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Verified Pro

McFarlane Homes

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Offers services in DUNBARTONSHIRE
- Scottish Home Improvements Award Finalist “Best Window Installation Company” 2024 - Certass Accredited - Checkatrade A...
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Mccallum contracts

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Offers services in DUNBARTONSHIRE
We are a small sized family run enterprise covering edinburgh , stirling . And surrounding areas - stonemasonry - tim...
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K&D joinery

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Offers services in DUNBARTONSHIRE
We’re just a small building firm with just 10 men We cover all areas from Glasgow. Edinburgh. Perth. Dundee Fife. Stirl...

Recent Window Installer Enquiries

18 Mar

Windows | uPVC

Clydebank - G81

Enquiry from: Jordan N

Start Date: Immediate

customer is looking to have new windows installed. they are unsure of options so would like to discuss. confirmed interest via /phone customer lives in clydebank area 2+ windows supply and install ple...

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28 Oct

Windows | uPVC

Alexandria, Arrochar - G83

Enquiry from: Elizabeth T

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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28 Oct

Windows | uPVC | Single Window

Helensburgh - G84

Enquiry from: Jess M

Start Date: Immediate

Are you the home owner of that property? Yes How many windows are you considering replacing? 1 What material do you require, UPVC? UPVC (repair) What colour do you want them to be? - I assume you requ...

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22 Aug

Windows | uPVC

Clydebank - G81

Enquiry from: Sandra O

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 Clydebank area 2+ windows Supply and install Plea...

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07 Jan

Windows | uPVC

Dumbarton - G82

Enquiry from: BRIAN B

Start Date: Immediate

customer in dumbarton 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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07 Jan

Building Work | Porch

Dumbarton - G82

Enquiry from: BRIAN B

Start Date: Immediate

front porch supply and install are you the property owner: owner of the property do you have planning permission: no what material are you looking for: upvc what level of service do you require: suppl...

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11 Nov

Windows | Wooden | Repair

Helensburgh - G84

Enquiry from: Eileen M

Start Date: Immediate

A quote for a Replacement window price

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01 Nov

Windows | uPVC

Dumbarton - G82

Enquiry from: Diane M

Start Date: Immediate

Wooden window repair Lead

Upvc door and side panels

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04 Oct

Building Work | Porch

Helensburgh - G84

Enquiry from: Joseph P

Start Date: Immediate

flashing on porch roof replaced and interior walls of porch replastered and guttering on roof cleaned and repaired. are you the property owner: owner of the property do you have planning permission: n...

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05 Jun

Windows | uPVC

Helensburgh - G84

Enquiry from: Christina C

Start Date: Immediate

customer made an online enquiry for upvc double glazing and confirmed on telephone, sms and email they would like a call with a window installer to discuss prices.please call to arrange an appointment...

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04 May

Windows | uPVC | Single Window

Dumbarton - G82

Enquiry from: Garry C

Start Date: Immediate

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

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01 Sep

Building Work | Porch

Dumbarton - G82

Enquiry from: Susan G

Start Date: Immediate

Call any time. New build or replacement: Replacement Quote requested on a porch, in PVCu, to be supplied and fitted.

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23 Apr

Windows | uPVC | Single Window

Helensburgh - G84

Enquiry from: Joan N

Start Date: Immediate

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

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23 Apr

Windows | Glazing

Helensburgh - G84

Enquiry from: Joan N

Start Date: Immediate

replacement glass for double glazed window w. 45cms l .1m 15mms as it has clouded over. are you the property owner: owner of the property property type: detached are you looking for glaziers: yes how...

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15 Dec

Windows | uPVC

Helensburgh - G84

Enquiry from: Andrew R

Start Date: Less than one month

best time: any work type: upvc windows and doors

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08 Nov

Windows | uPVC

Dumbarton - G82

Enquiry from: Heather L

Start Date: Less than one month

*homeowner 5 windows 2 doors upvc supplied and fitted please call to appoint

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03 Nov

Windows | uPVC

Dumbarton - G82

Enquiry from: Margaret 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. property type: commercia...

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25 Sep

Windows | uPVC

Clydebank - G81

Enquiry from: Jordan 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 how many windows do you ne...

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08 Sep

Windows | uPVC

Helensburgh - G84

Enquiry from: Auriane J

Start Date: Less than one month

best time: any work type: upvc windows and doors i am looking for quotes for 4+ windows are you the property owner: owner of the property what level of service do you require: supply of full unit on...

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02 Aug

Windows | uPVC

Clydebank - G81

Enquiry from: Paul S

Start Date: Immediate

Customer living in Clydebank area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via Mr needs advice on options 2+ windows Supply and install Please c...

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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 Dunbartonshire is:

£2,513

Window Installer job Window Installer cost in 2025
Double glazing in Dunbartonshire £1,250-£7,500
Upvc double glazing units only in Dunbartonshire £800-£1,200
Triple glazing in Dunbartonshire £1,250-£7,500
Aluminium windows in Dunbartonshire £1,875-£2,875
Wooden window in Dunbartonshire £3,750-£5,750
Aluminium windows supply only in Dunbartonshire £2,600-£3,900
Upvc or wood porch in Dunbartonshire £2,625-£4,025
Sash window in Dunbartonshire £1,400-£8,000
Glaziers in Dunbartonshire £57-£87
Secondary glazing in Dunbartonshire £1,250-£7,500
uPVC Single Window in Dunbartonshire £225-£345
Wooden sash windows in Dunbartonshire £3,750-£5,750
Wooden windows supply only in Dunbartonshire £2,760-£4,140
Aluminium repair in Dunbartonshire £240-£360
Window repair in Dunbartonshire £268-£402
Wooden window repair in Dunbartonshire £320-£480

Related Window Installer searches in Dunbartonshire

Window Installer FAQs

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 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 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.

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 does it take to install one small double glazed window?

To install one small double glazed window, it will take anywhere between two hours and half a day. It will depend on whether one installer is fitting your window or two. And if you’re doing it yourself and don’t have any professional experience, it will take even longer.

When the window fitters arrive, they will make sure they’ve got safe access to the window and move any heavy furniture if they need to. Any good installer will lay down a dust sheet, but it’s a good idea to check that they’ve got one laid down before they start.

The first step any window installer will take is to double check the measurements of the new frame against your existing one. Hopefully it should match up, so then they’ll take the old window out. Then, they’ll insert the new frame into the aperture and bolt it into the concrete. They'll check it with a spirit level to ensure it’s even before moving onto the glass sealed unit.

The installer will place the glass into the aperture, then fit the beads to secure the glass in the frame. They’ll then use silicone and trim on the inside and outside to ensure the window looks perfect. You won’t be able to see where they’ve used sealants or trims because they’ll colour match them so it’s not noticeable. Then, they’ll tidy up all of their tools and the working area and let you know what needs to be done in terms of proving that the window meets building regulations. Most good installers are registered with a self-certification scheme, so will be able to issue a certification once the work is complete.

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.

What are the other double glazing options?

Double glazing frames don’t just have to come in uPVC and are available in other materials including aluminium and wood too. Wooden or timber windows are more suited to properties with a traditional look and are often the frame of choice for listed buildings and homes in conservation areas. When properly maintained wooden windows can last well for years but can be up to three times more expensive than uPVC.Aluminium is the strongest and most durable option. As a metal it is highly resistant to the UK’s changing weather conditions and won’t rust, warp, crack or peel. Aluminium offers a modern appeal and is available in a range of colours.

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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