We know everything there is to know about doors. In our FAQs section, we answer some popular door-related queries.
Is every composite door the same?

We can see why you might think that, but that isn’t the case. A standard composite door has a foam filling and depth of 44mm. It also possesses a GRP colour skin (commonly known as fibreglass) and is quite lightweight.

Solid Core composite doors are thicker, with a depth of 48mm and composition of laminated layers of timber, which makes them much stronger and robust than foam filled composite doors. They also have a UPVC skin, which helps you to colour match them to your door frame.

There is a noticeable cost difference between the two solutions – have a chat with a Premier Windows advisor if you’re unsure of what composite door to buy.

Extreme Solid Core Door
Can I have two different colours on the internal side and external side of the door?

Overall, you can choose to have one colour on the outside of the door frame and a separate colour on the inside, such as if you wanted a red finish externally and white finish internally. Do whatever makes you happy! A Premier Windows advisor will verify if your colour choices are achievable.

Internal White Composite Door


You’ll find some frequently asked questions and answers below. If you don’t find the answer to your specific question, get in touch to speak with a Premier customer advisor.

How many keys would I be given?

We will give you three keys with our new door. However, if you require extra keys, just let us know when you finalise the order. Alternatively, we can cut keys for you at a later date.

Will I be able to use the same key for both doors? (Suited)

Yes, this is simple to do. Please make sure to let your Premier advisor know when placing your order so that the same key works for both doors.

What does Secured by Design mean?

We strive to make all our doors compliant with ‘Secured by Design’ – a police flagship initiative designed to ‘design out crime’ and maximise physical security. Secured by Design is a Police-approved security initiative that’s all about enhancing the security of buildings and their surroundings to make safer places to live.

We’re thrilled to announce that many of our doors meet the high standards of SBD, following extensive testing and reviews.

Making your door secured by design couldn’t be simpler, just speak to a member of our team about the various glass and accessory options.

What does a 3-star rated door barrel mean?

If a door has a 3-star cylinder you can be confident it provides heightened security. A 3-star door cylinder is the highest rated cylinder on the market. To prevent the possibility of the barrel being damaged, we include snap-secure technology with a lockdown mode to our cylinders.

Can a French door be completely folded back?

Yes! Once an egress hinge is installed, your French doors will be able to fold back fully so you can enjoy a stunning view of your garden without restrictions.

What should I choose – sliding patio doors or bi-folds?

This is a personal choice! Both our patio doors and bi-folding doors will make a stunning addition to your home, seamlessly connecting your home to your outdoor space. Our sliding patio doors have slimmer frames so they give a more full view when the doors are closed. However, a bi-folding door can completely fold back so it provides a fuller opening. Speak to a Premier advisor if you need help choosing between the two feature doors.


Our sales practices at Premier Windows & Conservatories are always honourable and we pledge to our customers to stick to our promises.


You will be treated fairly and respectfully by any Premier Windows consultant that you speak to, and they will work in your interests. Prices are never inflated, so the price you’re quoted is the price you will pay. A great deal is assured.


The foundation of our success has been exceptional quality products, first-class customer service delivery and affordable pricing. Our product mix complies with quality assurance standards because of the computer-controlled technology used to build each range.


Most of the products in the Premier Windows range come with a 10-year guarantee. It provides cover for all moving and non-moving parts and symbolises the level of confidence that we have in our items, as well as our installation standards.


Shop around and you will see that our prices are very competitive. But if you do happen to receive a cheaper quote for something of similar quality elsewhere, let us know inside 14 days and the difference in cost will be refunded – that’s our price promise.


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Want to speak with an Advisor? Give us a call on 01691 773993

Our friendly team will be pleased to help with any questions you may have.


It would be a delight to meet you in our Oswestry showroom, where we have a fantastic team of sales staff ready to assist you with your home improvement buying needs and take any questions.