High-Quality Products at Competitive Prices

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At Sterling, we specialise in the fabrication of trade windows and doors, using both PVCu and aluminium profile systems. With over 30 years of experience, we have become a leading manufacturer and supplier to the industry, with customers stretching from Hereford to Leeds and Birmingham to Blackpool.

Our team of 110 skilled professionals work diligently in our three state-of-the-art factories and are committed to providing our customers with high-quality products built to last. Our windows and doors are manufactured using the finest quality materials and cutting-edge technology to guarantee durability, energy efficiency, and optimal performance. We understand that modern homeowners value products that are both functional and aesthetically pleasing, which is why our windows and doors are available in a wide range of styles, colours, and finishes.

Why Choose Us?

Superior Quality

Our windows and doors are built to the highest standards, ensuring exceptional quality and durability.

Competitive Pricing

At Sterling, we provide top-quality products at competitive prices, offering excellent value for money.

Excellent Customer Service

Our team of experts is committed to delivering exceptional customer service, providing guidance and support throughout the entire process.

2-Week Lead Time

With our efficient manufacturing process, we can offer a quick 2-week lead time on standard products, helping installers meet tight deadlines.

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. 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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Manufacturing All Products In-House

Unlike many other suppliers in the industry, at Sterling, we manufacture all our products in-house. This gives us complete control over the manufacturing process, allowing us to ensure consistent quality and customisation options to deliver a product that matches your exact requirements.

One of our key advantages is our 24-hour manufacturing operation. This means that we can promptly fulfil orders and keep lead times to a minimum – typically just two weeks for our standard product ranges. We understand that time is of the essence for installers and we strive to deliver our products as quickly as possible, ensuring that our customers can rely on us to meet their deadlines.

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Investing in the Future

At Sterling PVCu, we are passionate about continuously improving and investing in our business. We believe that staying ahead of the curve is crucial in delivering the best products and services to our customers. That’s why we regularly invest in new machinery and technology from Haffner to enhance our manufacturing capabilities. Our commitment to innovation allows us to stay at the forefront of the industry and deliver cutting-edge solutions to our customers.

Our goal is not just to meet your expectations but to exceed them. We understand that your project is unique, and we will work closely with you to deliver a solution that perfectly matches your requirements. Contact us today to see how Sterling can help your business thrive.

As a privately-owned entity, our commitment to innovation and growth is a top priority. This investment not only secures our own future but extends its benefits to the local community. By providing future employment opportunities to the people of our local area, we are not just driving our business forward, but also contributing to the local economy.

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full house of upvc casement windows
factory making white window frames

Our History

Established in July 1993 by Andy Wells and three partners, Sterling began in a small unit on Winwick Quay. Over the years, our success led to expansions across several units on the Winwick Estate.

In 2005, we moved to a larger unit in Woolston on Chesford Grange, and in 2009, we fully transitioned to Chesford Grange, now operating from three spacious units where we manufacture PVCu, composite, and aluminum products.

With 30 years of experience, Sterling proudly serves trade customers and the public in the North West, Yorkshire, North Wales, and the Midlands. We value our local team and continue to prioritise exceptional quality and customer satisfaction.



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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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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