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Verified Pro

Essex Loft Extensions

0 review(s)
Offers services in LEWISHAM
Essex Loft Extensions was founded by a team of experienced local builders with a shared passion for residential constructi...
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House of Glass

2 review(s)
Offers services in LEWISHAM
House of Glass ltd are a genuine, family run, home improvement company specialising in replacement windows & doors , conse...
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Jassi Builders

2 review(s)
Offers services in LEWISHAM
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 !!!
Verified Pro
At wincanton building &Renovations we offer a complete building service from a simple dropping tap to a full property refu...

Recent Window Installer Enquiries

27 May

Windows | Glazing

Beckenham - BR3

Enquiry from: Abhinandan U

Start Date: Immediate

Call back anytime. Type of window / door: Windows Glass replacement only: Yes Number of windows requiring repair: 4 Number of doors requiring repair: 0 Other repair required: no Quote requ...

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01 May

Windows | uPVC

London - SE9

Enquiry from: Pauline S

Start Date: Immediate

Customer in London area made an enquiry for double glazing online. Confirmed via SMS at 14:34 Confirmed via email at 14:34 2+ windows Supply and install Please call to arrange an appointment to discus...

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22 Apr

Windows | Wooden | Repair

London - SE3

Enquiry from: Sam C

Start Date: Immediate

I'm refurbishing a 1960's house with its original white timber framed windows. They're a mix of single and double glazing - and also varying condition, from actually rather good condition (but still r...

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11 Mar

Windows | uPVC

London - SE12

Enquiry from: Phil H

Start Date: Immediate

2 ground floor windows replaced

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13 Feb

Windows | uPVC

Bromley - BR1

Enquiry from: Danielle C

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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04 Feb

Windows | uPVC

London - SE23

Enquiry from: Daniella C

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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11 Jan

Windows | uPVC

London - SE15

Enquiry from: Jacky C

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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08 Jan

Windows | uPVC

London - SE23

Enquiry from: Seyhan D

Start Date: Immediate

What best describes your living situation? - -. How many windows are you considering replacing? - -. What material do you require, UPVC? - -. What colour do you want them to be? - -. Do you require do...

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07 Jan

Windows | uPVC

London - SE6

Enquiry from: Jessica J

Start Date: Immediate

Call anytime. Number of windows: 6 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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23 Dec

Windows | uPVC

London - SE26

Enquiry from: Colette F

Start Date: Immediate

Customer made an online enquiry for new double glazing. Homeowner confirmed interest via Considering a range of options Homeowner lives in London area 2+ windows Supply and install Please call to arr...

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13 Dec

Windows | uPVC

London - SE16

Enquiry from: Aurora C

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 in...

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12 Dec

Windows | uPVC

London - SE15

Enquiry from: M

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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11 Dec

Windows | uPVC

London - SE14

Enquiry from: Clare B

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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10 Dec

Windows | uPVC

London - SE16

Enquiry from: S L

Start Date: Immediate

What best describes your living situation? - -. How many windows are you considering replacing? - -. What material do you require, UPVC? - -. What colour do you want them to be? - -. Do you require do...

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09 Dec

Windows | uPVC

Bromley - BR1

Enquiry from: Alexander S

Start Date: Immediate

Call any time. Number of windows: 5 Quote requested on windows, in PVCu, to be supplied and fitted.

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01 Dec

Windows | uPVC

London - SE8

Enquiry from: Prince E

Start Date: Immediate

Customer living in London area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via phone at 17:41/ SMS at 17:40 Homeowner needs advice on options 2+ wind...

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26 Nov

Windows | uPVC

London - SE15

Enquiry from: Jonathan E

Start Date: Immediate

Customer in London area made an enquiry for double glazing online. Confirmed via phone at 20:07 2+ windows Supply and install Please call to arrange an appointment to discuss options

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25 Nov

Windows | uPVC

London - SE14

Enquiry from: Marion W

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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19 Nov

Windows | uPVC

London - SE10

Enquiry from: Beatrice H

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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16 Nov

Windows | uPVC

London - SE6

Enquiry from: Slaine M

Start Date: Immediate

Customer in London area made an enquiry for double glazing online. 2+ windows Supply and install Please call to arrange an appointment to discuss options

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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 Lewisham is:

£1,977

Window Installer job Window Installer cost in 2026
Double glazing in Lewisham £1,050-£3,500
Upvc double glazing units only in Lewisham £800-£1,200
Triple glazing in Lewisham £1,050-£3,500
Aluminium windows in Lewisham £1,338-£3,188
Wooden window in Lewisham £3,750-£5,750
Aluminium windows supply only in Lewisham £2,600-£3,900
Upvc or wood porch in Lewisham £2,625-£4,025
Sash window in Lewisham £1,200-£4,000
Glaziers in Lewisham £57-£87
Secondary glazing in Lewisham £1,050-£3,500
uPVC Single Window in Lewisham £225-£345
Wooden sash windows in Lewisham £3,750-£5,750
Wooden windows supply only in Lewisham £2,760-£4,140
Aluminium repair in Lewisham £240-£360
Window repair in Lewisham £268-£402
Wooden window repair in Lewisham £320-£480

Related Window Installer searches in Lewisham

Window Installer FAQs

How can I find out how energy efficient my new windows will be?

All new windows come with an energy efficiency rating from A to G. A is best, while G is the lowest rating. Anything above C is considered good, but these days most companies will be able to supply you with A-rated windows to maximise your energy efficiency.

Are A-rated windows worthwhile?

On the grand scale of things there isn’t a huge difference between B-rated windows and A-rated windows. Consumer watchdog Which? have calculated an extra 6.5% would be saved on energy bills with A rather than B rated panes. Be aware that A rated windows are slightly more expensive, however.

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.

Where can I get one double glazed window?

Most window installers will be able to provide you with one double glazed window and fit it for you. If you’re replacing one double glazed window in your home, ask them to try and source the same windows that you already have or find one that’s very similar. Externally, you probably won’t be able to notice the difference, but if your existing windows are very old there may be some exterior discolouration and the locks and handles might look slightly different.

If you want one double glazed window so you can fit it yourself, there are lots of online companies that can supply you with one window. However, window fitting is a skilled trade and you might want to consider whether you have the right tools and experience to fit it yourself. Of course, you’ll save money on installation costs, but if something goes wrong, you might end up shelling out to get it fixed anyway.

The other thing to consider is that any replacement windows need to be certified that they meet Building Regulations. If you fit the double glazed window yourself, you’ll need to apply to your local council building control officer to get a certificate that confirms that you fitted the window within the regulations. You’ll have to pay a fee for this, and it will be even more expensive if Building Control say that the window hasn’t been fitted within the regulations and you have to start again.

The alternative is to ask a reputable window installer that is registered with a self-certification scheme, like FENSA, to install the window. That means that they can self-certify that the window meets building regulations once they’ve finished the installation.

How long does it take to install one small double glazed window?

To install one small double glazed window, it will take anywhere between two hours and half a day. It will depend on whether one installer is fitting your window or two. And if you’re doing it yourself and don’t have any professional experience, it will take even longer.

When the window fitters arrive, they will make sure they’ve got safe access to the window and move any heavy furniture if they need to. Any good installer will lay down a dust sheet, but it’s a good idea to check that they’ve got one laid down before they start.

The first step any window installer will take is to double check the measurements of the new frame against your existing one. Hopefully it should match up, so then they’ll take the old window out. Then, they’ll insert the new frame into the aperture and bolt it into the concrete. They'll check it with a spirit level to ensure it’s even before moving onto the glass sealed unit.

The installer will place the glass into the aperture, then fit the beads to secure the glass in the frame. They’ll then use silicone and trim on the inside and outside to ensure the window looks perfect. You won’t be able to see where they’ve used sealants or trims because they’ll colour match them so it’s not noticeable. Then, they’ll tidy up all of their tools and the working area and let you know what needs to be done in terms of proving that the window meets building regulations. Most good installers are registered with a self-certification scheme, so will be able to issue a certification once the work is complete.

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 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.

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.

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