ALUMINIUM SLIMLINE WINDOWS
Whether you are building your dream house, designing a new extension, adding roof windows to an existing extension, enhancing an existing room with a picture window, or simply fitting new aluminium windows for their contemporary look, our made-to-measure systems can be designed to meet your specific requirements.
WHY CHOOSE THE DESIGNER RANGE?
Our aluminium windows are engineered for uncompromising performance and stunning aesthetics, but equally important are the options. As with all our products, you can choose from literally hundreds of colours in matt or gloss finishes, select one of the latest textured metallic finishes or even opt for one of our range of wood-grain effects. You can even have a different colour inside and out.
DESIGN FEATURES
- Certified under the Secured by Design scheme
via John Fredericks Plastics Ltd - Tested to PAS 24
- Green guide rated A
- Integrated deep head profiles for ease of trickle ventilation
- Unique polyamide thermal break design to improve thermal performance
OPTIONS
- 58mm or 70mm frame depth to accommodate varying types of applications
- Internally or externally glazed
- Glazing 24mm – 32mm
- Available for Lifetime Homes (LFT)
- Available in a range of single or dual colour and anodised finishes
- Available in the following aesthetics: Bay, Heritage and Contemporary
- Available in the following configurations: top hung, bottom hung, side hung, fixed light, multilight and French casement
THE LOOK OF STEEL, THE BENEFITS OF ALUMINIUM.
Featuring industry leading build quality, our 58BW ST aluminium windows are an ideal replacement for existing steel windows. In addition to impressive high thermal and acoustic performance, the design also replicates the minimal sight lines associated with steel windows, whilst providing superior performance and security.
WINDOW HANDLE OPTIONS
- Contemporary, sculptured cranked handle available in both LH & RH variants
- Push to release locking mechanism
- Attractive, flush fitting push button
- Secure, key locking
- Colour-coded push button & screw cover cap
- Retrofit spindles available in profile specific sizes
- Easy-fit push button insert converts handle to Egress type in second
Aluminium Windows
South Lakes Windows Ltd installs contemporary aluminium windows for homes across Lancashire, Cumbria and North Yorkshire. Built with precision and designed for lasting performance, our made-to-measure aluminium window systems are a strong choice for homeowners seeking a modern, slimline look without compromising on durability or thermal efficiency. Whether you’re fitting new windows as part of a self-build, designing a stylish extension, replacing dated frames, or introducing large-format glazing to capture views, our aluminium range is designed to meet your individual requirements.
Aluminium Slimline Windows for a Modern Finish
Aluminium windows are well known for their slim sightlines and sleek, clean frames. This makes them ideal for both contemporary homes and traditional properties undergoing modernisation. Thanks to the strength of aluminium, the frames can be much narrower than other materials while still supporting large panes of glass. The result is a wider glazed area, more natural light and a refined architectural look. Slimline aluminium windows are a popular choice for clients extending their homes with open-plan layouts, floor-to-ceiling glazing, or rooms designed to connect inside and outside spaces. Their understated design complements other elements such as aluminium sliding doors, roof lanterns and picture windows.
The Designer Range: Engineered for Choice and Performance
Our Designer Range of aluminium windows is manufactured to the highest standards and comes with a wide variety of configuration options. Every product is made to order, ensuring the exact size, finish and layout your home needs. You can choose from hundreds of RAL colours in both matt and gloss finishes, or opt for something more distinctive with a textured metallic coating or realistic wood-grain effect. Dual colour options are also available, allowing you to match the exterior to your building’s appearance while coordinating the interior with your décor.
These windows are not only visually impressive – they are also built for year-round performance. The thermally broken frames improve insulation, and the glazing is selected to reduce heat loss, prevent cold spots and keep the room comfortable in all seasons. Acoustic glazing is available for added sound insulation, and laminated or toughened glass can be added where extra security or safety is required.
Suitable for All Types of Homes
Aluminium windows are highly versatile. They suit everything from barn conversions and countryside homes to contemporary new builds and seaside properties. Our installation team has worked across a wide range of building types and understands how to match the window style to the surrounding architecture.
Whether you’re enhancing a kitchen with a picture window, opening up a living room with large horizontal panes, or adding roof windows to an existing extension, we’ll help you design a layout that suits your space and priorities.
Performance You Can Rely On
One of the biggest advantages of aluminium is its stability. The material does not warp, swell or shrink with changes in temperature and moisture. It requires very little maintenance and resists corrosion and rust, even in coastal environments. This makes aluminium windows a sound investment for long-term performance. All of our windows are fitted with high-security locking systems and tested to meet current building regulations. With energy-efficient glazing and strong weather seals, you can expect reliable performance that lasts for decades.
Installed by Professionals Who Know the Area
We supply and fit aluminium windows across Kendal, Morecambe, Lancaster, South Lakes, and Kirkby Lonsdale, along with many other towns and villages in the region. With years of experience and a strong understanding of local property styles, we’re trusted by homeowners looking to improve their homes with minimal disruption and clear communication throughout the process. From planning and measuring through to installation and aftercare, our team handles the whole process. We work cleanly and efficiently, taking pride in both the fit and the finish of every window we install.
Why Choose Aluminium Windows from South Lakes Windows?
Aluminium windows are ideal for customers who want slim, contemporary frames with excellent strength and durability. With flexible design options, high-performance glazing and a wide range of colour finishes, they’re suited to everything from full house renovations to one-off installations.
Our Designer Range offers:
- Slimline frames for a minimalist appearance
- High strength with reduced frame depth
- Hundreds of colour and finish options
- Dual colour availability for internal and external contrast
- Custom sizing and layout to match your home
- Full compliance with energy and security standards
Ready to Get Started?
If you’re planning to install new aluminium windows or replace existing ones, contact South Lakes Windows Ltd. We’ll talk you through the design options, recommend the most suitable styles, and provide a clear, no-obligation quote.
Contact our team today to arrange a home visit or to discuss your aluminium window project in more detail.