The typical cost of double glazing is approximately £400-600 per window, so youâre looking at approximately £2,000 to install 4 double glazed windows in a flat, and up to and exceeding £5,000 for replacing all the windows in a standard-sized home.
| Avg. price low | Avg. price low |
|---|---|
| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
£9000
£6750
£4500
£2250
£0
| Labour cost | £1,400 | |
| Material cost | £500 | |
| Waste removal | £100 |
Requests for quotations in Northern Ireland in June 2026
Requests for Secondary glazing quotations in Northern Ireland in June 2026. 0% change from May 2026.
Requests for Secondary glazing quotations in United Kingdom in June 2026. 0% change from May 2026.
Bell Windows was brought together in 2008 by Gordon Bell. Even though it is a relatively young company, Gordon himself has worked with uPVC products for over 30 years and also in the Building trade for a further 12 years before that
Excellent, will go with Bell, just awaiting budget release.
We are a family run company run on family values we provide a personal professional service offering great products at factory prices
So far so good , Non of the sales pitch just exactly what we wanted to see and hear, sample shown and again non of the s...
Pennine Home Improvements Pennine Home Improvements designs and installs conservatories, UPVC Windows, composite and UPVC doors & conservatory roof replacement products. Pennine works with customers to help them improve their homes and their li...
Still awaiting a home visit.
Did not accept their visit request as very happy with Safe style.
Warmseal install high-quality double glazing windows, doors, conservatories & orangeries in Newcastle & North East. Browse our products online now.
Did not accept their visit request as very happy with Safe style.
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Ballymena - BT42
Enquiry from: Lawrence H
Start Date: Immediate
2 doors kitchen window i small 1 medium 1 large porch windows
Bishop Auckland - DL13
Enquiry from: Carol P
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.
Carrickfergus - BT38
Enquiry from: Cameron M
Start Date: Immediate
6 windows supplied and fitted in the colour anthracite grey on the outside and inside of the frames.
Darlington - DL1
Enquiry from: Tom I
Start Date: Immediate
call anytime number of windows: 4 number of doors: 1 quote requested on windows and doors, in pvcu, to be supplied and fitted. are you the property owner: owner of the property how many windo...
Craigavon - BT63
Enquiry from: Evelyn B
Start Date: Immediate
Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.
Ballyclare - BT39
Enquiry from: Eileen L
Start Date: Immediate
customer is looking to replace their windows. they are still considering options so please call to discuss what would be best for their home. homeowner lives in ballyclare area 2+ windows supply and i...
Belfast - BT14
Enquiry from: Geraldine M
Start Date: Immediate
Customer made an online enquiry for new double glazing. Homeowner confirmed interest via Considering a range of options Homeowner lives in Belfast area 2+ windows Supply and install Please call to ar...
Craigavon - BT62
Enquiry from: E
Start Date: Immediate
Customer made an online enquiry for replacement windows via one of our websites. Confirmed via . 2+ windows Supply and install Please call to arrange an appointment to quote.
Londonderry - BT48
Enquiry from: Denise F
Start Date: Immediate
Customer made an online enquiry for quotes for double glazing replacement via one of our websites. Customer lives in Londonderry area and is considering a range of options for their home. 2+ windows S...
Belfast - BT12
Enquiry from: Mary M
Start Date: Immediate
Customer is looking to have windows installed. They are unsure what options to go for so would like to discuss directly multiple windows to be Supplied and installed Please call to quote.
Bangor (outside Ring Road) - BT19
Enquiry from: Kenneth D
Start Date: Immediate
all existing windows replaced in anthracite, what level of service do you require: supply of full unit only property type: detached how many windows do you need: 4+ windows do you require doors: 375, ...
Bishop Auckland - DL14
Enquiry from: Abdullah A
Start Date: Immediate
Customer is looking to have windows installed. They are unsure what options to go for so would like to discuss directly multiple windows to be Supplied and installed Please call to quote.
Consett, Durham, Stanley - DH8
Enquiry from: Fraser N
Start Date: Immediate
Customer in Consett, Durham, Stanley area made an enquiry for double glazing online. 2+ windows Supply and install Please call to arrange an appointment to discuss options
Craigavon (East) - BT65
Enquiry from: Trudy F
Start Date: Immediate
3 windows ,one front door and 2 glass panels
Durham - DH1
Enquiry from: Maggie I
Start Date: Immediate
Customer in Durham area made an enquiry for double glazing online. 2+ windows Supply and install Please call to arrange an appointment to discuss options
Ballymena - BT42
Enquiry from: Denise M
Start Date: Immediate
customer in the ballymena area made an enquiry a couple of projects including upvc double glazing.call anytime and arrange an appointment to discuss. below is some details about this project: are you ...
Banbridge - BT32
Enquiry from: Lisa M
Start Date: Immediate
customer has a windows project they are looking to have done, specially they want quotes for upvc double glazing. they are unsure of options so would like to discuss with a window installer.confirmed ...
Omagh - BT79
Enquiry from: Patricia W
Start Date: Immediate
i need 3 replacement windows are you the property owner: owner of the property what level of service do you require: supply and installation of full unit property type: semi detached how many windows ...
Belfast - BT6
Enquiry from: Gerard G
Start Date: Immediate
Call anytime. Number of windows: 8 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.
Armagh - BT60
Enquiry from: Oliver R
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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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.
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.
If a window is double glazed, it has two panes of glass that have a space between them containing argon gas. The gas works as an insulator, keeping heat inside the house as well as reducing noise. It also strengthens the window.
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.
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