What Is a French Window?

If you’ve been researching different types of windows, you may have come across the term French window. But what does it mean? In simple terms, a French window is a pair of large, side-hinged windows that usually open outwards from the centre, similar to French doors. They are often fitted to open onto a balcony, garden, or patio, bringing more light and air into your home.

Let’s look at how French windows work, their benefits, and whether they might be the right choice for your property.

The Basics of French Windows

A French window is designed like a door but built with window frames. It usually comes in pairs, with one on each side, opening either outwards or inwards. When opened together, they create a wide, unobstructed opening.

Key features include:

  • Large panes of glass – allow maximum light into the room.
  • Hinged design – usually side-hinged, like traditional doors.
  • Double opening – both windows open fully.

French windows are often installed at the rear of a property, leading to gardens, patios, or balconies.

Difference Between French Windows and French Doors

Many people confuse French windows with French doors. The difference is mainly in size and use:

  • French windows – Shorter, fitted at window height, often opening onto a balcony or upper floor.
  • French doors – Full height, designed for ground-floor access to patios or gardens.

Both add elegance and allow plenty of light, but French windows are more suited for upstairs rooms or where a smaller opening is needed.

Benefits of French Windows

French windows are popular for several reasons:

Natural Light

Large panes of glass let in more daylight, brightening rooms without needing extra artificial light.

Ventilation

Since both windows open fully, they provide excellent airflow. This helps cool the home naturally in summer.

Unobstructed Views

With no central frame, French windows give clear, wide views of the outside. Perfect for homes overlooking gardens or scenic areas.

Aesthetic Appeal

French windows have a timeless look, suiting both modern and traditional homes. They add a touch of style while being functional.

Flexible Access

They make it easy to step out onto a balcony or lean out for cleaning and maintenance.

Materials Used in French Windows

French windows can be made from different materials, each with its own benefits:

  • uPVC – Affordable, low maintenance, and energy-efficient.
  • Timber – Classic appearance, ideal for traditional or period properties.
  • Aluminium – Slim frames, modern look, strong and durable.

When choosing, consider the style of your home, budget, and maintenance needs.

Glazing Options for French Windows

Modern French windows often come with:

  • Double glazing – The most common choice, offering good insulation.
  • Triple glazing – For improved energy efficiency and noise reduction.
  • Low-E glass – Reflects heat back inside, keeping rooms warmer in winter.

Using advanced glazing helps meet UK building regulations on energy efficiency.

Security Features

French windows can sometimes be seen as less secure because of their wide opening. However, modern designs now include:

  • Multi-point locking systems – Locking at several points for added protection.
  • Toughened or laminated glass – Harder to break than standard glass.
  • Secure handles and hinges – Designed to prevent forced entry.

If fitted by a FENSA registered installer, you can be sure they meet UK safety standards.

French Windows and Energy Efficiency

A common question is whether French windows are energy-efficient. Thanks to modern glazing and insulated frames, they can achieve good U values and even A-rated performance.

Choosing windows certified by the BFRC ensures they meet strict energy standards. This means lower heating bills and a warmer, more comfortable home.

Where Are French Windows Best Used?

French windows work well in many settings, such as:

  • Bedrooms – Opening onto balconies for fresh air and views.
  • Living rooms – To brighten spaces and connect with the outdoors.
  • Period homes – Their traditional style matches Georgian or Victorian designs.
  • Modern builds – With aluminium frames, they suit contemporary architecture.

Their flexibility makes them a strong choice for homeowners wanting both style and function.

Alternatives to French Windows

While French windows are a great option, there are alternatives worth considering:

  • Casement windows – Simple, versatile, side-hinged windows.
  • Sliding patio doors – Save space by sliding instead of swinging open.
  • Tilt and turn windows – Open in different ways for flexible ventilation.
  • Bifold doors – Provide wide openings for full indoor-outdoor flow.

Each option has pros and cons, so it depends on your budget, space, and style preferences.

Comparing Window Types

Here’s a quick comparison of French windows with other common window types:

Window TypeMain BenefitBest For
French windowsWide opening, classic styleBalconies, upper floors
Casement windowsSimple and efficientMost UK homes
Sash windowsTraditional, vertical openingPeriod properties
Bay windowsAdd space and lightLarger homes

Cost of French Windows

The price depends on size, material, and glazing. As a rough guide:

  • uPVC French windows – £400–£900 per unit.
  • Timber French windows – £700–£1,300 per unit.
  • Aluminium French windows – £800–£1,500 per unit.

Installation costs will vary, especially if structural changes are needed. It’s best to get several quotes from local suppliers.

Summary

So, what is a French window? It’s a pair of side-hinged windows that open outwards or inwards, bringing in natural light, ventilation, and style.

They’re a good choice for homes wanting unobstructed views and flexible access, whether in period properties or modern designs.

If you’re considering them for your home, look for energy-efficient models, secure fittings, and installation by a trusted, certified installer. To chat with me use the contact us page here or call me on
01372 454 321.

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