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Verified Pro

Clear Drain Services

0 review(s)
Offers services in ST HELENS
All drainage works carried out. All property maintenance works carried out. Same day response.
Verified Pro

Envirohome reactive group

0 review(s)
Offers services in ST HELENS
Choose a Envirohome Reactive Group Ltd replacement conservatory roof, fully compliant with building regulations, and trans...
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City Group Managed Services

0 review(s)
Offers services in ST HELENS
City Group Managed Services, based in the North West of England, is a facilities management company that provides flexible...

Recent Window Installer Enquiries

03 Apr

Windows | uPVC

St. Helens - WA9

Enquiry from: Kieran A

Start Date: Immediate

Customer is looking to have windows installed. They are unsure what options to go for so would like to discuss directly multiple windows to be Supplied and installed Please call to quote.

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31 Mar

Windows | uPVC

St. Helens - WA10

Enquiry from: Michelle D

Start Date: Immediate

Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest 2+ windows Supply and install Please call to discuss options and arrange ...

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05 Mar

Windows | uPVC

St. Helens - WA11

Enquiry from: James G

Start Date: Immediate

Call anytime. 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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25 Feb

Windows | uPVC

St. Helens - WA11

Enquiry from: Shannon C

Start Date: Immediate

Call anytime. Number of windows: 6 Quote requested on windows, in PVCu, to be supplied and fitted.

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13 Feb

Windows | uPVC

St. Helens - WA9

Enquiry from: Michael B

Start Date: Immediate

Call back anytime. Number of windows: 4 Quote requested on windows, in PVCu, to be supplied and fitted.

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04 Feb

Windows | uPVC

St. Helens - WA9

Enquiry from: Matthew M

Start Date: Immediate

Call back anytime. Number of windows: 10 Quote requested on windows, in PVCu, to be supplied and fitted.

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04 Jan

Windows | uPVC

St. Helens - WA9

Enquiry from: Paul B

Start Date: Immediate

Call anytime Number of windows: 9 Quote requested on windows, in PVCu, to be supplied and fitted.

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29 Dec

Windows | uPVC

St. Helens - WA9

Enquiry from: Paul B

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 st. helens area 2+ windows supply and install plea...

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10 Dec

Windows | uPVC

St. Helens - WA11

Enquiry from: Sarah G

Start Date: Immediate

Are you the home owner of that property? - yes joint. How many windows are you considering replacing? - 4. What material do you require, UPVC? - -. What colour do you want them to be? - WHITE. Do you ...

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04 Dec

Windows | uPVC

St. Helens - WA11

Enquiry from: William F

Start Date: Immediate

Call anytime. Number of windows: 6 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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06 Nov

Windows | uPVC | Supply

St. Helens - WA10

Enquiry from: Sharon L

Start Date: Immediate

Wooden window repair Lead Wooden window repair Lead

Just one back door to the front of the house, smaller door than the average door

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24 Oct

Windows | uPVC

St. Helens - WA9

Enquiry from: Suzanne S

Start Date: Immediate

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

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17 Sep

Windows | uPVC

St. Helens - WA9

Enquiry from: Nasreen I

Start Date: Immediate

are you the home owner of that property? yes - sole how many windows are you considering replacing? 8-10 what material do you require, upvc? upvc what colour do you want them to be? white do you requi...

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17 Sep

Windows | uPVC

St. Helens - WA11

Enquiry from: Adele Q

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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16 Sep

Windows | uPVC

St. Helens - WA10

Enquiry from: Catherine W

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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16 Sep

Windows | uPVC

St. Helens - WA11

Enquiry from: John M

Start Date: Immediate

Are you the home owner of that property? Yes How many windows are you considering replacing? 8-10 What material do you require, UPVC? UPVC What colour do you want them to be? white Do you require door...

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16 Sep

Windows | uPVC

St. Helens - WA11

Enquiry from: Janet 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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16 Sep

Windows | uPVC

St. Helens - WA9

Enquiry from: Raymond T

Start Date: Immediate

Are you the home owner of that property? Yes - Joint How many windows are you considering replacing? 3 What material do you require, UPVC? UPVC What colour do you want them to be? White Do you require...

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16 Sep

Windows | uPVC

St. Helens - WA9

Enquiry from: Katherine G

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 ...

Post a similar request >

13 Sep

Windows | uPVC

St. Helens - WA11

Enquiry from: Michelle D

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 What colour do you want them to be? ANY Do you require doors If ...

Post a similar request >

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 St Helens is:

£2,082

Window Installer job Window Installer cost in 2025
Double glazing in St Helens £1,500-£5,000
Upvc double glazing units only in St Helens £800-£1,200
Triple glazing in St Helens £1,500-£5,000
Aluminium windows in St Helens £1,875-£2,875
Wooden window in St Helens £3,750-£5,750
Aluminium windows supply only in St Helens £2,600-£3,900
Upvc or wood porch in St Helens £2,625-£4,025
Sash window in St Helens £1,800-£6,000
Glaziers in St Helens £57-£87
Secondary glazing in St Helens £1,500-£5,000
uPVC Single Window in St Helens £225-£345
Wooden sash windows in St Helens £3,750-£5,750
Wooden windows supply only in St Helens £2,760-£4,140
Aluminium repair in St Helens £240-£360
Window repair in St Helens £268-£402
Wooden window repair in St Helens £320-£480

Related Window Installer searches in St Helens

Window Installer FAQs

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 much money will I save with double glazing?

By replacing the single glazed windows in your home you stand to make savings of around £170 each year. It’s not just the financial gain that makes double glazing attractive though and you can also save up to 680kg of carbon emissions annually. Over 20 years this is a saving of around £3,400 and 13,600kg of CO2.

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.

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 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.

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 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.

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