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Verified ProOver 50 Reviews

Britelite Windows

156 review(s)
Offers services in LONGFIELD
We fit high quality double glazing and the next generation triple glazing, using only the best materials. Fully guaranteed...
Verified ProOver 50 Reviews

Crystal Windows and Doors

64 review(s)
Offers services in LONGFIELD
Crystal is a uPVC Windows and Double Glazing manufacturer and installer. We have built a strong reputation in London and t...
Verified Pro

Haas Home Extensions Group

0 review(s)
Offers services in LONGFIELD
Welcome to Haas Extension Group, where we take pride in being the premier suppliers, installers, and design consultants of...
Verified Pro

House of Glass

2 review(s)
Offers services in LONGFIELD
House of Glass ltd are a genuine, family run, home improvement company specialising in replacement windows & doors , conse...
Verified ProOver 20 Reviews

Kent Glazing

43 review(s)
Offers services in LONGFIELD
KENT GLAZING - number one installer throughout the Kent area. Family business - with over 30 years experience - specialis...
Verified Pro
Double Glazing Tunbridge Wells Kent by Mayfair Installations, leading Double glazing specialist covering Kent. Windows, Do...

Recent Window Installer Enquiries

24 Jan

Windows | uPVC

Longfield - DA3

Enquiry from: Stephen B

Start Date: Immediate

Are you the home owner of that property? yes joint How many windows are you considering replacing? 5 What material do you require, UPVC? UPVC What colour do you want them to be? open Do you require d...

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03 Jun

Windows | uPVC

Longfield - DA3

Enquiry from: Kelly W

Start Date: Immediate

2 doors for 2 x porches and new windows also for the porches are you the property owner: owner of the property what level of service do you require: supply and installation of full unit property type:...

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09 Feb

Windows | uPVC

Longfield - DA3

Enquiry from: Michele W

Start Date: Immediate

i am looking to get quotes to have 2 windows windows replaced are you the property owner: owner have you considered getting your windows replaced to match a new conservatory: yes how many windows are ...

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19 Sep

Windows | uPVC

Longfield - DA3

Enquiry from: John J

Start Date: Immediate

Customer visited the mywindowsprices.co.uk site and submitted an enquiry. Glazing type: Double, Work description: i would like to replace 6 windows and 1 door I am looking for quotes for 4+ Windows A...

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26 Jan

Windows | uPVC

Longfield - DA3

Enquiry from: Martin G

Start Date: Immediate

Homeowner 2+ windows UPVC Supplied and fitted Please contact to appoint

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05 Jul

Windows | uPVC

Longfield - DA3

Enquiry from: Martin G

Start Date: Immediate

5 - 6 white upvc windows replaced

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15 Aug

Windows | uPVC | Single Window

Longfield - DA3

Enquiry from: Mrs J

Start Date: 1 to 3 months

Are you the property owner: Owner of the property How many windows do you need: 1-2 Windows Do you require doors: 375 Property Type: Semi detached Additional Quotes for Doors: Yes Do you live in a con...

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28 Mar

Windows | uPVC

Longfield - DA3

Enquiry from: H T

Start Date: Immediate

Home Owner 2+ Windows UPVC Supplied and Fitted Please Call to Appoint

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20 Nov

Windows | uPVC

Longfield - DA3

Enquiry from: Richard H

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Detached How many windows do you need: 5+ French doors Window Material: PVCu, What level of service do you require: Supply and In...

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23 Feb

Windows | Glazing

Longfield - DA3

Enquiry from: J P

Start Date: Immediate

Letterbox Homeowner Please contact to quote

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How much do Window Installer services cost?

How much do Window Installers cost? Prices for Window Installers in 2025 can differ relying on the kind of task that you require to have performed in your house. It's the inquiry we get asked a whole lot "how much do Window Installers charge?". It's generally very good to have an idea of how much a Window Installer are going to likely charge for their services. Prices will probably rise and fall based upon the products and also the tradesman selected. The table reveals the sorts of service that Window Installers typically do and also the typical cost range of these jobs. Some tasks take longer to complete than others so prices do fluctuate by task.

View our Window Installer cost guide View our Window Installer advice

The average price
of a Window Installer in Longfield is:

£2,082

Window Installer job Window Installer cost in 2025
Double glazing in Longfield £1,500-£5,000
Upvc double glazing units only in Longfield £800-£1,200
Triple glazing in Longfield £1,500-£5,000
Aluminium windows in Longfield £1,875-£2,875
Wooden window in Longfield £3,750-£5,750
Aluminium windows supply only in Longfield £2,600-£3,900
Upvc or wood porch in Longfield £2,625-£4,025
Sash window in Longfield £1,800-£6,000
Glaziers in Longfield £57-£87
Secondary glazing in Longfield £1,500-£5,000
uPVC Single Window in Longfield £225-£345
Wooden sash windows in Longfield £3,750-£5,750
Wooden windows supply only in Longfield £2,760-£4,140
Aluminium repair in Longfield £240-£360
Window repair in Longfield £268-£402
Wooden window repair in Longfield £320-£480

Related Window Installer searches in Longfield

Window Installer FAQs

Why are double glazed windows better than single glazed?

Double glazed windows are better than single glazed generally because they are more energy efficient. The clue’s in the name – double glazed windows have two panes of glass while single glazed windows only have one. In double glazed windows, there is a space between the two glass panes. This space is filled with inert gas or a tight vacuum, which helps to provide an extra level of insulation. That means that heat won’t escape your home easily, nor will it creep in, so you can keep your home at a more comfortable temperature.

The extra pane of glass also helps to increase your home’s security. Single glazing is pretty easy to smash through, whereas it will take much more effort to smash double glazing and will create more noise, so burglars might be put off.

Another reason why double glazed windows are better than single glazed ones is that they help to reduce noise. Of course, if you live by a busy road you’ll still hear some traffic noise, but it can be significantly reduced buy double glazing. In the same way that the inert gas in the middle of the two panes keeps heat in and the cold out, it also helps keep noise out.

With double glazing, you’ll also notice much less condensation. With single glazing, it’s common to see condensation on the inside of the windows, especially when the heating is on. This is because the outside of the window is cold, but the inside is warm. With double glazing, the insulation between the two panes stops there being such a difference in temperature between the inside and outside of the window.

how long does double glazing last?

Just like every other thing in your house, your double glazed windows have an expected lifespan attached to it as it gradually becomes less functional and less efficient over time. Although there are actually top quality windows which are able to last a very long time, but the fact still remains that nothing can stand the test of time or last forever. Even the best quality double glazed windows will eventually need to be replaced at some point. So exactly how long do double glazing windows last before need a replacement?

To make it brief, most double glazing window units are typically expected to last an average of 20 years. This number of years can, however, vary within the range of 10 to 35 years based on the several factors such as the type, quality of materials as well as installation and where the windows are located.

The reason for the depreciation in double glazing windows is, over time, the windows may be subjected to some wear, tear as well as all kinds of minor damages which includes gas filled insulated glazing unit slowly and gradually leaking. According to the Centre for Sustainable Energy, the evaporation of 25 percent of gas will ultimately minimize the windows’ thermal performance. And when this occurs, fitting a secondary glazing measure or replacing the windows should be put into consideration.

Another factor leading to the gradual depreciation in double glazing windows over time has to do with condensation. When the window collects between the layers of glass due to the failure of the seal of the perimeter and the saturation of the desiccant, can only be solved by IGU replacement.

And finally, the ravages of time also has a way of taking its toll on double glazing windows. This can happen in so many ways such that the window becomes a lot less efficient and later needing to be replaced.

how long does double glazing last?

Just like every other thing in your house, your double glazed windows have an expected lifespan attached to it as it gradually becomes less functional and less efficient over time. Although there are actually top quality windows which are able to last a very long time, but the fact still remains that nothing can stand the test of time or last forever. Even the best quality double glazed windows will eventually need to be replaced at some point. So exactly how long do double glazing windows last before need a replacement?

To make it brief, most double glazing window units are typically expected to last an average of 20 years. This number of years can, however, vary within the range of 10 to 35 years based on the several factors such as the type, quality of materials as well as installation and where the windows are located.

The reason for the depreciation in double glazing windows is, over time, the windows may be subjected to some wear, tear as well as all kinds of minor damages which includes gas filled insulated glazing unit slowly and gradually leaking. According to the Centre for Sustainable Energy, the evaporation of 25 percent of gas will ultimately minimize the windows’ thermal performance. And when this occurs, fitting a secondary glazing measure or replacing the windows should be put into consideration.

Another factor leading to the gradual depreciation in double glazing windows over time has to do with condensation. When the window collects between the layers of glass due to the failure of the seal of the perimeter and the saturation of the desiccant, can only be solved by IGU replacement.

And finally, the ravages of time also has a way of taking its toll on double glazing windows. This can happen in so many ways such that the window becomes a lot less efficient and later needing to be replaced.

How much is it to repair the glass in a window?
Accidents happen, and sometimes windows get broken. And that will lead to you wanting to replace just the glass in your window, rather than the whole frame. Also, as windows get older they can mist up on the inside, which means that the unit has ‘blown’ - so you’ll also need to replace the glass. But how much is it to replace the glass in a window? Luckily, if the frame of your window is in good condition, there’s no need to replace it, and this will reduce the cost. For an installer to fit a new pane of glass in a single glazed window, the average cost is £100, while a replacement double glazed sealed unit will cost an average of £110. Of course, as this is an average, if your window is very large you may spend more, and if your window is very small the price may be less. That's why it’s important to get a range of quotes so you can compare costs and get the best price. If you’re good at DIY, you may feel confident enough to have a go at replacing the glass in your window yourself. In that case, the cost of sealed unit and any other materials you need will cost an average of £57. It’s a significant saving, and if you think you can do it, then give it a try. However, if you’re in any way unsure, it’s best to leave it to the professionals. A window installer will be able to replace the glass in your window in less than an hour. Even though it costs more for a professional to do it, if you get it wrong and have to start over it will cost you more in the long run.
What is the Window Energy Rating (WER)?

The energy efficiency of windows is measured using ratings, varying from A, the most efficient, to G, the least efficient. This scheme is run by the British Fenestration Council (BFRC). To comply with Building Regulations you’ll need windows of energy efficiency at least level C.

How much money will I save with double glazing?

By replacing the single glazed windows in your home you stand to make savings of around £170 each year. It’s not just the financial gain that makes double glazing attractive though and you can also save up to 680kg of carbon emissions annually. Over 20 years this is a saving of around £3,400 and 13,600kg of CO2.

how much is double glazing?

Double glazed windows are one of the most popular window options for home and property owners in the United Kingdom and reasonably so. They are able to offer a wide range of benefits to home owners which includes being energy efficient, reducing the build up of condensation on windows and black mould growth, significantly reducing background noise for a better relaxation or night rest, increasing the value of your property as well as adding to the aesthetic appeal of your home. So if you’ve decided to lay your hands on a double glazed window, you’d probably also like to know how much it’s going to cost. Well, providing a simple and accurate answer to the question of double glazing window cost is almost impossible as there are so many factors that influences the price including the materials and style.

Several suppliers usually provide the list of their double glazing windows on their websites, however these prices are only for basic off the shelf window and most often without the installation cost. Furthermore, if you require some special features to your double glazed window, then this will also tell on the total cost of the window.

So how much will a double glazing window cost? The cost of a double glazing window usually ranges between £100 to £3,200 per window, depending on the available options.

To have a more accurate estimate of the cost of a double glazing window, you’ll need a obtain a survey from a double glazing installer who can take into account any possible complications that may arise when installing your windows while also giving an advise on the most suitable window style for your property.

How to fit aluminium double glazed window?

Whether you’re hiring a professional to replace your double glazing or are considering DIY, it’s a good idea to know how to fit a double glazed window.

You need to start by assembling your window. Fit any handles and cut the outer sill to size by measuring the outer wall depth. Then, screw the outer sill to the window frame and attach the frame fixers. Screw the ventilation grilles onto the inside of the frame and fix the vents on.

Next, you need put the window into place, using spacers to wedge it in. Use a spirit level to check it’s level horizontally and vertically, adding extra spacers if needed. Then, fix the frame into place at each fixing point using a drill, wall plugs and screws. Measure and cut the interior sill, and check that it’s level, adding spacers if needed. Then fix it using screws, masonry nails or adhesive.

Finally, fill in any wide gaps with foam filler and small gaps with sealant. You can get interior and exterior trims to cover these up, making your window look neat and professional.

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