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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

Jassi Builders

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

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 is a porch?

If you’ve decided to construct a porch to your property and now looking to figure out the cost required to complete the project, then you’re at the right place!

There are many factors that comes to play when determining the price of building a porch. These factors includes the size of the porch, the number of windows, the style of the roof as well as the type of the porch selected. Now let’s take a look at these factors one after the other.

• The Porch’s Size

As you would have correctly imagined, a large porch will definitely cost more money than a smaller one. A rough estimate of a porch’s cost per square metre is approximately £1,400.

• The Number Of Windows

Just like in the scenario above, the more the number of windows to be incorporated, the more money you’ll have to pay to complete your porch. A porch window will generally cost you within a range of £300 to £1,000

• The Style Of The Roof

There are two popular styles of porch’s roof which includes a tiled rood and a rubber flat roof. Generally, roof tiles are costlier than a rubber flat roof. A tiled roof would cost you between £0.80 to £1.80 per roof tile, while a rubber roofing will cost your between £70 to £90 per metre squared.

• Type Of The Porch

Another huge determinant of a porch’s price is type of material incorporated. For instance, if your preferred type is a lean-to, the price of a uPVC would be between £2,300 to £2,700. Meanwhile, a flat gable roof porch should cost within a range of £3,300 to £3,800.

Kindly note that the costs quoted in this article are only rough estimates, for a more accurate estimate you can contact a porch building professional within your local area.

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.

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.

how to fit a double glazed window?

Did you just purchase a double glazed window and confused about how to have it installed? Fitting the window yourself can be quite easy with the help of this step by step guide. However, if you lack proper training or experience, we’d recommend you reach out to a trustworthy professional who can guarantee the best results for help. That said, now let’s take a look at the process.

• Remove the old windows by detaching the old beading and glass window safely. Then make some interval cuts using a hand saw before using a crowbar to pry it out.

• Cut the external double glazed window seal. Once done, take a measurement of the window area’s width once empty. Then transfer the measurement to the window sil to face outside and cut using a handsaw.

• Seal the window sil. Add a bead of clear silicone along both inside lip as well as the centre to seal the sil.

• Screw the double glazed window to the sil. Position the window on the top of the lipped section that was siliconed. Then pre-drill them together and screw in three places. You should make sure the screws do not go totally to the sil’s bottom.

• Install the double glazed window. After successfully screwing the double glazed window to the sil, you can now fit in the double glazing. Make use of packers to make sure it’s even in the slot.

• Screw the uPVC window to the wall. If you’re happy and satisfied with the position of the window, you can then pre-drill through the frame of the window and the brick wall. Once done, simply screw it in place using masonry screws or Spax screw as they do not require crawl plugs in bricks.

• Seal around the window. To do this, simply fill any gaps with expanding foam, wipe out the excess and seal with silicone.

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.

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.

What happens to my old windows?

After fitting your new windows, your installer should take away and dispose of your old windows. If you want to keep them, just let your installer know before they start work. The UPVC frames are melted down and used on the unseen parts of new windows. Aluminium frames are re-smelted and wooden are broken down and used as chipboard.

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