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Home / Home Improvements / Double Glazing / Double Glazing Prices

Double glazing prices 2018

Looking for 2018 prices for double glazing? The price you'll pay for an installation will vary depending on

  • the number of double glazed windows you want fitting,
  • the size of those double glazed windows, and
  • the frame used to hold the double glazing.

In this article, you'll find out approximate prices for everything double-glazing related, from double glazing costs for a 3-bed semi to prices for flats and even the latest in double glazing style, the bow window.


Why get double-glazing prices for your home?

Many people start their search to find out double glazing window prices online. If you're looking for a double glazing prices guide, you've come to the right place. Better still and you can see this towards the end of this page, you can get free quotes with no obligation on prices of double glazing and double glazing costs per window from trusted traders by filling in a simple form.

Let's start by looking at average local double glazing prices for homeowners choosing to work with an independent and reliable contractor based close to where they live.


Double glazed window prices - houses and flats

First, let's look at the average UK installation. This will give you a good idea of double glazing costs UK-wide. The prices shown below include installation and they describe the type of property and the number of windows in each installation, as well as the type of frame used.

Size Windows needed uPVC Aluminium Wooden
Apartment 4 £2,100 £2,250 £3,450
Two-storey home 8 £4,500 £4,850 £7,200
Two-storey home 12 £6,700 £7,200 £10,850
Two-storey home 16 £9,000 £9,700 £14,450

Fitted uPVC double glazed window frame prices

Although the cost of the window remains the same, the total cost including installation varies according to whether the double glazed window is fitted on the ground floor or the first floor. Here are the latest approximate prices in 2018 for fitted upVC double glazed window frames.

Size Floor Approximate Price Floor Approximate Price
60cm x 90cm Ground £535 First £590
90cm x 120cm Ground £815 First £870
120cm x 120cm Ground £865 First £935

Fitted aluminium double glazed window prices

Aluminium frames are slightly more expensive than uPVC frames. They're much stronger than uPVC frames and, as they are recyclable, they're far more environmentally friendly. They can hold thicker panes of glass than uPVC meaning that you benefit from greater insulation from your choice.

Size Floor Approximate Price Floor Approximate Price
60cm x 90cm Ground £575 First £640
90cm x 120cm Ground £695 First £760
120cm x 120cm Ground £820 First £895

Fitted wooden double glazed window prices

Wood is a natural insulator and aesthetically, many homeowners think it's a better choice than either uPVC or aluminium. You can apply a much wider range of effects to wooden frames offering you the opportunity for real personalisation.

Size Floor Approximate Price Floor Approximate Price
60cm x 90cm Ground £880 First £935
90cm x 120cm Ground £1,275 First £1,355
120cm x 120cm Ground £1,385 First £1,460

Double glazed casement windows prices

Double-glazed window frames come in four main styles, the most popular and economical of which are casement windows.

Casement windows open from either the side or the top using hinges. The windows themselves can be kept open for long stretches of time, perfect for letting fresh air in and encouraging ventilation.

Size Colour Approximate Price Colour Approximate Price
50cm x 50cm White £160 Wood Grain £190
100cm x 50cm White £190 Wood Grain £225
100cm x 100cm White £210 Wood Grain £250
120cm x 120cm White £250 Wood Grain £275

With one opener, the cost will vary like this…

Size Colour Approximate Price Colour Approximate Price
50cm x 50cm White £275 Wood Grain £325
100cm x 50cm White £300 Wood Grain £350
100cm x 100cm White £325 Wood Grain £375
120cm x 120cm White £385 Wood Grain £425

Double glazed French casement windows prices

French casement windows open much further than standard casement window and are well-known for their low maintenance requirements. They're great for ventilation and feature high security locks for those concerned about security or children's safety.

Size Colour Approximate Price Colour Approximate Price
50cm x 50cm White £475 Wood Grain £600
100cm x 50cm White £500 Wood Grain £625
100cm x 100cm White £525 Wood Grain £650
120cm x 120cm White £550 Wood Grain £700

Double glazed sash windows prices

Sash windows usually have anywhere between two to six smaller frames separated by bars. They're reminiscent of the types of windows you find in older properties and are favoured by many homeowners for their impressive appearance.

Size Colour Approximate Price Colour Approximate Price
50cm x 50cm White £560 Wood Grain £670
100cm x 50cm White £650 Wood Grain £750
100cm x 100cm White £675 Wood Grain £775
120cm x 120cm White £775 Wood Grain £900

Double glazed tilt and turn windows prices

Tilt and turn double glazing is one of the latest styles of window in the market. They actually open inwards into a room using a hinge found at the base of the window. Because they tilt inwards, rain does not get into your rooms and they're much safer to have around younger children.

Size Colour Approximate Price Colour Approximate Price
80cm x 80cm White £425 Wood Grain £550
100cm x 80cm White £475 Wood Grain £575
100cm x 100cm White £500 Wood Grain £600
120cm x 120cm White £525 Wood Grain £650

Double glazed dual turn windows prices

A development on from the tilt and turn windows, they use the same technology and operate in the same way but they look much more like a sash window.

Size of window Approximate price per window
80 cm squared £495
100 cm squared £550
120cm squared £595

Double glazed bay windows prices

An evergreen and popular style of window, bay windows project outwards from the wall of your home to form a bay in your room. Much more expensive than standard windows, a bay window is a very desirable feature on your home and it may add to your property's value. The prices in the first table are for a bay window which has four sections to it…

Size Colour Approximate Price Colour Approximate Price
240cm x 120cm White £1,100 Wood Grain £1,200
240cm x 150cm White £1,175 Wood Grain £1,300
300cm x 120cm White £1,200 Wood Grain £1,325
300cm x 150cm White £1,300 Wood Grain £1,425

For a four-section bay window, these are the current 2018 prices you can expect to pay…

Size Colour Approximate Price Colour Approximate Price
300cm x 120cm White £1,450 Wood Grain £1,575
300cm x 150cm White £1,550 Wood Grain £1,700
360cm x 120cm White £1,550 Wood Grain £1,700
360cm x 150cm White £1,650 Wood Grain £1,825

And for five sections, these are the approximate costs…

Size Colour Approximate Price Colour Approximate Price
360cm x 120cm White £1,925 Wood Grain £1,975
360cm x 150cm White £2,025 Wood Grain £2,125
400cm x 120cm White £1,975 Wood Grain £2,075
400cm x 150cm White £2,125 Wood Grain £2,225

Double glazed bow windows prices

Think of bow windows as wider but flatter versions of bay windows. They're highly thought of in design and architecture circles because of the superior view that homeowners get on either the garden or street. Below are the prices for bow windows with three sections…

Size Colour Approximate Price Colour Approximate Price
240cm x 120cm White £1,100 Wood Grain £1,200
240cm x 150cm White £1,175 Wood Grain £1,300
300cm x 120cm White £1,200 Wood Grain £1,325
300cm x 150cm White £1,300 Wood Grain £1,425

For a four-section bay window, these are the current 2018 prices you can expect to pay…

Size Colour Approximate Price Colour Approximate Price
300cm x 120cm White £1,450 Wood Grain £1,575
300cm x 150cm White £1,550 Wood Grain £1,700
360cm x 120cm White £1,550 Wood Grain £1,700
360cm x 150cm White £1,650 Wood Grain £1,825

And for five sections, these are the approximate costs…

Size Colour Approximate Price Colour Approximate Price
360cm x 120cm White £1,925 Wood Grain £1,975
360cm x 150cm White £2,025 Wood Grain £2,125
400cm x 120cm White £1,975 Wood Grain £2,075
400cm x 150cm White £2,125 Wood Grain £2,225

Double glazing prices fitted – stay safe

Double glazing has come a long way in 40 years. It used to have a bad reputation for making customer pay far too much for what they were getting. Like all industries do when there are a few bad apples, the fairly-run companies got together to form trade associations.

Trade associations, you might think, only represent the trader. To a point they do but they're there as a statement of a company's intent to be fair, open, and transparent with customers. If too many people complain to a trade body about a company, that company is thrown out. If a company does not follow the rules, that company is thrown out.

By protecting consumers, trade bodies protect the industry too. Make sure that, when choosing an installer, they are registered members of FENSA (the Fenestration Self-Assessment Scheme) or CERTASS (the Certification and Self-Assessment Scheme).


Double glazing prices best deals

With many double-glazing companies, there are always deals to be had. Double-glazing companies want your business and they want you to write great reviews about their installation and how they looked after you on the internet.

If you're on a budget and want double-glazing for your home, what should you ask a potential installer?

Energy efficiency

Many installers may want you to install the very latest in energy-efficient double-glazing. While the very best is the very best and it may be tempting to you, you could ask your installer to quote you for an installation with an B or C rating in its Energy Performance Certificate (EPC). As time has gone on, the difference between the different grades gets smaller and smaller so whilst it won't be the very best, it will still be extremely good.

Is there an offer on at the moment?

Many companies run offers at different times of year for different reasons. It may be worth keeping an eye on companies' websites to see if there are any special offers available to you.

Is the person you're dealing with open to the idea of a discount?

When a company is not as busy as it wants to be, they still have to pay all their staff, their rates, the rent, the accountant, as well as everything else. While they may not want to do a discounted deal, having some money coming into the company account is better than having nothing at all.

It's not very British but you might want to haggle by taking whatever quote they give you to start off with and deducting 30% from it. If they come back with a discounted price after that, you might just save yourself a few hundred pounds.

Can double-glazing be fitted into your existing window frames?

In some homes, the existing window frames you have might be strong enough to house the heavier glazing panes. Ask your installer to check your window frames and, if they are suitable, get him or her to quote on them.

Should you do the whole house in one go?

It's more economical for the double glazing company to fit all of your house in one go rather than over three or four jobs. Why? Because they know their fitters will be busy earning money and they'll be able to order the double glazing in bulk from their manufacturer which will give them an extra discount.

Only say "yes" on the spot if you're absolutely sure

A few double glazing companies aren't really double glazing companies. What do we mean? They're more like sales organisations who have chosen double glazing as the product they wish to sell.

The difference that makes to you is in cost. The telemarketer, the door canvasser, and the sales rep all will be making commission from your sale – with a sales rep, that might be up to 15% of the order value. If you order double glazing and it costs you £5,000 plus VAT and the sales rep is getting 15% commission, that's £750 on the price straight away.


Double glazing window prices UK – what's in a quote?

What should you look for in a quote from an installer? Of course, you want to make sure that they have the experience to do a great job when installing your double glazing. You also want to make sure that they're a company which is here to stay. But when you get that all-important quote, if one of the following is not included, be sure to ask before you decide for or against using a particular company.

Have they done a survey of your home?

Every home is unique and you need to be sure that they've done a full survey of the walls and frames that will hold your new windows in place.

What about energy efficiency ratings?

The more energy efficiency the rating of the window, the more money you will save in the long run on heating bills. However, bear in mind that those with higher energy efficiency ratings will cost you more to install.

Will type of glass will they be using?

There are a number of different types of glass they can use in your installation, including annealed float glass, tempered toughened glass, laminated glass, low E glass, self-cleaning glass, noise control glass, fire protection glass, and decoration glass. Make sure you tell your installer the qualities you would like from your double glazing and ask him or her to provide comparative quotes.

Will there be handles on the windows and, if so, how many?

Windows can be supplied with and without handles. Most people prefer one or two handles on each window so make sure you know exactly what you're getting so there's no nasty surprise waiting for you on installation day.

Every detail about your installation

Ask your installer to about the external sill, trims, silicones, fixings, and sealants used on your installation.

What will happen to your old windows (and doors)?

The last thing you want when your new windows are installed is for your old windows to be left in the garden. Make sure that, as part of your quote, your installer agrees to take away your old windows and have them legally disposed of.


Choosing an installer to fit your double glazing

Who do you choose to install your double glazing? It's always a difficult decision – all decisions that involve spending a lot of money are hard. It's also difficult to rely on double glazing costs calculators you might find online – they're never as precise as you need them to be.

The best thing you can do is to get three or four quotes from trusted, certified local installers. Fill in the form on this page and we'll put you in touch with these companies who will be very happy to provide you with a free and no-obligation quote on your new windows. All of our partner installers are FENSA and CERTASS approved.

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