Homeowners aiming to enhance elegance, natural light flow, and utility into their homes tend to prefer French doors. If you need a door replacement, wish to facilitate an open flow between different sections of the house, or wish to connect the indoor area to the garden, French doors can offer a chic answer. Like any other unit, the cost of installing French doors is heavily dependent on the material, size, and the region where the French doors will be installed.
This guide seeks to inform readers about the various costs involved in installing French doors, focusing on specific cases such as replacing sliding doors, fixing doors to already existing openings, and adding French doors to a wall or window. Whether you’re evaluating the cost to get French doors installed or looking into the french door cost and installation, this guide will offer clarity.

Costs Incurred while Installing French Doors
Let us consider some of the major cost factors before diving into cost specifics. They include door material, installation site, and modification needs. As such, the following cost issues arise for french door installations:
1: Material French Doors
The selection of material will greatly affect detailed expenditures. Some of the potential candidates include:
- Wooden French Doors: A classy and conventional option, wooden doors are meticulously crafted and beautiful. Wooden French doors range from £800 to £2500, significantly over other materials based on type of wood and design used.
- uPVC French Doors: These doors are the cheapest of the three, costing approximately £400 to £1500. They are energy efficient, low maintenance, long lasting, and of course budget friendly.
- Aluminum French Doors: Characteristic for exterior French doors, aluminum is modern and highly sought for it’s durability. Aluminum doors also, cost an arm and a leg, costing about £900 to £2500. If you’re exploring trusted UK professionals, consider working with the experienced team at Bowland Windows for reliable guidance and service.
2. Cost and Specifications
Your French doors will have a particular size, and whether you choose for them to be of a standard design or tailor-made will also affect the pricing. Generally, custom made double French doors are more costly than standard ones.
- Double Standard French Doors: These are the classic two-panel doors, and their pricing usually ranges from £800 to £2,500. This pricing can also be used as a benchmark when calculating double french door installation cost.
- Single French Doors: If the area is compact, or for use within the house, single French doors offer a better price point, often ranging from £400 to £1,500. If you are calculating the cost to install french doors interior, this range may apply.
If you are considering bespoke single doors, you will expect the price to be considerably higher as they will require more time and work to craft.
3. Setting of Installation
The setting of the doors will greatly impact the total cost. French doors tend to take more time when being mounted to internal walls. Also, external wall installations tend to require more labor, materials, and cost to French doors frame construction.
- External Installation: Mounting the French doors on an external wall is costly as it often requires cutting into the wall and strengthening the frame with additional insulation and drywall. Depending on the complexity, this type of installation could cost anywhere from £1,200 to £3,000. This is also referred to as the cost to install french doors in exterior wall or installing french doors exterior cost.
French doors give the impression of greater opening space than most doors do, as they are generally composed of several window panes forming a rectangular-shaped frame, which are ideally hinged. Whereas, hinges are mounted on the sides of the door that swings to open and attach it to its stationary side or post. French doors may serve as both entry doors and patio doors. Other uses of French doors includes enclosure dividers for two spaces in a house.
Estimates for adding interior French doors range from 250 to 1500 dollars. The construction that separates the two regions needing the French doors is relatively inexpensive. Now, what other scenarios setup French doors are installed? Along with more simple constructions, adding or replacing old sliding doors incurs more expense. This provides insight into the cost of installing interior french doors.
Subsection 1: Sliding Glass Door with French Doors Estimate
Old sliding glass doors can easily be replaced with segregated French doors troughs. This is made easy by the fact that French doors equal or outweigh the light space and outdoors view offered by sliding glass doors. Usually, the huge light pane is part of the kitchen, living room, or other prominent rooms in modern houses. French doors also take away almost zero space in the house. French doors also do no interrupt the aesthetic of the house unlike the replaced sliding glass door.
Cost Range: About £800 to £2,500 need to be set aside for the repair, replace. That is in the realm of using appropriate materials. This applies to the cost to replace sliding glass door with french doors or replacing sliding doors with french doors cost.
2. Costs for Installing French Doors into Existing Openings
If you plan to fit French doors into existing windows or doors, the installation will not be overly complicated. The pricing is also lower because no critical structural adjustments are necessary.
Cost Range: The average price for installation in an existing opening is set between £500 and £1,500. This payment covers both the French doors and the servicing. Additional payments will be required for bespoke doors and installation with enhanced materials. If you’re researching the cost to install french doors in existing opening, this section is relevant.
3. Costs for Installing French Doors in External Walls
Mounting French doors in the closed wall requires some modification such as cutting the wall, fixing structural elements, and ensuring the new doors are properly sealed and weather resistant. It suits best for people who want to establish a smooth traffic between the house and the garden or patio outside.
Cost Range: For mounting French doors in the external walls, the cost can vary depending on how large the opening is, other structural work needed, and range from £1,200 to £3,000. This is also commonly referred to as the cost to add french doors in wall or french door exterior installation cost.
4. French Doors With Installation Cost
Cost ranges for French doors and their installation varies considerably based on the doors’ material, size, and the intricacy of the work. For exterior French door installations, base-level expenses for the doors and installation usually are between £900 to £3,500. This includes the cost of the doors, professional fitting, along with any structural modification needed. This reflects the cost of french doors with installation.
5. Cost of Installing Double French Doors
For bigger openings, double French doors are a highly popular option and are wider so they add an elegant touch to wider spaces. Generally, and due to the extra materials and work needed, the installation of double French doors tends to be more costly than single doors.
Price Range: Installation of double French doors has a price range starting from £1,000 to £3,500 depending on the materials and designs used. Use this estimate for double french door installation cost.
6. Cost of Fitting French Doors
Costs of fitting French doors are directly impacted by the nature of the work required. For simply configured openings, the fitting costs tend to be lower. However, structural changes to the opening will increase costs associated with fitting.
Cost Range: The average price for French door fitting is from £200 to £700, depending on the location and the level of complexity involved in the installation. These numbers refer to the french door fitting cost. If you’re seeking skilled installers for precise French door installations rather than just purchasing the doors, it’s important to choose professionals who specialize in installation only.
Additional Considerations for French Door Installation

1. Adding French Doors Where There Used to Be a Window
In instances when you would like to convert a window into a French door, there is some wall modification needed. The installation will include breaking through the wall and expanding the area to put in the doors; cutting the frame also needs to be considered. This add-on will take considerably longer due to the changing in structure and will likely need to fortify the frame.
Cost Range: This type of work will set most people back anywhere between £1,200 and £2,500, depending on the size of the window and how complex the work is. You can look at this as the cost to install french doors where window.
2. Cost to French Doors in Wall
If there were no prior openings as a space for these doors, large portions of the wall will have to be cut away and framing will need to be added to supply the necessary support. A project of this nature will take longer than usual and will cost accordingly.
Cost Range: This type of work will set most people back anywhere between £1,200 and £3,000, depending on the construction of the wall and how complex the work is. This would be a scenario covering the cost to install new french doors or cost to have french doors installed.
3. Replacing French Doors with Sliding Glass Doors
While many homeowners upgrade from sliding glass doors to French doors, the reverse is also possible. If you’re considering modernizing or improving space efficiency, sliding doors may be the preferred choice. The cost to replace French doors with sliding glass doors will depend on factors such as door material, structural changes needed, and labor. On average, this cost ranges from £800 to £2,000, depending on the specifics of the job and finish level.
Average Price to Install French Doors

Installation costs for French doors vary based on size, materials and the type of installation. Typically, the price frame falls between £900 to £3,500, including the doors and installation. Depending on the type of installation chosen, simpler options may cost less. The use of more affordable materials such as uPVC will also bring the cost down.
- For low-end installations where simple uPVC French doors are used, costs will range between £800 to £1,500.
- High-end installations which use premium wood or custom designed doors will cost £2,000 to £3,500.
This average also reflects the average price to install french doors or the cost of french patio doors installed.
Conclusion: Is Installing French Doors Worth the Cost?
Homeowners looking to add elegance, style and extra natural light to their home would benefit from adding French doors as they act as windows and doors at the same time. French doors are more expensive and add significant value to a property which makes them a worthy investment. They can be added where sliding glass doors used to be or even where there used to be a window.
The average price falls between £800 and £3,500 which covers the entire project including the doors and their installation. French doors provide an increased light brightly illuminating a space while also improving river appeal, both of which transform the appearance of a home in a timeless manner, not to mention French doors are an investment.
Through the project’s duration, make sure to speak with local installers and cover options in-depth; also make sure to get quotes. If you balance the time you spend with understanding different aspects and costs to the decision making process, you’ll transform your French doors into a French masterpiece enjoyed for decades. Ready to enhance your home? Don’t hesitate to reach out to get quotes and expert advice for your project today.
FAQs
The average cost of having French doors installed ranges from £900 to £3,500, including the doors and labor. Costs vary based on materials (uPVC, wood, or aluminum), door size, and the complexity of the installation—whether it’s a straightforward replacement or involves structural changes.
The average price for French doors alone typically falls between £400 and £2,500. uPVC French doors are on the lower end, while wooden or custom aluminum designs cost more. This does not include installation costs.
To change a window to French doors, the cost generally ranges between £1,200 and £2,500. This includes removing the existing window, modifying the wall opening, and installing the new French doors. Structural reinforcements may add to the overall cost.
Yes, French doors are a good investment. They enhance natural light, improve ventilation, and boost aesthetic appeal—factors that increase your home’s value and visual charm. Though the upfront cost can be significant, their durability, style, and impact on property value make them a worthwhile long-term upgrade.