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Verified ProOver 50 Reviews
We fit high quality double glazing and the next generation triple glazing, using only the best materials. Fully guaranteed...
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 Pro

Jassi Builders

2 review(s)
Offers services in LONGFIELD
Hi Jassi Builders LTD here, I am a specialist in planning, designing and building control services. I make sure that I hav...
Verified Pro

Mgr Plastering & Building

0 review(s)
Offers services in LONGFIELD
All aspects of building work and refurbishment, using quality tradesmen. We look after 4 Churches in the area and have an ...

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 2026 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 2026
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

how much are new windows?

Are you about to replace your old windows and wondering just how much it’ll cost to have a new one fitted? If yes, then you’ve come to the right place! The question is a very straight forward one, however a direct answer can not be provided as determining window prices for a replacement project can be a very tricky challenge. With a plethora of influencing factors that can play a key role in the price of both materials and labour to be used, it could be extremely hard for a window installer to provide a cost estimate without paying you a visit beforehand.

The factors that can go a long way in determining the price of your new window includes the size of the window, frame material, style chosen, your location, rates charged by the window installer (these rates can be different from an installer to an installer, so it’ll probably be in your best interest to compare quotes to identify the most competitive price) as well as the type of glass required.

Generally, for a small flat featuring four windows, the average cost for new windows would be between the range of £2,100 to £2,300. This range provided covers the cost of double glazed uPVC casement windows as well as the installation price. In the same tone, a home with up to 8 windows will have an average cost for window replacement between the range of £4,400 to £4,600, wile also taking into account the installation price. Whereas a house comprising 10 windows could begin at an average cost of window replacement between the the range of £5,200 to £5,500, and a 15 window home will be between the range of £8,400 to £8,600. it should be noted that the aforementioned figures only include the standard number of windows with a uPVC frame and the installation cost.

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.

Can you replace just one double glazed window?

Yes, of course! It’s common for people to replace just one double glazed window. One reason that people want to replace one window is that the sealed unit inside has failed. You’ll know if this has happened because you’ll be able to see condensation on the inside of glass, which gets frustrating because you can’t wipe it away. In this case, you can choose to simply replace the sealed unit or the entire frame, which you might want to do if it’s looking past its best.

When you’re replacing just one double glazed window, if you know the brand of your current windows you could ask your installer if they can source the same ones. This will help to keep them looking as similar as possible, although if your existing windows are very old you may notice some discolouration on the exterior compared to the new one, and locks and trickle vents might look different.

Replacing just one double glazed window shouldn’t take a qualified window fitter long, and could cost as little as £400. If you want to simply replace the sealed unit, that may only cost around £250. You could try to fit a new window yourself, but it’s worth bearing in mind that all replacement windows need to be certified that they’ve been installed to meet building regulations, so you’ll need to apply to your local building control officer who will come and inspect the work then issue a certificate. If you ask an installer who is registered with a self-certification scheme (like FENSA) to fit the window for you, they can issue the certificate themselves when they’ve finished the work.

How much does one double glazed window cost?
How much one double glazed window costs is based on a few factors. If you just want to buy the window to install yourself, it will cost less than if you want an installer to fit it for you. If you want to simply buy one double glazed window without installation it could cost anywhere between £100-£300. That’s for a simple casement window, but other types like sash or tilt and turn windows could cost more. It’s recommended that you get a reputable installer to fit your double glazed windows because they’ve had the relevant training and will be able to install it much more quickly. How much it will cost for them to install one double glazed window will very based on your location, the type of window, how difficult the window is to access and whether you choose standard white uPVC or a coloured or woodgrain effect. An average uPVC casement window might cost somewhere between £300-£400, while a dual turn window might cost between £550-£660 to install. Do you really need to replace the entire window? If it’s just the double glazing that needs replacing, for example if it’s misted up inside, this will cost much less. Most window installers or a glazier will be able to just replace the sealed unit inside, and that may cost as little as £250. It’s always best to get a range of quotes from reputable companies so you know you’ve got a great price and you’re sure you’ll get excellent service.

Do I need toughened glass in my windows?

Whether you need toughened glass in your windows depends on where the windows are in your home or business. Toughened glass is sometimes referred to as tempered or safety glass, and it just means it’s stronger than the standard glass that’s usually offered with double glazed windows. So how do you know if you need it?

Toughened glass is useful in areas of your home where you might come into contact with the windows if you were to trip and fall. If you put your hands out to steady yourself on standard glass the chances are it would break into large sharp pieces with jagged edges. Of course, this means that you could seriously cut yourself if this were to happen. With toughened glass, the structure of the glass is changed so that if it breaks it shatters into lots of tiny pieces, minimising the risk to you if you were to fall on it.

You might want to use toughened glass in patio doors, low windows or frames next to doors. It just means that you will be safer if the unlikely happens and you or a family member falls through the glass. There are certain requirements through Building Regulations with windows at a certain level, but any reputable window installer should be able to go through these with you if you need to replace your windows with toughened glass. The regulations will only apply to new windows – there's no need to switch your windows to toughened glass early, but when you do come to replace them you’ll need to make sure they meet the standard.

Can you repair blown double glazed windows?

You can only repair blown double glazed windows in the sense that you can replace the sealed unit (the glass part of the window) instead of having to replace the entire window.

When a double glazed window is blown, it means that the seal around the window has failed and is now letting air in and out. Often the first sign that the sealed unit has blown is condensation on the inside of the window, which is annoying since there’s no way to get rid of it! When your sealed unit has blown, you’ll be losing heat out of the window, meaning you could be spending more on your energy bills.

As a temporary fix, you could see if you can buy a misting repair kit online, but the condensation will eventually occur again as the air gets in. The best thing to do is ask a window installer or glazier to replace the sealed unit for you.

It's simple to replace the glass in a window – the specialist will remove the beading around the window, remove the blown glass from your window frame and set it to one side. They will then clean up around the frame before adding spacers in, then fitting the new sealed unit into the frame. They’ll make sure it’s a snug fit before replacing the beading back around the window to secure it.

There's no reason to put off repairing a blown double glazed window since the cost is generally much less than replacing the entire thing. A sealed unit with installation costs an average of £100, whereas a completely new window will cost around £400. You’ll soon notice that it’s less draughty and will be able see out of your window once you’ve had the blown glass replaced.

Should I use a Fensa registered installer?

Using a Fensa registered installer isn’t compulsory but it helps to protect you from cowboys and rogue traders. It will also make life a whole lot easier in regards to Building Regulations. Replacement windows must meet a certain energy efficiency rating and once fitted you need a certificate to show your installation complies. By using a Fensa registered company they’ll issue this certificate, otherwise you’ll need the council to look at the new windows.

How does Aluminium double glazing work?

Double glazing is made up of two layers of glass, with a layer of argon gas in between. This type of glass can be used in Aluminium windows. The gas is a poor insulator, helping heat to stay in your home and making your windows more efficient. As well as trapping the argon gas, the second layer of glass reduces the amount of noise that enters your property, and helps to make your windows stronger and more secure.

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