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 Barnstaple in May 2026
Requests for Secondary glazing quotations in Barnstaple in May 2026. 0% change from April 2026.
Requests for Secondary glazing quotations in Devon in May 2026. 0% change from April 2026.
We are a Home Improvements company specialising in replacement Windows and Doors, refurbishment and new build Conservatories and Porches, Garage Doors, Sliding Patio/French/Bi-Fold doors, Soffits/Fascia/Guttering replacement. Serving the South West o...
Very polite, no pressure
The company was established in 1977 selling and installing aluminium windows mainly in the South West. Believing that the best way of controlling quality was to make the product we started manufacturing in the summer of 1978 since which time we have ...
excellent presentation and good price
Barnstaple - EX32
Enquiry from: Diane B
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 Barnstaple area 2+ windows Supply an...
Barnstaple - EX31
Enquiry from: Lisa C
Start Date: Immediate
Customer in Barnstaple area made an enquiry for double glazing online. 2+ windows Supply and install Please call to arrange an appointment to discuss options
Barnstaple - EX31
Enquiry from: Rosie O
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.
Barnstaple - EX32
Enquiry from: Mark A
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...
Barnstaple - EX32
Enquiry from: Jayne 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...
Barnstaple - EX32
Enquiry from: Mark A
Start Date: Immediate
What best describes your living situation? - -. Are you the home owner of that property? - -. How many windows are you considering replacing? - -. What material do you require, UPVC? - -. What colour ...
Barnstaple - EX32
Enquiry from: Natasha C
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 ...
Barnstaple - EX32
Enquiry from: Jisha M
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 ...
Barnstaple - EX32
Enquiry from: Kevin J
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 ...
Barnstaple - EX31
Enquiry from: Michael S
Start Date: Immediate
Are you the home owner of that property? yes How many windows are you considering replacing? 5 What material do you require, UPVC? 2 What colour do you want them to be? - Do you require doors If so ho...
Barnstaple - EX32
Enquiry from: James M
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...
Barnstaple - EX32
Enquiry from: David E
Start Date: Immediate
Quote for double glazing (8 windows, 1 bifold, 1 composite front door & 1 glass rear door. Recommended by Darren Berry.
Barnstaple - EX31
Enquiry from: Lola L
Start Date: Immediate
Are you the home owner of that property? yes joint How many windows are you considering replacing? 3 What material do you require, UPVC? UPVC What colour do you want them to be? OPEN Do you require do...
Barnstaple - EX32
Enquiry from: Penny C
Start Date: Immediate
*homeowner 2+ windows upvc supplied and fitted please call to appoint i am looking for quotes for 4+ windows are you the property owner: owner of the property what level of service do you require: s...
Barnstaple - EX31
Enquiry from: Stacey S
Start Date: Immediate
I would like 4 new windows due to mould and condensation
Barnstaple - EX31
Enquiry from: Stephany P
Start Date: Immediate
call anytime. number of windows: 12 quote requested on windows, in pvcu, to be supplied and fitted. i am looking for quotes for 4+ windows are you the property owner: owner of the property wha...
Barnstaple - EX32
Enquiry from: Rachel B
Start Date: Immediate
Call any time. Number of windows: 6 Quote requested on windows, in PVCu, to be supplied and fitted.
Barnstaple - EX31
Enquiry from: David B
Start Date: Less than one month
Best Time: Any Work Type: uPVC Windows and Doors
Barnstaple - EX31
Enquiry from: John C
Start Date: Immediate
Call any-time Number of windows: 2 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.
Barnstaple - EX32
Enquiry from: Rochdi M
Start Date: Immediate
Call anytime. Number of windows: 5 Number of doors: 3 Quote requested on windows and doors, in PVCu, to be supplied and fitted.
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Just like every other thing in your house, your double glazed windows have an expected lifespan attached to it as it gradually becomes less functional and less efficient over time. Although there are actually top quality windows which are able to last a very long time, but the fact still remains that nothing can stand the test of time or last forever. Even the best quality double glazed windows will eventually need to be replaced at some point. So exactly how long do double glazing windows last before need a replacement?
To make it brief, most double glazing window units are typically expected to last an average of 20 years. This number of years can, however, vary within the range of 10 to 35 years based on the several factors such as the type, quality of materials as well as installation and where the windows are located.
The reason for the depreciation in double glazing windows is, over time, the windows may be subjected to some wear, tear as well as all kinds of minor damages which includes gas filled insulated glazing unit slowly and gradually leaking. According to the Centre for Sustainable Energy, the evaporation of 25 percent of gas will ultimately minimize the windows’ thermal performance. And when this occurs, fitting a secondary glazing measure or replacing the windows should be put into consideration.
Another factor leading to the gradual depreciation in double glazing windows over time has to do with condensation. When the window collects between the layers of glass due to the failure of the seal of the perimeter and the saturation of the desiccant, can only be solved by IGU replacement.
And finally, the ravages of time also has a way of taking its toll on double glazing windows. This can happen in so many ways such that the window becomes a lot less efficient and later needing to be replaced.
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.
You don’t have to, especially if you’re on a budget. If you’re only replacing some, it’s a good idea to get all the windows on one side of your property replaced at the same time, so they all look the same. Be aware, obviously, huge savings could be had by having a number of windows replaced at the same time.
On the grand scale of things there isn’t a huge difference between B-rated windows and A-rated windows. Consumer watchdog Which? have calculated an extra 6.5% would be saved on energy bills with A rather than B rated panes. Be aware that A rated windows are slightly more expensive, however.
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