Fantastic Products. Even Better service.

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We fabricate a comprehensive range of home improvement products, providing installers with a reliable and efficient supply of windows and doors. Our 24-hour manufacturing facilities mean we can deliver within short lead times of just two weeks, while in-house quality checks ensure each product meets the high standards our customers deserve and expect.

Our range of PVCu products is engineered using Eurocell’s profile systems, our aluminium windows and doors are fabricated using premium Smart Systems profiles, while we also manufacture composite doors from Distinction Doors. This puts Sterling in the perfect position to provide homeowners with multiple choices for stylish, thermally-efficient, and high-quality solutions suitable for all types of properties.

upvc flush sash window

PVCu Windows

PVCu Windows

Upgrade your trade projects with our durable PVCu windows. Enjoy seamless installations, energy efficiency, and superior aesthetics with our full range of styles. Impress customers and stay ahead of the competition.

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black aluminium casement window

Aluminium Windows

Aluminium Windows

Provide your customers with the very latest sleek and stylish, energy efficient and highly secure aluminium windows, and take advantage of this growing sector with our comprehensive range of products.

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grey tiled roof conservatory



Available to suit all common conservatory styles including Edwardian, Victorian, and Lean-To types, our modern double-glazed conservatory roofs, Equinox tiled roof systems, and SkyPod roof lanterns are quick and easy to install and yield stunning results.

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eurocell front door

PVCu Doors

PVCu Doors

Crafted for durability and style, our PVCu doors offer seamless installations and exceptional security. Impress your customers with modern designs and superior quality. Upgrade your product offerings today and set your business apart from the competition.

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grey aluminium bifold door

Aluminium Doors

Aluminium Doors

With our modern range of aluminium doors, you can offer your customers a range of stunning entrance options, including front doors, bi-folds, French doors, and sliding patio doors - all made from durable and sleek aluminium for a contemporary finish.

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blue distinction composite door

Composite Doors

Composite Doors

Offer your customers the latest range of stylish and secure composite doors. With a huge selection of traditional and modern styles, plus stable door and French door variants, our range of secure, thermally efficient composite doors is sure to impress.

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Our Factory

As a specialist fabricator of PVCu, aluminium, and composite home improvement products for 30 years, at Sterling, we are proud to have a facility dedicated to each type of material, across the three manufacturing factories, where we produce over 1750 frames per week, enabling us to offer short lead times of just two weeks on our standard product ranges.

Constantly re-investing in equipment and the latest machinery means our state-of-the-art factories are ready to tackle any request, delivering a superior product that meets the demands of installers and homeowners alike. Get in touch to see how Sterling can help you today.

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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

Conveniently based in Warrington, we are ideally situated to serve trade buyers throughout the North West of England. Whether you operate in Manchester, Liverpool, Chester, Wigan, or any other city in the region, we have you covered. The extensive fleet of vehicles ensures that your products reach you promptly and safely, allowing you to focus on what you do best – delivering exceptional installations to your customers.

With customers spanning as far afield as Hereford to Leeds and Peterborough to Blackpool, we have built a ‘sterling’ reputation as the premier trade frame fabricator in the North West. But it doesn’t matter where you are based, we’re happy to provide quality products for double glazing installers all over the UK. Contact us to find out more.

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Get A Free Quote Today

If you’re looking for a reliable windows and doors supplier, you’ve come to the right place. At Sterling, we understand the unique needs of trade buyers like you. Our sales representatives are knowledgeable, friendly, and always ready to assist you.

We understand that time is of the essence, so we’ve made it easy for you to get started. Simply request a quote today, and our team will promptly get in touch with you to discuss your requirements and provide you with a competitive price.

Contact us today for a free quote.


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