Georgian French Windows: How to Design Heritage-Style Windows with Modern Performance
French windows fill a room with light and open wide to fresh air. Georgian French windows add a timeless grid of glazing bars, giving you the generous opening of a French window with the character of a Georgian façade.
In this guide, our team explains how they work, which options you can choose and how to configure them for your home.
What are Georgian French windows?
"Georgian" describes the style: smaller panes separated by glazing bars in a regular grid. "French" describes how the window opens.
A French window has two side-hung sashes that open outwards. The central mullion is attached to one sash, so it moves out of the way as the window opens. With both sashes open there is no post in the middle, just a clear, wide aperture and a panoramic view.
Add Georgian bars and you gain heritage character without losing that generous opening or the ventilation it brings.
French casement windows vs sash and standard casements
If you are replacing windows in a period home, it helps to compare the main opening styles:
Sash windows slide vertically, so they suit spots where there is little room for a sash to swing.
Standard casements are hinged at the side or top and are the most versatile all-rounder. Our guide to Georgian-style casement windows covers them in detail.
French casement windows give the widest uninterrupted opening, ideal for rooms overlooking a garden or a Juliet balcony.
Think about furniture, curtains and window boxes too, as outward-opening sashes need clear space outside.
Choosing the right frame material
Timber looks traditional but needs regular sanding, sealing and painting to stay in good condition.
uPVC offers convenience, but it often lacks the slim sightlines a refined Georgian look calls for.
Aluminium is strong and durable, so frames can stay slim and elegant, maximising glass and daylight without feeling bulky.
For heritage style windows that need little upkeep, aluminium is our recommendation.
Designing Georgian French windows with the Origin OW80
The Origin OW80 Premium window is the system we use for this style. Its casement sits completely flush with the outer frame on both sides, giving a clean, traditional appearance inside and out.
Configured as a French window with a moving central mullion and Georgian astragal bars, it recreates the look of small panes while offering high thermal efficiency and modern locking systems.
What you can customise
Bar layout: Georgian bars in different proportions and configurations to suit your property.
Colour: over 150 RAL colours, from subtle heritage tones to bold contemporary finishes.
Glazing: double or triple glazing, depending on your comfort and budget goals.
Handles: vintage-inspired monkey tail and pear drop designs in black or pewter, or modern styles.
Design tips from our team
Match the grid to the house. If other windows have a set bar pattern, carry it through so the façade feels planned.
Choose colour with the street in mind. Soft heritage shades often sit well on older properties, while darker frames can suit a contemporary extension.
Pick handles last. Once the frame and colour are set, it is easier to see which handle style completes the look.
Check planning early. In a conservation area or listed building, talk to your local planning authority before committing.
Replacement windows in England need a U-value of 1.4 W/m²K or better, and we will confirm the figure for your chosen glazing.
Where Georgian French windows work best
They suit a wide range of homes, including:
Period properties looking for authentic character.
Homes in conservation areas where appearance matters.
Extensions that need to sit comfortably beside an older building.
New builds seeking a more classical finish.
For more on how Georgian styling fits older homes, read our article on Georgian windows in a period home.
Frequently asked questions
Can you put Georgian bars on French windows?
Yes. Astragal bars can be specified in different proportions and configurations, so the grid can be tailored to your home. We will draw it to scale before you commit.
What is the difference between French windows and French doors?
French windows are two outward-opening sashes within a window opening, usually above floor level. French doors are full-height and designed for walking through, typically onto a garden or patio.
Will aluminium Georgian French windows look authentic?
A carefully specified system, with slim flush sashes, balanced bar proportions and the right colour, delivers a refined Georgian look. You also gain modern locking, thermal efficiency and low maintenance.
Design your Georgian French windows with us
Georgian French windows are a beautiful way to bring light, air and heritage character into a room. Our team will help you choose the bar layout, colour, glazing and handles, and you can explore our window range for ideas.
Book a free consultation and let us help you design the perfect windows.
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