Find a Window Installer you can trust near you.

Choose from 1352 Window Installers, all rated by people like you.

Over 1550 reviews & an average rating of 4.4/5 stars, you'll find the right pro

Enter your location to refine your search

Choose and shortlist

Use the shortlist button to select up to 4 tradespeople, enter your project details and press send

or

Keen to get on with the job?

Get up to 4 quotes from local Window Installers near you

Advertisement
View Shortlist
Verified ProOver 50 ReviewsMember for 3 year(s)
We fit high quality double glazing and the next generation triple glazing, using only the best materials. Fully guaranteed...
Verified ProMember for 2 year(s)
Conservatories & Windows Direct are suppliers and installers of high quality energy efficient Conservatories, Orangeries, ...
Verified ProOver 50 ReviewsMember for 3 year(s)

WFS ANGLIA

61 review(s)
Based in: Peterborough, PE2 8BG
Here at WFS Anglia Ltd, we have built ourselves a fantastic reputation throughout Cambridge, Northamptonshire, Peterboroug...
Verified ProOver 10 ReviewsMember for 3 year(s)

The Window Company

13 review(s)
Based in: Nottingham, NG14 5FP
The Window Company have been trading since 2001 in the East Midlands area, offering a bespoke service for windows, conserv...
Verified Pro
We are your local expert in transforming conservatories into comfortable, usable spaces all year round. We specialise in p...
Verified ProOver 20 ReviewsMember for 3 year(s)
Our remit is to deliver our service, promptly, efficiently and professionally, and we look forward to welcoming you as a v...

Find a local Window Installer you can trust...

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 is:

£1,849

Window Installer job Window Installer cost in 2026
Double glazing £1,077-£5,168
Upvc double glazing units only £438-£1,075
Triple glazing £1,077-£5,168
Aluminium windows £1,781-£3,383
Wooden window £1,113-£2,475
Aluminium windows supply only £807-£1,803
Upvc or wood porch £3,516-£6,879
Sash window £1,099-£5,240
Glaziers £94-£433
Secondary glazing £1,077-£5,168
uPVC Single Window £257-£937
Wooden sash windows £1,113-£2,475
Wooden windows supply only £953-£2,935
Aluminium repair £170-£430
Window repair £142-£413
Wooden window repair £168-£558

Window Installer service qualifications and accreditations

Window Installers credentials as well as accreditation's: Getting the right training and mastering exactly how to do your profession is key for any tradesperson including Window Installer s. View the online profile of each Window Installer you are considering to see what accreditation they hold and also what trade associations they belong to. Some trade associations that Window Installers may likely be a member of include: FENSA, Glass and Glazing Federation, Federation of Master Builders. Equally Window Installers may also have the following accreditations: Elecsa, Certass, SAFEcontractorInsurance for Window Installers: Any person that works on your house, including Window Installers, should really have valid public liability insurance, which protects you the homeowner and likewise the Window Installer should regrettably anything happen while they are doing the work. Planning permission for Window Installers A number of the tasks that a Window Installer will provide for you will not require planning permission unless its a listed building. Definitely discuss with the Window Installer if planning permission would be needed for the project you are doing, they can advise the steps that need to be taken.

Services offered by Window Installer

What solutions do Window Installers normally offer? There are a variety of work you could certainly employ a Window Installer for, as well as several of the most usual tasks that Window Installer are asked to accomplish consist of:

Window Installer FAQs

how does double glazing work?

One of the essential factors that makes a home truly a home is the convenience and comfort it provides us. As a result, we usually have a long to do list comprising things that come together to make sure our home is comfortable with ambient temperature at the very top of the scale of preference. After all, no matter how greatly designed your furniture and home decor is, it probably would amount for nothing if the temperature is either too hot or too cold. Some of the most common ways we incorporate to make the temperature a lot more conducive and warm during the winter months is by installing air conditioning system or through top notch insulation materials, but the fact still remains that a lot of heat would escape through the doors and windows. And that’s exactly the use of double glazing. So how exactly does double glazing work?

Double glazing basically works by preventing the escape of air and trapping it between two panes of glass. It’s the trapped air which serves as an insulation barrier which delivers 3 major functions. First and foremost, it stops the escape of heat through the window as the barrier created insulates the room from varying air temperatures at both sides of the glazing unit. The second major function is the double glazing works to keep down noise pollution coming from outside. While the third major function of double glazing I the fact that it helps minimize condensation which usually occurs on the single glazed windows’ inside as the cold outside air works to cool the warm air inside the house. When you install a double glazing window, the insulation barrier generated will work to stop the air temperature transmission which ultimately helps prevent the occurrence of condensation.

Do I need to stay at home while my windows are being replaced?

Most installers will not need you to be at home while they are fitting your windows. It is a good idea to be present though, just in case they have any questions for you and perhaps for your own peace of mind. If you cannot be there, you will need to arrange access to the property and/or agree securing the property at the end of the day.

what is a window sash?

Windows, being a very crucial feature in every home, are one of the things you simply can’t afford to ignore in your home. Having a good understanding and solid knowledge of your windows’ components like the window sash will help you stay up to date with them and able to identify any minor mishaps early on before it leads to a much bigger problem. So what exactly is a window sash?

Well without much fuss, a window sash is simply that part of your windows that’s able to open and close. And there could as well be more than one window sash that’s operable depending on your window’s type. Window sash usually possess a very basic design as well as structure. What’s more? This section of a window happens to be a frame that’s designed in such a way to make for easy placement inside the whole window casement. You’ll discover inside the sash frame, the window glass alongside any framework possessed by your window which includes grids.

Usually, the sash is fitted into the frame of the window on a runners’ set in such a way that allows for both upward and downward movements. And finally, the window sash’s frame typically comes with a locking system which provided for extra safety and security.

The window sash is a vital feature that can determine the durability and overall performance of the windows. In the event whereby your window sash is malfunctioning, it can result to numerous problems which includes both drafts as well as leaks. As a result, it’s very important to keep your window sashes in a great working condition as failure to do so will make opening and closing your windows a really difficult task.

Can I fix glass on one side of a double glazed window?

Unfortunately, you can’t fix the glass on one side of a double glazed window. That’s because they’re sealed units – once one pane of glass is broken, that will break the seal and its thermal insulation properties will be lost.

The good news is that if your window frame is still looking great, there’s no need to replace that. You can simply replace the glass in the window, which will cost much less. You can look to spend around £250 on a sealed unit, whereas a whole replacement single window may cost up to £600.

When an installer comes to replace the glass in your double glazed window, they will survey the inside and outside of your home around the window, then move any furniture by the window so they’ve got access. They should then pop a dust sheet down to stop any debris from getting on your floor.

Then, the installer will carefully remove the beads from the frame. They will then lift the glass out of the frame and put it somewhere safe before cleaning out all of the dust and any debris that has found its way into the frame. Using spacers at the bottom of the frame, the installer will make sure that the sealed unit is square in the frame to get a good fit. Once they’re happy, they will replace the beading and make sure it looks perfect before cleaning up their tools.

You could have a go at replacing the glass on a double glazed window yourself, but it’s not recommended. Leave it to the professionals who will know exactly what to do and will be able to do it quickly and safely.

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.

How long do double glazed sealed units last?
When it comes to how long double glazed sealed units (the glass inside the window) last, a lot of it is down to the quality of the glass and the environment that your windows sit in. It’s not uncommon for your window frames themselves (especially if they are uPVC) to last longer than your sealed units. Sealed units are called that because they’re two panes of glass sealed together with an air gap in between. They use what’s called a ‘perimeter seal’ to protect the air gap between the panes, and is usually made of butyl mastic which retains a desiccant within a perforated metallic spacer bar. The desiccant’s job is to absorb any moisture which finds its way into the air gap to stop your window from misting up on the inside. When a sealed unit fails, or is ‘blown’, it’s usually because moisture builds up around the seal and causes it to fail. Sealed units won’t last forever, so you will eventually end up with condensation inside the panes of your double glazing, but in an ideal environment your double glazed sealed units could last up to 30 years, with some manufacturers claiming as long as 40 years. But they do require a bit of maintenance and the position of your windows will also make a difference as to how long they last. There are a few things that determine how long a sealed unit will last:
  • Climate - If your window faces south, it will be subject to direct sunlight for a lot of the day. This tends to cause the sealed unit to fail more quickly – a south-facing window may last between 10-25 years. This is because the spacer bars will twist as the temperature rises and causes the adhesive holding them together to eventually fail.
  • Moisture - Windows in kitchens and bathrooms tend to fail more quickly because they come into contact with moisture more often. For example, if water gets on your windowsill when you shower, the seal around the glass will come loose more quickly if it’s constantly wet.
When you replace the sealed units in your windows or get completely new double glazing, make sure you choose an installer that uses quality products and will take all the steps to ensure that your sealed units are kept away from moisture as much as possible.
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.

Will double glazing stop condensation?

If you’ve got a problem with condensation and don’t have double glazing, you should find that getting new windows will help. Condensation is caused by warm air meeting a cold surface which then turns into water droplets. With two panes of glass, less heat will escape from your home and keep the window warmer, meaning when steam from the bathroom or kitchen touches your windows there should be less condensation.

Window Installer help and advice

How it works

Tell us about your Window Installer project

Answer a few quick questions to help us match you with the right Window Installer

Get up to 4 free quotes

Receive no-obligation quotes from 4 Window Installers working in your area.

Pick the right pro for you

Compare prices, customer reviews and services, and hire the right Window Installer.

Are you a Window Installer?

View our open Window Installer jobs near you

Join today

Recent Window Installer Enquiries

30 Oct

uPVC Double Glazing

Thornton Heath - CR7

Enquiry from: Karen L

Start Date: Immediate

2+ windows Supply and install

Post a similar request >

29 Oct

uPVC Double Glazing

Morpeth - NE61

Enquiry from: Ellis M

Start Date: Immediate

Hello, looking for a quote for supply/install of a window, approx 210x120cm though can be flexible if it's cheaper to get something more standard. Also... as we're changing the same of the window we h

Post a similar request >

29 Oct

uPVC Double Glazing

Wellingborough - NN9

Enquiry from: Apostolos I

Start Date: Immediate

2+ windows Supply and install

Post a similar request >

29 Oct

uPVC Double Glazing

Nottingham - NG16

Enquiry from: Ivan R

Start Date: Immediate

Two bay windows plus ten more windows and one door. I live in a bungalow

Post a similar request >

29 Oct

Window Repair

Hayes - UB3

Enquiry from: Siva N

Start Date: Immediate

Wooden window repair Lead Wooden window repair Lead Wooden window repair Lead

Hi there, i am looking to replace 4 door handles

Post a similar request >

29 Oct

uPVC Double Glazing

Barnsley - S75

Enquiry from: Nigel W

Start Date: Immediate

2+ windows Supply and install

Post a similar request >

29 Oct

uPVC Double Glazing

Glasgow - G72

Enquiry from: Ross S

Start Date: Immediate

Submit your free quote for rated tradespeople

Post a similar request >

28 Oct

uPVC Double Glazing

Romford - RM7

Enquiry from: Syed Y

Start Date: Immediate

2+ windows Supply and install

Post a similar request >

28 Oct

Replacement Glass Only

Cromer - NR27

Enquiry from: Graham C

Start Date: Immediate

Replacement unit, ground floor window, clear glass approx 110cm square

Post a similar request >

27 Oct

uPVC Double Glazing

Hemel Hempstead - HP2

Enquiry from: Jacky S

Start Date: Immediate

Looking at various options 2+ windows Supply and install

Post a similar request >

27 Oct

Replacement Glass Only

London - SE25

Enquiry from: Karen S

Start Date: Immediate

Call back anytime

Post a similar request >

27 Oct

uPVC Single Window

Birmingham - B24

Enquiry from: Jonathan L

Start Date: Immediate

Submit your free quote for rated tradespeople

Post a similar request >

27 Oct

uPVC Double Glazing

Lincoln - LN6

Enquiry from: Athira V

Start Date: Immediate

Call back anytime

Post a similar request >

27 Oct

uPVC Double Glazing

Exeter - EX3

Enquiry from: Miriam F

Start Date: Immediate

Submit your free quote for rated tradespeople

Post a similar request >

27 Oct

uPVC Single Window

Northolt - UB5

Enquiry from: Ganeshram M

Start Date: Immediate

Call back anytime

Post a similar request >

27 Oct

uPVC Double Glazing

Alton - GU34

Enquiry from: Moira S

Start Date: Immediate

Submit your free quote for rated tradespeople

Post a similar request >

26 Oct

uPVC Double Glazing

Belfast - BT5

Enquiry from: Catherine M

Start Date: Immediate

Replacement double glazed window

Post a similar request >

26 Oct

Replacement Glass Only

Grimsby - DN33

Enquiry from: Marea F

Start Date: Immediate

Wooden window repair Lead

Need a large single middle pane replacement on the front bay window

Post a similar request >

26 Oct

Replacement Glass Only

Doncaster - DN8

Enquiry from: Gail B

Start Date: Immediate

Replacement glass for a shattered double glazed conservatory window small window ASAP as the bungalow has sold

Post a similar request >

25 Oct

Window Repair

Yeovil - BA21

Enquiry from: Martin W

Start Date: Immediate

Wooden window repair Lead Wooden window repair Lead Wooden window repair Lead

Need to replace friction hinges on top hang upstairs window. Ive trued replacing with a hinge already but window on replacement side sits to low to.close. Ive tried looking for the same hinge but not

Post a similar request >

View Shortlist