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Verified ProOver 50 Reviews

Britelite Windows

156 review(s)
Offers services in HARPENDEN
We fit high quality double glazing and the next generation triple glazing, using only the best materials. Fully guaranteed...
Verified ProOver 50 Reviews

Crystal Windows and Doors

64 review(s)
Offers services in HARPENDEN
Crystal is a uPVC Windows and Double Glazing manufacturer and installer. We have built a strong reputation in London and t...
Verified Pro

MCC Service London

0 review(s)
Offers services in HARPENDEN
MCC Services London Ltd. is a specialist building company located in North London and covering all of London and the surro...
Verified Pro

DK construction solutions

0 review(s)
Offers services in HARPENDEN
At DK Construction Solutions, we bring your vision to life with a wide range of expert services, including: Tiling: Per...
Verified Pro

Handyfox

0 review(s)
Offers services in HARPENDEN
If need home repairs or have a list of things to do around the house, and you are having trouble finding a skilled handyma...

Recent Window Installer Enquiries

18 Mar

Windows | uPVC

Harpenden - AL5

Enquiry from: ALLY M

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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15 Dec

Windows | uPVC

Harpenden - AL5

Enquiry from: Jeremy N

Start Date: Immediate

Replacement sealed glazing unit 1100mm x 970mm on the ground floor, looking for an approximate cost. Thanks

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16 Nov

Windows | uPVC | Single Window

Harpenden - AL5

Enquiry from: Lester F

Start Date: Immediate

sell 1 times are you the home owner of that property? joint homeowner how many windows are you considering replacing? 1 what material do you require, upvc? upvc what colour do you want them to be? wh...

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10 Sep

Windows | uPVC

Harpenden - AL5

Enquiry from: John C

Start Date: Immediate

mr requested quotes for upvc double glazing from a window installer around harpenden. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the inform...

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05 Sep

Building Work | Porch

Harpenden - AL5

Enquiry from: Daryl B

Start Date: Immediate

Looking to create a porch area on our terraced property. Porch to contain a small coat rack and boiler. Work needed to completed asap.

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14 May

Windows | uPVC

Harpenden - AL5

Enquiry from: Ting G

Start Date: Immediate

customer made an enquiry for upvc double glazing and confirmed on the quotatis site they would like quotes from a window installer.customer lives in the harpenden area and would like a call to discuss...

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01 Apr

Windows | uPVC

Harpenden - AL5

Enquiry from: Kathleen B

Start Date: Less than one month

best time: any work type: upvc windows and doors are you the property owner: owner of the property what level of service do you require: supply and installation of full unit property type: terrace how...

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21 Mar

Windows | uPVC

Harpenden - AL5

Enquiry from: Kenny M

Start Date: Immediate

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

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13 Oct

Windows | uPVC

Harpenden - AL5

Enquiry from: Rubina F

Start Date: Immediate

windows - flush upvc windows in white for the whole house with half georgian astragal bars. door - a large set of sliding doors, two sets of french doors and a side door. i am looking for quotes for ...

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08 Jun

Windows | uPVC

Harpenden - AL5

Enquiry from: Tim D

Start Date: Less than one month

best time: any work type: upvc windows

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19 Mar

Windows | Wooden | Repair

Harpenden - AL5

Enquiry from: Philip D

Start Date: 1 to 3 months

Replacement of slim-line sealed double-glazed units (wooden frames) Number of Windows: 5+ Windows Need Doors: Back Door Material: Wood Are you the property owner: Owner of the property What level of s...

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30 Jan

Windows | uPVC

Harpenden - AL5

Enquiry from: Alex M

Start Date: Immediate

Are you the home owner of that property? homeowner How many windows are you considering replacing? multiple What material do you require, UPVC? UPVC What colour do you want them to be? White Do you re...

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24 Jan

Building Work | Porch

Harpenden - AL5

Enquiry from: Esra E

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 Build What material do you require, UPVC? UPVC What colour do you want it to be? White I as...

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14 Dec

Windows | uPVC

Harpenden - AL5

Enquiry from: Mark D

Start Date: Immediate

Passanger quarter window replacement

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04 Oct

Windows | Glazing

Harpenden - AL5

Enquiry from: Greg H

Start Date: Immediate

Customer visited the mywindowsprices.co.uk site and submitted an enquiry. Glazing type: Double, Work description: Install three sets of French doors Are you the property owner: Owner of the property W...

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29 Mar

Windows | uPVC

Harpenden - AL5

Enquiry from: Fiona M

Start Date: Immediate

Home Owner UPVC Supplied and Fitted Call to Appoint

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04 Dec

Windows | uPVC

Harpenden - AL5

Enquiry from: Paul B

Start Date: Less than one month

*Property owner 2+windows uPVC Supplied and fitted Please call to appoint

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01 Dec

Windows | uPVC | Single Window

Harpenden - AL5

Enquiry from: Paul B

Start Date: Less than one month

I am looking for quotes for 1 uPVC windows Are you the property owner: Owner of the property What level of service do you require: Supply and installation of full unit Property Type: Terrace How many ...

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30 Aug

Windows | uPVC

Harpenden - AL5

Enquiry from: Suzanne C

Start Date: Less than one month

*Property owner 2+windows uPVC Supplied and fitted Please call to appoint

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30 Aug

Windows | Wooden

Harpenden - AL5

Enquiry from: Suzanne C

Start Date: Less than one month

Are you the property owner: Owner of the property What level of service do you require: Supply and installation of full unit Property Type: Terrace How many windows do you need: 1 Window Material: Woo...

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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 Harpenden is:

£2,082

Window Installer job Window Installer cost in 2025
Double glazing in Harpenden £1,500-£5,000
Upvc double glazing units only in Harpenden £800-£1,200
Triple glazing in Harpenden £1,500-£5,000
Aluminium windows in Harpenden £1,875-£2,875
Wooden window in Harpenden £3,750-£5,750
Aluminium windows supply only in Harpenden £2,600-£3,900
Upvc or wood porch in Harpenden £2,625-£4,025
Sash window in Harpenden £1,800-£6,000
Glaziers in Harpenden £57-£87
Secondary glazing in Harpenden £1,500-£5,000
uPVC Single Window in Harpenden £225-£345
Wooden sash windows in Harpenden £3,750-£5,750
Wooden windows supply only in Harpenden £2,760-£4,140
Aluminium repair in Harpenden £240-£360
Window repair in Harpenden £268-£402
Wooden window repair in Harpenden £320-£480

Related Window Installer searches in Harpenden

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.

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 much could I save on my energy bills if I install double glazing?

As well as keeping your home warmer and reducing noise, you’ll notice a saving on your energy bills from installing double glazing. If you install A++ rated windows in your home after having single glazing, you could save up to £120 year on your energy bills. The Energy Saving Trust has more information.

How much is a single window?
Sometimes accidents happen, and that leads to you needing to replace just a single window. Luckily, most window fitters are happy to replace just one window if you need to. But how much a single window costs will depend on a few factors. Firstly, do you need the entire window, including the frame, replaced, or just the sealed unit? If the frame is still in good condition, glaziers and some window installers can replace the sealed unit and this will set you back around £250. If your window frame is damaged, don’t try to get away with not replacing it. Having a broken window frame can let heat escape your home, increasing your energy bills, and you’re likely to hear more traffic noise. Plus, if the frame is broken you might have trouble closing the window properly, stopping you from keeping your home secure. So how much is a single window if you need the whole thing replaced? You should expect it to cost between £400-£550, but it could cost more or less than this depending on your location, the size of the window and how tricky it is to replace. There are other factors that will impact the cost of replacing a single window. Do you want the window to have plain, leaded or Georgian bar glass? Maybe it will be a casement window, or a bay, bow or sash? The cost will increase if you want more than one opener if it’s a large window, and if you want it to have locks. Also, the standard white uPVC frame colour will probably be included in the price, but if you want a woodgrain look or a different colour uPVC this will cost more.

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.

How to fit aluminium double glazed window?

Whether you’re hiring a professional to replace your double glazing or are considering DIY, it’s a good idea to know how to fit a double glazed window.

You need to start by assembling your window. Fit any handles and cut the outer sill to size by measuring the outer wall depth. Then, screw the outer sill to the window frame and attach the frame fixers. Screw the ventilation grilles onto the inside of the frame and fix the vents on.

Next, you need put the window into place, using spacers to wedge it in. Use a spirit level to check it’s level horizontally and vertically, adding extra spacers if needed. Then, fix the frame into place at each fixing point using a drill, wall plugs and screws. Measure and cut the interior sill, and check that it’s level, adding spacers if needed. Then fix it using screws, masonry nails or adhesive.

Finally, fill in any wide gaps with foam filler and small gaps with sealant. You can get interior and exterior trims to cover these up, making your window look neat and professional.

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.

how much does double glazed windows cost?

Are you looking to replace your old window for a new double glazed window and wondering what it’s going to be the cost? Well, the double glazed windows market is a very competitive one in the UK with varying prices across the country. Therefore, if you shop around you’re most likely to find something that’ll fit your budget both products and quality wise.

As you would have expected, the more windows you required the more money you are going to spend. However, the cost per window is likely going to be lower depending on the number of windows you purchase. Several double glazed windows come with a 10 year warranty but it’s advisable to also obtain a solid workmanship warranty which provides coverage for any potential problems for a good period of time upon installation.

To determine the cost of double glazed windows, there are so many things to put into consideration that just the primary dimensions of the window itself. Other factors that works to decrease or increase the cost of the project includes the frames’ quality as well as the material used. For example hardwood can be quite high priced when compared to uPVC.

The number of opening windows within the frame can also play a huge role in the cost of the windows as well as the type of the glass. 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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