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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...
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All Purpose Glazing

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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...
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Construction or Refurbishment of existing Houses  • Attic Conversions  • Sun Rooms & Conserv...

Recent Window Installer Enquiries

30 Apr

Windows | uPVC

Londonderry - BT47

Enquiry from: Ida M

Start Date: Immediate

Call any time. 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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10 Apr

Windows | uPVC

Londonderry - BT48

Enquiry from: Anna D

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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04 Apr

Windows | uPVC

Londonderry - BT48

Enquiry from: Hugh B

Start Date: Immediate

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

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11 Mar

Windows | uPVC

Londonderry - BT48

Enquiry from: Frances 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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04 Mar

Windows | uPVC

Londonderry - BT47

Enquiry from: Len C

Start Date: Immediate

7 windows 3 windows downstairs 3 bedrooms 1 bathroom are you the property owner: owner of the property what level of service do you require: supply and installation of full unit how many windows do yo...

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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.

Post a similar request >

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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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

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.

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.

Will double glazing increase my property’s value?

These days, buyers expect homes to have double glazing. People recognise the benefits of installing double glazing, so if you don’t have it installed you should consider it. You’ll increase your property’s value and give it a better chance of selling faster, since single glazed properties are also more likely to have problems with damp and mould which could put buyers off.

how to repair or replace a double glazed unit?

Are you about to purchase a double glazed unit and wondering how to go about the replacement project? If yes, then you’re at the right place. Firstly, it’s advisable to hire the services of a reliable professional who can guarantee the best results for help especially if you lack proper training and experience in the field. However, we’ve put together this step by step guide to provide you with a detailed information about the double glazed unit replacement process. Let’s get started!

The tools and materials you require for the project includes tape measure, hammers, nail punch, scraper, spacing blocks, non-hardening butyl putty, high-security glazing tape rolls and beading tacks.

• Work out the glass size required. Simply use the tape measure to measure from frame edge to frame edge while also taking note of the thickness.

• When about to order, inform the glass merchant that the measurement provided are frame-tight. This will make him reduce the dimension a little bit, mostly by 5mm for clearance.

• Remove the beading and ensure to support the glass while doing so. If the glass units are fitted in wooden windows, you may need to cut the putty-based compound they’re normally sealed with to remove the glass.

• Lay out the beading in the window’s shape to make for easier refitting later on.

• If you’re working on wooden frames, wipe out all traces of excess installation compound using a scraper and clean the rebate with a soft brush.

• Trial fit the double glazed windows to ensure they’d slide into the frame without being forced.

• Plastic frame windows are usually in between a pair of gaskets, you should replace this with a hight security glazing tape. While for a wooden frame, simply apply strips of flexible non-setting butyl putty or high-security glazing tape on either sides of the glass.

• Install and centralize the glass in the frame.

• Press the nail wooden beading or plastic beading back into place.

how much is a porch?

If you’ve decided to construct a porch to your property and now looking to figure out the cost required to complete the project, then you’re at the right place!

There are many factors that comes to play when determining the price of building a porch. These factors includes the size of the porch, the number of windows, the style of the roof as well as the type of the porch selected. Now let’s take a look at these factors one after the other.

• The Porch’s Size

As you would have correctly imagined, a large porch will definitely cost more money than a smaller one. A rough estimate of a porch’s cost per square metre is approximately £1,400.

• The Number Of Windows

Just like in the scenario above, the more the number of windows to be incorporated, the more money you’ll have to pay to complete your porch. A porch window will generally cost you within a range of £300 to £1,000

• The Style Of The Roof

There are two popular styles of porch’s roof which includes a tiled rood and a rubber flat roof. Generally, roof tiles are costlier than a rubber flat roof. A tiled roof would cost you between £0.80 to £1.80 per roof tile, while a rubber roofing will cost your between £70 to £90 per metre squared.

• Type Of The Porch

Another huge determinant of a porch’s price is type of material incorporated. For instance, if your preferred type is a lean-to, the price of a uPVC would be between £2,300 to £2,700. Meanwhile, a flat gable roof porch should cost within a range of £3,300 to £3,800.

Kindly note that the costs quoted in this article are only rough estimates, for a more accurate estimate you can contact a porch building professional within your local area.

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.

Can the glass in a double glazed window be replaced?
Yes, the glass in a double glazed window can be replaced. The glass in a window, or sealed unit to use its proper name, is not permanently attached to your window frames so if it gets damaged but your frames are still intact, there’s no need to replace the whole window. The glass in your double glazed window might need to be replaced due to:
  • Impact from a stone or other object smashing the glass in a ‘bullseye’ effect
  • The result of a break-in
  • Extreme weather or changes in pressure causing a crack
  • The sealed unit being ‘blown’, meaning that it’s no longer energy efficient due to air leaking out
A lot of window installers will replace the glass in your double glazing for you, but you might need to get quotes from specialist glaziers too. Glaziers deal purely with the glass in windows rather than installing entire frames. It won’t take a professional very long to replace the glass in your window. They will remove the beading from around the window with a pallet knife or chisel, leaving the top one until last to keep the sealed unit stable. Then, they simply lift out the glass carefully and will discuss with you whether the removal of the old sealed unit is included in their quote. Next, they will brush away any dust and debris that’s made its way into the frame and place spacers at the bottom. They will then lift the new glass into the frame, making sure it’s completely square. When they’re happy, they’ll remove the spacers and replace the beading back in reverse order. You’ll notice the replacement glass in your new window straight away as draughts should be eliminated and you’ll be able to see clearly again!

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