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Verified Pro

House of Glass

2 review(s)
Offers services in LONDON
House of Glass ltd are a genuine, family run, home improvement company specialising in replacement windows & doors , conse...
Verified Pro
Concept Windows & Conservatories is a family run company. Established in 1987 we specialise in the installation of high qu...
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Jassi Builders

2 review(s)
Offers services in LONDON
Hi Jassi Builders LTD here, I am a specialist in planning, designing and building control services. I make sure that I hav...
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All accesss solutions with over 20 years experience fast and friendly service we aim to please !!!
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T&Q; / MASTER HANDYMAN

0 review(s)
Offers services in LONDON
T&Q / Master Handyman Ltd is a reliable and experienced construction and handyman company providing high-quality services ...

Recent Window Installer Enquiries

18 Jul

Windows | uPVC

London - N11

Enquiry from: Tanisha L

Start Date: Immediate

Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.

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17 Jul

Windows | uPVC | Repair

London - E4

Enquiry from: Joe M

Start Date: Immediate

To repair the side of the window that goes into the wall.

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16 Jul

Windows | uPVC

London - SE9

Enquiry from: Teresa H

Start Date: Immediate

Customer living in London area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via Homeowner needs advice on options 2+ windows Supply and install Pleas...

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07 Jul

Windows | uPVC

London - E11

Enquiry from: Pat P

Start Date: Immediate

Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest 2+ windows Supply and install Please call to discuss options and arr...

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06 Jul

Windows | uPVC

London - WC1X

Enquiry from: Kim S

Start Date: Immediate

Customer made an online enquiry for quotes for double glazing replacement via one of our websites. Customer lives in London area and is considering a range of options for their home. 2+ windows Supply...

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04 Jul

Windows | Aluminium | Repair

London - N5

Enquiry from: Barbara N

Start Date: Immediate

aluminium sash spring repair are you the property owner: owner of the property property type: terrace what service are you looking for: other how many windows are involved: one what material is the wi...

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19 Jun

Windows | uPVC

London - NW1

Enquiry from: Emma R

Start Date: Immediate

Customer is looking to have windows installed. They are unsure what options to go for so would like to discuss directly multiple windows to be Supplied and installed Please call to quote.

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17 Jun

Windows | uPVC

London - SW18

Enquiry from: Allan B

Start Date: Immediate

Existing bedroom bay window double glazing replacement (7 windows). Front Gable Bargeboard replacement with uPVC (Black) (1930s Mock Tudor Semi Detached House)

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15 Jun

Windows | uPVC

London - N12

Enquiry from: Avneet S

Start Date: Immediate

Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest 2+ windows Supply and install Please call to discuss options and arrange ...

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14 Jun

Windows | uPVC

London - NW9

Enquiry from: Ali A

Start Date: Immediate

Customer made an online enquiry for replacement windows via one of our websites. Confirmed via . 2+ windows Supply and install Please call to arrange an appointment to quote.

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09 Jun

Windows | uPVC | Repair

London - E4

Enquiry from: Kelly H

Start Date: Immediate

Bedroom window does not open the handle does not lift up I think the mechanism needs replacing

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04 Jun

Windows | uPVC

London - E14

Enquiry from: Gulam H

Start Date: Immediate

Customer is looking to replace their windows. They are still considering options so please call to discuss what would be best for their home. Homeowner lives in London area 2+ windows Supply and insta...

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01 Jun

Windows | uPVC

London - SW17

Enquiry from: Gina W

Start Date: Immediate

call anytime. number of windows: 7 number of doors: 2 quote requested on windows and doors, in pvcu, to be supplied and fitted. are you the property owner: owner of the property what level of se...

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31 May

Windows | uPVC

London - NW8

Enquiry from: Hanan J

Start Date: Immediate

Customer made an online enquiry for replacement windows via one of our websites. Confirmed via . 2+ windows Supply and install Please call to arrange an appointment to quote.

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19 May

Windows | Aluminium

London - N18

Enquiry from: Daniel S

Start Date: Immediate

customer made an enquiry for aluminium windows and confirmed on the local quotes site they would like quotes from a window installer.miss lives in the london area and would like a call to discuss opti...

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19 May

Windows | Wooden

London - N18

Enquiry from: Daniel S

Start Date: Immediate

customer in london area has requested that we arrange quotes for their wooden windows project.miss are considering various options and would like to discuss with a window installer directly.please cal...

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19 May

Windows | uPVC

London - N18

Enquiry from: Daniel S

Start Date: Immediate

customer in london area has requested that we arrange quotes for their upvc double glazing project.miss are considering various options and would like to discuss with a window installer directly.pleas...

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18 May

Windows | uPVC

London - E6

Enquiry from: Khalid D

Start Date: Immediate

Customer is looking to replace their windows. They are still considering options so please call to discuss what would be best for their home. Homeowner lives in London area 2+ windows Supply and insta...

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10 May

Windows | uPVC

London - E7

Enquiry from: Nabila P

Start Date: Immediate

Customer made an online enquiry for quotes for double glazing replacement via one of our websites. Customer lives in London area and is considering a range of options for their home. 2+ windows Sup...

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05 May

Windows | uPVC

London - W2

Enquiry from: Ashlee C

Start Date: Immediate

Probably need to replace all the windows in the flat/.

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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 London is:

£1,790

Window Installer job Window Installer cost in 2026
Double glazing in London £859-£2,734
Upvc double glazing units only in London £575-£900
Triple glazing in London £859-£2,734
Aluminium windows in London £1,182-£2,559
Wooden window in London £3,750-£5,750
Aluminium windows supply only in London £1,600-£2,500
Upvc or wood porch in London £2,625-£4,025
Sash window in London £959-£3,067
Glaziers in London £57-£87
Secondary glazing in London £859-£2,734
uPVC Single Window in London £225-£345
Wooden sash windows in London £3,750-£5,750
Wooden windows supply only in London £2,760-£4,140
Aluminium repair in London £240-£360
Window repair in London £268-£402
Wooden window repair in London £320-£480

Related Window Installer searches in London

Window Installer FAQs

What happens if I have problems with my new windows?

Ultimately the double glazing company you use is responsible for the quality of work and to ensure your windows are of an excellent standard. This is why it’s important to get a warranty and use a Fensa registered installer. If problems emerge within a couple of years then it’s likely the installation was of a poor standard.Contact the double glazing company and have the issue repaired or new windows replaced. This doesn’t matter if you received a discount of free windows as part of the deal. As long as you entered into a contract the company is obliged to restore the windows.

What if my home isn’t suitable for double glazing?

Some properties are unable to have double glazing, especially those in conservation areas or listed buildings. To counter this problem and still benefit from a warmer home and cheaper bills, secondary glazing is an option. Secondary glazing is a second pane fitted inside your original window. Secondary glazing will still save you around £105 yearly.

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.

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.

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.

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 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.

Can the glass in a double glazed window be replaced?
Yes, the glass in a double glazed window can be replaced. The glass in a window, or sealed unit to use its proper name, is not permanently attached to your window frames so if it gets damaged but your frames are still intact, there’s no need to replace the whole window. The glass in your double glazed window might need to be replaced due to:
  • Impact from a stone or other object smashing the glass in a ‘bullseye’ effect
  • The result of a break-in
  • Extreme weather or changes in pressure causing a crack
  • The sealed unit being ‘blown’, meaning that it’s no longer energy efficient due to air leaking out
A lot of window installers will replace the glass in your double glazing for you, but you might need to get quotes from specialist glaziers too. Glaziers deal purely with the glass in windows rather than installing entire frames. It won’t take a professional very long to replace the glass in your window. They will remove the beading from around the window with a pallet knife or chisel, leaving the top one until last to keep the sealed unit stable. Then, they simply lift out the glass carefully and will discuss with you whether the removal of the old sealed unit is included in their quote. Next, they will brush away any dust and debris that’s made its way into the frame and place spacers at the bottom. They will then lift the new glass into the frame, making sure it’s completely square. When they’re happy, they’ll remove the spacers and replace the beading back in reverse order. You’ll notice the replacement glass in your new window straight away as draughts should be eliminated and you’ll be able to see clearly again!

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