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Verified Pro

Alexander Constructors

0 review(s)
Offers services in PENARTH
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 PENARTH
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 ...

B W M

3 review(s)
Offers services in PENARTH
BWM are a family run business based in Wales that manufacture UPVC and Aluminium windows, doors and bi-folds. As well as i...

Recent Window Installer Enquiries

24 May

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Marshall A

Start Date: Immediate

Customer living in Penarth, Dinas Powys area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via Homeowner needs advice on options 2+ windows Supply and...

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23 Nov

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Vera G

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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27 Aug

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Sheila J

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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23 Jun

Windows | uPVC | Repair

Penarth, Dinas Powys - CF64

Enquiry from: Deborah R

Start Date: Immediate

I am looking for someone to repair a blown window in property I let out in Chamberlain Row

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11 May

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Ken I

Start Date: Immediate

are you the property owner: tenant (with permission) what level of service do you require: supply and installation of full unit how many windows do you need: 4+ windows do you require doors: 375 i am...

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30 Mar

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Richard C

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 Penarth, Dinas Powys area 2+ windows Supply and instal...

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02 Feb

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Allison S

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.

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19 Jan

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: G

Start Date: Immediate

What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - 1. What material do you require, UPVC? - UPVC. What colour do you want them to be? - WH...

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15 Jan

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: G

Start Date: Immediate

What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - 1. What material do you require, UPVC? - UPVC. What colour do you want them to be? - WH...

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03 Jan

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Rob B

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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12 Dec

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Dona J

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 door...

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25 Nov

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Kate 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 r...

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29 May

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Lewis S

Start Date: Immediate

I currently have a single glazed window in a wood frame Looking for double glazed replacement which either incorporates original patterned glass or offers a replica. Length: 51 Inches Width: 21 Inc...

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15 Apr

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Monika S

Start Date: Immediate

homeowner 2+ windows & Doors upvc supplied and fitted please call to appoint

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15 Apr

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Monika S

Start Date: Immediate

homeowner 2+ windows & Doors upvc supplied and fitted please call to appoint

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15 Apr

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Monika S

Start Date: Immediate

homeowner 2+ windows & Doors upvc supplied and fitted please call to appoint

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04 Apr

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Nathan S

Start Date: Immediate

Replacement of the upvc double glazing front downstairs window. (Floor to ce*** type)

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28 Mar

Windows | Glazing

Penarth, Dinas Powys - CF64

Enquiry from: Kevin P

Start Date: Immediate

replacement glass in ground floor living room window and two first floor windows. are you the property owner: owner of the property property type: semi detached are you looking for glaziers: yes how m...

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28 Sep

Windows | uPVC

Penarth, Dinas Powys - CF64

Enquiry from: Mel M

Start Date: Immediate

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

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25 Jul

Windows | Glazing

Penarth, Dinas Powys - CF64

Enquiry from: Anne P

Start Date: Immediate

New glazing to window pane. Large pane. And interested in secondary glazing

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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 Penarth is:

£2,082

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

Related Window Installer searches in Penarth

Window Installer FAQs

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.

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.

Are A-rated windows worthwhile?

On the grand scale of things there isn’t a huge difference between B-rated windows and A-rated windows. Consumer watchdog Which? have calculated an extra 6.5% would be saved on energy bills with A rather than B rated panes. Be aware that A rated windows are slightly more expensive, however.

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.

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.

What happens if I have problems with my new windows?

Ultimately the double glazing company you use is responsible for the quality of work and to ensure your windows are of an excellent standard. This is why it’s important to get a warranty and use a Fensa registered installer. If problems emerge within a couple of years then it’s likely the installation was of a poor standard.Contact the double glazing company and have the issue repaired or new windows replaced. This doesn’t matter if you received a discount of free windows as part of the deal. As long as you entered into a contract the company is obliged to restore the windows.

What happens if I have problems with my new windows?

Ultimately the double glazing company you use is responsible for the quality of work and to ensure your windows are of an excellent standard. This is why it’s important to get a warranty and use a Fensa registered installer. If problems emerge within a couple of years then it’s likely the installation was of a poor standard.Contact the double glazing company and have the issue repaired or new windows replaced. This doesn’t matter if you received a discount of free windows as part of the deal. As long as you entered into a contract the company is obliged to restore the windows.

how does double glazing work?

One of the essential factors that makes a home truly a home is the convenience and comfort it provides us. As a result, we usually have a long to do list comprising things that come together to make sure our home is comfortable with ambient temperature at the very top of the scale of preference. After all, no matter how greatly designed your furniture and home decor is, it probably would amount for nothing if the temperature is either too hot or too cold. Some of the most common ways we incorporate to make the temperature a lot more conducive and warm during the winter months is by installing air conditioning system or through top notch insulation materials, but the fact still remains that a lot of heat would escape through the doors and windows. And that’s exactly the use of double glazing. So how exactly does double glazing work?

Double glazing basically works by preventing the escape of air and trapping it between two panes of glass. It’s the trapped air which serves as an insulation barrier which delivers 3 major functions. First and foremost, it stops the escape of heat through the window as the barrier created insulates the room from varying air temperatures at both sides of the glazing unit. The second major function is the double glazing works to keep down noise pollution coming from outside. While the third major function of double glazing I the fact that it helps minimize condensation which usually occurs on the single glazed windows’ inside as the cold outside air works to cool the warm air inside the house. When you install a double glazing window, the insulation barrier generated will work to stop the air temperature transmission which ultimately helps prevent the occurrence of condensation.

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