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Verified ProOver 50 Reviews

Britelite Home Improvements

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

House of Glass

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

0 review(s)
Offers services in SITTINGBOURNE
All aspects of building work and refurbishment, using quality tradesmen. We look after 4 Churches in the area and have an ...

Recent Window Installer Enquiries

02 Aug

Windows | uPVC | Repair

Sittingbourne - ME10

Enquiry from: Karen C

Start Date: Immediate

Bedroom double glazed window needs fixing

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08 Dec

Windows | uPVC

Sittingbourne - ME10

Enquiry from: Veaceslav A

Start Date: Immediate

Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.

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24 Sep

Windows | uPVC

Sittingbourne - ME9

Enquiry from: Robert C

Start Date: Immediate

Call any time. Number of windows: 9 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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18 Aug

Windows | uPVC | Repair

Sittingbourne - ME10

Enquiry from: Chris H

Start Date: Immediate

window servicing possible repair

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18 Aug

Windows | uPVC

Sittingbourne - ME9

Enquiry from: Robert 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 SMS/ Customer lives in Sittingbourne area 2+ windows Supply and install P...

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25 Apr

Windows | uPVC

Sittingbourne - ME9

Enquiry from: Susanna W

Start Date: Immediate

What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - 4. What material do you require, UPVC? - UPVC. What colour do you want them to be? - Wh...

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22 Oct

Windows | uPVC

Sittingbourne - ME10

Enquiry from: Toni J

Start Date: Immediate

What would you like quoted? Windows & Doors

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09 May

Windows | uPVC

Sittingbourne - ME10

Enquiry from: Przemek S

Start Date: Immediate

Are you the home owner of that property? Joint 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 ...

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02 Oct

Windows | Glazing

Sittingbourne - ME9

Enquiry from: Shaun B

Start Date: Immediate

Customer made an online enquiry for Replacement Glass Only via one of our websites. Confirmed via SMS/. Please call to arrange an appointment to quote.

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29 Sep

Windows | uPVC

Sittingbourne - ME9

Enquiry from: Shaun B

Start Date: Immediate

Rectification of blown seal on 1.4 x 1.2m double glazed window where moisture is between the glazing. Do not want whole window replacement , merely require the seal integrity restored / moisture remov...

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25 Jul

Windows | uPVC

Sittingbourne - ME10

Enquiry from: Marie C

Start Date: Immediate

Replacement widows x 6, Front door and small French doors at rear

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19 May

Windows | uPVC

Sittingbourne - ME9

Enquiry from: Paula F

Start Date: Immediate

Replace 9 windows/ 1 door.

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04 Apr

Windows | Glazing

Sittingbourne - ME9

Enquiry from: Natale H

Start Date: Immediate

700mmx1300mm upvc white casement window. as you look up to property left hand window opens first then right window opens with central column attached so when both windows are open there are no obstruc...

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23 Feb

Windows | uPVC

Sittingbourne - ME10

Enquiry from: Chloe O

Start Date: Immediate

new double glazing windows in kitchen, lounge, landing and three bedrooms are you the property owner: owner of the property what level of service do you require: supply and installation of full unit p...

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20 Feb

Windows | uPVC | Repair

Sittingbourne - ME10

Enquiry from: Colin M

Start Date: Immediate

Hi Tony, When we last spoke you were going to a) confirm if you could replace the glass in the front door side panel on a like for like basis, and b) quote for replacing front of hours tiles with...

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17 Dec

Building Work | Porch

Sittingbourne - ME10

Enquiry from: Tracey G

Start Date: Immediate

Sell 3 Times 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 ...

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10 Nov

Windows | uPVC

Sittingbourne - ME10

Enquiry from: Russell D

Start Date: Immediate

Sell 1 Times Are you the home owner of that property? Joint Homeowner How many windows are you considering replacing? 1 (4000 X 1200) What material do you require, UPVC? UPVC What colour do you want ...

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05 Nov

Windows | uPVC | Single Window

Sittingbourne - ME10

Enquiry from: Mihaela C

Start Date: Immediate

Sell 2 Times Are you the home owner of that property? Yes How many windows are you considering replacing? 1 window 120 x 120 What material do you require, UPVC? UPVC What colour do you want them to b...

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29 Oct

Windows | uPVC

Sittingbourne - ME10

Enquiry from: Adebowale A

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. i am looking for quotes ...

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15 Mar

Windows | uPVC

Sittingbourne - ME10

Enquiry from: Jane O

Start Date: Immediate

*homeowner 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 Sittingbourne is:

£2,082

Window Installer job Window Installer cost in 2026
Double glazing in Sittingbourne £1,500-£5,000
Upvc double glazing units only in Sittingbourne £800-£1,200
Triple glazing in Sittingbourne £1,500-£5,000
Aluminium windows in Sittingbourne £1,875-£2,875
Wooden window in Sittingbourne £3,750-£5,750
Aluminium windows supply only in Sittingbourne £2,600-£3,900
Upvc or wood porch in Sittingbourne £2,625-£4,025
Sash window in Sittingbourne £1,800-£6,000
Glaziers in Sittingbourne £57-£87
Secondary glazing in Sittingbourne £1,500-£5,000
uPVC Single Window in Sittingbourne £225-£345
Wooden sash windows in Sittingbourne £3,750-£5,750
Wooden windows supply only in Sittingbourne £2,760-£4,140
Aluminium repair in Sittingbourne £240-£360
Window repair in Sittingbourne £268-£402
Wooden window repair in Sittingbourne £320-£480

Related Window Installer searches in Sittingbourne

Window Installer FAQs

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 long does double glazing last?

Just like every other thing in your house, your double glazed windows have an expected lifespan attached to it as it gradually becomes less functional and less efficient over time. Although there are actually top quality windows which are able to last a very long time, but the fact still remains that nothing can stand the test of time or last forever. Even the best quality double glazed windows will eventually need to be replaced at some point. So exactly how long do double glazing windows last before need a replacement?

To make it brief, most double glazing window units are typically expected to last an average of 20 years. This number of years can, however, vary within the range of 10 to 35 years based on the several factors such as the type, quality of materials as well as installation and where the windows are located.

The reason for the depreciation in double glazing windows is, over time, the windows may be subjected to some wear, tear as well as all kinds of minor damages which includes gas filled insulated glazing unit slowly and gradually leaking. According to the Centre for Sustainable Energy, the evaporation of 25 percent of gas will ultimately minimize the windows’ thermal performance. And when this occurs, fitting a secondary glazing measure or replacing the windows should be put into consideration.

Another factor leading to the gradual depreciation in double glazing windows over time has to do with condensation. When the window collects between the layers of glass due to the failure of the seal of the perimeter and the saturation of the desiccant, can only be solved by IGU replacement.

And finally, the ravages of time also has a way of taking its toll on double glazing windows. This can happen in so many ways such that the window becomes a lot less efficient and later needing to be replaced.

How to replace the glass in a uPVC window?
It’s not too difficult to replace the glass in a uPVC window, so if you’re a confident DIYer you could have a go at this yourself. We’ll go through the main steps on how to replace the sealed unit in a uPVC double glazed window:
  1. Using a rubber mallet and a strong pallet knife, remove the beading around the window. You might think they’re part of the frame, but they’re actually separate on the inside of the frame and can be taken out by using pallet knife to prize them out. Start with one of the longest beads first and leave the top bead until last.
  2. Give the glass a little tap to loosen it if it doesn’t come out straight away, then the whole unit should slide out easily. Just make sure it falls towards you and not back out onto the ground below!
  3. Clear any debris that has found its way into the frame with a brush. Add spacers at the bottom of the frame – these could be pieces of plastic.
  4. Get your new sealed unit (make sure you measure the glass before you buy one so you know which size to get) and carefully take it out of the packaging. Look for the British Standard mark – that shows you the bottom of the glass.
  5. Lift the glass into the frame, starting with the bottom first, and make sure that it fits square in the frame before taking the spacers out.
  6. Use a little washing up liquid to spread along the beads to make it easier when you slide them back into the frame. If they simply push and clip back in, you can use something like a block of wood to help you push them in correctly. Put them back in reverse order to how you took them out.
And there you go! If you’re feeling confident you can have a go at replacing the glass in your uPVC window yourself. But if you’ve got any worries, leave it to a window installer who will be able to do it in less than an hour.
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.

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.

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 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.
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.

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