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At Double Glazing on the Web we are committed to providing customers with quick and easy online quotes from local installers with no obligation to buy.

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Free Double Glazing Prices

Free Double Glazing Prices

Instant online guide prices for windows, doors and conservatories.

A Choice of uPVC Double Glazing

A Choice of uPVC Double Glazing

Create a unique online quote from 1000's of double glazing products.

Twickenham Double Glazing Installers

Twickenham Double Glazing Installers

We can recommend accredited and trusted double glazing companies in Twickenham.

Double Glazing Prices in Twickenham

If you are looking for double glazing in Twickenham, then Double Glazing On The Web can help provide you with free double glazing prices.

Our online quoting system can provide you with an instant online guide price, for a range of aluminium & uPVC windows, doors and conservatories.

It’s free, easy to use and will give you a great idea on cost.

Local Double Glazing Companies

We have a wide network of recommended double glazing companies in Twickenham. We are dedicated to linking customers and installers to help you get double glazing you’ll love.

Each company that is part of our network, is highly experienced. They can offer you a market-leading range of products designed to be energy efficient, secure and extremely long lasting.

Double Glazing Repairs 

While modern double glazing is typically very durable and low maintenance, occasionally you might find yourself with a window or door that requires repairing or replacement. Our installers offer repair and replacement services to have your glazing looking as good as new.

Installers can carry out repairs on broken locks, cracked or dented frames, condensation and misting on windows and faulty internal beading.

Sometimes however a window might be beyond repair. In this case your installer will suggest having the window replaced.

Twickenham Information

Key Facts

Population: 52,396
Households: 11,916
Areas We Cover: Whitton, Richmond, East Twickenham/St Margarets, Fulwell, Teddington, Hampton, Isleworth, Hampton Hill, Feltham, Ham, Hampton Wick.

Useful Resources

Richmond City Council
0208831601| Richmond City Council, Civic Centre, 44 York Street, Twickenham, TW1 3BZ

Planning Applications

Building Control

Building Regulations Explained

What is The Cost of New Double Glazing?

The cost of new double glazing will depend on the size, style, finish and decorative aspects of your chosen products. On average, a double glazed window is likely to cost between £350 and £400 and a uPVC door will cost around £600. This means that double glazing a 3 bed semi will likely cost between £3500 and £5000.

However, for larger, bespoke double glazing, such as a bow window, your double glazing costs will be higher.

What is The Average Price For New Windows?

The average cost for new double glazed windows is usually between £350 and £400. For a 3 bedroom semi-detached house, you can expect to pay between £3500 and £5000 to have your home fitted with new uPVC windows and doors.

If you opt for other double glazing materials such as aluminium or timber, the average costs for your new windows will be significantly higher.

The price for your new windows will also depend on their size, style, whether you opt for a wood grain finish and whether you’ve chosen any decorative additions. For large, bespoke windows with multiple glass panes, you will pay significantly more per window.

How Much Does it Cost to Install Double Pane Windows?

Our pricing tables and online quotes include the cost of installation, as well as surveying, warranties, VAT and a certificate of compliance as standard. This means that you won’t be surprised by extra costs as it is all covered in the initial quote.  

If you would prefer, supply-only double glazing companies will provide you with double pane windows for you to install yourself.

However, installing a window yourself is relatively time consuming and can be quite a difficult undertaking. Paying for installation means that you are paying for convenience and a quality fitting. You also will have to deal with the building regulations yourself, rather than having it sorted for you by your double glazing company.

What Is The Cost of uPVC Windows Fitted?

Prices for the installation of uPVC windows can vary. Each company will offer a slightly different price which is why it is so important to compare double glazing prices.

The prices given in our pricing tables and in our online quotes include the cost of fitting and surveying as well as the cost of the uPVC windows themselves. For example, a small casement window will cost between £150 and £175 including the price of installation.

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

How to Measure uPVC Windows

Find out how to measure your uPVC windows with our useful online video. Once you have your sizes, simply start your free online quote to get an instant price.

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Featured Installers

Alaskan Windows

Alaskan Windows have been providing high quality double glazing to homeowners in South West London and Surrey for over 20 years and have built up an incredible reputation. Boasting a highly experienced team, Alaskan’s products and installations are unbeatable. Alaskan are a trusted, family-run business and their large base of satisfied customers is testament to the quality of their products. Fully accredited and members of CheckatradeWhich? Trustatrader, Buy With Confidence and Safer Sutton Trader Scheme. Alaskan Windows are proud of their honest and ethical practices and high standards of customer service.

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Alaskan performed a truly heroic installation of a patio door and bedroom windows in what turned out to be the coldest day of the year. Despite ice and severe cold they installed both by lunchtime. The whole process was achieved with the highest professionalism with just a little fettling afterwards to make perfect. We invited in quite a few companies to quote and none showed the commitment and knowledge that Alaskan did. The prices were also highly competitive. Like others who have left reviews, we will certainly use Alaskan again. And no, I'm not related to or have any business interest in Alaskan Windows. They really are that good.
Simon W.

Alaskan Windows did such a great job that we got them back to do three more windows for us! Initially we replaced our living room sash window, kitchen window, hallway and downstairs toilet windows, but then decided that they looked so good we wanted to replace both of our bedroom and bathroom windows too. For both visits Alaskan delivered top service and I would recommend them wholeheartedly.
Laura Pilch

I am thrilled with my windows. They look gorgeous! I was also impressed by the professional approach of the sales team. Not pushy at all and providing one quote with the best deal they can offer. In my favour this far out priced other quotes whilst still offering the same quality. I highly recommend this company.
Sarah Fowler

Couldn't recommend enough. Very clear process from start to finish. Did exactly as agreed. Excellent quality value for money.
Customer in London

How much does double glazing cost?

Double glazing prices will vary between companies and the overall cost will ultimately depend on style and size. A 500 x 500 White uPVC casement window for example, is likely to cost £150 -£175. A bigger casement window at 1200 x 1200 on average can cost £250-300.

How can I get the cheapest double glazing in Twickenham?

When looking for double glazing at a great price, it is important to avoid rogue traders who offer subpar products and installations at prices that are too good to be true. Check that your chosen installer is FENSA or GGF registered to ensure that they are reputable businesses. If you cannot afford double glazing from a reputable company, consider opting for secondary glazing as this tends to run a lot cheaper than new double glazing.

How do I use the uPVC Windows Prices Calculator?

Click 'Start My Quote' and enter your window, door or conservatory measurements to get started. Follow the simple step by step guide to receive a unique online quote.

What will my online double glazing quote include?

Your quote will include the cost of the double glazed units themselves, as well as installation, surveying, a warranty, VAT and a certificate of compliance. This means you get a complete price upfront so you’re not surprised by additional fees further down the line.

How much is a triple glazed window?

Triple glazed windows can provide your home with additional soundproofing and thermal performance, but will always cost significantly more than their double glazed counterparts. A triple glazed window costs around £110 more than a double glazed window. Triple glazing is really only a worthwhile investment if you are using it as a replacement for old double glazing or single glazing. If you are replacing modern double glazing you are unlikely to see enough of a difference in the quietness or warmth of your home to justify the extra cost.

Are uPVC patio doors made to measure?

Double glazed patio doors are available in a wide range of sizes but whether or not they are bespoke, depends on your chosen installer.

Double Glazed Windows Price List


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


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

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

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

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

Composite Door Prices

Composite Door Size Door Style Guide Price
900mm x 2100mm Half Glazed £1000 – £1200
900mm x 2100mm Arched Half Glazed £1000 – £1200
900mm x 2100mm Arched Toplight £1000 – £1200
900mm x 2100mm Solid Fire Door £1000 – £1500

Bi-Fold Door Prices (2 Pane)

Bi-Fold Doors Size Colour Guide Price
1200mm x 2100mm White £1950 – £2150
1200mm x 2100mm Wood Grain £2350 – £2600
15000mm x 2100mm White £2050 – £2250
15000mm x 2100mm Wood Grain £2500 – £2750
1800mm x 2100mm White £2150 – £2350
1800mm x 2100mm Wood Grain £2600 – £2850

French Door Prices (White uPVC)

French Doors Size Door Type Guide Price
1200mm x 2100mm Fully Glazed £950 – £1050
1200mm x 2100mm Half Glazed & Plain Panel £975 – £1075
1500mm x 2100mm Fully Glazed £1000 – £1100
1500mm x 2100mm Half Glazed & Plain Panel £1025 – £1125
1800mm x 2100mm Fully Glazed £1075 – £1175
1800mm x 2100mm Half Glazed & Plain Panel £1100 – £200

uPVC Patio Door Prices (2 Panel)

Patio Doors Size Colour Guide Price
1500mm x 2100mm White £975 – £1075
1500mm x 2100mm Wood Grain £1225 – £1375
1800mm x 2100mm White £1000 – £1100
1800mm x 2100mm Wood Grain £1250 – £1400
2000mm x 2100mm White £1050 – £1150
2000mm x 2100mm Wood Grain £1300 – £1150

Frequently Asked Double Glazing Questions

Can Double Glazed Doors be Fitted with a Pet Flap?

Depending on the style of door, a pet flap can be fitted as an extra service. The only exception is when glass panels feature on the lower half of the door.

How Much Do Doors Cost?

Your double glazed door cost will depend on specifications such as style, size, locks, glazing and door furniture. Double Glazing on The Web gives you the opportunity to create your very own unique door quote online. Start your free door quote today.

What Does UPVC Stand For?

UPVC is an abbreviation for unplasticised polyvinyl chloride which is used in window frames.

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.

Which Bi-folding Door Configuration is Best?

When choosing the arrangement of your bi-folding doors you need to consider the size and layout of your room. Outfolding bi-fold doors will take up less internal space when completely folded back and a left of right folding will be dependent on space available in your room.

How Long Does It Take To Install Bi-Fold Doors?

If a survey is scheduled within 48hrs then your bi-fold doors can be supplied and installed within just 6 – 8 weeks.

How Secure Are Bi-Folding Doors?

Bi-folding doors are extremely secure and are built with a high security locks as standard. Each of our double glazing installers will offer their own range of locking systems with additional upgrade options for all security conscious homeowners.

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.

Are uPVC Doors Easy To Maintain?

uPVC doors are extremely easy to maintain and will never require re-painting or varnishing. Neither will a uPVC door rot or warp!

What Are Composite Doors Made Of?

Composite doors are made of a combination of high performing materials which is why they are so strong and incredibly long lasting. The composite door is made from: reinforced UPVC, fibreglass skin, high density foam and a water resistant composite materials.

Do Composite Doors Fade?

Composite doors feature a tough and durable skin where colour runs throughout rather than a simple surface coating. This means a composite door is not likely to wear or fade like the majority of painted doors. A composite door is very long lasting which also reduces the amount of maintenance required to keep it looking in top condition.

Do Composite Doors Need Painting?

Composite doors do not require re-painting. These low maintenance doors feature a water resistant GRP, coloured skin which keeps a pristine appearance year after year.

Do Composite Doors Warp?

A composite door will not warp like wood and won't require regular painting.

Can I Get Composite Side Panels?

Composite doors are available with matching composite side panels, your installer will offer you a choice of colours and glazing.

Is Every Composite Door Different?

There are different qualities to every composite door and they will vary between manufacturers depending on materials used. At Double Glazing on The Web we only put you in touch with the highest quality suppliers and installers.

What Do Stable Doors Look Like?

These country style doors offer charming aesthetics and are a stylish alternative to standard back doors, stable doors a great choice for any kind of property. This door is split in two halves which open independently from one another as well as function as a whole. Whether you are after a traditional stable door or more contemporary design with modern glazing, your double glazing installer will be able to offer you a wide range of options for your property.

Are UPVC Stable Doors Made To Measure?

Your UPVC stable door will be made to measure and tailored to your specifications given to your double glazing installer.

How Much Do UPVC French Doors Cost?

UPVC French door prices will depend on your personal requirements and specifications such as size, style and glazing. To get an average French doors cost use our door cost calculator for a free online quote.

Are UPVC Patio Doors Secure?

UPVC patio doors can be fitted with a choice of high security locks to make them extra secure. You can also choose from a range of glazing styles to further enhance the strength of your patio doors.

Do I Need Planning Permission For Patio Doors?

You may require planning permission for double glazed patio doors if you have a listed building or happen to live within a conservation area. Visit the V for more information.

How Do Sliding Patio Doors Work?

UPVC sliding doors operate on a smooth, easy glide system which allows for effortless transition. They are attached to metal or vinyl tracks which are fitted to the top and bottom frames and plastic rollers are added to ease the movement.

How Do Slide and Swing Doors Operate?

A multi-pane door with individual panes slides on a single track with no loss of space. Panes are able to operate individually with no visible hinges or hardware. The slide and swing door can open up spaces between rooms or between home and garden or even conservatory.

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.

Can Double Glazed Windows Reduce My Heating Bills?

When you install double glazing in your home or commercial property, it is likely that the extra heat retention will lessen the need to use central heating systems. In turn, this could mean you see a drop in heating bills. If you are concerned about your energy bills, it is easy to compare business energy or home energy online.

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.



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