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Alexander Constructors

0 review(s)
Offers services in CARDIFF
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 CARDIFF
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 CARDIFF
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

19 Sep

Window Repair

Cardiff - CF23

Enquiry from: Frank W

Start Date: Immediate

My windows and doors and the back door handle needs replacing

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08 Aug

uPVC Double Glazing

Cardiff - CF23

Enquiry from: Firezer T

Start Date: Immediate

2+ windows Supply and install

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01 Jul

uPVC Double Glazing

Cardiff - CF5

Enquiry from: Donna W

Start Date: Immediate

2+ windows supply and install

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01 Jun

uPVC Double Glazing

Cardiff - CF5

Enquiry from: Janice A

Start Date: Immediate

2+ windows Supply and install

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26 Apr

uPVC Double Glazing

Cardiff - CF11

Enquiry from: Jay C

Start Date: Immediate

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23 Apr

uPVC Double Glazing

Cardiff - CF10

Enquiry from: Galal S

Start Date: Immediate

Looking at various options 2+ windows Supply and install

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13 Apr

uPVC Double Glazing

Cardiff - CF24

Enquiry from: Susan P

Start Date: Immediate

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12 Apr

Replacement Glass Only

Cardiff - CF24

Enquiry from: Dewi E

Start Date: Immediate

Hi - have a broken inner glass on a velux window, city rd.  can you kindly give me a quote to repair it with a high quality warrantied glass pls.  the code is ggl m04.  if easier i can maybe bring

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06 Apr

uPVC Double Glazing

Cardiff - CF5

Enquiry from: Georgia H

Start Date: Immediate

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25 Mar

Window Repair

Cardiff - CF3

Enquiry from: Diane D

Start Date: Immediate

Velux window not shutting

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08 Dec

uPVC Double Glazing

Cardiff - CF24

Enquiry from: Jacqueline S

Start Date: Immediate

2+ windows Supply and install

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02 Dec

uPVC Double Glazing

Cardiff - CF24

Enquiry from: Gordon T

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 doors

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30 Nov

uPVC Double Glazing

Cardiff - CF14

Enquiry from: Sunil P

Start Date: Less than one month

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25 Nov

uPVC Double Glazing

Cardiff - CF11

Enquiry from: Zaheer A

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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24 Nov

uPVC Double Glazing

Cardiff - CF3

Enquiry from: Okparavero E

Start Date: Immediate

2+ windows Supply and install

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06 Nov

Replacement Glass Only

Cardiff - CF3

Enquiry from: Helen B

Start Date: Immediate

Smashed glass pane in roof of lean to Measurements roughly 76 inches long and 23 inches wide

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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 Cardiff is:

£2,082

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

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Window Installer FAQs

is a porch made from uPVC?

The simple answer to this question is... they can be! Although there are many types of porch designs that are available in the market, the uPVC porch happens to be one of the most loved and cost effective. Most home and property owners prefer the installation of a uPVC porch for a number of reasons. These includes:

• Value for money

It’s no coincidence the uPVC is widely accepted across the building industry with a plethora of uses. Not only is it relatively inexpensive to manufacture, but even the recycled uPVC is now becoming more and more useful. UPVC’s main rivals are wood and aluminium, and both are way more expensive to incorporate for frame profiles. Therefore, making use of uPVC is going to make your initial costs relatively low.

• Life Span

Although the main rivals in both hardwood and aluminium can also boast a lengthy lifespan just as uPVC. However, considering the price that you can get a uPVC, the lifespan is just incredible as it can be measured in decades.

• Aesthetic Appeal

UPVC gives you a wide range of foil colours that’ll fit your home perfectly well while also enhancing it’s visual appeal. You can actually get a porch that looks exactly like it’s manufactured from timber frames. To achieve this, all you need to do would be to make use of a wood grain surface finish. This is also long lasting, strong and resistant to fade.

• Little Maintenance

This is a very common feature of uPVC that makes it even more advantageous when used in making a porch. Unlike timber or wood which swells due to absorption of water or shrinks, you’ll never need to worry about all these distortions and more with uPVC. No painting, no sanding and ultimately, low maintenance required.

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 to replace the glass in a uPVC window?
It’s not too difficult to replace the glass in a uPVC window, so if you’re a confident DIYer you could have a go at this yourself. We’ll go through the main steps on how to replace the sealed unit in a uPVC double glazed window:
  1. Using a rubber mallet and a strong pallet knife, remove the beading around the window. You might think they’re part of the frame, but they’re actually separate on the inside of the frame and can be taken out by using pallet knife to prize them out. Start with one of the longest beads first and leave the top bead until last.
  2. Give the glass a little tap to loosen it if it doesn’t come out straight away, then the whole unit should slide out easily. Just make sure it falls towards you and not back out onto the ground below!
  3. Clear any debris that has found its way into the frame with a brush. Add spacers at the bottom of the frame – these could be pieces of plastic.
  4. Get your new sealed unit (make sure you measure the glass before you buy one so you know which size to get) and carefully take it out of the packaging. Look for the British Standard mark – that shows you the bottom of the glass.
  5. Lift the glass into the frame, starting with the bottom first, and make sure that it fits square in the frame before taking the spacers out.
  6. Use a little washing up liquid to spread along the beads to make it easier when you slide them back into the frame. If they simply push and clip back in, you can use something like a block of wood to help you push them in correctly. Put them back in reverse order to how you took them out.
And there you go! If you’re feeling confident you can have a go at replacing the glass in your uPVC window yourself. But if you’ve got any worries, leave it to a window installer who will be able to do it in less than an hour.
How much could I save on my energy bills if I install double glazing?

As well as keeping your home warmer and reducing noise, you’ll notice a saving on your energy bills from installing double glazing. If you install A++ rated windows in your home after having single glazing, you could save up to £120 year on your energy bills. The Energy Saving Trust has more information.

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 much is it to repair the glass in a window?
Accidents happen, and sometimes windows get broken. And that will lead to you wanting to replace just the glass in your window, rather than the whole frame. Also, as windows get older they can mist up on the inside, which means that the unit has ‘blown’ - so you’ll also need to replace the glass. But how much is it to replace the glass in a window? Luckily, if the frame of your window is in good condition, there’s no need to replace it, and this will reduce the cost. For an installer to fit a new pane of glass in a single glazed window, the average cost is £100, while a replacement double glazed sealed unit will cost an average of £110. Of course, as this is an average, if your window is very large you may spend more, and if your window is very small the price may be less. That's why it’s important to get a range of quotes so you can compare costs and get the best price. If you’re good at DIY, you may feel confident enough to have a go at replacing the glass in your window yourself. In that case, the cost of sealed unit and any other materials you need will cost an average of £57. It’s a significant saving, and if you think you can do it, then give it a try. However, if you’re in any way unsure, it’s best to leave it to the professionals. A window installer will be able to replace the glass in your window in less than an hour. Even though it costs more for a professional to do it, if you get it wrong and have to start over it will cost you more in the long run.
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.

What if my home isn’t suitable for double glazing?

Some properties are unable to have double glazing, especially those in conservation areas or listed buildings. To counter this problem and still benefit from a warmer home and cheaper bills, secondary glazing is an option. Secondary glazing is a second pane fitted inside your original window. Secondary glazing will still save you around £105 yearly.

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