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Alexander Constructors

0 review(s)
Offers services in TREHARRIS
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 TREHARRIS
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 TREHARRIS
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

14 Oct

uPVC Double Glazing

Treorchy - CF42

Enquiry from: Christine R

Start Date: Immediate

Considering a range of options 2+ windows Supply and install

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23 Sep

uPVC Double Glazing

New Tredegar - NP24

Enquiry from: Sylvia D

Start Date: Immediate

Considering a range of options 2+ windows Supply and install

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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 Aug

Window Repair

Caerphilly - CF83

Enquiry from: Keith J

Start Date: Immediate

Wooden window repair Lead Wooden window repair Lead Wooden window repair Lead

Double glazed window needs seal replaced 12 ft x 8ft

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25 Jul

Replacement Glass Only

Caerphilly - CF83

Enquiry from: Sian M

Start Date: Immediate

I have staybrite windows, but my seals on the inside have gone yellow, can I buy them through you please

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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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30 Jun

uPVC Double Glazing

Newport - NP10

Enquiry from: Emelia D

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27 Jun

Window Repair

Treorchy - CF42

Enquiry from: Gareth D

Start Date: Immediate

Wooden window repair Lead

Replacing the four blown sealed units or supplying and fitting one completely new window. the measurements for the blown frosted units are: 2 × 1305mm (h) × 835mm (w) 2 × 455mm (h) × 755mm (w) the

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02 Jun

uPVC Double Glazing

Newport - NP11

Enquiry from: Rena M

Start Date: Immediate

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02 Jun

uPVC Double Glazing

Bridgend - CF32

Enquiry from: Laura S

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01 Jun

uPVC Double Glazing

Cardiff - CF5

Enquiry from: Janice A

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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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22 Apr

uPVC Double Glazing

Ebbw Vale - NP23

Enquiry from: Rhiannan H

Start Date: Immediate

Multiple windows Supply and install

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21 Apr

uPVC Double Glazing

Treharris - CF46

Enquiry from: Nigel R

Start Date: Immediate

2+ windows Supply and install

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15 Jan

uPVC Double Glazing

Treharris - CF46

Enquiry from: Michael C

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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12 Dec

uPVC Double Glazing

Treharris - CF46

Enquiry from: Ross 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 doo

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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 Treharris is:

£2,082

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

Related Window Installer searches in Treharris

Window Installer FAQs

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.

What to put over a broken window?
A broken window is a nuisance and an unwanted expense, and it can often happen at the worst times, like overnight when installers aren’t available or when the weather is very bad. So you might need to put something over your broken window as a temporary measure before someone can come and replace it – but what should you use? If you’ve got a small crack, you could try using some masking tape. Cover the entire crack with the tape making sure that there is extra tape at each end of the crack. This will help to prevent the crack from growing further. However, this isn’t going to work on large impact cracks or shattered windows. For a shattered window, you need to make sure you remove all the remaining glass as the shards could easily cut someone. To make a broken window like this safe, you’ll need:
  • Thick gloves
  • A hammer
  • A broom
  • A vacuum cleaner
  • Thick-soled shoes
  • Safety goggles
  1. Put your gloves on and use the hammer to remove the rest of the glass. Make sure you hit the glass away from you.
  2. Using the broom, sweep away any loose glass from the area, making sure you do both inside and outside.
  3. Use your vacuum cleaner to remove any small pieces of glass that you might not have been able to see.
Once you’ve cleared up the mess, you’ll want to cover your broken window with plastic and tape. It’s only a temporary measure so make sure you get in touch with a professional as soon as possible. Cut some heavy-duty plastic to fit the entire window. Using duct tape, secure the plastic over the window and make sure all the sides are sealed properly. It’s best to ensure that the plastic stays taught over the frame so it doesn’t get caught by the wind. Make sure you get in touch with a glazier or window installer as soon as you can – you'll notice a draught very quickly and someone could easily come and rip the plastic off. If you’re very worried about this you might want to add a chipboard over the top to make it more secure.

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 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.

Do I need to stay at home while my windows are being replaced?

Most installers will not need you to be at home while they are fitting your windows. It is a good idea to be present though, just in case they have any questions for you and perhaps for your own peace of mind. If you cannot be there, you will need to arrange access to the property and/or agree securing the property at the end of the day.

how to build a porch?

A front porch is a glorious addition that would be a blessing to have in any home. It gives you a good floor space to enjoy your neighbourhood as well as your surroundings in the cool atmosphere of the outside living space. The question however is, how do you build a porch? Constructing the structure can be a very challenging task but with proper guidance and lots of practice, you can also be a skilled porch builder. To protect your investment, it’s advisable to hire the services of a professional for help with your porch especially if you lack proper training and experience. This way, you’ll get to save time and money. This guide is prepared to give you some insight into the porch building process.

lAssess Your Location

• Consider the location before proceeding with the project. It’s essential to select a location that’ll reduce the sunlight coming in.

lPlan The Materials Required For Your Porch

• You’ll have to decide the type of porch you’ll be going for. For example, your porch can be built out of wood, composite decking or if it’s going to utilize some stone flooring, brick or even tile.

lBuild Your Porch Foundation

• Dig the foundations deep to ensure stability while also putting in mind any pipework or cabling

• Fit a damp proof course

• Add the subfloor - this can be concrete or timber

lStart To Lay The Brick And Floor

• Lay the bricks evenly up to the DPC level

• Lay the floor

• Add the flooring protection

• Once done, you can lay the bricks to the window level

• You can fit in a window sill if required before proceeding the brick and block work until it reaches the roof timber’s height

• Fit the linter when you get to the top of where the window will reach.

lConstruct The Roof

• Build a timber framework

• Fit a breathable roof membrane

• Install the roof battens and lay the roof tiles.

• Add gutters

How much is a single window?
Sometimes accidents happen, and that leads to you needing to replace just a single window. Luckily, most window fitters are happy to replace just one window if you need to. But how much a single window costs will depend on a few factors. Firstly, do you need the entire window, including the frame, replaced, or just the sealed unit? If the frame is still in good condition, glaziers and some window installers can replace the sealed unit and this will set you back around £250. If your window frame is damaged, don’t try to get away with not replacing it. Having a broken window frame can let heat escape your home, increasing your energy bills, and you’re likely to hear more traffic noise. Plus, if the frame is broken you might have trouble closing the window properly, stopping you from keeping your home secure. So how much is a single window if you need the whole thing replaced? You should expect it to cost between £400-£550, but it could cost more or less than this depending on your location, the size of the window and how tricky it is to replace. There are other factors that will impact the cost of replacing a single window. Do you want the window to have plain, leaded or Georgian bar glass? Maybe it will be a casement window, or a bay, bow or sash? The cost will increase if you want more than one opener if it’s a large window, and if you want it to have locks. Also, the standard white uPVC frame colour will probably be included in the price, but if you want a woodgrain look or a different colour uPVC this will cost more.

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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