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Verified Pro

Alexander Constructors

0 review(s)
Offers services in CAERPHILLY
South Wales, Penarth based design and build contractor. Projects completed include new houses, extensions, kitchens, bathr...
Over 20 Reviews

Securahome PVCu

26 review(s)
Offers services in CAERPHILLY
Est. in 1994, Securahome, based in Gorseinon, Swansea, offers a range of UPVC, timber and aluminium orangeries, windows, d...
Over 35 years’ experience, we offer the complete package from design to installation & 10 years beyond. We offer start to ...

Recent Window Installer Enquiries

20 Feb

Windows | uPVC | Repair

Caerphilly - CF83

Enquiry from: Justin G

Start Date: Immediate

Velux window has come out of it's runner and I can't put it back in.

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27 Oct

Windows | Glazing

Caerphilly - CF83

Enquiry from: Tracy H

Start Date: Immediate

Call back anytime. Type of window / door: Windows Glass replacement only: Yes Number of windows requiring repair: 4 Number of doors requiring repair: 0 Other repair required: no Quote requ...

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09 Sep

Windows | uPVC

Caerphilly - CF83

Enquiry from: Anne B

Start Date: Immediate

Call back anytime. Number of windows: 5 Quote requested on windows, in PVCu, to be supplied and fitted.

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15 Aug

Windows | uPVC

Caerphilly - CF83

Enquiry from: Ruth W

Start Date: Immediate

Customer is looking to have new windows installed. They are unsure of options so would like to discuss. Confirmed interest via Customer lives in Caerphilly area 2+ windows Supply and install Ple...

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14 Aug

Windows | uPVC

Caerphilly - CF83

Enquiry from: Rob E

Start Date: Immediate

Customer made an online enquiry for new double glazing. Homeowner confirmed interest via Considering a range of options Homeowner lives in Caerphilly area 2+ windows Supply and install Please c...

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12 Jul

Windows | uPVC

Caerphilly - CF83

Enquiry from: Jean W

Start Date: Immediate

Customer in Caerphilly area made an enquiry for double glazing online. Confirmed via SMS at 13:05 2+ windows Supply and install Please call to arrange an appointment to discuss options

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09 Jul

Windows | uPVC

Caerphilly - CF83

Enquiry from: Jean J

Start Date: Immediate

Customer is looking to have new windows installed. They are unsure of options so would like to discuss. Confirmed interest via Customer lives in Caerphilly area 2+ windows Supply and install Please c...

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09 Jun

Windows | uPVC | Single Window

Caerphilly - CF83

Enquiry from: Agnieszka U

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? - UNSURE. I assume...

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30 Apr

Windows | uPVC

Caerphilly - CF83

Enquiry from: Carl R

Start Date: Immediate

Customer made an online enquiry for quotes for double glazing replacement via one of our websites. Customer lives in Caerphilly area and is considering a range of options for their home. 2+ windows Su...

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13 Mar

Building Work | Porch

Caerphilly - CF83

Enquiry from: Rhodri W

Start Date: Immediate

i want a porch built at the back of the house are you the property owner: owner of the property what material would you like the roof made from: tile

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31 Jan

Windows | uPVC

Caerphilly - CF83

Enquiry from: J B

Start Date: Immediate

What best describes your living situation? - Homeowner - Joint. How many windows are you considering replacing? - 6. What material do you require, UPVC? - UPVC. What colour do you want them to be? - -...

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16 Jan

Windows | uPVC

Caerphilly - CF83

Enquiry from: Deb K

Start Date: Immediate

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

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10 Jan

Windows | uPVC

Caerphilly - CF83

Enquiry from: Hilda W

Start Date: Immediate

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

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07 Jan

Windows | uPVC

Caerphilly - CF83

Enquiry from: Jason S

Start Date: Immediate

What best describes your living situation? - -. Are you the home owner of that property? - -. How many windows are you considering replacing? - -. What material do you require, UPVC? - -. What colour ...

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16 Dec

Windows | uPVC

Caerphilly - CF83

Enquiry from: Robert M

Start Date: Immediate

Are you the home owner of that property? - yes. How many windows are you considering replacing? - 12. What material do you require, UPVC? - upvc . What colour do you want them to be? - WHITE . Do you ...

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11 Dec

Windows | uPVC

Caerphilly - CF83

Enquiry from: Barbara C

Start Date: Immediate

Are you the home owner of that property? - Yes. How many windows are you considering replacing? - 12. What material do you require, UPVC? - UPVC. What colour do you want them to be? - White. Do you re...

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29 Nov

Windows | uPVC

Caerphilly - CF83

Enquiry from: Beth J

Start Date: Immediate

are you the property owner: owner of the property what level of service do you require: supply and installation of full unit property type: semi detached how many windows do you need: 4+ windows do y...

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18 Nov

Windows | uPVC

Caerphilly - CF83

Enquiry from: Michael H

Start Date: Immediate

Are you the home owner of that property? yes 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 doors ...

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14 Nov

Windows | uPVC

Caerphilly - CF83

Enquiry from: John P

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 Oct

Windows | uPVC

Caerphilly - CF83

Enquiry from: Sam B

Start Date: Immediate

Are you the home owner of that property? yes How many windows are you considering replacing? 2 What material do you require, UPVC? upvc What colour do you want them to be? white Do you require doors I...

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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 Caerphilly is:

£2,082

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

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Window Installer FAQs

Can the glass in a double glazed window be replaced?
Yes, the glass in a double glazed window can be replaced. The glass in a window, or sealed unit to use its proper name, is not permanently attached to your window frames so if it gets damaged but your frames are still intact, there’s no need to replace the whole window. The glass in your double glazed window might need to be replaced due to:
  • Impact from a stone or other object smashing the glass in a ‘bullseye’ effect
  • The result of a break-in
  • Extreme weather or changes in pressure causing a crack
  • The sealed unit being ‘blown’, meaning that it’s no longer energy efficient due to air leaking out
A lot of window installers will replace the glass in your double glazing for you, but you might need to get quotes from specialist glaziers too. Glaziers deal purely with the glass in windows rather than installing entire frames. It won’t take a professional very long to replace the glass in your window. They will remove the beading from around the window with a pallet knife or chisel, leaving the top one until last to keep the sealed unit stable. Then, they simply lift out the glass carefully and will discuss with you whether the removal of the old sealed unit is included in their quote. Next, they will brush away any dust and debris that’s made its way into the frame and place spacers at the bottom. They will then lift the new glass into the frame, making sure it’s completely square. When they’re happy, they’ll remove the spacers and replace the beading back in reverse order. You’ll notice the replacement glass in your new window straight away as draughts should be eliminated and you’ll be able to see clearly again!
Do I need toughened glass in my windows?

Whether you need toughened glass in your windows depends on where the windows are in your home or business. Toughened glass is sometimes referred to as tempered or safety glass, and it just means it’s stronger than the standard glass that’s usually offered with double glazed windows. So how do you know if you need it?

Toughened glass is useful in areas of your home where you might come into contact with the windows if you were to trip and fall. If you put your hands out to steady yourself on standard glass the chances are it would break into large sharp pieces with jagged edges. Of course, this means that you could seriously cut yourself if this were to happen. With toughened glass, the structure of the glass is changed so that if it breaks it shatters into lots of tiny pieces, minimising the risk to you if you were to fall on it.

You might want to use toughened glass in patio doors, low windows or frames next to doors. It just means that you will be safer if the unlikely happens and you or a family member falls through the glass. There are certain requirements through Building Regulations with windows at a certain level, but any reputable window installer should be able to go through these with you if you need to replace your windows with toughened glass. The regulations will only apply to new windows – there's no need to switch your windows to toughened glass early, but when you do come to replace them you’ll need to make sure they meet the standard.

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.

What is the Window Energy Rating (WER)?

The energy efficiency of windows is measured using ratings, varying from A, the most efficient, to G, the least efficient. This scheme is run by the British Fenestration Council (BFRC). To comply with Building Regulations you’ll need windows of energy efficiency at least level C.

Should I get all my windows replaced at once?

You don’t have to, especially if you’re on a budget. If you’re only replacing some, it’s a good idea to get all the windows on one side of your property replaced at the same time, so they all look the same. Be aware, obviously, huge savings could be had by having a number of windows replaced at the same time.

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.

Where can I get one double glazed window?

Most window installers will be able to provide you with one double glazed window and fit it for you. If you’re replacing one double glazed window in your home, ask them to try and source the same windows that you already have or find one that’s very similar. Externally, you probably won’t be able to notice the difference, but if your existing windows are very old there may be some exterior discolouration and the locks and handles might look slightly different.

If you want one double glazed window so you can fit it yourself, there are lots of online companies that can supply you with one window. However, window fitting is a skilled trade and you might want to consider whether you have the right tools and experience to fit it yourself. Of course, you’ll save money on installation costs, but if something goes wrong, you might end up shelling out to get it fixed anyway.

The other thing to consider is that any replacement windows need to be certified that they meet Building Regulations. If you fit the double glazed window yourself, you’ll need to apply to your local council building control officer to get a certificate that confirms that you fitted the window within the regulations. You’ll have to pay a fee for this, and it will be even more expensive if Building Control say that the window hasn’t been fitted within the regulations and you have to start again.

The alternative is to ask a reputable window installer that is registered with a self-certification scheme, like FENSA, to install the window. That means that they can self-certify that the window meets building regulations once they’ve finished the installation.

What is the Window Energy Rating (WER)?

The energy efficiency of windows is measured using ratings, varying from A, the most efficient, to G, the least efficient. This scheme is run by the British Fenestration Council (BFRC). To comply with Building Regulations you’ll need windows of energy efficiency at least level C.

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