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 |
£5100
£3825
£2550
£1275
£0
| Labour cost | £1,400 | |
| Material cost | £500 | |
| Waste removal | £100 |
Requests for quotations in County Antrim in May 2026
Requests for Secondary glazing quotations in County Antrim in May 2026. 0% change from April 2026.
Requests for Secondary glazing quotations in Northern Ireland in May 2026. 0% change from April 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.
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...
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.
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 ...
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.
Newtownabbey - BT37
Enquiry from: Hayley H
Start Date: Immediate
mrs requested quotes for upvc double glazing from a window installer around newtownabbey. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the in...
Belfast - BT14
Enquiry from: Joanne G
Start Date: Immediate
4 bed detached needing new 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: detached how many windows...
Belfast - BT11
Enquiry from: Caitriona T
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...
Belfast - BT17
Enquiry from: Winnie M
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...
Newtownabbey - BT36
Enquiry from: Andy H
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? - -. What colour do you want them to be? - -. Do...
Carrickfergus - BT38
Enquiry from: Noel S
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? - not sure. What colour do you want them to be? ...
Newtownabbey - BT37
Enquiry from: Susan M
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? - -. D...
Belfast - BT17
Enquiry from: Cathy M
Start Date: Immediate
Call back anytime. Number of windows: 7 Number of doors: 3 Quote requested on windows and doors, in PVCu, to be supplied and fitted.
Ballymena - BT42
Enquiry from: Anne B
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? - -. D...
Antrim - BT41
Enquiry from: Fran S
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? - -. D...
Belfast - BT11
Enquiry from: Stella S
Start Date: 1 to 3 months
customer in belfast 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 14/11/2025 12:41.please call to arr...
Belfast - BT14
Enquiry from: Parminder K
Start Date: Immediate
Bought new house all windows needs replaced
Ballynadolly - BT28
Enquiry from: Sylvia M
Start Date: Immediate
Call back anytime. Number of windows: 9 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.
Ballynadolly - BT28
Enquiry from: Karen 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...
Newtownabbey - BT36
Enquiry from: Jean 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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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.
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.
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.
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.
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