Timber Casement Windows
Purpose-made hardwood and softwood casement windows
Hand-crafted timber casement windows, designed and made in our Sevenoaks workshop in the hardwood or softwood you specify, and fitted by our own joiners. We routinely produce non-standard sizes and shapes that aren't available from retail outlets — including the awkward openings you find in cottages, converted barns and period townhouses.
Every window is dry-jointed in the workshop, primed and finished to your specification, and installed with proper weather detailing and matching mouldings. Single glazing for the most sensitive heritage settings; modern double-glazed units when energy performance matters more than the period look.
Why choose Timber Casement Windows
- Designed and made in our Sevenoaks workshop — never outsourced
- Any size, any shape — perfect for non-standard openings
- Hardwood or softwood — Oak, Accoya, Idigbo, Redwood and more
- Single or double glazed to suit period restoration or modern performance
- Hand-finished paint or stain in any RAL or heritage colour
- Mortice-and-tenon joinery built to last decades
- Installed by our own team, never subcontracted
Engineered for performance
- Traditional mortice-and-tenon construction
- Slim sightlines matched to existing windows
- Internal beading for security on glazed lights
- Stainless-steel or brass hardware to your choice
- Drip mouldings and cill detailing matched to property
- Trickle vents fitted only where Building Regulations require
Configurator
Mix and match colours, hardware and glass to suit your home.
Available finishes
Choose your style
- Side-hung casement
- Top-hung opener
- Fixed light
- Bay (square or splayed)
- Bow window
- French casement (no centre mullion)
Glass options
- Single glazed — heritage matched to existing
- Slim double glazed units (12–14mm) for conservation areas
- Standard 24mm argon-filled double glazing
- Triple glazing for extreme exposure or noise
- Acoustic laminated for road-facing rooms
- Toughened safety glass (BS EN 12150)
- Obscure / privacy patterns
- Stained, leaded and Georgian bar details
Furniture & hardware
- Solid brass, chrome, satin or bronze ironmongery
- Espagnolette and shootbolt locking
- Heritage monkey-tail and pear-drop handles
- Period-correct fanlight catches and stays
- Sash pulleys, lifts and sash locks (for sash windows)
- Multi-point security locking on opening lights
- Trickle vents where Building Regulations require
Tailored to your home
Every window is drawn to fit your specific opening. Mouldings, glazing bars and bead profiles are matched to your existing detailing — or designed from scratch if you're restoring something that's already been replaced unsympathetically.
Property suitability
Period cottages, Victorian and Edwardian houses, 1930s semis and listed properties across Kent and London. Equally well suited to architect-led new-builds where the natural movement and feel of timber is part of the brief.
How we fit it
We survey, manufacture, finish and install in-house. A typical full-house replacement takes 6–10 days on site for a four-bedroom property, with no mess at the end of each day and no subcontracted fitters.
Frequently asked
Do you work with listed buildings and conservation areas? +
How long does it take from first call to installation? +
Do you do free quotes? +
Do you install everything yourselves? +
Where are you based and how far do you travel? +
More Bespoke Windows
Like the Timber Casement Windows? Let's talk.
Free site visits across Kent and London — get in touch to discuss your project.