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 Castle Cary in August 2026
Requests for Secondary glazing quotations in Castle Cary in August 2026. 0% change from July 2026.
Requests for Secondary glazing quotations in Somerset in August 2026. 0% change from July 2026.
We are a family run company based in Gloucester, we specialise in upvc windows and doors. We offer a 10 year guarantee which uniquely includes every aspect of the product and installation, not just the frames. Any questions, please don’t hesitate t...
Professional and good customer service
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
First Alert (Double Glazing) Ltd's promises to give you a terrific service, starting with a no obligation survey, advice and quotation. We promise to treat your home as if it were our own throughout the installation process, and because we take pride...
Still awaiting quote but a good professional service this morning . .
Castle Cary - BA7
Enquiry from: Shaun B
Start Date: Immediate
Copy invoices for £7,500 paid on 14/10/21. If you can email *** with this invoice that would be great thank you!
Castle Cary - BA7
Enquiry from: Peter D
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.
Castle Cary - BA7
Enquiry from: Ally T
Start Date: Immediate
Work description: Replacement of windows and possibly the frames too Homeowner UPVC Supplied and fitted Please contact to appoint
Castle Cary - BA7
Enquiry from: Tracy H
Start Date: Immediate
Home owner 5 windows Front door , Patio door Upvc Supplied and fitted Immediately Please contact to appoint *
Yeovil - BA22
Enquiry from: Jane H
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 Yeovil area 2+ windows Supply and insta...
Martock - TA12
Enquiry from: Steven 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 d...
Sherborne - DT9
Enquiry from: Anna-Louise G
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.
Yeovil - BA20
Enquiry from: David F
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...
Sturminster Newton - DT10
Enquiry from: Nicola B
Start Date: Immediate
Call back anytime. Number of windows: 7 Quote requested on windows, in PVCu, to be supplied and fitted.
Stoke-sub-hamdon - TA14
Enquiry from: Natalie B
Start Date: Immediate
Call any time. Number of windows: 5 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.
Yeovil - BA22
Enquiry from: Julie P
Start Date: Immediate
Call any time. Number of windows: 8 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.
Yeovil - BA21
Enquiry from: Connor J
Start Date: Immediate
call any time. number of windows: 4 number of doors: 1 quote requested on windows and doors, in pvcu, to be supplied and fitted.
Wincanton - BA9
Enquiry from: Bernice F
Start Date: Immediate
Replacement for 2 windows Looking to do with part grant
Martock - TA12
Enquiry from: Patricia J
Start Date: Immediate
3 house front window replacement, prefer aluminium
Martock - TA12
Enquiry from: Janice B
Start Date: Immediate
3 windows 1 window has 3 panes the other 2 windows have 2 panes are you the property owner: owner of the property what level of service do you require: supply and installation of full unit property ty...
Sturminster Newton - DT10
Enquiry from: Julie B
Start Date: Immediate
Hi Lee Please could you give me a quote to replace some blown double glazed units? Many thanks Julie
Wincanton - BA9
Enquiry from: Sue H
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? ANY Do you require doo...
Sturminster Newton - DT10
Enquiry from: Jacqui G
Start Date: Immediate
Replacement double glazed window panel.Not the frame
Templecombe - BA8
Enquiry from: Dan H
Start Date: Immediate
In need of a new back door
Yeovil - BA21
Enquiry from: Louise B
Start Date: Immediate
Are you the home owner of that property? Yes How many windows are you considering replacing? 2 What material do you require, UPVC? upvc What colour do you want them to be? - Do you require doors If s...
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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.
uPVC is unplasticised polyvinyl chloride. It is a favourite amongst homeowners and manufacturers for its cheap production cost and excellent benefits. uPVC is used for window frames, conservatories and doors. In fact, uPVC can be three times cheaper than wooden frames and is also the most energy efficient option.As well as this, uPVC is now available in a range of colours other than the typically seen bright white finish. It can also be recycled, is durable and resistant to changing weather conditions.
Ultimately the double glazing company you use is responsible for the quality of work and to ensure your windows are of an excellent standard. This is why it’s important to get a warranty and use a Fensa registered installer. If problems emerge within a couple of years then it’s likely the installation was of a poor standard.Contact the double glazing company and have the issue repaired or new windows replaced. This doesn’t matter if you received a discount of free windows as part of the deal. As long as you entered into a contract the company is obliged to restore the windows.
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.
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