How much does double glazing cost? Our double glazing price guide provides you with all the information you need in order to make an informed decision on your windows, doors or conservatory.

Being aware of double glazing costs is essential if you want to get a good deal but exactly how much can you expect to pay? How much is double glazing?

The Average Cost of Double Glazing

Average double glazing costsTo start, uPVC double glazing costs are around 30% less that wood and 50% less than aluminium.

The typical cost of a casement window measuring 1800mm X 120mm might be something in the neighbourhood of £350, whereas a small bathroom window could be as little as £150.

uPVC Casement Window Prices (Fixed Window)

Casement Window Size Colour Guide Price
500mm x 500mm White £150 – £175
500mm x 500mm Wood Grain £175 – £200
1000mm x 500mm White £175 – £200
1000mm x 500mm Wood Grain £200 – £250
1000mm x 1000mm White £200 – £250
1000mm x 1000mm Wood Grain £225 – £275
1200mm x 1200mm White £225 – £275
1200mm x 1200mm Wood Grain £250 – £300

Don’t forget, this includes survey, installation, removal of the old windows, certificate (FENSA, CERTASS, etc), VAT and warranty. You might get a better price from a one-man-band, but the savings are unlikely to be huge.

What is Included In Your Double Glazing Cost?

There are a variety of add-ons and design choices that could naturally increase the cost of your double glazing. The type of frame you choose, whether you prefer a chrome or gold handle to the standard white or simply the amount of windows you wish to have installed, could all affect the double glazing costs.

Other factors which contribute to your overall double glazing costs include supplementary add-ons such as more bespoke colour options which may increase the costs, heightened security measure or the installation of cat flaps in matching uPVC doors could push the cost up as required.

Your double glazing cost will also depend on which company you decide to go with. Will you be referring to a Trusted Local Supplier? Or will you be using a general tradesman or large national company that deals in arcane discount structures?

Double Glazing Unit Prices

Actual double glazing unit prices can vary hugely. There are several reasons for this, not the least of which is the buying power of your supplier.

Double Glazed Unit PricesThe one-man-band repairman will pay £75 for the same sealed glass unit that will cost a local specialist company £50 or less. Other variations can be put down to style.

You could expect the replacement double glazed sealed unit cost for a unit that has Georgian bars or lead designs to increase in the order of £30 or more, depending on the size of the unit. And its not just fancy units that effect price.

If the sealed glass unit that is being replaced is going into a frame that that is 800mm or less from the floor, the glass will have to be toughened. The toughening process involves heating the glass panes to a very high temperature and then cooling them at a pre-determined rate.

This produces glass that will not shatter into dangerous shards if it breaks, but breaks as harmless crystals. This process adds at least 20% to sealed glass units prices, so the unit that would have cost £50 will now cast £60.

Replacement Double Glazed Unit Prices

When it comes to replacement double glazed sealed units prices, you’ll probably find that the bulk of the cost is labour.

Take a typical sealed unit costing £35. To replace it will require a visit by a service engineer to take measurements. Expect this call to cost about £20. He’ll order the unit and return a few days later to fit the new one. That will be a further £20.

What you actually gain from using the services of a Double Glazing on the Web Trusted Local Supplier over a one-man-band is the peace of mind that your repair is being carried out by someone who is trained, qualified and experienced. And who is backed by an established local company.

All in all, double glazing unit prices are pretty reasonable, as are labour rates. So you needn’t waste time worrying if you need his service. Just contact Double Glazing on the Web.

Double Glazing Window Prices

Window prices are dependent on many factors including size, style and glass type. How many windows need to be replaced? Does your new window require a standard or wood grain finish?  In order to get an accurate price you need to consider these options.

How Much Does Double Glazing Cost Per Window?

Window CostsThere is a misconception that most companies apply a sliding scale of discounts, dependent on the size of the order.

Many companies will actually charge a price for a window that reflects the cost of manufacture and installation. These won’t vary just because of your order. So, you should be able to plan your purchases based on affordability.

With this in mind, our trusted local double glazing companies can help you plan your project so that there is minimal impact on your budget.

If your house could be described as a pretty normal post war building, then you might expect your double glazed windows to average between £300 and £400 each. To get a more precise idea of cost, use the Double Glazing on the Web quoting engine and do your own quote.

uPVC Casement Window Prices (1 Opener)


Casement Window Size Colour Guide Price
500mm x 500mm White £250 – £300
500mm x 500mm Wood Grain £300 – £350
1000mm x 500mm White £275 – £325
1000mm x 500mm Wood Grain £325 – £375
1000mm x 1000mm White £300 – £350
1000mm x 1000mm Wood Grain £350 – £400
1200mm x 1200mm White £350 – £400
1200mm x 1200mm Wood Grain £400 – £450


Average Replacement Window Cost

If you are looking to give your property an instant face-lift, then nothing will enhance its appearance more than sparkling brand new windows.

The average cost of replacing windows in a house will depend on the size of your home improvement. It can also depend on your regional area, supplier and time of the year.

How many windows are you looking to replace? Are you wanting a standard white finish or woodgrain effect? You can’t expect an accurate double glazing cost from an installer if you haven’t at least specified correctly want you are wanting.

Supply or Supply Only Windows?

Supply Only Double Glazing CostsAre you planning to go DIY or will you require a fitter? As you would assume, the overall price of your uPVC double glazed windows or doors will be significantly lower without labour costs.

However, supply only windows may be cheaper but make sure you know all the facts before you install your window yourself.

Fitting double glazing isn’t simple; In fact it’s a complicated task. A mistake made in the installation process could lead to misted windows and draughts. You are purchasing double glazing to improve your energy efficiency right?

Double Glazing on The Web only recommends DIY double glazing to those who are experienced in the fitting of double glazing. This is not a job you want to get wrong.

There are many benefits to having an accredited installer fit your windows. Your trusted supplier will have many years experience fitting windows. You won’t have to provide the tools, or the materials. Your installer will even clean up afterwards.

Did you know that Double Glazing on The Web can also provide you with free supply only double glazing quotes? Call us today on: 0800 954 8085 for your double glazing costs.

Price Recommendations

Another way to get great double glazing costs, is through recommendations. Ask friends, family and neighbours. Which company did they choose and how much did it cost? Are they happy with the service they received? Do your research.

Double Glazing Costs OnlineWe all know there are dodgy companies out there. This is no surprise. For every reputable business out there, there is also a cowboy builder making his rounds. Recommendations and reviews are important to an installers business.

At Double Glazing on The Web, every one of our trusted double glazing companies are fully accredited. We will never put you in touch with a rogue builder, only trusted and reliable tradesmen are a part of our national network. Contact us to find out more.

Other online websites such as Checkatrade, also promote reliable tradesmen. This interactive service allows customers to review companies and leave valuable feedback.

Too Good To Be True?

A cheap price doesn’t necessarily mean quality. If the price is too good to be true then it probably is. Quality and price should go hand in hand. Finding a company you can trust can be difficult. We have many customers come to us daily asking to be put in touch with a trusted installer. All our suppliers are fully checked and accredited which means you receive the best double glazing at the best price.

Go Local and Save Money

Local companies are unlikely to have expensive overheads like those incurred by national brands. A company has to pay for factory premises, storage and sales so it makes sense that a national company will price their products higher to make back the costs. Smaller companies tend to charge by the window, without having a minimum order.

How Much Does Double Glazing Cost For Terraced Houses?

As discussed above, your double glazing price will depend on the styles and spec of your windows, hinges, locks and glass.

Double Glazing CostsSmall Terraced House With 6 Windows

Casement Windows: On average £2,400

uPVC Sash Windows: On Average £4,400

The cost of double glazing a terraced house will also be dependent on the energy ratings of your windows.

A rated windows for example, will cost much more than C rated windows. However, energy efficiency is important if you want to secure a warmer, more comfortable home. Therefore you may want to consider the benefits A rated windows can bring to your home.

In the long run, opting for a high Window Energy Rating of A will save you money on your heating bills, meaning the cost of your new double glazing will be a greater benefit as you notice a difference in the temperature of your home almost immediately after installation.

How Much Does it Cost To Double Glaze A 3 Bed Semi?

If you are looking to double glaze an entire modern build 3 bedroom house (12 windows and 2 doors) then you are likely to receive mixed costs from double glazing companies. Double glazing costs will inevitably vary between installers but this can be confusing especially when costs could range from £3000 to £10,000.

Depending on sizes, the average cost for a window is £3500 to £400 fitted and a uPVC door is around £600, so the total cost for double glazing a 3 bedroom semi-house is likely to be around £4900 – £5300.

Of course, doors will range in price depending on whether you use uPVC or composite doors, the latter being more expensive.

Double Glazing Repair Costs Vs Replacement Costs

Repair or replace your double glazing? If your problem can be sorted out inexpensively and if you are happy with the look and performance of your existing double glazing, a repair may be the answer.

Double Glazing Repair CostsBut, it’s worth considering the fact that double glazing has advanced hugely over the past decade in both energy efficiency and aesthetics. It would be a shame to spend a lot of money on repairs when you could improve your home and reduce your energy bills by investing in new windows.

The Benefits of Double Glazing Repair

  •  If the double glazing repair cost is low, you’ll save money by not replacing your windows.
  • A repair can often be done in a single quick visit.
  • You avoid the possibility of having to redecorate
  • A temporary repair can give you time to save for a complete replacement


Online Double Glazing Costs

If you have a replacement window project and want information on pricing and quotes, then we can provide you with the information you need. Our online quoting engine provides you with a detailed quote, allowing you to gain an overview and basic estimate.

Double Glazing QuoteIt allows you to get instant double glazing costs for a wide range of double glazing styles. From casement windows to composite doors, you can get free online quotes for multiple designs.

Double glazing prices as always, will vary between companies and in order for you to get the best double glazing prices; you have to choose the right installer. After you have made your online quote, Double Glazing on The Web can put you in touch with up to 3 local double glazing installers.

The idea is to shop around and compare. Talk with different double glazing installers and find out their costs. You can even show them your online double glazing costs.

What is Included in Your Double Glazing Costs?

When you create your online double glazing quote the price includes the following:

  • A full Technical Survey to check measurements and ensure building regulations are met.
  • The product itself, window, door or conservatory.
  • Wide choice of different window, door or conservatory styles and designs.
  • The measurements / sizes of the product you require.
  • The uPVC frame colour including white, wood grain on white or wood grain.
  • The energy efficiency rating for windows (either A, B or C WER).
  • Security features such as standard or high security locking systems. Read more about security.
  • Glass (either standard, toughened or obscured).
  • Handles (in various colour options such as white, gold, chrome or black).
  • The external cill for your new window or door (150mm).
  • Full installation including all colour matched trims, fixings, silicones and sealants.
  • Registration with an industry body such as FENSA or Certass and relevant certification
  • Our trusted local suppliers after care service
  • Trims, fixings, silicones and sealants
  • The removal and disposal of your old windows and doors

All prices quoted online are a guide price only and are subject to a full technical survey from your trusted local supplier. Therefore double glazing costs may change once the full technical survey has been carried out.

You will also be happy to know that all our window costs include VAT, survey, installation, 150mm external cill, warranty and are FENSA or Certass certified, so there are no hidden extra costs or surprises.

What Happens Next?

Once you have completed your online quote, you will receive an email including a link to your online double glazing price so that it is easy for you to access in the future and either add or amend the details.

Double Glazing on The WebDouble Glazing on the Web operate a national network of approved local double glazing suppliers who we are able to put you in touch with. They can arrange a convenient time to come and see you in order to take accurate measurements, show your their products and give you their best price for you new double glazing.

We regularly monitor our network to ensure they provide you with the very best value for money. All of our local suppliers are fully accredited therefore you can be confident you are dealing with honest and ethical companies.

Should you require any further technical advice or help regarding your online quote, please contact us on our freephone and a member of our team will be very happy to help: 0800 954 8085