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Recent Window Installer Enquiries

10 Dec

Windows | uPVC

Harpenden - AL5

Enquiry from: Jade B

Start Date: Immediate

Call any time. 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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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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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 Harpenden is:

£2,082

Window Installer job Window Installer cost in 2026
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 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 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 to measure the glass for a window replacement?
If the glass in your window has been damaged, you might only need to replace that rather than your whole window frame. Common reasons for needing to replace the glass in your window include:
  • The glass has smashed from an impact such as a stone hitting it from a lawnmower
  • You have been broken into and suspects used the window to gain entry
  • The glass has blown (lost its airtightness) from constant water build-up around the seals, which is common in bathrooms
  • Extreme weather or pressure changes have caused a crack
If your frames are still intact and there’s nothing wrong with your window’s locks or trims, there’s no reason why you can’t just replace the sealed unit in your window. To help with the quotation process, a window installer may ask you to measure the glass for your window replacement. It’s pretty simple to just measure the sealed unit inside your window. There are just 3 steps you need to take:
  1. Including the beading (the plastic and rubber seals around the windows that can be removed), measure the width of the window frame.
  2. Do the same for the height of the window, making sure you include the beading.
  3. Then, take 10mm off each measurement, and you have the approximate size of your glass.
A reputable window installer will still make their own measurements before confirming the size of the glass in your window and going ahead and ordering the replacement. Make sure you get a range of quotes from local and national installers so you can compare the price and their quotation process.
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 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.

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.

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 do double glazed sealed units last?
When it comes to how long double glazed sealed units (the glass inside the window) last, a lot of it is down to the quality of the glass and the environment that your windows sit in. It’s not uncommon for your window frames themselves (especially if they are uPVC) to last longer than your sealed units. Sealed units are called that because they’re two panes of glass sealed together with an air gap in between. They use what’s called a ‘perimeter seal’ to protect the air gap between the panes, and is usually made of butyl mastic which retains a desiccant within a perforated metallic spacer bar. The desiccant’s job is to absorb any moisture which finds its way into the air gap to stop your window from misting up on the inside. When a sealed unit fails, or is ‘blown’, it’s usually because moisture builds up around the seal and causes it to fail. Sealed units won’t last forever, so you will eventually end up with condensation inside the panes of your double glazing, but in an ideal environment your double glazed sealed units could last up to 30 years, with some manufacturers claiming as long as 40 years. But they do require a bit of maintenance and the position of your windows will also make a difference as to how long they last. There are a few things that determine how long a sealed unit will last:
  • Climate - If your window faces south, it will be subject to direct sunlight for a lot of the day. This tends to cause the sealed unit to fail more quickly – a south-facing window may last between 10-25 years. This is because the spacer bars will twist as the temperature rises and causes the adhesive holding them together to eventually fail.
  • Moisture - Windows in kitchens and bathrooms tend to fail more quickly because they come into contact with moisture more often. For example, if water gets on your windowsill when you shower, the seal around the glass will come loose more quickly if it’s constantly wet.
When you replace the sealed units in your windows or get completely new double glazing, make sure you choose an installer that uses quality products and will take all the steps to ensure that your sealed units are kept away from moisture as much as possible.

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