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. Using the Alitherm 700 profiles our windows can deliver U-values of 1.6W/m2K. Using Alitherm 300 profiles, our windows are capable of 1.5W/m2K. With Alitherm 400 and Alitherm 500 profiles, our aluminium windows can provide 1.4W/m2K. And, with the Alitherm 600 and Alitherm 800 profiles, our windows are capable of a very impressive 1.3W/m2K.



Fantastic. Had sterling out to replace all the windows on the house. Quality and price absolutely brilliant so had them back a few months later to replace our failed conservatory....

Ian Monaghan

27 August 2020


Would not go anywhere else for my windows and doors

From the initial visit I can not fault Sterling. Brooke who was very friendly quoted the best price by far and was patient and knowledgeable when choosing colours and products....

Toni Green

November 2022


Very pleased and would highly recommend!

Used this company over the years and always had great service. Brook the surveyor gave lots of advice then the fitters were faultless ,no mess,nestvand tidy and polite ( Dave...

Pauline Foster

February 2023


Best price in town

We've had all of windows recently replaced in Agate grey. New front door too. Brilliant service from Brook and the team. Fitters have done a 5 star job and cleaned...

Gaynor Tyndall

June 2023


Great service & price

Fitted new windows and a front door for us. Fitters were excellent, turned up on time, very clean, polite and helpful. Very pleased with the quality and price of the...


11 April 2023


Great price

Great price for good quality windows and doors. I had a couple of issues early on with one door being slightly misaligned in the frame and incorrect locks being fitted,...


27 March 2022


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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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