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Verified ProOver 50 Reviews

Britelite Windows

156 review(s)
Offers services in HARROW
We fit high quality double glazing and the next generation triple glazing, using only the best materials. Fully guaranteed...
Verified ProOver 50 Reviews
Mitchell Landscaping have been established for 10 years, offering quality advice and services in landscaping, Gardening a...
Verified ProOver 50 Reviews
Crystal is a uPVC Windows and Double Glazing manufacturer and installer. We have built a strong reputation in London and t...
Verified Pro
Welcome to Haas Extension Group, where we take pride in being the premier suppliers, installers, and design consultants of...
Verified Pro

Jassi Builders

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

Recent Window Installer Enquiries

11 Jun

Windows | uPVC

Harrow - HA2

Enquiry from: Suresh K

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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28 May

Building Work | Porch

Harrow - HA3

Enquiry from: Rasik V

Start Date: Immediate

are you the home owner of that property? - -yes. are you replacing an existing porch or is this a new build? - new vbuild. what material do you require, upvc? - unsure. what colour do you want it to b...

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08 May

Windows | uPVC

Harrow - HA2

Enquiry from: Mervat C

Start Date: Immediate

Customer made an online enquiry for quotes for double glazing replacement via one of our websites. Customer lives in Harrow area and is considering a range of options for their home. Confirmed interes...

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07 May

Windows | uPVC

Harrow - HA2

Enquiry from: Farida G

Start Date: Immediate

Customer is looking to have new windows installed. They are unsure of options so would like to discuss. Confirmed interest via Customer lives in Harrow area 2+ windows Supply and install Please call ...

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03 May

Windows | uPVC

Harrow - HA3

Enquiry from: Joy S

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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28 Apr

Windows | uPVC

Harrow - HA3

Enquiry from: Hina P

Start Date: Immediate

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

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22 Apr

Windows | uPVC

Harrow - HA2

Enquiry from: Selma F

Start Date: Immediate

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

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20 Apr

Windows | uPVC

Harrow - HA2

Enquiry from: Basgaran S

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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18 Apr

Windows | uPVC

Harrow - HA1

Enquiry from: Kalyan P

Start Date: Immediate

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

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15 Apr

Windows | uPVC

Harrow - HA2

Enquiry from: Rosemary M

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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14 Apr

Windows | uPVC

Harrow - HA3

Enquiry from: Minaz L

Start Date: Immediate

Customer is looking to have new windows installed. They are unsure of options so would like to discuss. Confirmed interest via Customer lives in Harrow area 2+ windows Supply and install Please call ...

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10 Apr

Windows | uPVC

Harrow - HA3

Enquiry from: Bhav P

Start Date: Immediate

Hello! Looking to replace 45 year old Aluminium Windows on a Semi Detached House with Slim/Low Profile Thin & Flush Fitting UPVC Windows. RAL7016 Anthracote Grey on Exterior & White on Interior. Consi...

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01 Apr

Windows | uPVC

Harrow - HA3

Enquiry from: Aleksandra B

Start Date: Immediate

Replace window with frame with window ledge

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01 Apr

Windows | uPVC | Single Window

Harrow - HA3

Enquiry from: Aleks B

Start Date: Immediate

Are you the home owner of that property? - yes. How many windows are you considering replacing? - 1. What material do you require, UPVC? - upvc. What colour do you want them to be? - white. I assume y...

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08 Jan

Windows | uPVC

Harrow - HA1

Enquiry from: Jaime B

Start Date: Immediate

What best describes your living situation? - -. Are you the home owner of that property? - -. How many windows are you considering replacing? - -. What material do you require, UPVC? - -. What colour ...

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20 Nov

Windows | uPVC

Harrow - HA2

Enquiry from: Pathmini C

Start Date: Immediate

Are you the home owner of that property? - How many windows are you considering replacing? 1 What material do you require, UPVC? - What colour do you want them to be? - Do you require doors If so how ...

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17 Sep

Windows | uPVC

Harrow - HA2

Enquiry from: Manish P

Start Date: Immediate

Are you the home owner of that property? Landlord How many windows are you considering replacing? 2 Doors What material do you require, UPVC? UPVc What colour do you want them to be? - Do you require ...

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27 Aug

Windows | uPVC

Harrow - HA2

Enquiry from: Selvarajah L

Start Date: Immediate

Are you the home owner of that property? - How many windows are you considering replacing? - What material do you require, UPVC? - What colour do you want them to be? - Do you require doors If so how ...

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27 Aug

Windows | uPVC

Harrow - HA3

Enquiry from: O K M

Start Date: Immediate

Are you the home owner of that property? Yes - Joint How many windows are you considering replacing? Employed What material do you require, UPVC? UPVC What colour do you want them to be? - Do you req...

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17 Aug

Windows | Wooden | Repair

Harrow - HA3

Enquiry from: Tony B

Start Date: Immediate

I’ve a timber window needing two casements repaired/replaced. Existing frame is sound but needs refurbed.

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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 Harrow is:

£1,795

Window Installer job Window Installer cost in 2025
Double glazing in Harrow £988-£3,100
Upvc double glazing units only in Harrow £575-£900
Triple glazing in Harrow £988-£3,100
Aluminium windows in Harrow £1,373-£2,088
Wooden window in Harrow £3,750-£5,750
Aluminium windows supply only in Harrow £1,600-£2,500
Upvc or wood porch in Harrow £2,625-£4,025
Sash window in Harrow £1,138-£3,600
Glaziers in Harrow £57-£87
Secondary glazing in Harrow £988-£3,100
uPVC Single Window in Harrow £225-£345
Wooden sash windows in Harrow £3,750-£5,750
Wooden windows supply only in Harrow £2,760-£4,140
Aluminium repair in Harrow £240-£360
Window repair in Harrow £268-£402
Wooden window repair in Harrow £320-£480

Related Window Installer searches in Harrow

Window Installer FAQs

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.

Will a new double glazed window look different to existing ones?

It depends on a few factors whether a new double glazed window will look different to existing ones. If your existing windows are very old, perhaps 10 years or more, then it’s likely that there will be some small differences.

The first thing to remember is that your double glazing is exposed to the elements as soon as it’s installed. So over time, unless you’re very good at cleaning and maintaining your windows, they’re likely to look a bit dirty. Window frames that are south-facing may also become slightly discoloured from the sun, so if you install a new window right next to it you might notice a difference.

Also, there have been lots of technical advances in windows over the years. If your existing windows are significantly older, you might notice a difference in the handles on openers, and if your existing windows were installed before 2010 they might not have trickle vents, which is an extra strip on the inside of your window to keep air flowing through your home. While it’s not a legal requirement for replacement windows to have trickle vents if the original one didn’t, it’s a good idea to have them installed as they help prevent condensation and mould.

The only truly noticeably different elements to a new double glazed window compared with existing ones are likely to be on the inside, which might not be a problem for you if you only have one window in a room. However, if you know the brand of your existing windows, you can ask your window installer if they can source the same ones. Even if they’ve been updated slightly, the difference should be minimal.

how much does a porch cost?

Are you interested in constructing a porch to your property? Estimating the cost of the project before proceeding will solve a lot of possible headaches in the future.

A porch is great place where you can keep your shoes, jackets, dog leads as well as other items to create free space within the property. Apart from this, a porch also serves numerous other purposes to make it a very good structure to have on your property. Not only is it a good means to put a roof over your head when it’s pouring with rain, but also a highly economical way to add floor space to your home. The question, however, how much would it cost to build a porch?

The price of building a porch is based on a wide variety of factors such as the type of materials required, the size of the porch, location of the structure and lots more. As a result, you should note that this guide provide figures that are only a rough guide that’ll put you on the right direction to make informed decisions.

Depending on the type of porch you choose to build, the average cost range from £1,900 to £2,100 for a uPVC porch and up to £10,000 for a lean to porch. There are other types of porch including the traditional porches ( Edwardian and Victorian porches) costing within a range of £2,500 to £8,400.

The materials required also has a great influence in determining the price of a porch. An aluminium porch will cost between £7,5000 to £8,200, while a brick porch will cost slightly less between the range of £2,000 to £8,000. They can both be constructed either as a front porch or as a rear porch, but due to fewer restrictions on aluminium porch, it can be made a lot larger.

What are the other double glazing options?

Double glazing frames don’t just have to come in uPVC and are available in other materials including aluminium and wood too. Wooden or timber windows are more suited to properties with a traditional look and are often the frame of choice for listed buildings and homes in conservation areas. When properly maintained wooden windows can last well for years but can be up to three times more expensive than uPVC.Aluminium is the strongest and most durable option. As a metal it is highly resistant to the UK’s changing weather conditions and won’t rust, warp, crack or peel. Aluminium offers a modern appeal and is available in a range of colours.

How to remove a aluminium double glazed window?

Removing a double glazed window can be quite labour intensive. If you decide to try it yourself, make sure you give yourself plenty of time, and wear gloves and goggles.

Begin by unscrewing all opening windows at the hinges and removing them. Then take away the beading and putty around any fixed panes and take them out too.

Once you’ve removed all the glass, use a saw to put angled cuts in the frame, and a bar and hammer to remove it in sections. You should remove the sill if you’re going to replace that too.

Finally, cut through any screws holding the frame into place with a hacksaw.

Will double glazing increase my property’s value?

These days, buyers expect homes to have double glazing. People recognise the benefits of installing double glazing, so if you don’t have it installed you should consider it. You’ll increase your property’s value and give it a better chance of selling faster, since single glazed properties are also more likely to have problems with damp and mould which could put buyers off.

How much is window repair?

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.

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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