French Doors : A step by Step Guide

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Last Updated on 24 March 2025 by Josh Lucas

Thinking about transforming your home with a set of French doors? You’re in the right place.

In this step-by-step guide, I’ll walk you through all the essential things you need to know to make an informed decision.

From styles and materials to where to install them, we’ll cover it all.

Whether you’re updating a period property, building a new extension, or simply want to bring more light and flow into your space, French doors are one of the most stylish and versatile ways to do it.

Their classic design is as functional as it is beautiful—blurring the lines between inside and out, and bringing a sense of openness that few other doors can match.

As with any home improvement, the key to getting it right is understanding your options. That’s where this guide comes in. We’ll help you choose the perfect door for your home, your lifestyle, and your budget.

Quick Guide to What We’ll Cover:

What Are French Doors?

French doors are a pair of doors—usually glass-paned—that open from the centre and swing either inward or outward.

The defining characteristic is their elegant, symmetrical design and the large glazed panels that allow plenty of natural light to filter through, giving any room a brighter and more open feel.

These doors originated in 17th-century France as a way to bring light between interior rooms before electricity was commonplace. Their timeless design remains a favourite today for anyone looking to add charm, character, and a touch of sophistication to a space.

While they’re often associated with external installations—like opening out onto a garden or patio—they’re also a fantastic internal choice, especially when used to separate spaces like living and dining rooms, or even bedrooms and balconies.

French doors are available in a wide range of materials and styles, from classic timber-look uPVC to sleek, modern aluminium. The doors can be configured with multiple glazing options, decorative bars, and handle styles to suit anything from country cottages to urban apartments.

French doors : aluminum french doors being used as an enteance door with matching windows surrounding them
Add a touch of je ne sais quoi to your home with French Doors

How do they compare to other options?

Unlike sliding doors, which operate along a track and require lateral space, or bifold doors that concertina to one side, French doors are simpler in both form and function.

They provide a traditional swing opening and tend to be more affordable and easier to install—especially for standard-width openings. For homeowners who want a stylish, straightforward solution with architectural heritage, French doors tick all the boxes.

Why Choose French Doors for Your Home?

Adding French doors to your home isn’t just about good looks—although they’re stunning. It’s about creating a seamless transition between spaces. Whether you’re opening up a kitchen to the garden or dividing a lounge and conservatory, they create flow and flexibility.

Maximise Natural Light

Thanks to their expansive glass panels, French doors flood your space with daylight. Whether leading out to the garden or placed between internal rooms, they help make your home feel brighter and more inviting.

Create Open-Plan Vibes Without Knocking Down Walls

Love the idea of open-plan living but not ready for full structural changes? French doors offer a visual and physical connection between rooms while still allowing for separation when needed.

Versatile Aesthetics

From traditional country cottages to modern townhouses, French doors adapt beautifully to any architectural style. Choose from timber-look uPVC, flush sash, or industrial-style aluminium to match your home’s character.

Excellent Ventilation

Want to cool your home naturally in summer? Open both doors wide and enjoy maximum airflow without the obstruction of central mullions or sliding tracks.

Increased Property Value

A smart investment as well as a design choice—installing French doors boosts kerb appeal and enhances interior flow, both of which can be attractive to future buyers.

Real-life inspiration: One family used Smart Aluminium French Doors to connect their kitchen and newly built garden room. The result? A space that feels twice as big and is flooded with daylight.?

Where to Install French Doors

French doors are incredibly adaptable, and where you choose to install them can have a dramatic impact on both the look and functionality of your space.

Here are some of the most popular and effective places to fit French doors:

  • External French doors: A timeless favourite, these are often fitted at the rear of the home, opening onto patios, decking, or gardens. They create a seamless transition from indoor living spaces to the outdoors, letting in plenty of light and offering expansive views.
  • Internal French doors: Great for dividing spaces like living rooms and conservatories or dining areas and kitchens, without sacrificing natural light. They help you keep an open-plan feel while offering privacy and noise control when needed.
  • Extensions and garden rooms: If you’re building a sunroom, orangery, or modern extension, French doors add that stylish flourish. Use flush sash or aluminium frames to maintain the architectural integrity of the build.
  • Balconies and Juliet balconies: French doors work beautifully in upstairs rooms where you want to add a balcony or open up views—particularly when paired with full-length glazing.
  • Home offices and studios: Want a bright, inspiring space to work? Installing French doors in your office or creative studio can boost productivity and connection to the outdoors.

Top tip: Always consider door swing (inward or outward) depending on the room layout and available space. If you have limited space indoors, outward-opening French doors might be the better choice.

French Doors : smart aluminium french doors in 2 different configurations

Whether you’re after lifestyle enhancement, practical benefits, or a bit of both, there’s a French door configuration that fits the bill.

Style Choices for Every Home

Whether you’re leaning towards timeless charm or sleek minimalism, there’s a French door style for you.

  • Traditional French Doors – With Georgian bars or timber finishes
  • Flush Sash French Doors – Clean lines, timber-look with modern performance
  • Modern Aluminium – Minimal sightlines, more glass
  • Industrial Style – Think factory windows for your home

Exploring Material Options

At GFD Homes, we offer several French door ranges, each tailored to different homeowner needs.

Smart Aluminium French Doors

Sleek, contemporary and strong. Ideal for modern homes, especially when paired with large glass panels.

Pros: Slim sightlines, strong structure, durable
Cons: Slightly higher price point

Smart Industrial Style French Doors

For that loft-style, urban vibe. Bold lines and a grid-style look make these a statement piece.

Pros: High visual impact, perfect for design-led interiors
Cons: Best for larger openings

Deceuninck uPVC Flush Sash French Doors

Combines the timber look with modern materials. A great choice for heritage homes or those after that high-end flush finish.

Pros: Timber-style look without the maintenance, great insulation
Cons: Slightly more expensive than standard uPVC

Solidor Composite French Doors

Yes, composite doors can be French doors too!

The Solidor range offers all the strength, security and stunning colour choices of a composite door— now available in a double-door French configuration.

These are perfect if you’re looking for timber aesthetics, enhanced security and excellent thermal performance in one elegant package.

Pros: Timber-look finish with composite durability, wide colour range, highly secure and weather-resistant
Cons: Heavier than uPVC, higher price point than basic uPVC options

GFD Homes

You can browse our full range of Solidor French doors here.

Energy Efficiency and Security

Let’s be honest, no one wants draughty doors.

Thankfully, all of our French doors are engineered with energy performance in mind. From A+ energy ratings on our uPVC options to thermal break tech in aluminium frames, you can expect top-tier efficiency.

Typical U-values

When choosing French doors, energy efficiency is an essential consideration. U-values are a measure of how effective a material is as an insulator—the lower the U-value, the better.

Our uPVC French doors from Deceuninck offer outstanding performance, with U-values as low as 1.2W/m²K, making them an excellent choice for energy-conscious homeowners.

For those opting for a more premium, design-led solution, our Smart Aluminium French doors typically achieve around 1.3W/m²K, striking a great balance between sleek design and solid thermal performance.

Multi-point Locking Systems

All our French doors are equipped with advanced multi-point locks as standard.

These systems secure the door at multiple points along the frame, offering added resistance against forced entry and peace of mind.

High-strength Materials

From robust uPVC to premium-grade aluminium, our doors are built to withstand the elements and everyday wear.

Their rigid structures not only improve security but also ensure long-term durability.

Secured by Design Accreditation

Many of our door ranges have earned the Secured by Design certification—a UK Police initiative promoting products that meet enhanced security standards.

This includes reinforced frames, tamper-resistant hinges, and anti-snap locks.

Maintenance Tips for French Doors

Wipe Down Frames Monthly

Keep your frames looking their best and prevent the buildup of grime by cleaning them with warm soapy water and a soft cloth at least once a month.

Clean Glass with Non-Abrasive Cleaner

To keep your French doors sparkling, use a gentle, streak-free glass cleaner. Avoid harsh chemicals that might damage the seals or frames.

Lubricate Hinges and Locks Every 6 Months

A little lubricant goes a long way in keeping your doors opening smoothly and quietly. Pay attention to hinges, locks, and handles to extend their lifespan.

Clear Drainage Tracks of Debris

External French doors often feature drainage channels—especially aluminium models. Make sure these remain free of leaves, dirt, and debris to avoid water pooling or blockage.

Check Seals Annually for Wear and Tear

Inspect the door seals and weather stripping every year. Replacing worn seals keeps your doors energy-efficient and draft-free year-round. your French doors in top shape with this quick checklist:

Ready to Transform Your Home? Let’s Make It Happen

Whether you’re after contemporary cool or classic charm, we hope this guide has helped bring clarity to your French door journey.

From material breakdowns to style inspiration and practical advice, the goal is simple: to help you make a confident, informed decision.

Still unsure? Or maybe you’re ready to take the next step?

Call our expert team on 01642 309 576 or get an instant quote online at GFD Homes. We’re here to answer your questions, offer tailored advice, and help bring your home improvement dreams to life.

FAQs for French Doors

What is the difference between French doors and double doors?

Double doors is a general term for two doors that open together. A French door specifically features glass panes and are typically more decorative.

Why is a French door called a French door?

It originates from 17th-century France, where these doors were designed to allow more light between rooms.

Is it better to have French doors open in or out?

Depends on your space. Outward-opening doors save interior space, but inward-opening ones are more weather-resistant.

Do French doors add value?

Yes! They increase kerb appeal, bring in natural light, and improve indoor-outdoor flow—all of which appeal to potential buyers.

Do you need permission for French doors?

Not usually for replacements. For new openings or in listed buildings, you may need planning permission. Always check with your local authority.

Relevant Articles to Link to in the Blog:

Trade French Doors: Looking for trade prices? Check out our trade site, The Trade Village

author avatar
Josh Lucas
As a member of the GFD Homes' friendly neighbourhood marketing team, I’m here to spin web-slinging words that make home improvement easy and fun—no superpowers required! From tips to product insights, we've got all your home improvement needs covered, one blog at a time (without hanging upside down, promise!).
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