Discover the diversity of aluminium windows

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At Sterling, we understand the importance of offering trade buyers the ability to cater to their clients’ precise needs and preferences. Our aluminium windows are fabricated using leading Alitherm profiles from industry-leading specialists Smart Systems. As well as incredible strength, sophisticated slim sightlines, and incredible durability, our aluminium windows also provide a remarkable level of personalisation, allowing you to customise frame colours, glass selection, hardware elements, and window styles, creating bespoke and tailored solutions for your projects.

With an extensive range of window styles, including casement windows and tilt-and-turn windows, our aluminium windows cater to diverse specifications. Whether your projects involve residential properties or the requirements of commercial buildings like schools or offices, our windows offer the flexibility to adapt to specific needs. Embrace the fusion of practicality and aesthetics with our aluminium windows, precisely tailored to meet the unique requirements of your customers.

green aluminium casement windows

Aluminium Windows: Providing Reliable Resilience

Our aluminium windows deliver exceptional performance for installers and homeowners. Thanks to their sturdy construction and innovative thermal break design, our Smart Systems aluminium windows can achieve an impressive U-value as low as 1.3W/m2K. 

The durability of aluminium makes these windows resistant to corrosion, warping, and cracking, ensuring they withstand challenging weather conditions. Additionally, their low-maintenance nature eliminates the need for regular repainting or other upkeep. By choosing aluminium windows, homeowners can enjoy peace of mind, knowing that their investment will last for years to come, free from concerns of deterioration over time. 

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Aluminium windows: Key highlights

There are several reasons why you should choose Sterling to deliver high-quality aluminium windows for your customers. They include

  • Extensive choice: Wide range of options and design flexibility 
  • Energy Efficiency: Our aluminium windows excel in thermal performance, ensuring residential homes and commercial buildings are able to effectively retain heat and minimise heat loss. 
  • Durability: Our aluminium windows are robust, durable, stylish, functional and above all – premium quality.   
  • Environmentally friendly: Thanks to their 100% recyclable aluminium material, these windows align with our vision for a more sustainable future. 

Should you have any additional queries regarding our Smart Systems aluminium windows or require a quotation, please don’t hesitate to contact us. Our dedicated team is readily available to assist you.  

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black aluminium tilt and turn windows

Your Questions Answered.

Can’t find the answer you’re looking for? Call us today and we’ll be happy to help. 

01925 818700 

01925 818 700

What type of aluminium windows do you supply?

We are proud to offer a range of styles to suit any home or commercial property, including casement, flush sash and tilt-and-turn aluminium windows.

What type of buildings can benefit from aluminium windows?

Aluminium windows stand as a superior choice for a wide range of buildings, from residential properties to commercial establishments such as schools, hospitals, and offices. Their weather resistance, exceptional durability, and longevity make them a reliable option that offers numerous advantages to various buildings.

Why does Sterling choose to partner with Smart for aluminium windows?

We are exceptionally proud of our partnership with Smart Systems, who are renowned for being the UK’s leading supplier of aluminium systems. With their exceptional reputation for both quality and expertise, we back their products and principals which align with our mission impeccably.

Which profile systems do you use to fabricate your aluminium windows?

We use the latest Alitherm aluminium profiles from industry-leading manufacturers Smart Systems to fabricate our range of aluminium windows.

Do your aluminium windows meet current building regulations?

Yes. They meet the minimum requirements and, in most cases, exceed them. Alitherm 600 profiles are capable of a very impressive 1.3W/m2K.



Sterling, the only people to get your new windows and doors from. From start to completion, fantastic products, fantastic service and fantastic cost, the only company you will need.

Paul S

June 2024


Faultless Service and Installation

Sterling were considerably less expensive than several other competitors we got quotes from, but the quality of installation and the professionalism of the installers was spot on.


June 2024


Quick response to call

Fabulous firm, thank you so much for the quick response to call out to look at my door. Excellent service would always recommend this firm for doors and windows.

Julie Marchant

February 2024


Fantastic service

We had french doors and window fitted yesterday. Fantastic service from the installer in the quality of his work and efficiency. The french doors and the window are fabulous in...


February 2024


Friendly and professional workmen

We have used this company numerous times and never been disappointed. Good workmen, always friendly and professional, coupled with competitive pricing and quality products and workmanship. Highly recommend.

Mrs Booth - HomePro

March 2024


Exceptionally professional

From the initial costing visit, to the surveyor's visit, to the installation, Sterling PVCu have been exceptionally professional. The staff are polite, they arrived on time each day and the...

Mrs Cummins - HomePro

March 2024


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Areas We Serve

Based in Warrington, we are perfectly placed to serve double-glazing installers across the whole North West. With customers spanning as far afield as Hereford to Leeds and Birmingham to Blackpool, we have built a ‘sterling’ reputation as the premier trade frame fabricator in the North West.

With nine professional installation teams to call upon, we can supply and fit our quality windows and doors in Warrington, Manchester, Liverpool, Preston, Bolton, Chester and surrounding areas too. Get in touch today to see if we cover your area.

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