Casement windows
Georgian casement windows
Georgian casement windows combine the timeless elegance of traditional Georgian architecture with the practicality and performance of modern timber window construction. Characterised by their distinctive multiple-pane appearance — typically symmetrical glazing-bar layouts such as six-over-six — they are perfectly suited to period homes, listed buildings and conservation-area properties across London and the surrounding counties.
Georgian casement windows are characterised by their distinctive multiple-pane appearance, typically featuring symmetrical glazing-bar layouts such as six-over-six or similar Georgian patterns. Unlike the vertically sliding sash, a casement is hinged at the side and opens outward — a natural choice for cottages, extensions and many period and rural properties.
Our bespoke Georgian casement windows are handcrafted from premium timber and manufactured to replicate traditional Georgian proportions, while incorporating modern draught-proofing, security features and energy-efficient glazing. They pair that traditional appearance with a true flush casement profile, where the opening sash sits flush within the frame for an authentic, slimline look.
Available in a range of timber species including Engineered Redwood Pine, Meranti, Accoya® and Oak, each window is made to order and finished in your chosen colour to complement the character of your property.
Georgian proportions in a flush casement — classic character, modern comfort.
What matters
Designed around the rules for your home
Georgian character, flush profile
Fine glazing bars and multi-pane proportions in a true flush casement, where the sash closes flush within the frame for the clean, slim look of traditional joinery — ideal for cottages, period homes and conservation areas.
Matched to your property
We match glazing patterns, bar widths and proportions to your home, with our popular 20mm timber-masked bars or true bars, and period-appropriate ironmongery in your choice of finish.
For listed and conservation homes
Georgian casements suit many protected properties. We make sympathetic, consent-ready windows with traditional sightlines and authentic detailing, working with conservation officers where required.
Specification
The detail, documented
Specification options for georgian casement windows. Final specification is confirmed at survey and tailored to your property and conservation requirements.
Georgian casement detail
| Flush casement | Opening sash sits flush within the frame for an authentic, slimline period appearance |
|---|---|
| Multi-pane glazing | Fine Georgian glazing-bar patterns matched to your property |
| Glazing bars | Our popular 20mm timber-masked bars or solid true bars for the most stringent settings |
| Operation | Side-hung or top-hung, with friction stays or traditional casement stays and fasteners |
Glazing & performance
| Slimline double glazing | Improved insulation with elegant Georgian proportions — whole-window U-value approximately 1.6–1.9 W/m²K |
|---|---|
| Vacuum glazing | Outstanding thermal performance in a slim profile — whole-window U-value approximately 0.8–1.0 W/m²K, ideal for listed buildings |
| Draught-proofing | Concealed weather-seals for comfort without altering the look |
| Sightlines | Traditional sightlines and authentic timber sections throughout |
Timber species
| Engineered redwood pine | With hardwood sill — our most popular option, chosen for stability and value |
|---|---|
| Full hardwood meranti | A durable hardwood throughout |
| Accoya® | Modified timber with exceptional stability and longevity |
| European oak | A premium, characterful hardwood |
| Certification | FSC® certified timber |
Finish
| Paint system | Factory spray-finished before delivery; microporous system that lets the timber breathe |
|---|---|
| Colours | Single or dual colour, with a wide choice of RAL colours. We can also colour-match heritage brands such as Little Greene and Farrow & Ball |
| Coating warranty | 3 years on the factory-applied paint finish, subject to the recommended maintenance; recoating intervals depend on exposure and location |
Guarantee
| Component | Warranty |
|---|---|
| Timber frame | 8 years |
| Glass & sealed units | 3 years |
| Hardware & ironmongery | 5 years |
| Paint finish | 3 years |
| Conditions | Timber and paint guarantees are subject to the recommended maintenance schedule. Guarantees cover manufacturing defects, not damage, neglect or normal wear. |
How it works
From first survey to aftercare
- 01
Initial quotation
We provide an initial quotation within 1–3 days of your enquiry.
- 02
Site survey
Within 1–2 weeks we measure and document the openings on site, recording profiles, sightlines and any conservation status.
- 03
Drawings & approval
We produce production drawings and a specification for your approval — and to support any planning or listed building consent.
- 04
Manufacture
Once your specification is approved, each window is crafted to your approved specification. Typically 5–8 weeks; 7–12 weeks for larger or bespoke conservation work.
- 05
Installation
Our fitting teams install with minimal disruption — typically 1–5 days depending on project size.
Questions
Listed building windows: your questions answered
What is a Georgian casement window?
A Georgian casement window combines the multi-pane, slim-glazing-bar look of Georgian design with a side-hung casement that opens outward. Unlike a sash window, which slides vertically, a casement is hinged — making it a natural choice for cottages, extensions and new openings in the Georgian style.
What is a flush casement window?
A flush casement window is one where the opening sash closes flush within the frame, rather than sitting proud of it. This recreates the slim, clean appearance of traditional timber joinery and suits period homes and conservation areas particularly well.
Can Georgian casement windows be double glazed?
Yes. Slimline double glazing achieves a whole-window U-value of approximately 1.6–1.9 W/m²K, and vacuum glazing approximately 0.8–1.0 W/m²K, while keeping fine glazing bars and slim sightlines.
Are Georgian casement windows suitable for conservation areas?
Often, yes. Our flush casements with timber-masked or true glazing bars and period-correct profiles are designed to meet conservation requirements. We advise on the most likely acceptable specification and support any planning application.
Which areas do you cover?
We work across London and the Home Counties, including Surrey, Kent, Essex, Hertfordshire and Buckinghamshire, with nationwide supply also available.
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Discuss your project
Tell us about your property and we’ll advise on the most appropriate, consent-ready specification.
01527 590 776