Should you choose uPVC, aluminium or timber?
When choosing new double glazed windows, there is more to consider than the style of the window and the type of glass. The material of the frame will also have a significant influence on the appearance, energy efficiency, maintenance requirements and overall performance of your new windows.
The most popular options include uPVC, aluminium and timber. So, which material is right for your home?

uPVC windows: versatile, affordable and low maintenance
uPVC double glazing remains one of the most popular choices for homeowners. It offers a combination of affordability, durability, energy efficiency and low maintenance. This makes it suitable for a wide variety of properties, especially new builds.
The benefits of uPVC windows
uPVC window frames offer excellent thermal insulation. This helps to reduce heat loss through your windows and create a more comfortable home environment. They are also highly resistant to rot, rust and moisture, meaning they require very little ongoing maintenance.
Modern uPVC windows are available in a wide selection of colours, finishes and styles. This makes it possible to find frames that complement both contemporary and traditional properties. They can also incorporate modern double glazing and high-security locking systems.
Another advantage is affordability. Compared with some other window frame materials, uPVC windows can provide excellent performance with less financial outlay.
Are there any disadvantages?
While uPVC is highly versatile, some homeowners may not like the appearance of uPVC and it may not suit every property type. However, modern uPVC designs and wood-effect finishes can usually provide an attractive solution for properties where appearance is particularly important.
When would you choose uPVC?
uPVC is an excellent choice for family homes, modern properties and many traditional houses where affordability, energy efficiency and easy maintenance are priorities. It is particularly suitable when you want reliable, attractive double glazing without extensive upkeep.

Woodgrain-effect uPVC: traditional aesthetics combined with modern convenience
For homeowners who like the appearance of timber but want the practical benefits of uPVC, woodgrain-effect uPVC windows can offer an excellent compromise.
Modern woodgrain finishes can replicate the appearance of painted timber surprisingly well. This makes them particularly suitable for cottages, older homes and properties where a more traditional look is desirable.
The benefits of woodgrain-effect uPVC
Woodgrain-effect uPVC combines the low-maintenance qualities of uPVC with a more traditional appearance. It can provide excellent thermal performance while avoiding many of the maintenance requirements associated with natural timber, such as repainting or staining.
There are also various colours and finishes available, allowing homeowners to create a look that complements their property’s architecture.
Are there any disadvantages?
The main consideration is authenticity. Modern woodgrain-effect uPVC finishes can closely replicate the appearance of real timber. However, genuine timber is often required or better suited to certain listed buildings, conservation areas and heritage properties where maintaining an authentic appearance is important.
When would you choose woodgrain-effect uPVC?
Imagine a traditional East Sussex cottage where standard white uPVC would look too modern, but the homeowner wants to avoid regularly painting and maintaining wooden frames. Woodgrain-effect uPVC windows could provide the traditional appearance they want while offering the convenience and energy efficiency of modern double glazing.

Aluminium windows: slim sightlines and contemporary style
Aluminium windows have become an increasingly popular feature for modern home designs, extensions and renovation projects. Their exceptional strength allows manufacturers to create much slimmer frames while supporting large panes of glass.
This makes aluminium particularly attractive where maximising natural light and creating a contemporary appearance are important.
The benefits of aluminium windows
One of the biggest advantages of aluminium is its strength-to-weight ratio. Strong frames can accommodate larger areas of glazing while maintaining slim sightlines.
Aluminium is also highly durable and resistant to warping, making it a long-lasting choice. In addition, manufacturers design modern aluminium windows with an insulating barrier within the frame, known as a thermal break, to reduce heat loss and improve energy efficiency.
Aluminium windows are available in a wide range of colours and finishes, allowing you to choose a style that complements your home, from clean and contemporary to more distinctive designs.
Are there any disadvantages?
Aluminium windows can have a higher initial cost than some uPVC alternatives. For homeowners whose main priority is keeping the initial installation cost as low as possible, uPVC may therefore be more suitable.
When would you choose aluminium?
Homeowners and architects often choose aluminium frames for modern architectural homes, contemporary extensions, large windows and properties with extensive glazing.
For example, if you are replacing a wall with a large glazed opening or adding a modern extension, aluminium could be chosen over uPVC because its strength allows for slimmer frames and larger areas of glass.

Timber windows: authentic character and timeless appeal
For period properties, timber windows remain a popular choice. Natural wood has an authentic appearance and character that can be difficult to replicate with modern manufactured materials.
Timber can also be painted or stained in a wide variety of colours, making it possible to exactly match existing architectural features.
The benefits of timber windows
Timber provides a natural, traditional appearance that works particularly well with cottages, Victorian and Edwardian homes, listed buildings and other character properties.
High-quality timber windows can also offer excellent thermal performance when combined with modern double glazing. Another advantage is that timber can be repaired and maintained, potentially allowing windows to remain in use for many years.
Are there any disadvantages?
Timber generally requires more maintenance than uPVC or aluminium. Depending on the type of timber and finish used, periodic painting, staining and maintenance may be required. Timber windows can also have a higher initial cost.
For many period-property owners, however, these considerations are outweighed by the authentic appearance and suitability of natural wood.
When would you choose timber?
Timber is often the preferred choice for listed buildings, conservation areas and heritage properties, particularly where planning requirements or the architectural character of the building need to be carefully considered.
For example, replacing the original windows of a Victorian property with timber double glazed windows may preserve its traditional character far more effectively than installing modern uPVC or aluminium frames.
Which window frame material should you choose?
There is no single best double glazing window frame material for every property. Your choice should take into account the age and style of your home, your budget, maintenance preferences and the amount of glazing you require.
uPVC is a versatile and cost-effective option that suits most modern and traditional homes, particularly where low maintenance and energy efficiency are priorities. Woodgrain-effect uPVC is a good choice for cottages and character properties where a traditional appearance is important but homeowners want the convenience of a modern, low-maintenance frame. Aluminium is particularly suited to contemporary homes, extensions and areas needing extra-large glazing, thanks to its strength and slim sightlines. Timber remains an excellent choice for period, listed and heritage properties where authentic appearance and architectural character are especially important.
It is also worth remembering that the frame material is only one part of choosing new windows. Window style, glass specification, thermal performance, security features and professional installation all contribute to the final result.
At Swain Brothers, we can help you choose the right double glazed windows in East Sussex, taking into account your property’s style as well as your requirements for energy efficiency, security, comfort and kerb appeal. Contact us today!

