Leading PVCu and aluminium doors for the trade

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For window and door installers operating in the UK, it is essential to include high-quality doors in their product lineup. Whether they need traditional or modern external PVCu doors or sleek and stylish aluminium doors, our range caters for every solution – supplying doors that are ideal for residential and commercial projects and helping our customers win new business. 

Fabricated to our uncompromising quality standards our PVCu and aluminium front and back doors are perfect for properties that want to make a statement or want to provide a link from the inside to the outdoors. 

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red traditional aluminium entrance door
white residor composite door

Stylish and secure doors

Homeowners want doors to look the part without compromising on performance and our range of PVCu and aluminium doors mean you can offer both and meet the demands of your customers. All doors are equipped with state-of-the-art multipoint locking systems as standard and provide a robust product to provide the end user with complete peace of mind. 

Homeowners also look for energy efficiency to help save them money on their energy bills and our range of doors provide outstanding thermal performance.  

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Doors for every project

Whether you have a residential project that needs a new thermally efficient entrance door, or a commercial project that needs a set of bi-fold doors to open a space up to the outside, our range of doors gives you everything you need. 

  • Equipped with state-of-the-art multipoint locking systems
  • Outstanding thermal efficiency
  • Easy installation
  • A whole host of traditional and modern styles to choose from 
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open black aluminium french door

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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Your Questions Answered

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

01925 818 700

What are the differences between PVCu and aluminium doors?

Both will suit different property styles and project needs. PVCu doors can be manufactured to mimic the appearance of traditional timber doors and are available in various colours and finishes while aluminium doors have a sleek and modern look and can be powder-coated in different colours. Ultimately, the choice between PVCu and aluminium doors depends on your specific requirements. Consider factors such as durability, maintenance and thermal efficiency.

What are the advantages of getting my doors from a single supplier?

You don’t have to source from different suppliers, which can cause a problem when it comes to delivery. Dealing with a single supplier like Sterling means you get consistent service and technical help and expertise. We supply doors that cater for any solution, meaning we can simplify your supply chain.

How easy are the doors to install?

We know how important it is to reduce fitting time, both for our customers so they can maximise their time, and for the end user so jobs can be completed in the timescale agreed. That’s why our range of PVCu and aluminium doors is easy to install.

What are the lead times on doors?

We provide two-week lead times on our doors to Warrington and beyond thanks to 24-hour manufacturing, helping us to supply high-quality doors that you don’t have to wait for at competitive prices.



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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