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Verified Pro
Precision Contracts is a family run business and have been the foremost contractors of home improvements, building and roo...
Verified Pro

All Purpose Glazing

0 review(s)
Offers services in COUNTY DOWN
Working with glass since 1983 All Purpose Glazing (APG) is a family run glass merchant and processing business that has co...
Verified Pro
Construction or Refurbishment of existing Houses  • Attic Conversions  • Sun Rooms & Conserv...

Recent Window Installer Enquiries

31 Mar

Windows | uPVC

Banbridge - BT32

Enquiry from: Norma B

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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29 Mar

Windows | uPVC

Ballynahinch - BT24

Enquiry from: Mark H

Start Date: Immediate

Call back anytime. Number of windows: 7 Quote requested on windows, in PVCu, to be supplied and fitted.

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20 Mar

Windows | uPVC

Newtownards - BT23

Enquiry from: Alberta M

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 Mar

Windows | uPVC

Downpatrick - BT30

Enquiry from: Patricia S

Start Date: Immediate

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

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14 Mar

Windows | uPVC

Newtownards - BT22

Enquiry from: Rose M

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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05 Mar

Windows | uPVC

Newry (South Armagh section) - BT35

Enquiry from: Martin M

Start Date: Immediate

customer in newry (south armagh section) areas is looking to do a couple of projects at the moment, and would like quotes for upvc double glazing.confirmed interest via sms and email at 05/03/2025 08:...

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04 Mar

Windows | uPVC

Newcastle - BT33

Enquiry from: Trevor G

Start Date: Immediate

Call anytime. Number of windows: 4 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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01 Mar

Windows | uPVC

Newtownards - BT23

Enquiry from: Lorraine A

Start Date: Immediate

call anytime number of windows: 10 number of doors: 2 quote requested on windows and doors, in pvcu, to be supplied and fitted. i am looking for quotes for 4+ windows are you the property o...

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27 Feb

Windows | uPVC

Newcastle - BT33

Enquiry from: Trevor G

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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25 Feb

Windows | uPVC

Newtownards - BT23

Enquiry from: Darren B

Start Date: Immediate

Call back anytime. Number of windows: 8 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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25 Feb

Windows | uPVC

Castlewellan - BT31

Enquiry from: Eamon M

Start Date: Immediate

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

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24 Feb

Windows | uPVC

Bangor (outside Ring Road) - BT19

Enquiry from: Jenny 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 Feb

Windows | uPVC

Newry (South Armagh section) - BT35

Enquiry from: George 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 do...

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24 Feb

Windows | uPVC

Waringsford - BT25

Enquiry from: Korin D

Start Date: Immediate

What best describes your living situation? - Homeowner - Joint. How many windows are you considering replacing? - 3. What material do you require, UPVC? - UPVC. What colour do you want them to be? - W...

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22 Feb

Windows | uPVC

Castlewellan - BT31

Enquiry from: Eamon M

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 requir...

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22 Feb

Windows | uPVC

Newtownards - BT23

Enquiry from: Darren B

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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19 Feb

Windows | uPVC

Newry (South Armagh section) - BT35

Enquiry from: Helen 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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11 Feb

Windows | uPVC

Newry (South Down section) - BT34

Enquiry from: Ashlene 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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11 Feb

Windows | uPVC

Donaghadee - BT21

Enquiry from: Eva 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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11 Feb

Windows | uPVC

Bangor (within Ring Road) - BT20

Enquiry from: Valerie M

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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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 County Down is:

£2,082

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

Related Window Installer searches in County Down

Window Installer FAQs

How to measure the glass for a window replacement?
If the glass in your window has been damaged, you might only need to replace that rather than your whole window frame. Common reasons for needing to replace the glass in your window include:
  • The glass has smashed from an impact such as a stone hitting it from a lawnmower
  • You have been broken into and suspects used the window to gain entry
  • The glass has blown (lost its airtightness) from constant water build-up around the seals, which is common in bathrooms
  • Extreme weather or pressure changes have caused a crack
If your frames are still intact and there’s nothing wrong with your window’s locks or trims, there’s no reason why you can’t just replace the sealed unit in your window. To help with the quotation process, a window installer may ask you to measure the glass for your window replacement. It’s pretty simple to just measure the sealed unit inside your window. There are just 3 steps you need to take:
  1. Including the beading (the plastic and rubber seals around the windows that can be removed), measure the width of the window frame.
  2. Do the same for the height of the window, making sure you include the beading.
  3. Then, take 10mm off each measurement, and you have the approximate size of your glass.
A reputable window installer will still make their own measurements before confirming the size of the glass in your window and going ahead and ordering the replacement. Make sure you get a range of quotes from local and national installers so you can compare the price and their quotation process.
How to fit aluminium double glazed window?

Whether you’re hiring a professional to replace your double glazing or are considering DIY, it’s a good idea to know how to fit a double glazed window.

You need to start by assembling your window. Fit any handles and cut the outer sill to size by measuring the outer wall depth. Then, screw the outer sill to the window frame and attach the frame fixers. Screw the ventilation grilles onto the inside of the frame and fix the vents on.

Next, you need put the window into place, using spacers to wedge it in. Use a spirit level to check it’s level horizontally and vertically, adding extra spacers if needed. Then, fix the frame into place at each fixing point using a drill, wall plugs and screws. Measure and cut the interior sill, and check that it’s level, adding spacers if needed. Then fix it using screws, masonry nails or adhesive.

Finally, fill in any wide gaps with foam filler and small gaps with sealant. You can get interior and exterior trims to cover these up, making your window look neat and professional.

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.

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.

How much is window repair?

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.

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.

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.

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.

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