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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 LONDONDERRY
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

26 Feb

Windows | uPVC

Londonderry - BT47

Enquiry from: Felix C

Start Date: Immediate

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

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26 Feb

Windows | uPVC

Londonderry - BT48

Enquiry from: Gerry C

Start Date: Immediate

What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - 2. What material do you require, UPVC? - upvc. What colour do you want them to be? - wh...

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19 Feb

Windows | uPVC

Londonderry - BT47

Enquiry from: Dereck S

Start Date: Immediate

Replace 7 double glaze windows

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11 Feb

Windows | uPVC

Londonderry - BT48

Enquiry from: Annie D

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

Londonderry - BT48

Enquiry from: Edwina R

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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03 Feb

Windows | uPVC

Londonderry - BT48

Enquiry from: Despina S

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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15 Jan

Windows | uPVC

Londonderry - BT48

Enquiry from: Philip M

Start Date: Immediate

what best describes your living situation? - homeowner - sole. how many windows are you considering replacing? - 6. what material do you require, upvc? - upvc. what colour do you want them to be? - wh...

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08 Jan

Windows | uPVC

Londonderry - BT47

Enquiry from: David C

Start Date: Immediate

What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - 8. What material do you require, UPVC? - upvc. What colour do you want them to be? - wh...

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06 Dec

Windows | uPVC

Londonderry - BT47

Enquiry from: Horace W

Start Date: Immediate

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

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03 Dec

Windows | uPVC

Londonderry - BT47

Enquiry from: Ida M

Start Date: Immediate

Call anytime. Number of windows: 7 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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26 Nov

Windows | uPVC

Londonderry - BT48

Enquiry from: Tara C

Start Date: Immediate

Call back anytime. Number of windows: 11 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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13 Nov

Windows | uPVC

Londonderry - BT47

Enquiry from: Patricia M

Start Date: Immediate

Call anytime. Number of windows: 3 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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15 Oct

Windows | uPVC

Londonderry - BT47

Enquiry from: Marcella C

Start Date: Immediate

Call anytime. Number of windows: 5 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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15 Oct

Windows | uPVC

Londonderry - BT48

Enquiry from: Hugh B

Start Date: Immediate

Call anytime. Number of windows: 7 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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04 Sep

Windows | uPVC

Londonderry - BT48

Enquiry from: Hannah M

Start Date: Immediate

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

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28 Aug

Windows | uPVC

Londonderry - BT48

Enquiry from: Tracy H

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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27 Aug

Windows | uPVC

Londonderry - BT48

Enquiry from: B

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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07 Aug

Windows | uPVC

Londonderry - BT47

Enquiry from: Cynthia R

Start Date: Immediate

Are you the home owner of that property? yes How many windows are you considering replacing? 4 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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29 Jul

Windows | uPVC

Londonderry - BT47

Enquiry from: Joanne F

Start Date: Immediate

Are you the home owner of that property? Yes How many windows are you considering replacing? 8/10 What material do you require, UPVC? UPVC What colour do you want them to be? White Do you require door...

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01 Jul

Windows | uPVC

Londonderry - BT48

Enquiry from: Isobel M

Start Date: Immediate

Are you the home owner of that property? joint How many windows are you considering replacing? 13 What material do you require, UPVC? upvc What colour do you want them to be? WHITE 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 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 Londonderry is:

£2,082

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

Related Window Installer searches in Londonderry

Window Installer FAQs

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.

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.

How long do double glazed sealed units last?
When it comes to how long double glazed sealed units (the glass inside the window) last, a lot of it is down to the quality of the glass and the environment that your windows sit in. It’s not uncommon for your window frames themselves (especially if they are uPVC) to last longer than your sealed units. Sealed units are called that because they’re two panes of glass sealed together with an air gap in between. They use what’s called a ‘perimeter seal’ to protect the air gap between the panes, and is usually made of butyl mastic which retains a desiccant within a perforated metallic spacer bar. The desiccant’s job is to absorb any moisture which finds its way into the air gap to stop your window from misting up on the inside. When a sealed unit fails, or is ‘blown’, it’s usually because moisture builds up around the seal and causes it to fail. Sealed units won’t last forever, so you will eventually end up with condensation inside the panes of your double glazing, but in an ideal environment your double glazed sealed units could last up to 30 years, with some manufacturers claiming as long as 40 years. But they do require a bit of maintenance and the position of your windows will also make a difference as to how long they last. There are a few things that determine how long a sealed unit will last:
  • Climate - If your window faces south, it will be subject to direct sunlight for a lot of the day. This tends to cause the sealed unit to fail more quickly – a south-facing window may last between 10-25 years. This is because the spacer bars will twist as the temperature rises and causes the adhesive holding them together to eventually fail.
  • Moisture - Windows in kitchens and bathrooms tend to fail more quickly because they come into contact with moisture more often. For example, if water gets on your windowsill when you shower, the seal around the glass will come loose more quickly if it’s constantly wet.
When you replace the sealed units in your windows or get completely new double glazing, make sure you choose an installer that uses quality products and will take all the steps to ensure that your sealed units are kept away from moisture as much as possible.
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.

Why are double glazed windows better than single glazed?

Double glazed windows are better than single glazed generally because they are more energy efficient. The clue’s in the name – double glazed windows have two panes of glass while single glazed windows only have one. In double glazed windows, there is a space between the two glass panes. This space is filled with inert gas or a tight vacuum, which helps to provide an extra level of insulation. That means that heat won’t escape your home easily, nor will it creep in, so you can keep your home at a more comfortable temperature.

The extra pane of glass also helps to increase your home’s security. Single glazing is pretty easy to smash through, whereas it will take much more effort to smash double glazing and will create more noise, so burglars might be put off.

Another reason why double glazed windows are better than single glazed ones is that they help to reduce noise. Of course, if you live by a busy road you’ll still hear some traffic noise, but it can be significantly reduced buy double glazing. In the same way that the inert gas in the middle of the two panes keeps heat in and the cold out, it also helps keep noise out.

With double glazing, you’ll also notice much less condensation. With single glazing, it’s common to see condensation on the inside of the windows, especially when the heating is on. This is because the outside of the window is cold, but the inside is warm. With double glazing, the insulation between the two panes stops there being such a difference in temperature between the inside and outside of the window.

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.

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.

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.

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