French Doors

French Doors

Traditional elegance. Maximum natural light. Open in or out.

French doors are a timeless choice for connecting indoor living spaces to gardens, patios and terraces. Offering a more traditional aesthetic than bi-fold or patio doors, they work particularly well where the aperture size is more limiting — delivering the same sense of openness and light without requiring a wide structural opening.

Our uPVC French doors are built on the Liniar profile system — a lead-free, thermally efficient solution available in chamfered or sculptured finish, with a comprehensive choice of colours, glazing options, hardware and threshold configurations to suit any property.

Why Choose uPVC French Doors?

Open in or open out	Available in either open-in or open-out configuration to suit the layout of the living space. Open-out maximises usable interior floor space; open-in is preferred where external clearance is limited.
Maximum natural light	The fully sculptured profile features slim sight lines — less frame, more glass — ensuring the maximum amount of natural light enters the room without compromise.
Thermally efficient by design	Available with standard four-chamber or EnergyPlus six-chamber profile, and in 28mm double or 40mm triple glazing. The Liniar system is uniquely designed without traditional steel reinforcing, using PVC inserts with equivalent tensile strength — an industry leader in energy efficiency with a C to A+ energy rating range.
Lead-free profile	The Liniar system is fully lead-free, with unique PVC inserts replacing traditional steel reinforcing. This improves long-term environmental credentials and maintains the system’s thermal performance throughout its lifespan.
Strong and secure	Shootbolt locking and double handles are fitted as standard. Secured by Design and PAS24:2016 upgrades are available on request, and all products comply with the relevant divisions of current Building Regulations.
Threshold options including Part M	A range of patented low and ultra-low threshold options are available, including ramp thresholds for disabled access (Part M compliant) — making these doors suitable for a wide range of residential applications.
Anti-static, easy-clean profile	The anti-static profile surface resists dust and is straightforward to clean. 32mm channel packers are factory fitted, and single J-leg security beads are included for ease of glazing on site.
Flexible coupling configurations	Frames are designed to couple in multiple configurations — including patio configurations and casement window combinations — with 10mm, 20mm and 50mm add-on options for a perfect fit in any installation.

Technical Specification

Specification	Detail
Profile system	Liniar uPVC — lead-free, anti-static
Profile finish	Chamfered or sculptured
Profile depth	77mm door suite — 22mm from hinge edge to outer frame
Chamber options	Standard 4-chamber or EnergyPlus 6-chamber
Glazing	28mm double glazing or 40mm triple glazing
Energy rating	Entry level C-rated to A+ (dependent on specification)
Maximum sash size	1000mm wide x 2150mm high
Locking	Shootbolt locking, double handles as standard
Opening configuration	Open in or open out
Threshold options	Standard, low, ultra-low and Part M ramp threshold
Security upgrade	Secured by Design and PAS24:2016 available on request
Reinforcing	PVC inserts (equivalent tensile strength to steel — no traditional steel reinforcing required)
Add-on options	10mm, 20mm and 50mm to accommodate any installation
Coupling	Designed to couple with patio and casement configurations
Glazing efficiency	32mm channel packers factory fitted; J-leg security beads included

Warranties

Component	Warranty
Door locks	10 years mechanical warranty
Cylinders	10 years mechanical warranty
Door handles	10 years mechanical warranty
Pro Secure door hinges	10 years mechanical warranty
Marine Grade Stainless Steel door handles	Lifetime coating warranty (gold & chrome)
Marine Grade Stainless Steel letterplates	Lifetime coating warranty (gold & chrome)
uPVC profile	10 years profile warranty
Unique warranty registration	Available on request

Colours

French doors are available in a wide range of standard and bespoke colour options to complement any property style. Standard stocked colours are available for shorter lead times; special order foiled colours are also available.

Category	Colours Available	Lead Time
Standard colours	White, Rosewood, Cream, Irish Oak, Light Oak	From stock
Bespoke colours	Chartwell Green, Grey, Black — and a full extended range of foiled options	5–6 weeks (foiled one side) / 7–8 weeks (both sides)
Colour coordination	Colour-coordinated door flag hinges available on request to complement coloured door choices	On request

Note: Resurgence and astragal bar orders require additional production time on top of the lead times above.

Glazing Options

French doors are available with a range of glazing specifications to balance thermal performance, privacy and visual impact.

28mm Double Glazing	Standard double glazing unit suitable for most residential applications. Delivers solid thermal and acoustic performance.
40mm Triple Glazing	Enhanced triple glazing option for maximum thermal efficiency — recommended where energy performance is a priority or the door faces a prevailing wind.
Decorative glazing	A range of decorative and patterned glass options are available to add privacy and character. Speak to our team for current glazing collections.

Threshold Options

A key consideration for French door installations is the threshold specification. A range of patented threshold options is available to suit different site conditions and access requirements.

Threshold Type	Best Suited For
Standard threshold	General residential installations where a weather seal is required and step height is not a concern.
Low threshold	Installations requiring a reduced step height — improved accessibility without full flush-to-floor specification.
Ultra-low threshold	Minimal height transition between interior and exterior. Ideal for contemporary installations and level-access designs.
Ramp threshold (Part M)	Disabled access applications. Compliant with Part M of the Building Regulations. Provides a smooth, ramped transition.

Security

All our French doors are manufactured using the latest security products as standard, with upgrade options available for higher security specifications.

Standard security	Shootbolt locking and double handles fitted as standard across the range. All frames are manufactured to comply with current relevant Building Regulations.
Secured by Design upgrade	Available on request. Secured by Design is the UK Police-preferred specification for crime prevention through environmental design, recognised by insurers and local authorities.
PAS24:2016 upgrade	Available on request. PAS24 is the enhanced security performance standard for doorsets, required under Approved Document Q for new build and replacement applications in England and Wales.
Pro Secure door hinges	Available as a hardware upgrade, covered by a 10-year mechanical warranty.

French Doors vs Patio Doors vs Bi-Fold Doors

Not sure which door type is right for the opening? Here’s a straightforward guide:

	French Doors	Patio Doors	Bi-Fold Doors
Opening style	Both leaves open fully	One panel slides	Panels fold and stack
Best aperture	Narrower openings	Mid-range openings	Wide openings
Space required	Swing clearance needed	Minimal — slides	Minimal — folds to side
Aesthetic	Traditional	Contemporary/clean	Modern/open plan
Natural light	Very good	Very good	Maximum
Ventilation	Full open both sides	One side only	Full opening possible
Security	Shootbolt + upgrades	Multipoint locking	Multipoint locking
Price position	Cost effective	Mid range	Premium

Frequently Asked Questions

What are uPVC French doors?

uPVC French doors are a double-door configuration where both leaves open — either inward or outward — from a central meeting point. They are manufactured from unplasticized polyvinyl chloride (uPVC) profile, which is rigid, weather-resistant and low maintenance. Our French doors use the Liniar profile system, which is lead-free and does not rely on traditional steel reinforcing.

Can French doors open inward or outward?

Yes — our French doors are available in both open-in and open-out configurations. Open-out maximises usable floor space inside the room. Open-in is preferred where external clearance is limited, such as patio areas with furniture close to the door.

What is the maximum size for a French door?

The maximum sash size is 1000mm wide x 2150mm high per leaf. For wider openings, patio or bi-fold doors may be more appropriate — speak to our team for guidance on which product best suits the aperture.

Are French doors thermally efficient?

Yes. The Liniar profile system is available in a standard 4-chamber or EnergyPlus 6-chamber option, and can be specified with 28mm double or 40mm triple glazing. The system achieves an energy rating from C to A+ depending on the specification. The lead-free PVC insert reinforcing system also contributes to superior thermal performance compared to traditional steel-reinforced profiles.

Are uPVC French doors secure?

Shootbolt locking and double handles are fitted as standard. Secured by Design and PAS24:2016 upgrades are available on request for installations requiring enhanced security performance, such as new build or replacement applications under Approved Document Q.

Are disabled-access thresholds available?

Yes — a Part M compliant ramp threshold is available as part of the threshold range, providing a smooth, ramped transition suitable for wheelchair users and those with limited mobility. Ultra-low and low thresholds are also available for improved accessibility without a full flush specification.

What colours are available?

Standard stocked colours include White, Rosewood, Cream, Irish Oak and Light Oak. Bespoke colours including Chartwell Green, Grey and Black are also available, along with a full extended range of foiled options. Lead times for special order colours are 5–6 weeks foiled one side and 7–8 weeks foiled both sides.

What warranties are included?

A 10-year mechanical warranty covers door locks, cylinders, door handles and Pro Secure door hinges. Marine Grade Stainless Steel handles and letterplates carry a lifetime coating warranty in gold and chrome finishes. The uPVC profile carries a 10-year profile warranty. Unique warranty registration is available on request.

Can French doors be coupled with windows?

Yes — the Liniar frame is designed to couple in multiple configurations, including alongside casement windows and patio door configurations. Multiple add-on widths (10mm, 20mm and 50mm) allow the perfect fit for any installation.

Ready to specify?

Browse the full French door range or request a quote — our team can advise on profile, glazing, threshold and colour options for your project.