In this article, we will explain what flush casement windows are and why timber is the best material for them, covering their design, energy efficiency, sustainability and longevity. 

What is a flush casement window?

Flush casement windows, popular in the Edwardian era, are a style where the opening part, known as the casement, sits flush within the frame. This creates a smooth, flat surface on the building’s exterior. Unlike other types of traditional casement windows, these windows do not protrude or have a lip or step on the window surface.

The design of flush casement windows gives a clean, streamlined appearance, working well in traditional properties where slim sections are needed, particularly on double, triple or casement window bays that have multiple windows in one frame. 

Timber casement windows with mullions and transoms
casement windows traditional house

Why choose timber for flush casement windows?

Timber flush casement windows are an ideal choice for many reasons, such as their authentic design and aesthetic appeal, as well as their energy efficiency, sustainability, and longevity. 

Aesthetic appeal

As heritage casement windows would have originally been made with timber in the Georgian, Victorian and Edwardian eras, timber is the authentic choice that is most faithful to the original architecture and will also add the most value to your property. Unlike other choices such as uPVC, timber casement windows can be made in slim, elegant sections to match the original windows, to maximise the glazed area and therefore light into your property.

Colour is an important aspect of aesthetic appeal. White is the most popular, long lasting paint colour, especially for traditional homes. Pastel colours such as sage greens and dusky greys, or even dual colours are also popular colour options. At Timbawood we can colour match our paint to any colour of your choice. 

Energy efficiency

Any flush casement design made of wood is sealed for energy efficiency; no gaps mean, simply, nowhere for inclement weather to enter your home. Timber is a naturally efficient material, and can be combined with high performance double glazing and full perimeter draught proofing to optimise energy efficiency. This will help in reducing energy and heating costs, whilst also being eco-friendly.

At Timbawood we offer a range of high performance glazing solutions, including acoustic glazing for improved noise reduction, and slimline double glazing which has the look of single glazing but the energy efficiency of double glazing.

Longevity

Our windows are made to last; we use premium materials to ensure longevity. Due to advances in timber treatments and care, the timber we use, such as Accoya, has more longevity and durability than ever. While remaining a low-maintenance option, our quality timber windows can last many decades if properly cared for and maintained.

Sustainability

Our flush casement windows are made from sustainable wood. This means the wood comes from a timber farm; the wood is grown and replaced tree for tree, meaning wild trees are not cut down to make your timber flush casement windows. The manufacturing processes for uPVC, which is derived from oil, and aluminium, are far less sustainable than manufacturing from timber, with all trees acting as a carbon store which help draw carbon from the atmosphere. 

The combination of authentic design, overall energy efficiency, lifelong sustainability and in-built longevity is a winning combination for anyone who needs new windows but is unsure of what materials to choose. Wood is a winner, making your flush casement windows with timber frames the best choice for traditional or contemporary homes.

FAQs 

We offer high performance single and double glazing. Our slimline double glazing includes specialist gas types to optimise thermal insulation. Specialist glazing options include acoustic glass for maximum sound insulation, laminated security glass, and vacuum double glazing which is our most thermally efficient glazing to date.

Yes. They can be fitted with multi-point locking systems and laminated security glass for added security. This is not just for bay windows specifically, this works for all flush casement windows.

Yes. Most are designed with double or triple glazing and insulated frames to reduce heat loss and improve energy efficiency.

 

Contact us

Discuss our wide choice of flush casement windows with our friendly team at Timbawood. Available contact methods are:

  • By phone – call us at 0208 893 4889
  • Email form – access our Contact Us page
  • Emails – you can send us emails using the email address, which is in the footer of any page