Aluminium Windows

Cornwall’s local home improvement specialists

for over 25 years

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Aluminium Windows

  • If you’re looking for a strong and durable choice of window frame that brings more light into your home, aluminium might be just the choice for you. A popular choice, its slim nature means more glass surface area and in turn, more light and better views from your home. 

    All aluminium windows are made to your specifications in our bespoke factory. We can help, whether you want a coordinating window to match up with your original steel windows, or you’d like a beautifully-crafted feat of architecture. 

    Not only do we have a vast selection of colours in various finishes, but there are also 85,000 components to choose from. You’ll be sure to find a perfect fit for the style of your home. 

    Whilst aluminium is lightweight and slim, it’s actually one of the most robust materials you can choose. Rust-resistant and demanding very little maintenance (if any at all), aluminium windows are sure to keep your home safe and secure; they’re known for being difficult to break into.

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    Lifetime Guarantee
    10-year manufacturer’s guarantee.

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    Tailor Made
    Classic windows tailor made to your exact specifications.

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    100% Satisfaction
    Award winning customer service and after-care support.

  • Aluminium windows are lightweight, strong and durable – aluminium offers you choice and unsurpassed quality, whether you want to match slim historical steel windows or create an architect designed masterpiece. We offer an unlimited range of colours in a variety of finishes and a choice of over 85,000 components, aluminium is perfect for that special project.

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    Flexible monthly payments

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    Interest free credit

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    Buy now / pay later

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Aluminum offers you choice and unsurpassed quality

When used in conjunction with double or triple glazing, aluminium is highly insulative, saving you money on your energy bills. A thermal break is added to the frame, preventing conductive thermal energy loss; stay warm on those cold winter days! 

Visit our local showroom to see our quality aluminium windows for yourself, or contact us for a free quote

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How long do aluminium windows last?

There are several factors that determine how long any type of window will last, including wear and tear, the degree of maintenance they receive and where they are installed. However, even with these factors in play, aluminium windows are extremely durable and have the potential to last decades with very little upkeep. With sufficient maintenance, they have been known to last 40 years before a replacement is necessary. Removing debris and dust from the frames regularly is recommended if you would like to maximise their lifespan.

What are the benefits of aluminium windows?

Aluminium is widely favoured for a number of reasons. Their slim design means more light can enter your property to give beautiful uninterrupted outside views. They don’t demand a large degree of attention, saving you time and effort; simply wipe them down and dust them off when necessary to maximise their lifespan. 

A green choice, aluminium frames are 100% recyclable, though we will always recycle your old windows, no matter what the material. Here at CTG, we’re committed to doing our bit for the planet. Elegant and versatile, aluminium windows are sure to bring a touch of class to any home.


Are aluminium windows better than uPVC?

Both styles of window have their own individual benefits. UPVC are the least costly of the two and made from a robust plastic material. Thanks to modern advancements, uPVC windows can now be just as energy efficient as their aluminium counterparts and offer the same level of security. Aluminium windows’ aesthetic qualities make them a better choice for letting light into your home and allow for beautiful unobscured views, as the frames are thinner. 

If you’re unsure about which to choose, please don’t hesitate to contact us and chat to one of our expert team.

Are aluminium windows energy efficient?

Once upon a time, aluminium wasn’t known for being the most insulative material when it came to keeping the cold at bay. Today, however, aluminium windows are manufactured to incorporate a thermal break. Sitting between the exterior and interior frame,  a non-conductive material ensures the cold is kept out of the home. 

It’s worth noting that the glazing you choose has an impact on energy efficiency. Choosing double or triple glazing can make a huge difference to whether heat is preserved inside your living spaces, especially during the winter months.

Do aluminium windows rust?

Aluminium is one of the few materials used for window designs that doesn’t rust, but it’s prone to corrosion. This isn’t an issue with CTG aluminium windows, as all our frames are treated with a special anti-corrosion coating that ensures the frames look and feel like new, even after decades of use.

Do aluminium windows rust?

Unlike many other metals, aluminium does not rust; however it does corrode. This may sound drastic, but in fact when aluminium corrodes it creates aluminium oxide, the result of the metal reacting to the oxygen in the air. Rather than weakening the metal, as rust does, this aluminium oxide is harder than the original metal itself, and it creates a strong protective layer that prevents the rest of the metal from corroding.

Unlike rusting, the corrosion of aluminium doesn’t have a significant impact on the look of the window. It can have a dull or powdery grey appearance, which is similar to the colour of the metal anyway.

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Features and benefits

Guarantees you can depend on.

We have built up a great reputation over years of delivering a first class service and excellent products, all from our local, no nonsense all-about-you company.

From characteristic country cottages to contemporary town houses, we’re confident that our products will offer a style and finish to truly transform your home. Through constant innovation the quality, durability and security of our products is genuinely second to none. As a local company we are proud to offer British Standards BS7412/PAS24 for enhanced security.

We refuse to compromise on quality

Our windows are made from British Made, high quality MarinespecTM components, with up to 25 years anti corrosion. They are built specifically for the more exposed areas of corrosion, such as coastal environments to give you worry free performance beyond your guarantee.  We believe spending more on components is worth every penny, and sets us apart from our competitors.

State of the art fabrication for best quality

We have invested millions of pounds into one of the most state of the art manufacturing facilities in the UK.  This enables us to provide you with consistently high quality products at exceptionally good prices. Our loyal factory workers are well trained and take pride in their work, they really care about quality.  Our machines are maintained according to a rigorous servicing regime to keep them in top condition.

Superior energy efficiency

Our ‘A’ rated energy efficient and triple glazed windows are tested by the BFRC, which will save you money on your heating bills. By law your windows and doors have to meet strict thermal performance regulations but you can be rest assured that our products exceed current requirements.

Energy saving is incredibly important and so is keeping your fuel bills down. We are continuously looking for ways to make our homes energy efficient and one way is to choose new PVCu windows and doors. Not only will they help to keep your home warmer, they will reduce your energy loss.

Don’t just take our word for it!

Our suppliers conform to strictly controlled and independently monitored Quality Management Systems such as ISO 9001, to ensure that everything is done correctly and according to best practise.

Our windows are tested independently by British Standards for security, weather tightness and strength performance. This means that periodically, we have to send them to independent test houses, in order to be tested to destruction.

These are just some of the many standards the products in our vast range conform to. Needless to say we take the quality of our products very seriously indeed.


Made to measure

The styles available are endless and the choices to suit your home are bigger than ever before. Traditional, contemporary or modern; our versatile window and door designs will create the look you want to complement and enhance your home. If you want windows that are as individual as you, our range of coloured and woodgrain windows offer you fifteen different colours and finishes.

A local business that really cares about its customers

Our sales consultants, surveyors, admin team and installers really care about you and your home. They are highly trained, motivated and want to go the extra mile to do the best possible job. Our fitters will treat your home with care and respect and will take time to ensure that you are delighted with the end result.

With a local showroom including an extensive display and experts on hand you can see before you buy and meet the team!

An effortless purchase process

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