French DoorsElegant, Secure & Garden Ready
At Win-Doors INT LTD, our casement windows offer classic style with modern performance. Side-hung, top-hung, French casement options in uPVC, aluminium & timber. The UK’s most popular window with storm-proof overlap for superior weather sealing.
What is a French Door?
A French door is a double door system with two side-by-side doors that open outwards from the centre, giving you a full-width opening to your garden or patio.
Unlike sliding doors, both doors can swing open to 180°, creating a seamless indoor-outdoor flow with no fixed pane in the middle.
Our uPVC French Doors are made to measure in the UK using the 70mm Profile 22 system — steel reinforced, A-rated energy efficient, and PAS24 secured with 5-point hook locking and 3-star anti-snap cylinders on both doors.
Available in white or 20+ colours, low threshold option, 28mm toughened double glazing as standard, and backed by a 10 year guarantee.
Key Features
Double doors. Full garden views. Built for British weather.
The Full Throw Open
Both doors swing 180° wide, no post in middle. Whole patio becomes your living room.
Locked Down Tight
Master + slave both have 5 hook locks + 3-star anti-snap. Police approved, burglar proof.
No Trip, Just Glide
Low 15mm threshold. Barefoot glide kitchen to garden. Buggy & wheelchair friendly.
Warm, Not Drafty
A-Rated 28mm toughened, Argon filled. Keeps London chill out, heat in. U≤1.2.
Built Like a Tank
70mm Profile 22 + steel core. Won't bow or rattle. Storm-proof & silent.
Sealed 3 Times Over
Triple EPDM seals on both doors. No wind whistle, no rain leaks. Ever.
More Glass, More Light
Slim sightlines = bigger glass, brighter home. 20 colours, dual colour OK.
10 Year Guarantee, Sorted
Frame, glass, locks, fitting all covered. UK made. We fix it if it fails.
Two Materials.
One Perfect Garden Exit.
Built for British weather. Choose warm, low-maintenance uPVC or slim architectural aluminium both PAS24 secured, A-rated and made to measure in the UK.
MOST POPULARuPVC French Doors - Profile 22
- A+ Energy Rated
- 5-Point Hook Security
- 15mm Low Threshold
- 20+ Colours Dual Colour
- 10 Year Guarantee
- Cost Effective
PREMIUM SLIMLINEAluminium French Doors
- Ultra-Slim 54mm Sightlines
- Thermally Broken
- 45+ Year Lifespan
- Powder-Coated RAL Colours
- 100% Recyclable
- Architectural Strength
French Doors Built For British Homes, Backed By 20+ Years Of Expertise
We don't just fit doors we manufacture premium French door systems designed for the UK climate, installed with precision, and guaranteed for a decade.
Made to Measure in the UK
Every window manufactured to your exact size, not off-the-shelf. Perfect fit, zero compromise.
Profile 22 System
UK's most trusted 70mm system for thermal & weather performance. Engineered for British weather.
A+ Energy Efficient
Keep heat in, bills down, EPC ratings improved. Argon-filled double glazing as standard.
Secured By Design
Multi-point locking, internal glazing, police-approved security. Your peace of mind built-in.
10 Year Guarantee
Full guarantee on frames, hardware & installation. No quibble, no small print.
Made to Last, Zero Maintenance
Never rots, warps or needs painting. A quick wipe keeps them pristine for decades.
Where Are French Doors Used?
From cosy London terraces to luxury garden extensions, French doors create the perfect indoor-outdoor connection. Their double 180° opening, low threshold and full-height glass make them the homeowner's choice for light, access and garden living.
01 • ApplicationHomes & Garden Extensions
Transform your home with a full-width garden opening. Perfect for extensions, lounges and dining rooms where you want the garden to be part of the room.
- Full-width garden access
- Heritage + modern compatibility
02 • ApplicationKitchens & Dining Areas
Bring daylight and fresh air to where family gathers. Low threshold lets you carry food, drinks and trays straight to the patio.
- Seamless patio access
- Low threshold, no trip hazard
03 • ApplicationConservatories & Orangeries
The classic partner for conservatories. Double opening gives maximum ventilation and a grand entrance to the garden.
- Grand garden entrance
- Maximum airflow in summer
04 • ApplicationBedrooms & Ground Floor
Private garden access from your bedroom or ground floor lounge. Secure enough for night-time ventilation with restrictor.
- Secure garden access
- Trickle vents for night cooling
05 • ApplicationFlats & Apartments
Maximise light and add value to flats with Juliet balconies or small patios. PAS24 security as standard for ground floors.
- Juliet balcony compatible
- PAS24 security for flats
06 • ApplicationRenovations & New Builds
Replace old sliding or single doors with French doors for more light and better access. Ideal for new builds, renovations and replacement projects.
- Replaces old sliding doors
- New build & replacement ready
Built For Every Opening
Full Garden Opening
Both doors swing 180° wide, no fixed post. Whole patio becomes your room.
A-Rated & Warm
28mm toughened Argon glass + triple seal. U≤1.2, keeps heat in, draughts out.
More Light, Less Frame
Slim sightlines and full-height glass flood your home with natural light.
PAS24 Secured
5 hook locks on master + slave, 3-star anti-snap barrels, police approved.
Colours to inspire
Aludec and Woodec deliver a step change in the application of PVCu colour finishing options.
Inspired by nature
Woodec
Woodec illustrates the appearance of real wood with a unique character combined with all the advantages of our excellent product range. This is what the new Woodec decorative foils offer. Not only is it difficult to distinguish visually from the natural material, but the Woodec foil also recreates wood very realistically to the touch, thanks in part to deep embossing and a matte top layer.
Inspired by style
Aludec
The attractive surface of Aludec decorative foils, distinguished by a unique fine-grained, matt surface with a similar finish to powder-coated aluminium, is a fabulous option that suits contemporary modern minimalist designs.
The new Aludec foils follow this trend, offered in seven attractive shades ranging from whites and greys, brown, jet black, anthracite, and a metallic finish.
Feature colours
Standard foil colours
All aluplast coloured foil finishes feature innovative technology which improves performance characteristics, providing a much longer life cycle of the surface finish.
Custom foil colours
Our Completed Projects
French Doors FAQs
Answers to the questions homeowners ask us most about uPVC, aluminium and replacement French doors.
What is the difference between uPVC and aluminium French doors?
uPVC is warmer, cost-effective and low maintenance with a 70mm Profile 22 system. Aluminium is slimmer (54mm sightline), stronger and lasts 45+ years with RAL powder coating. Both are A-rated and PAS24 secure.
Do French doors come with a low threshold?
Yes. We offer a 15mm low threshold option which is DDA compliant, wheelchair and pushchair friendly, and creates a seamless kitchen-to-garden flow.
Are French doors secure?
Yes. Both master and slave doors have 5-point hook locking, 3-star anti-snap cylinders, and are Secured by Design / PAS24 certified.
Can you replace my old sliding doors with French doors?
Yes. We replace sliding, single doors and old French doors daily across London & South East. No major building work needed in most cases.
What colours do French doors come in?
White as standard, plus 20+ colours including Anthracite Grey, Black and dual colour (grey outside, white inside). Woodgrain foils available.
What glass do you use?
28mm toughened double glazing, Argon filled, warm-edge spacer, U-value ≤1.2 A-rated as standard. Triple glazing and laminated acoustic options available.
How long does installation take?
Most French door installations are completed in 1 day. Survey to fitting is typically 2-3 weeks, UK manufactured to measure.
Do you offer a guarantee?
Yes 10 year guarantee on frames, glass, hardware and installation. No quibble, fully insured.
Do French doors open in or out?
Standard is outward opening 180° to maximise indoor space and weather sealing. Inward opening available on request.
What areas do you cover?
London, South East London, Kent, Surrey, Essex and surrounding areas. Free survey and quote within 24 hours.
Elevate Your Home with Windows & Doors
Get a free, no-obligation quote for casement windows in London. Made-to-measure, FENSA installed, A-rated & PAS 24 secure. Side-hung, French & bay options in uPVC, aluminium.