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Aluminium windows offer a combination of strength, slim sightlines, thermal efficiency, and low maintenance that few other materials can match. If you are weighing up your options for a new window installation or a full glazing replacement, understanding what aluminium actually delivers in practice makes the decision much clearer.
We supply and install aluminium windows across Gloucestershire and beyond. Here is what we know from doing it every day.
One of the most visible benefits of aluminium windows is the frame profile. Aluminium is stronger than uPVC for a given frame size. This means manufacturers can make the frames much slimmer while still meeting structural and weather performance requirements.
The result is more glass and less frame. More glass means more natural light enters the room. It also means a cleaner, more contemporary look that suits modern extensions and renovations well.
We find customers upgrading from older uPVC windows are often surprised by the difference slim aluminium frames make to how a room feels. The light levels improve noticeably, and the view from inside looks less interrupted.
If you want to read more about how glazing choices affect light levels, our post on how to lighten dark rooms covers this in detail.
Aluminium does not rot, warp, swell, or crack. It holds its shape across a wide temperature range, which matters in the UK where temperatures and humidity shift considerably across the seasons.
uPVC can discolour and become brittle over time, particularly in south-facing locations where it takes constant sun exposure. Timber requires regular painting or staining to prevent moisture damage. Aluminium needs neither.
In our experience, aluminium windows require significantly less maintenance than timber alternatives because there is no painting, no treating, and no swelling during wet weather that causes frames to stick. A wipe down with warm soapy water a few times a year keeps them looking new.
Our aluminium window systems come with a 10 year guarantee on installation and frames. That reflects the confidence we have in the product’s durability rather than just a marketing promise.
Early aluminium windows had a reputation for being thermally poor. Cold bridging through the metal frame made them inefficient. Modern aluminium window systems address this through thermal break technology.
A thermal break sits inside the frame and separates the inner and outer sections of aluminium. This stops heat conducting directly through the metal and dramatically improves the overall thermal performance of the window.
Our Classic and Alitherm aluminium window systems both incorporate thermal break technology as standard. When paired with high performance double or triple glazed units, they meet and exceed current UK building regulation requirements for replacement glazing.
The Alitherm system in particular delivers strong insulation performance alongside a modern aesthetic. Customers who specify it alongside aluminium bifold doors consistently report warm, comfortable rooms with noticeably lower heating costs compared to their previous windows.
For more on energy efficiency and glazing performance, take a look at our guide on bifold doors energy efficiency tips and benefits.
Aluminium frames take powder coating extremely well. The coating bonds to the surface of the metal and forms a hard, durable finish that resists fading, chipping, and corrosion.
This matters for two reasons. First, powder coated aluminium keeps its colour for decades without needing repainting. Second, it opens up a wide range of colour choices that stay looking sharp long after installation.
White, anthracite grey, and black are the most popular choices we see across our window and bifold door installations in Gloucestershire. However, custom RAL colours are available for those who want something specific to their property or design brief.
In our experience, anthracite grey works better than black for properties in exposed rural locations because it shows less weathering and dust over time. Black is a strong choice for urban and contemporary builds where a bold, high contrast look suits the architecture.
If you are thinking about colour options more broadly, our post on the best bifold door colours for your home covers the most popular choices and what works well in different settings.
Aluminium is inherently strong. A slim aluminium frame resists forced entry far better than a frame made from timber or uPVC at a similar profile size.
Our aluminium windows come with multi-point locking as standard. The combination of a strong frame material and robust locking hardware means they perform well against the most common methods of forced entry.
Toughened safety glass comes as standard across our range. Laminated glass is available as an upgrade for ground floor installations where additional security is a priority.
For more detail on how glazing choices affect security, read our post on safety toughened glass for bifold doors.
Many of our customers come to us for bifold doors and then extend the project to include aluminium windows. This makes sense for several reasons.
Keeping the frame material and finish consistent across a project produces a cleaner, more considered result. An anthracite grey bifold door looks best when the adjacent windows match in both colour and frame style. Mixing aluminium bifold doors with old uPVC windows creates a visual disconnect that undermines the overall improvement.
We supply both Origin windows and doors and Smarts windows and doors, which means we can spec windows and bifold doors from the same manufacturer on the same project. The profiles, hardware finishes, and colour options align across the range.
From working with clients in Cheltenham, Stroud, Cirencester, Bath, Bristol, and Worcester, the projects that create the strongest results are nearly always the ones where the windows and doors form part of a single, coordinated specification rather than being treated as separate decisions.
Aluminium recycles well. In fact, recycled aluminium requires only around 5 percent of the energy needed to produce primary aluminium from raw ore. Many aluminium window systems now use a significant proportion of recycled content in the frame material without any compromise to performance.
For homeowners who factor environmental impact into purchasing decisions, this makes aluminium a more straightforward choice than it might appear at first glance.
We supply two aluminium window systems at Bifold Shop.
Classic-al recreates the look of traditional timber windows using a modern aluminium system. It suits period properties, older homes, and renovation projects where the goal is to match the character of the existing building while gaining the practical benefits of aluminium. We see strong demand for Classic-al in the older housing stock across Tewkesbury, Hereford, and the surrounding Cotswold villages.
Alitherm takes a more contemporary approach. The profiles are slim, the sight lines are clean, and the system suits modern extensions, new builds, and properties with a more minimal aesthetic. Customers pairing Alitherm windows with Origin bifold doors tend to achieve the most consistent finish across the full glazing scheme.
Both systems carry our 10 year installation and frame guarantee and are available in supply only or full supply and installation packages.
The comparison between aluminium and uPVC comes up regularly. Both have their place, and we supply both. However, for anyone prioritising aesthetics, longevity, and slim sightlines, aluminium is the stronger choice.
uPVC costs less upfront, and for certain applications it remains a practical option. But uPVC frames are bulkier, the finish degrades faster, and the colour choice is more limited. For a project where the windows sit alongside aluminium bifold doors or patio doors, uPVC is rarely the right call.
We cover this in more detail in our post on aluminium bifold doors vs uPVC bifold doors, which applies many of the same principles to the door category.
Every window we supply is priced based on your specific opening sizes, chosen system, colour, and glazing specification. We do not use standard price lists because the variables involved mean no two projects are the same.
You can visit our showroom in Cheltenham to see examples of our aluminium window range alongside our bifold doors and patio doors. Alternatively, get in touch directly and a member of our team will talk through your project and provide a free bespoke quote.
We also serve customers across Evesham, Oxford, Swindon, Birmingham, London, and Stonehouse.
Use your free quoting tool for bifold doors here or use our contract form for aluminium windows here.
