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Aluminium Windows

ALUMINIUM WINDOWS

Favoured by architects and homeowners alike, aluminium windows are inherently strong and stylish and can transform the look and feel of a property while also increasing its value.

With their sleek, contemporary frames, aluminium windows are a great way to invite more natural light into your home and offer unparalleled views. Featuring eco-friendly fittings to keep the cold weather out and heat in, these windows are kind to your energy bills and the environment.

Our range, supplied by reputable brands such as Cortizo, Origin and Senior Architectural Systems, means every design is functional and of the highest quality.

Pairing beautifully together, aluminium windows and doors not only enhance interior spaces but also deliver a comfortable living space. Contact us today on 01778 346611 to discuss your project.

Why Choose Aluminium?

There’s a reason why aluminium is fast becoming the preferred choice for both the commercial industry and residential properties.

Compared with uPVC and timber window frames, the material offers superior strength, requires minimal maintenance, and is incredibly durable. That means they last longer and will maintain their seamless appearance for years to come.

The aesthetics of the slim lines, the spaciousness of the wide glass, and the contemporary colour options, including black aluminium windows and white aluminium windows, make this style a popular choice for modern architecture.

Instead of being stuck with white uPVC, you can choose the frame colour you want, with some brands offering 150 RAL shades, including on-trend metallics, black, grey and pastels.

With enhanced thermal efficiency, a luxury appearance and an increased lifespan, these windows could also boost the value of your property and make it more appealing to buyers.

Get A Free Quote Brands We Work With

Brands We Work With

We are proud to be suppliers of esteemed, reputable brands, such as Cortizo, Origin and Senior Architectural Systems. By supplying a range of brands, we listen to your requirements and tailor the best window system for your unique needs. As standard, all the aluminium profiles we supply and install come with a 10-year guarantee.

Cortizo logo
Senior Architechtural Systems Logo

Our Customer Reviews

Great Price & Quick Delivery

★★★★★
This company have been amazing and came to our rescue when another company let us down repeatedly over a period of 4 months during our building work. We got a great price, a quick delivery time and the same product but this time with lovely fitters who knew exactly what they were doing. Now we will will have a warm house for christmas HOORAY !! We went for 3 large sliding doors and the quality of the product is excellent . Many thanks to Audrey Cieran and the team I would recommend highly
- Esther Young

Delighted

★★★★★
Delighted with the product and the service provided by Klosen. The installation team were excellent and very helpful.
- Sara Hyem

Very Happy

★★★★★
We’ve been very happy with the work Klosen recently completed for us. They installed a variety of windows and sliding doors for us on our new build project. All of the information we requested early on was provided promptly and they were great with our architect. Very happy with the end result and the colour they helped us chose.
- Sarah Munton

Cortizo

Crafting long-lasting aluminium windows and doors since 1972, Spanish brand Cortizo is at the forefront of contemporary design. Effortlessly combining function and form for beautiful yet practical designs, we’re proud to have transformed homes across London and the East of England with installations of Cortizo products.

A recent project includes an installation for a modern self-build in Deeping Gate, Lincolnshire. The centrepiece included a large Cortizo sliding door, chosen to help integrate the outdoor environment with the interior space.

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10 Year Guarantee

We offer a 10 year guarantee on all aluminium profiles and 25 years for the powder coating element

Thermal Efficiency

Stay warm in the winter and cool in the summer whilst cutting down on energy bills

Complete Flexibility

Our team are flexible throughout the entire process, including the design and installation of windows

25+ Years Experience

Klosen have over 25 years experience working with designers, architects and homeowners

Origin

With up to a 20-year parts warranty, Origin supply high-quality windows that are built to last. The premium-quality aluminium frames are engineered at their facility in Buckinghamshire, undergoing robust quality checks before leaving the warehouse. Crafted with a polyamide thermal break, your home benefits from enhanced thermal performance, providing future-proofed levels of thermal insulation. With a choice of 150 frame colours, you can craft the ultimate bespoke aluminium windows with finishing touches that work for your home.

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Senior Architectural Systems

Senior Architectural Systems (SAS) is a well-respected supplier of aluminium windows with crisp, contemporary designs. A consistent innovator, the British brand has committed to improving durability, thermal efficiency and security since 1991. With a choice of hardware, opening mechanisms, colours and finishes, let the team at Klosen help you bring your dream renovation or new build to life.

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modern mixed architectural style house

Explore Our Installation Projects

With an impressive portfolio to our name, ambitious projects include the Abba Arena and a Grand Designs project in Lincolnshire. Many homeowners and commercial project managers come to us with very specific requirements for what they want.

Whether they want to modernise a rural property while maintaining a sympathetic aesthetic with the surroundings, or bring as much natural light into the interior space as possible, every minor detail is covered to ensure your designs don’t just look the part, but are also 100% practical, secure and safe.

Explore our case studies to see the transformative impact of our installation work and how we work closely with our customers to bring their vision to life, while imparting our expertise to ensure a functional, long-lasting finish.

Why Choose Klosen?

For reliable and luxurious aluminium fittings, Klosen is a trusted name across Cambridgeshire with 25 years’ experience. We’re so confident in our work that all customers get a 10-year warranty, along with a 25-year guarantee against corrosion on the frame’s powder coating.

Specialists in our field, customers receive a reputable service. Let our competent team take care of the planning and installation, making sure all your boxes are ticked with fully customisable designs.

Our comprehensive window range is contemporary and sleek, with discreet framework and mechanisms. All our products and fittings are made to the highest standard by market-leading brands.

We cover projects within a 60-mile radius of our base in Market Deeping, Lincolnshire, providing aluminium windows in Peterborough, Stamford, Bourne, Huntingdon, Cambridge and London.

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FAQs

Which locations do you serve?

We work on projects for commercial properties and residents across Peterborough, Stamford and the surrounding areas. Whether you’re completing a barn conversion, or looking to upgrade an old building or office, Klosen is a trusted supplier and installer of aluminium fittings.

Are aluminium windows better than uPVC?

Aluminium windows are more durable and longer-lasting than uPVC. Due to its strength, aluminium frames can also be much slimmer, which leads to expansive views and increased natural light exposure in a property.

Are the windows environmentally friendly?

Absolutely. Our windows have impressive thermal efficiency, meaning heating bills will be reduced. Aluminium is also recyclable.

Get in touch with us today to receive your free quotation!