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Verified Pro
Hi we are All Seasons Roofing And Roughcasting based in Edinburgh , we provide quality work at a fair price & we pride our...
Verified Pro

Owensdrivesandpatiosltd

0 review(s)
Offers services in SCOTLAND
Owen's Drives and Patios Ltd specializes in designing and constructing durable driveways and patios that withstand all wea...

Webb Windows & Doors

0 review(s)
Offers services in SCOTLAND
Webb windows and doors is a family run business based in Kilmarnock, Ayrshire . Our experienced staff will provide top q...

Homesealed

0 review(s)
Offers services in SCOTLAND
At Home sealed Scotland we take installing quality products seriously, so much so all our doors and windows come with an e...
Over 20 Reviews
With over 50 years of experience in the windows and doors industry, CR Smith is firmly established as Scotland’s leading h...

Replace Windows

0 review(s)
Offers services in SCOTLAND
Re:Place Windows Limited aren’t like other double glazing companies. We don’t have any salespeople. We don’t come to your...

Recent Window Installer Enquiries

14 Oct

Replacement Glass Only

Muir of Ord - IV6

Enquiry from: Kathleen H

Start Date: Immediate

Small window on flat roof glass broken

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13 Oct

uPVC Double Glazing

West Kilbride - KA23

Enquiry from: Kathryn D

Start Date: Immediate

Replace bathroom window and living room bay windows with UPVC

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06 Oct

Window Repair

Stirling - FK8

Enquiry from: Sergey E

Start Date: 3+ months

Skylight window repair

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29 Sep

Wooden Window Repair

West Kilbride - KA23

Enquiry from: Allan G

Start Date: Immediate

Dormer window wood needs repaired/replaced

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29 Sep

uPVC Double Glazing

Glasgow - G78

Enquiry from: Samarna K

Start Date: Immediate

Call back anytime

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29 Sep

uPVC Double Glazing

Glasgow - G66

Enquiry from: Stephen B

Start Date: Immediate

Submit your free quote for rated tradespeople

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22 Sep

Wooden Window Repair

Cupar - KY14

Enquiry from: Sue H

Start Date: Immediate

Wooden window repair Lead Wooden window repair Lead

I need 2 wooden outside window sills replacing with wooden sills as in conservation area approx. 69 inches long on my ground floor flat

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11 Sep

Wooden Window Repair

Aberdeen - AB16

Enquiry from: William R

Start Date: Immediate

Remove silicone around window frames and replace with white silicon 6 large windows and 2 small windows at side

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09 Sep

Replacement Glass Only

Paisley - PA2

Enquiry from: Henry C

Start Date: 3+ months

Replacement glass in skylight

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07 Sep

uPVC Double Glazing

Edinburgh - EH8

Enquiry from: Marjory W

Start Date: Immediate

Call back anytime

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04 Sep

Window Repair

Moffat - DG10

Enquiry from: Lorna W

Start Date: Immediate

Need kitchen window checked bad with condensation inbetween window and draughts coming in ..a think may need sealed and back door not shutting properly at times keeps sticking when closing door

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04 Sep

uPVC Double Glazing

Peterhead - AB42

Enquiry from: Michelle N

Start Date: Immediate

Kitchen design & installation

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25 Aug

uPVC Double Glazing

Inverness - IV2

Enquiry from: VK K

Start Date: Immediate

Mr lives in the inverness area and would like a call to discuss options

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11 Aug

Replacement Glass Only

Fort Augustus - PH32

Enquiry from: Isabelle P

Start Date: Immediate

Replacement glass for downstairs window, which *** side a*** high

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10 Aug

uPVC Double Glazing

Arbroath - DD11

Enquiry from: Kimberly C

Start Date: Immediate

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29 Jul

Replacement Glass Only

Appin - PA38

Enquiry from: Andy M

Start Date: Immediate

We have four velux windows with failed sealed units (GGL 104) but otherwise in good condition. Velux no longer support this model so I wondered if you might be able to supply and fit replacement sash

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29 Jul

Replacement Glass Only

Banchory - AB31

Enquiry from: Mark S

Start Date: Immediate

Wooden window repair Lead

An outer glass pane measuring about 199 cm x 63 cm at our front window has been shattered by a stone chip. *** (inside) glass pane of the double glazing is still intact. The window frame is wood. Plea

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29 Jul

Replacement Glass Only

Lairg - IV27

Enquiry from: Caroline B

Start Date: Immediate

We need a replacement pane of glass for a double glazed sealed unit with a hole pre cut in it to fit a cat flap

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20 Jul

uPVC Double Glazing

Shetland - ZE1

Enquiry from: Fiona M

Start Date: Immediate

Call back anytime

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08 Jul

uPVC Double Glazing

Orkney - KW17

Enquiry from: Carol C

Start Date: Immediate

2+ windows Supply and install

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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 Scotland is:

£2,513

Window Installer job Window Installer cost in 2026
Double glazing in Scotland £1,250-£7,500
Upvc double glazing units only in Scotland £800-£1,200
Triple glazing in Scotland £1,250-£7,500
Aluminium windows in Scotland £1,875-£2,875
Wooden window in Scotland £3,750-£5,750
Aluminium windows supply only in Scotland £2,600-£3,900
Upvc or wood porch in Scotland £2,625-£4,025
Sash window in Scotland £1,400-£8,000
Glaziers in Scotland £57-£87
Secondary glazing in Scotland £1,250-£7,500
uPVC Single Window in Scotland £225-£345
Wooden sash windows in Scotland £3,750-£5,750
Wooden windows supply only in Scotland £2,760-£4,140
Aluminium repair in Scotland £240-£360
Window repair in Scotland £268-£402
Wooden window repair in Scotland £320-£480

Related Window Installer searches in Scotland

Window Installer FAQs

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 does Aluminium double glazing work?

Double glazing is made up of two layers of glass, with a layer of argon gas in between. This type of glass can be used in Aluminium windows. The gas is a poor insulator, helping heat to stay in your home and making your windows more efficient. As well as trapping the argon gas, the second layer of glass reduces the amount of noise that enters your property, and helps to make your windows stronger and more secure.

Should I use a Fensa registered installer?

Using a Fensa registered installer isn’t compulsory but it helps to protect you from cowboys and rogue traders. It will also make life a whole lot easier in regards to Building Regulations. Replacement windows must meet a certain energy efficiency rating and once fitted you need a certificate to show your installation complies. By using a Fensa registered company they’ll issue this certificate, otherwise you’ll need the council to look at the new windows.

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.
Can I fix glass on one side of a double glazed window?

Unfortunately, you can’t fix the glass on one side of a double glazed window. That’s because they’re sealed units – once one pane of glass is broken, that will break the seal and its thermal insulation properties will be lost.

The good news is that if your window frame is still looking great, there’s no need to replace that. You can simply replace the glass in the window, which will cost much less. You can look to spend around £250 on a sealed unit, whereas a whole replacement single window may cost up to £600.

When an installer comes to replace the glass in your double glazed window, they will survey the inside and outside of your home around the window, then move any furniture by the window so they’ve got access. They should then pop a dust sheet down to stop any debris from getting on your floor.

Then, the installer will carefully remove the beads from the frame. They will then lift the glass out of the frame and put it somewhere safe before cleaning out all of the dust and any debris that has found its way into the frame. Using spacers at the bottom of the frame, the installer will make sure that the sealed unit is square in the frame to get a good fit. Once they’re happy, they will replace the beading and make sure it looks perfect before cleaning up their tools.

You could have a go at replacing the glass on a double glazed window yourself, but it’s not recommended. Leave it to the professionals who will know exactly what to do and will be able to do it quickly and safely.

Can you replace just one double glazed window?

Yes, of course! It’s common for people to replace just one double glazed window. One reason that people want to replace one window is that the sealed unit inside has failed. You’ll know if this has happened because you’ll be able to see condensation on the inside of glass, which gets frustrating because you can’t wipe it away. In this case, you can choose to simply replace the sealed unit or the entire frame, which you might want to do if it’s looking past its best.

When you’re replacing just one double glazed window, if you know the brand of your current windows you could ask your installer if they can source the same ones. This will help to keep them looking as similar as possible, although if your existing windows are very old you may notice some discolouration on the exterior compared to the new one, and locks and trickle vents might look different.

Replacing just one double glazed window shouldn’t take a qualified window fitter long, and could cost as little as £400. If you want to simply replace the sealed unit, that may only cost around £250. You could try to fit a new window yourself, but it’s worth bearing in mind that all replacement windows need to be certified that they’ve been installed to meet building regulations, so you’ll need to apply to your local building control officer who will come and inspect the work then issue a certificate. If you ask an installer who is registered with a self-certification scheme (like FENSA) to fit the window for you, they can issue the certificate themselves when they’ve finished the work.

How long do aluminium windows last?

How long your aluminium windows will last depends on their quality. They should last 20 -30 years at least, but have been known to stay in good condition for up to 45 years. This is considerably longer than uPVC and wooden double glazing.

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.

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