Sash windows
Edwardian sash windows
We handcraft bespoke timber Edwardian sash windows that faithfully replicate the light, elegant designs of the Edwardian era — most recognisably the six-over-two arrangement — while incorporating modern glazing, draught-proofing and security. Made to order for Edwardian homes, period terraces, listed buildings and conservation areas across London and the surrounding counties.
Edwardian sash windows are renowned for their light, elegant appearance. Widely used between 1901 and 1910 — and remaining popular into the early 1920s — the style is often seen as a transition between the ornate Victorian period and the simpler designs that followed.
Edwardian homes were built to maximise natural light and create brighter, more open living spaces. As a result, Edwardian sash windows typically feature larger panes of glass and slimmer glazing-bar arrangements than earlier Georgian windows, while often retaining some decorative bars from the Victorian era in a simpler, less ornate form.
Original Edwardian windows were made from high-quality timber using traditional box sash construction with weights and cords. We replicate those designs faithfully, tailoring each window to match existing patterns, glazing-bar layouts and architectural details.
Lighter, brighter, more refined — the Edwardian sash, faithfully remade for the modern home.
What matters
Designed around the rules for your home
The classic six-over-two
The most recognisable Edwardian layout has six small panes in the upper sash and two larger panes below — an elegant arrangement that lets more natural light into the property while keeping period character. We match it precisely, along with other Edwardian patterns.
Larger panes, refined detailing
Advances in glass manufacturing allowed larger panes and cleaner designs. Edwardian windows often kept decorative glazing bars from the Victorian era, but with a simpler, lighter appearance — exactly the balance we recreate.
Ideal for period and heritage homes
Edwardian houses, period terraces, detached villas, listed buildings and conservation properties all suit this style. Each window is made to order and tailored to your property's existing details.
Specification
The detail, documented
Specification options for edwardian sash windows. Final specification is confirmed at survey and tailored to your property and conservation requirements.
Edwardian configurations
| Six over two | The classic Edwardian arrangement — six small panes above, two larger panes below |
|---|---|
| Larger lower panes | Maximising natural light, in keeping with Edwardian design |
| Decorative bar options | Simpler, refined glazing-bar patterns carried over from the Victorian era |
| Matched to your property | Tailored to existing window patterns and architectural details |
Glazing & performance
| Slimline double glazing | Improved insulation with elegant Edwardian proportions — whole-window U-value approximately 1.6–1.9 W/m²K |
|---|---|
| Vacuum glazing | Outstanding thermal performance in a slim profile that preserves original aesthetics — whole-window U-value approximately 0.8–1.0 W/m²K, ideal for listed buildings |
| Glazing bars | Slim timber bars or our popular 20mm timber-masked bars; true bars for the most stringent settings |
| 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 |
Operation
| Traditional weights and cords | Authentic box sash operation, as on original Edwardian windows |
|---|---|
| Modern spiral balances | Smooth operation and reduced maintenance, keeping traditional aesthetics |
Security
| Locking | Key-locking sash fasteners and modern security locking systems |
|---|---|
| Safety | Child-safety restrictors and toughened safety glazing options |
| Ventilation | Secure night-ventilation positions |
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 six-over-two Edwardian sash window?
A six-over-two sash window has six small panes in the upper sash and two larger panes in the lower sash. It is the most recognisable Edwardian layout, creating an elegant appearance while letting more natural light into the room than earlier multi-pane Georgian designs.
What is the difference between Victorian and Edwardian sash windows?
Victorian sash windows (1837–1901) are typically two-over-two with larger plain panes. Edwardian windows (1901 onward) are lighter and more refined — often six-over-two, with larger lower panes to maximise daylight and simpler decorative glazing bars. We make both, matched to your property's era.
Can Edwardian sash windows be double glazed?
Yes. Slimline double glazing achieves a whole-window U-value of approximately 1.6–1.9 W/m²K while keeping elegant Edwardian proportions. For listed buildings, vacuum glazing reaches approximately 0.8–1.0 W/m²K within a slim profile that preserves the original appearance.
Are Edwardian sash windows suitable for conservation areas?
Yes. We make Edwardian sash windows with traditional sightlines, authentic timber sections and conservation-friendly detailing, tailored to match your property's existing patterns. We work with conservation officers and planning departments to achieve sympathetic replacements.
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