Getting the Best Double Glazing

As a homeowner, you would be looking for the best double glazing for your house. Obviously, you would not want to settle for anything less than the best your budget can afford, and it’s important to compare double glazing prices.

Unfortunately, the different rates you are getting from different sources is turning out to be a bit confusing. How do you decide which one of them will provide the best double glazing for you? Let us tell you a little secret.

The best double glazing solution for you is not based on the lowest price or the best suppliers. The best double glazing for you is what fits your needs the best!

You can now go through our rates list and look for what seems to fit your budget best. In fact, we have our rates neatly arranged in tables for you.

UPVC Window Guide Prices

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

 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

French Casement Window Prices

Casement Window Size Colour Guide Price
500mm x 500mm White £450 – £500
500mm x 500mm Wood Grain £575 – £625
1000mm x 500mm White £475 – £525
1000mm x 500mm Wood Grain £600 – £650
1000mm x 1000mm White £500 – £550
1000mm x 1000mm Wood Grain £625 – £675
1200mm x 1200mm White £525 – £575
1200mm x 1200mm Wood Grain £675 – £725

uPVC Sash Window Prices

Casement Window Size Colour Guide Price
500mm x 500mm White £525 – £600
500mm x 500mm Wood Grain £625 – £700
1000mm x 500mm White £600 – £700
1000mm x 500mm Wood Grain £700 – £800
1000mm x 1000mm White £625 – £725
1000mm x 1000mm Wood Grain £725 – £825
1200mm x 1200mm White £725 – £825
1200mm x 1200mm Wood Grain £850 – £950

Tilt And Turn Window Prices

Tilt &Turn Window Size Colour Guide Price
800 x 800 White £400 – £450
800 x 800 Wood Grain £525 – £575
1000 x 800 White £450 – £500
1000 x 800 Wood Grain £550 – £600
1000 x 1000 White £475 – £525
1000 x 1000 Wood Grain £575 – £625
1200 x 1200 White £500 – £550
1200 x 1200 Wood Grain £625 – £675

Bay Window Costs

A bay window cost will vary between installers but you can get an average price for an installation with our free, online quoting engine. Simply enter the measurements of your bay window (see how to measure windows) and receive an instant bay window quote.

Start your free bay window quote.

In order to get an accurate online quote, please select a style of window to make up each section of the bay window individually.

Bay Window Prices (3 Section)

Casement Window Size Colour Guide Price
2400 x 1200 White £1050 – £1150
2400 x 1200 Wood Grain £1150 – £1250
2400 x 1500 White £1125 – £1225
2400 x 1500 Wood Grain £1250 – £1350
3000 x 1200 White £1150 – £1250
3000 x 1200 Wood Grain £1275 – £1375
3000 x 1500 White £1250 – £1350
3000 x 1500 Wood Grain £1375 – £1475

Bay Window Prices (4 Section)

Casement Window Size Colour Guide Price
3000 x 1200 White £1400 – £1500
3000 x 1200 Wood Grain £1525 – £1625
3000 x 1500 White £1500 – £1600
3000 x 1500 Wood Grain £1650 – £1750
3600 x 1200 White £1500 – £1600
3600 x 1200
Wood Grain £1650 – £1750
3600 x 1500 White £1600 – £1700
3600 x 1500 Wood Grain £1750 – £1900

Bay Window Prices (5 Section)

Casement Window Size Colour Guide Price
3600 x 1200 White £1850 – £2000
3600 x 1200 Wood Grain £1900 – £2050
3600 x 1500 White £1950 – £2100
3600 x 1500 Wood Grain £2050 – £2200
4000 x 1200 White £1900 – £2050
4000 x 1200 Wood Grain £2000 – £2150
4000 x 1500 White £2050 – £2200
4000 x 1500 Wood Grain £2150 – £2300

Bow Window Prices (3 Section)

Casement Window Size Colour Guide Price
2400 x 1200 White £1050 – £1150
2400 x 1200 Wood Grain £1150 – £1250
2400 x 1500 White £1125 – £1225
2400 x 1500 Wood Grain £1250 – £1350
3000 x 1200 White £1150 – £1250
3000 x 1200 Wood Grain £1275 – £1375
3000 x 1500 White £1250 – £1350
3000 x 1500 Wood Grain £1375 – £1475

Bow Window Prices (4 Section)

Casement Window Size Colour Guide Price
3000 x 1200 White £1400 – £1500
3000 x 1200 Wood Grain £1525 – £1625
3000 x 1500 White £1500 – £1600
3000 x 1500 Wood Grain £1650 – £1750
3600 x 1200 White £1500 – £1600
3600 x 1200
Wood Grain £1650 – £1750
3600 x 1500 White £1600 – £1700
3600 x 1500 Wood Grain £1750 – £1900

Bow Window Prices (5 Section)

Casement Window Size Colour Guide Price
3600 x 1200 White £1850 – £2000
3600 x 1200 Wood Grain £1900 – £2050
3600 x 1500 White £1950 – £2100
3600 x 1500 Wood Grain £2050 – £2200
4000 x 1200 White £1900 – £2050
4000 x 1200 Wood Grain £2000 – £2150
4000 x 1500 White £2050 – £2200
4000 x 1500 Wood Grain £2150 – £2300

You can even get a free quote using our online calculator.

However, in order to figure out the best double glazing for you, you need to assess your requirements and what you need. In order to do so, here are some of the factors you might want to take into account.

What Kind Of Windows Would be the Best Double Glazing Solution for You?


Bay uPVC Window


The size and style of the windows would be the first consideration for you in your quest for the best double glazing solution.

Why is this so important?

The simple answer:

Logistics and practical considerations.

If you are installing windows in a new house, the best double glazing window style and size will still be dependent on the house design, space available, and ventilation requirements. If you’re replacing old windows, you will need at least a similar style if not the same one.

You will need the new windows to fit in the space left by the old windows. The best double glazing solution would mean one that does not require a major restructuring of your house! Even if you do want to change your window style, you might want them to be consistent with the other windows in your neighbourhood. You wouldn’t want to stand out. The size of the windows and their style has a huge bearing on the cost. The obvious relationship is between the size and the price – the bigger the window, the higher the cost.

A uPVC bathroom window, which is small in size, can cost you around £150. The same window, but for a regular 1800mm x 1200mm size would start from £350! Your budget would depend on the best double glazing unit for your needs.

In addition to the size, the style of the window also plays a huge part in its price. There are four main categories of window designs from which you pick the best double glazing style for you.

These are:

Casement Windows

Considered by many to be the best double glazing unit option, this is the most common style of windows in the UK. These are your simple door-style windows that are attached to the frame with hinges on the sides. They have handles that are used to swing them open, usually outwards.


uPVC Casement Windows


Sash Windows

These windows can be pushed up or down on sliding mechanisms on their frames to open. These are the best double glazing window style for rooms that don’t have a lot of space to accommodate open doors. These compact windows are quite expensive so might not be the best double glazing solution for those who want to keep their expenses low.

Tilt and Turn Windows

Tilt and turn windows are the best double glazing window style for areas that need flexibility in ventilation. These windows can be tilted open to provide a small amount of air movement, but can also be turned to open up for better ventilation.

Dual Turn Windows

Dual turn windows are double-paned which makes them as versatile in controlling ventilation as the tilt and turn windows. They are also easier to clean as the glass can turn both ways for easier accessibility. These are the best double glazing option for areas that need flexible ventilation, without needing fully opened door-style windows.

A uPVC sash window of dimensions 60cm x 90cm would cost you a minimum of £500, while a casement window of that same size would start around £250.

As you can see, the best double glazing style for your house would depend on exactly what you need, and what you are willing to pay for it. There is no ideal style or size that makes it the best double glazing window. It is simply the one that fits your requirements the best.


Wood effect Frames


What is The Best Double Glazing Frame for You?

So you have picked the window style and size that is the best double glazing fit for you. Now, the next criterion on your list is the frame. There are three frame materials that are available in the UK currently.

As with the window styles, the best double glazing frame for you is based on what qualities each type offers and what you want.

Wooden Frames

This is the most environment-friendly frame, and it also provides the best double glazing look for your house. Wooden frames give your windows the traditional look and are necessary to maintain the appearance of period houses. They are also energy-efficient, and can last for years if cared for properly.

They are, however, not the best option if you are looking for the best double glazing cost, or the lowest maintenance. If not cared for properly, wooden frames can start rotting. To keep them in top working condition, they need very regular sanding, painting, and polishing. They may also require regular termite treatment.

Aluminium Frames

These lightweight and durable frames can be the best double glazing frames for you if you want easy to maintain, colourful windows. Aluminium frames have the most variety in terms of colour, and are cheaper than wooden frames.

However, if you place a high priority on energy efficiency, then these might not be the best double glazing solution for you. Aluminium frames are not known for their insulating abilities.

uPVC Frames

uPVC frames might come closest to ticking all the boxes for the best double glazing frames. They are extremely light, long-lasting, and not expensive at all! They are 30% cheaper than aluminium and 50% cheaper than wooden frames.

This material is easy to maintain, only needing a wipe with a damp cloth once in a while. They are highly energy-efficient. Their only drawback, that they don’t look as natural and pleasing as wooden frames, is easily remedied. They come in a variety of finishes and colours and the natural wood look is one of them.

All three window frame materials have their own advantages and disadvantages. The best double glazing frame material for you is the one that suits you best. If you have the money, the time and energy to maintain them, and the desire to have your house look natural and rustic, then wooden frames might be best for you.

On the other hand, if you want something that looks good but does not require a huge investment in terms of money and time in maintaining, then maybe uPVC might be the best double glazing frame material for you.

What Are The Best Double Glazing Design Detail Choices?


chrome finish handles

While the window style and frame form the general background for the best double glazing units for you, you might also want to pay some attention to the design details.

You might want the handles to match the electrical fittings in the house. You might want to colour-coordinate the frames with the colour of the walls.

What would you want your best double glazing design choices to be? List them all, and expect some additional costs for them.

As we mentioned earlier, aluminium and uPVC frames come in a variety of colour options. Some of these custom colours might cost a little bit extra.

You might want to go for black, chrome or golden handles instead of the regular white. These might also add to your cost.

Even the glass and its treatment can affect the appearance, and cost, of your windows. The best double glazing glass as per your needs might be plain, but you could want Georgian bars or lead designs. Those would add about £30 to your individual units.

You may require windows with toughened glass.

What is toughened glass?

It is glass that has been treated, by heating and then cooling in a controlled manner, so that in the event that it breaks, it disintegrates into harmless crystals. This is a safety feature that normal, untreated glass does not offer. Ordinary glass breaks into dangerous shards which can cause injury.

The best double glazing sealed glass units that are fitted 800mm or less from the floor need to have toughened glass. If you need one of those units, you will also need toughened glass.

What Energy Rating Does the Best Double Glazing Have?

best double glazing includs energy efficiencyEnergy efficiency ratings are quite important if you are looking to make savings in your energy bills. How does the best double glazing save you money in energy bills? By providing insulation at key points!

Your doors and windows are the points that lose the most heating. The best double glazing units will prevent that, making your energy consumption more efficient. It will also reduce the noise from outside!

How does the best double glazing provide insulation? Double glazing in doors and windows is accomplished through units with two layers of glass with air in between. The air inside is sealed perfectly. This pocket of air acts as an insulating layer, preventing the heat from inside the house from being conducted out of the window glass.

This means that the heaters inside the house spend less energy in maintaining the optimum temperature.

If you are conscious of your impact on the environment or like to control your energy expenses, you might find the best double glazing to be the one with A++ energy efficiency rating. Even if you don’t want to spend extra on A++ rated glazing, you should consider at least a C. A C-rating or higher can save you £75 to £150 a year in energy bills!

How Do You Find the Right Price for the Best Double Glazing Units?

Now that you have identified the best double glazing qualities for your house, finding the right price is a simple matter. We have an online calculator that will give you an accurate estimate of the costs involved in double glazing your house!

This easy-to-use tool takes into account all your best double glazing requirements and gives you an accurate quote. This quote is inclusive of:

  • A full technical survey
  • The sizes, styles, and colours of the windows
  • The energy rating of either A, B, or C
  • Security features
  • Glazing (Toughened, Obscured, or Standard)
  • Handles
  • External Cills
  • Full installation, inclusive of colour-matched trims, fixings, silicones, and sealants
  • Registration with an industry body like FENSA or Certass
  • Removal and disposal of old windows

This way, there are no hidden costs or surprises in store for you. You can custom-make the best double glazing configuration for your needs and generate a quote. This quote will be emailed to you for future reference, and so you can amend the specifications as and when you need.

You can save this quote so that you can compare it with other suppliers. This way, you can ensure the best double glazing prices for your house.

We recommend comparing prices from at least three suppliers, and for the best double glazing prices, go ‘window shopping’ in the slow month of December. As it is a slower month for windows, you will find better deals.

Who are the Best Double Glazing Installers?

In some cases, going with smaller, local installers might be better for the best double glazing installation. They have a smaller operation so charge you less, and will not have a minimum order limit. As they operate locally, you can also ask to see some of their work and get feedback from previous clients.

On the other hand, larger, more reputable installers would be better for you if you are looking for quality assurance and standardised services. Some of the best double glazing installing companies are Anglian, Everest, and Safestyle.

Getting the Best Double Glazing Prices

Whether you choose a one-man local installer or a large company, the best double glazing job for you would be one that fulfils your style needs and the needs of your house. Identify what is important to you and that is what will be the best double glazing for you.

Meanwhile:

Why not get a free quote using our free and easy to use online calculator!

Instant Double Glazing Prices

Frequently Asked Double Glazing Questions

Frequently Asked Double Glazing Questions

Do UPVC Windows Need Trickle Vents?

Trickle vents are not a requirement, however they do offer additional ventilation without the need for opening your windows so can be a valued add on.

How Long Do Aluminium Windows Last?

Aluminium windows have a long life span and should last about 20-30 years. Any type of window will require some maintenance but overall aluminium windows are extremely strong and durable.

What Colours Do Aluminium Windows Come in?

There is an infinite range of aluminium colours available for your windows and doors. The aluminium RAL colour chart consists of virtually any colour you could think of, allowing you to achieve the perfect look for your home.

What Are U-Values?

A U-value measures how effective a window or door is as an insulator of heat. The lower the U-values the more energy efficient the aluminium window or door is.

How Long Will It Take To Install My Casement Window?

Because every job is different, it is best your talk to your double glazing installer who will be able to give you an exact timescale.

Are There Other UPVC Casement Window Styles?

Other UPVC casement window styles include the French casement window which is a more traditional take on the standard casement style.

Will I Have A Choice of Casement Window Locks?

A high security lock will be fitted as standard with your new casement window but your double glazing installer will also offer a choice of security upgrades.

What Are Flush Casement Windows?

Flush casement windows are where the unit sits flush to the frame, creating a super sleek look.

Are There Different UPVC Casement Window Sizes?

UPVC casement windows come in a wide range of sizes to suit your property. You can specify your casement window size in our window cost calculator to get a unique window price!

Can I Choose My Casement Window Handles?

Your double glazing installer will offer you a choice casement window handles and casement window hardware options so you can achieve the perfect look.

What is a Casement Window?

A casement window is attached to its frame by one or more hinges. A casement window is hinged at the side allowing them to open extremely wide. These windows can double up as emergency exits and are perfect for hard to reach places within the home, with many home owners installing these windows behind their kitchen sinks.

Where Can I Get A Tilt and Turn Windows Price?

You can get a tilt and turn windows price using our window cost calculator which will give you a free and unique quote within a matter of minutes.

How Does The Tilt and Turn Window Mechanism Work?

The tilt and turn window can be ‘tilted’ inwards due to its unique turning action which allows the window to be easily accessed from both inside and out. All it takes is a swift turn of the handle.

How Much Do French casement windows cost?

The cost of French casement windows will vary depending on installer but you can get an average casement windows cost using our free online quoting engine

How do UPVC Sash Windows Work?

UPVC vertical sliding sash windows are built to either slide vertically downwards or upwards. This opening function makes the UPVC sash window much easier to use compared to traditional wooden windows where the only choice is double hung and single hand.

Are UPVC Sash Windows Easy To Use?

UPVC sash windows are very easy to use. Their spiral balance mechanism allows for smooth operation so you can open and close your windows with ease. UPVC sash windows are also incredibly low maintenance and require very little cleaning.

Why Should I Choose a UPVC Sash Window?

UPVC sash windows are incredibly attractive and make a stunning addition to any property and are relatively low maintenance thank to their UPVC design. You can enjoy a traditional aesthetic for many years to come thanks to their long standing properties.

Replacement Sash Windows In A Conservation Area

If your home is a listed property or within a conservation area then you will need to seek planning permission.

How Much Do Aluminium French Doors Cost?

Unfortunately our online quoting engine does not quote for aluminium however you can get a price by calling one of our advisors on: 0800 015 5679. Or alternatively, you can contact us using our online enquiry form.

Bay or Bow Window?

Simply put, it really depends! Bay windows offer often much welcome and useful extra storage space to the frontage of homes. On the other hand, bow windows provide a curved shape alternative in terms of look compared to bay windows. They are both beautiful options and can add much character and charm to the right property.

Can Bay Windows Look Modern?

Bay windows can easily be either modern or traditional depending on the combination of glass and / or coloured uPVC profiles now available. Subsequently, its easy for these windows to seamlessly blend in with contemporary or old properties.

What Makes Flush Sash Windows Different?

Flush sash casement windows are specifically designed to imitate the appearance of traditional wooden timber windows by appearing to have the same sashes that finish 'flush' with the outside face of the window.

Should I replace my old sash windows?

Sash windows are a key feature for many traditional period buildings. Sash windows were traditionally built using timber, which is fairly high maintenance and has a tendency toward rotting and warping. Over time, these windows can become draughty and insecure. uPVC sash windows are a great way to experience the benefits of modern double glazing, without sacrificing the aesthetic of your home. uPVC sash windows will not rot or warp and require little maintenance. They are also thermally efficient, which means that your home will not require as much heating.

How much does sash window restoration cost?

The cost of sash window restoration will depend on the survey result. Standard draught proofed sash windows (without sill replacement) usually starts at about £500 per window. The time taken will also depend on the survey result.

Can I install double glazing into my original sash windows?

This will depend upon what type of window you have. Replacing existing moving sashes with new, double glazed replicas might to be possible.

How much does it cost to replace a sash window?

The cost of replacing a sash window will depend on many factors including: style, size, material and glazing. A wooden sash window will cost significantly more than a uPVC sash window. A wooden sash window can cost up to £1000. Wooden windows are more expensive to manufacture so expect to pay that bit more. uPVC sash windows can be designed to mimic wood and are much cheaper in price. The starting price for a standard uPVC sash window is on average £525.