5 Star leaves you totally spoilt for choice, which does make it a little difficult deciding what type of windows to buy. Our FAQs are worth reading as they should help.
What's the difference between flush and casement windows?

The casement refers to the moving section of the section – the bit that opens and close. A standard (or ‘lipped’) window features a casement that sit proud of the surrounding window frame.

A flush casement window has casements that totally sit level with the frame, giving it a neat, understated appearance. If you come into one of our showrooms, you will be able to see examples of both windows and can identify the difference for yourself.

Oak Envisage Flush Windows
Should I decide Double Glazed or Triple Glazed Windows?

Firstly, if you hadn’t guessed already, a double-glazed window has two glazed units, while a triple glazed window has three glazed units. Both options promise a host of benefits. Discuss them with a 5 Star advisor to help you decide if double glazing or triple glazing is going to most satisfy your requirements.

In general, a triple glazed window does a better job of retaining heat and blocking out draughts. If a triple glazed window is correctly specified, it can also help with shutting out external noise, ideal if you live on a busy road. This is just one of various options for noise reduction.

Windows Guarantee


If you have any questions at all, just speak to one of our friendly advisors for advice. We have tried to answer some of the most common questions they get asked below.

What is the difference between PVC Windows, PVCu Windows & UPVC Windows?

They’re all the same product and in fact, they should be called PVC-U windows.

Back in the 1980’s, the name changed to PVCU in the UK to bring us in line with other European countries. Apparently, they were all calling it call it PVC-U because European languages mostly place the noun (being PVC in this case) before the adjective (U).

‘PVC’ is the shortened form of Poly Vinyl Chloride, with the ‘U’ standing for Un-plasticised. Poly Vinyl Chloride, between known as ‘PVC’, is altered for manufacturing products like bags, shoes, and fake leather, which is why so many of us know it best as ‘PVC’.

You cannot use pure PVC-U for crafting windows and doors. It needs a series of additives to make it last and for weathering and UV resistance. You also can only achieve the white colour with these essential additives.

What colour options will I have for my replacement windows and doors?

White windows are far from the only choice nowadays. We supply our replacement windows in a fantastic array of finishes.

You may be content with white or cream windows, but if you’re not and you want something outside of these classic colours, think about grey, green or black colours, such as Anthracite Grey. Hazy Grey, Matt Black and Olive Grey.

There’s a fabulous selection of woodgrains, such as the beautifully rich and elegant Rosewood, or light oak effects, together with various smooth finishes and statement colours, like Chartwell Green, Dark Red and Steel Blue.

Why not combine colours if you want more than one finish, with differing internal and external colours?

Can you tell me what an 'A' rated window is?

All energy efficient windows sold in the UK are energy labelled from A+ – G, a bit like white goods e.g., fridges, freezers, washing machines. Pay attention to the Window Energy Ratings (WERs) when buying.

If you want the most energy efficient windows available, you want some A+ rated windows, as defined by the BFRC Rating Scheme. This scheme is the UK’s national system for rating the energy efficiency of a window, recognised within Building Regulations as showing compliance with the relevant rules.

We would strongly recommend that you buy windows with an A or A+ rating as they will keep your home well-heated.

It is compulsory for replacement windows to have a minimum WER of C or above. A 5 Star advisor can give you more information about WERs.

What does U-Value mean?

The U-Value of a window signifies how effective a window is at retaining heat inside a home and stopping it from escaping. A U-Value is measured in Watts per square metre, or W/m2 K. The lower the U-Value, the better the heat retention offered by a window.

Any new or replacement window must have a minimum U Value of 1.6 W/m2 K. For guidance with U-Values, just speak to a 5 Star advisor.

What does Secured by Design mean?

Secured by Design (SBD) is a Police-run initiative that is all about designing out crime and making buildings and their immediate surroundings more secure.

SBD’s product-based accreditation scheme – the Police Preferred Specification – is the acknowledged standard for products specifically designed to deter and minimise crime. This includes domestic windows and doors and their integrated components, such as locks and hinges.

Conservatory Outlet, our sister manufacturing company and part of the Conservatory Outlet Group, is a fully-fledged member of Secured by Design, so our products meet the necessary secure standards. If security is a big concern, inform a 5 Star advisor of this when discussing your window requirements.

Do you manufacture your windows?

We certainly do as 5 Star is a member of the Conservatory Outlet Network and its sister company, Conservatory Outlet, is one of the UK’s leading manufacturers of UPVC and aluminium windows. The windows are built in Conservatory Outlet’s hi-tech manufacturing facility in Wakefield, West Yorkshire.

The close relationship we have with our manufacturer helps us to monitor our supply chain and ensure that the quality of our products is continuously high and never drops in quality.

Is 5 Star Windows & Doors a member of FENSA?

Yes, and we have been members of FENSA (Fenestration Self-Assessment Scheme) for several years now. The scheme was setup by the Glass and Glazing Federation (GGF) and various other industry bodies and is Government-endorsed.

It is a legal requirement that any replacement windows and doors comply with current thermal performance standards, and you will also need a FENSA certificate, proving that the windows comply with building regulations.

Being a FENSA member also entitles us to self-certify compliance with building regulations for any replacement window installation.

How much will replacement windows and doors cost?

No home is ever the same, so it isn’t easy to give you an estimate of what it will cost until we know more about your home and what you want.

5 Star will specially tailor your new windows so that they work with the relevant openings and fittings. You also must remember that we have loads of colour and performance options to choose from, so pricing up your windows can only really be done once we know your requirements and have measured up.

we can talk everything through together, either at your home, or if you prefer, via a Zoom call.

Just fill in your details on one of our contact forms and an appointment date and time will be arranged.

How long will an appointment with your designer take?

Normally, it will take around 1 hour. We find that this is usually enough time for the designer to listen to your requirements, note down any measurements and introduce you to the most suitable window and doors options for the project.

How long will it take to install my new windows and doors?

That completely depends on the job at hand. For instance, it will obviously take longer if there are lots of windows and doors that need to be fitted as opposed to just a few. To give you a rough estimate, it will usually take about 3-4 days for a completed installation. A 5 Star advisor will tell you more about timescales.

Do you provide finance options?

Yes, we do. You can spread the cost of paying for your new windows and doors with one of our easy payment options (subject to application & status). It’s simple to make a finance application and you won’t be kept waiting long to find out if it has been successful. Finance can be organised in your local 5 Star showrooms or at your home.

When our finance is approved, what do we do next?

When arranging your own finance, get in touch with us as soon as it has been approved. If you organise it directly with 5 Star, the finance company will contact us both, so you don’t need to do anything, and we’ll be in touch.

What happens if finance is refused?

There could be any number of reasons why you are turned down for finance, such as if you have moved several times in the last few years. When this happens, we will do what we can to help. It could always be worth trying a provider who knows you.

How long will approval for finance take?

You may get an immediate ‘yes’ from the finance company or it could take a few days for approval to be granted. Any delay in receiving approval, or otherwise, could be down to various things, so don’t be alarmed.


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This finance option allows you the convenience and flexibility of spreading the cost of your home improvements over 60, 120 or 180 months*. You must make the minimum repayment each month. However you can also make additional payments and therefore control the length of the loan and the amount of interest you would pay. No security is required on these loans. These calculators are for illustrative purposes only and do not constitute a credit quotation. *180 months finance only available for orders over £7,500.

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Cash Price
5% Deposit
Total Amount of Credit
Duration of Agreement
60 Months
Rate of Interest
4.1% p.a. fixed
Representative APR
7.9% APR
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Pay a 15% deposit when you order and, and as long as you pay the outstanding balance in full before 9 months has elapsed (plus a £29 exit fee), no interest will be charged. You will have 9 months to clear the balance to avoid paying any interest (except the £29 exit fee). If, after 9 months, this is not convenient, you can pay in 120 monthly instalments at 11.9% APR Representative. *Deferred for 9 months from the date of completion - £29 exit fee applies if the loan is repaid in full during the deferral period and NO INTEREST will be paid. For legal reasons the Representative Example shows interest IF the outstanding balance is NOT paid before the 9 months has elapsed. No security is required on this loan. These calculators are for illustrative purposes only and do not constitute a credit quotation.

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15% Deposit
Total Amount of Credit
Duration of Agreement*
129 Months
Rate of Interest
7.5% p.a. fixed
Representative APR
11.9% APR
120 Monthly Payments
Total Amount Payable
Settlement Fee


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