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 Londonderry in May 2026
Requests for Secondary glazing quotations in County Londonderry in May 2026. 0% change from April 2026.
Requests for Secondary glazing quotations in Northern Ireland in May 2026. 0% change from April 2026.
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...
Magherafelt - BT45
Enquiry from: John 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...
Londonderry - BT48
Enquiry from: Margaret 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...
Coleraine - BT51
Enquiry from: Alison W
Start Date: Less than one month
customer made an enquiry for upvc double glazing and confirmed on the local quotes site they would like quotes from a window installer.miss lives in the coleraine area and would like a call to discuss...
Londonderry - BT47
Enquiry from: Ian 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...
Portstewart - BT55
Enquiry from: Cecilia M
Start Date: Immediate
What best describes your living situation? - Homeowner - Joint. How many windows are you considering replacing? - -. What material do you require, UPVC? - -. What colour do you want them to be? - -. D...
Limavady - BT49
Enquiry from: Paula Canning -
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...
Limavady - BT49
Enquiry from: James Q
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...
Londonderry - BT48
Enquiry from: J
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...
Londonderry - BT48
Enquiry from: Mairead O
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...
Coleraine - BT51
Enquiry from: Carol H
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...
Londonderry - BT48
Enquiry from: Regina M
Start Date: Immediate
Call back anytime. Number of windows: 10 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.
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.
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...
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.
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...
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...
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...
Coleraine - BT51
Enquiry from: Davy 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...
Magherafelt - BT45
Enquiry from: Paul A
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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One of the essential factors that makes a home truly a home is the convenience and comfort it provides us. As a result, we usually have a long to do list comprising things that come together to make sure our home is comfortable with ambient temperature at the very top of the scale of preference. After all, no matter how greatly designed your furniture and home decor is, it probably would amount for nothing if the temperature is either too hot or too cold. Some of the most common ways we incorporate to make the temperature a lot more conducive and warm during the winter months is by installing air conditioning system or through top notch insulation materials, but the fact still remains that a lot of heat would escape through the doors and windows. And that’s exactly the use of double glazing. So how exactly does double glazing work?
Double glazing basically works by preventing the escape of air and trapping it between two panes of glass. It’s the trapped air which serves as an insulation barrier which delivers 3 major functions. First and foremost, it stops the escape of heat through the window as the barrier created insulates the room from varying air temperatures at both sides of the glazing unit. The second major function is the double glazing works to keep down noise pollution coming from outside. While the third major function of double glazing I the fact that it helps minimize condensation which usually occurs on the single glazed windows’ inside as the cold outside air works to cool the warm air inside the house. When you install a double glazing window, the insulation barrier generated will work to stop the air temperature transmission which ultimately helps prevent the occurrence of condensation.
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.
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.
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.
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