. Where wear has gone far enough that the window no longer functions or seals, replacement is the more durable fix.
We come to your Hampstead property, assess your windows directly and provide a clear written quote. No middlemen, no pressure, no commitment required.
Windows built to your measurements and fitted by our own team, causing as little disruption to your home as possible.
Existing frames removed, site left tidy, each window tested before we go. Available if anything needs attention after handover.
We install and repair timber sash windows across Hampstead and the surrounding area. Unsure whether we cover your road? Give us a call or send a message — we’ll confirm.
Contact Klis Joinery & Carpentry to book a free home visit and talk through your sash window needs without any pressure.
We give clear, honest advice and leave the decision entirely with you.
When the main frame is structurally intact, repair is generally the better choice. Cord failures, draughts, rattling and limited surface rot can all be dealt with without a full replacement. If the frame itself has gone, or if you want to upgrade to double glazing, replacement is the more sensible route. We’ll give you a straight assessment at a free home visit and only recommend what’s genuinely needed.
Yes. Hampstead has exceptional architectural variety — Georgian six-over-six on Church Row, Victorian two-over-two on Downshire Hill, Edwardian configurations along Frognal. We measure from your existing windows and replicate profiles, glazing bars, meeting rails and proportions exactly, whatever the original style.
Yes. All replacement sash windows can be fitted with sealed double-glazed units in traditional timber frames — better thermal and acoustic performance with no change to the period appearance. Worth noting that in Hampstead’s conservation area, double glazing on front elevations may need planning approval. We can advise on this when we visit.
Yes. The Hampstead Conservation Area is covered by an Article 4 Direction, which means permitted development rights are removed and planning permission is required for most external window work — including like-for-like timber replacements on front elevations. Camden’s design guide for the area sets out specific requirements around profiles and materials. We’re experienced working within these restrictions and can walk you through what applies to your property.
Two to four windows typically takes one to two days on site once the windows are made. Bigger projects across a whole property are sequenced to keep any opening exposed for as short a time as possible. We’ll give you a clear schedule at the survey stage.
We use sustainably sourced African Sapele hardwood, chosen for its stability and resistance to the movement and moisture typical of the UK climate. All timber is pre-treated before fitting. With repainting every five to seven years, a well-made sash window will last for decades — we’ll cover the maintenance routine at handover.
Yes. Disposal of old frames is included — no extra charges. We protect floors, walls and finishes while we work, leave everything clean, and test each window fully before we leave.
Price varies with window size, quantity, glazing specification and the requirements of any conservation area or listed building consent involved. As a guide, fully installed replacement sash windows start from around £1,200 per window. A free home visit gives you the most accurate figure — we’ll assess your windows and provide a written quote with no obligation.
