Timber Casement Doors

Timber Species     |     Timber Finishes     |     Glass Options     |     Ironmongery     |     Glazing Bars     |     Security     |     Window Cill Options     |     Cleaning & Maintenance     |     Installation & Fitting     |     FAQs

Our hardwood casement doors are suitable for single casement doors, double door sets / French doors or more sophisticated Belgian door arrangements for a wider elevation of glazing. The natural character and beauty of timber creates a beautiful transition into garden or patio spaces. Modern timber doors are a charming addition to properties, they add style and natural light to any room.

Belgravia Windows and Doors offer a breadth of unique and hand crafted styles with customisable options such as wood species, finish and the size. Each timber casement door is manufactured to bespoke sizes to meet the exact requirements of the project in hand.

Timber casement doors offer natural insulation and unbeatable beauty, while also being manufactured from a renewable and fully recyclable material.

Casement Doors...

  1. offer outstanding thermal performance
  2. offer outstanding thermal performance 
  3. perfect for replacement glazing
  4. made to order

Timber Species

Our timber casement doors are available to be made from any of the three below timbers:

Engineered Hardwood

A deciduous, exotic wood species that naturally comes in various colours and offers impressive moisture and weather resistance


A unique timber that’s manufactured using cutting-edge patented technology to achieve a timber that is not only exceptionally strong but it has a high resistance against damage from the elements. .


A highly durable timber species that’s both highly insulating and offering good acoustic reduction. Oak is a dense timber and because of this it is perfect for manufacturing doors with high security

Read more about our timber selection here

Timber Finishes

We offer various timber stains, paint finishes and oils to achieve your desired finish. Our paint finishes consist of a sealer, base coats followed by several top coats for maximum protection against harsh weather conditions. These finishes are absorbed by the surface of the timber which becomes an integral part of the timber, allowing it to still breathe while offering a water repellent surface.

To see our different stains and paint colours in person, simply call us to arrange a visit to our showroom where you can see the finishing options for your timber casement doors.

Glass Options

Our timber casement doors are made with double glazing as standard. The glass specification used is typically 4mm toughened glass, with a 16mm argon gas cavity and a 4mm toughened pane with a low E glass coating.

This specification achieves a Ug value of 1.1 W/m²K but an improved rating can be achieved with triple glazing if required.

There are also various glass options available, including solar control coatings, decorative glass, translucent glass, low iron glass and low maintenance glass are all possible.


The ironmongery is the finishing touch to any timber casement door. Whether you are looking for a more contemporary finish or a traditional style, we have a broad selection of ironmongery options for you to choose from. Not only are there a selection of styles but there is also a choice of colours and metals so you can find the perfect finishing touch to your timber glazing.

At our showroom in Amersham you can gain design inspiration and handle each ironmongery option in person. To book your showroom visit, simply contact a member of the team.

Glazing Bars

As with all of our bespoke timber doors, we can integrate a tailored glazing bar arrangement into the design of your doors. Belgravia Windows and Doors offer three styles of glazing bars which are:


Expertly crafted timber glazing bars that offer a classic style


A contemporary take on the traditional timber glazing bars to achieve a minimalistic and flat appearance.


To achieve a unique look to the door, we can design bespoke glazing bars that work beautifully with your architectural designs.

Find out more about our glazing bar designs here


Our timber casement doors are manufactured using techniques that achieve high levels of integral strength. These techniques combine traditional craftsmanship with modern methods to offer high security ratings. Combine our timber frames with an impressive glazing specification and your bespoke timber casement doors can offer outstanding security.

Window Cill Options


Belgravia Windows and Doors manufacture timber door cills by hand that match the timber and finish of the door to achieve an efficient and sophisticated finish.  


This is one of the latest door cill options that works beautifully with timber doors. This robust door cill offers outstanding durability and has an unprecedently life span.

Find out more about our window cill options here

Cleaning & Maintenance

Each timber door we manufacture is designed for minimal maintenance across its lifetime. We create hardwood timber doors that suit modern day lives perfectly as they are easy to work with and maintain.

Even though it will be minimal, your timber doors will require cleaning and maintenance occasionally. To do this you will just need to clean the wooden frames gently with hot soapy water using a sponge. To refinish the woodwork with a fresh coat of paint, we highly recommend choosing a paint that is specifically designed for timber glazing as it will have excellent weather protection properties.

Read our ‘Maintenance of Timber’ page for more information.

Installation & Fitting

Our timber doors can be installed by our in-house team. The team at Belgravia Windows and Doors have years of experience designing, manufacturing and installing timber glazing systems, so you can be sure that you’re in safe hands. Each project is given the same love and attention to create beautiful crafted timber products.

Our installation team can take charge of the entire door replacement or installation process, including removal of the existing door, installation of the new door and sealing the door in place.


bespoke wooden windows and doors


How much do timber casement doors cost?

Due to the bespoke nature of all of our products, our prices are individual to each project as each product is manufactured to the exact sizes, specification and finish for the project in hand. For an accurate cost for your timber casement doors, speak to a member of the Belgravia Windows and Doors team.

What is engineered hardwood?

Engineered hardwood or engineered timber is created through an established technique whereby layers of timber are placed on top of each other with the grain of each piece in an opposing direction to the other. This multi-layering helps to even out any movement in the timber caused by moisture or temperature, resulting in a highly durable timber.

How much maintenance will my timber casement doors need?

The maintenance of each product depends on the timber species and finish that has been chosen. We recommend yearly or twice a year cleaning of our timber framed glazing so you can check for any signs of damage before it develops into a larger problem. Every two years, we recommend a new coat of paint to maintain a good protective coating for the timber. For further information read our maintenance of timber page.

With years of experience in the supply and installation of timber framed windows and doors we can offer a tailored service to each client. Whether you are a homeowner or an architect; our experienced team can help advise on the best solution for your project.