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Verified Pro

Alexander Constructors

0 review(s)
Offers services in CASTLE CARY
South Wales, Penarth based design and build contractor. Projects completed include new houses, extensions, kitchens, bathr...

Dorel Construction

0 review(s)
Offers services in CASTLE CARY
quality to the customer's taste and professionalism
We are a Family run business with over 25 years’ experience with windows and doors. Predominantly covering the Southwest, ...

BDS Windows & Doors

0 review(s)
Offers services in CASTLE CARY
BDS Windows and Doors offer the very highest specification and installation of our products. Whether you’re a homeowner sh...

Recent Window Installer Enquiries

21 Sep

Window Repair

Yeovil - BA21

Enquiry from: James A

Start Date: Immediate

2 broken windows and a conservatory door that is not closing

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05 Aug

uPVC Double Glazing

Radstock - BA3

Enquiry from: Lucy B

Start Date: Immediate

Wooden window repair Lead Wooden window repair Lead Wooden window repair Lead

Replacement window in room 3

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29 Mar

uPVC Double Glazing

Yeovil - BA22

Enquiry from: Jane H

Start Date: Immediate

2+ windows Supply and install

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24 Feb

Replacement Glass Only

Sturminster Newton - DT10

Enquiry from: Mary G

Start Date: Immediate

Call back anytime

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26 Jan

uPVC Double Glazing

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

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08 Jan

uPVC Double Glazing

Sherborne - DT9

Enquiry from: Anna-Louise G

Start Date: Immediate

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16 Dec

Window Repair

Yeovil - BA21

Enquiry from: Michelle R

Start Date: Immediate

New seals wanted on all windows. Repairs needed to conservatory roof as leaking. If you can supply, also looking for a panel to cover the bottom panel of the full ceiling to floor window in lounge

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14 Dec

Window Repair

Yeovil - BA22

Enquiry from: Christopher S

Start Date: Immediate

Single pane broken - thin glass - 23.5cm by 36.5cm And single pane -thin glass - cracked - 28cm by 32cm

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02 Dec

uPVC Double Glazing

Yeovil - BA20

Enquiry from: David F

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 doors

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20 Nov

uPVC Double Glazing

Frome - BA11

Enquiry from: Antonia B

Start Date: Immediate

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30 Oct

uPVC Double Glazing

Sturminster Newton - DT10

Enquiry from: Nicola B

Start Date: Immediate

Call back anytime

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28 Oct

uPVC Double Glazing

Shepton Mallet - BA4

Enquiry from: Kanagartnam T

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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22 Oct

uPVC Double Glazing

Stoke-sub-hamdon - TA14

Enquiry from: Natalie B

Start Date: Immediate

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09 Oct

uPVC Double Glazing

Wells - BA5

Enquiry from: Ben T

Start Date: Immediate

Call back anytime

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04 Oct

uPVC Double Glazing

Yeovil - BA22

Enquiry from: Julie P

Start Date: Immediate

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27 Sep

uPVC Double Glazing

Yeovil - BA21

Enquiry from: Connor J

Start Date: Immediate

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25 Sep

Window Repair

Gillingham - SP8

Enquiry from: Emily J

Start Date: Immediate

Full service and repair of upvc

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19 Jul

uPVC Double Glazing

Wincanton - BA9

Enquiry from: Bernice F

Start Date: Immediate

Replacement for 2 windows Looking to do with part grant

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19 Jul

uPVC Double Glazing

Martock - TA12

Enquiry from: Patricia J

Start Date: Immediate

(address removed) front window replacement, prefer aluminium

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How much do Window Installer services cost?

How much do Window Installers cost? Prices for Window Installers in 2026 can differ relying on the kind of task that you require to have performed in your house. It's the inquiry we get asked a whole lot "how much do Window Installers charge?". It's generally very good to have an idea of how much a Window Installer are going to likely charge for their services. Prices will probably rise and fall based upon the products and also the tradesman selected. The table reveals the sorts of service that Window Installers typically do and also the typical cost range of these jobs. Some tasks take longer to complete than others so prices do fluctuate by task.

View our Window Installer cost guide View our Window Installer advice

The average price
of a Window Installer in Castle Cary is:

£2,121

Window Installer job Window Installer cost in 2026
Double glazing in Castle Cary £1,500-£5,000
Upvc double glazing units only in Castle Cary £800-£1,200
Triple glazing in Castle Cary £1,500-£5,000
Aluminium windows in Castle Cary £1,875-£2,875
Wooden window in Castle Cary £3,750-£5,750
Aluminium windows supply only in Castle Cary £2,600-£3,900
Upvc or wood porch in Castle Cary £3,063-£5,013
Sash window in Castle Cary £1,800-£6,000
Glaziers in Castle Cary £57-£87
Secondary glazing in Castle Cary £1,500-£5,000
uPVC Single Window in Castle Cary £225-£345
Wooden sash windows in Castle Cary £3,750-£5,750
Wooden windows supply only in Castle Cary £2,760-£4,140
Aluminium repair in Castle Cary £240-£360
Window repair in Castle Cary £268-£402
Wooden window repair in Castle Cary £320-£480

Related Window Installer searches in Castle Cary

Window Installer FAQs

Are A-rated windows worthwhile?

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.

how to fit a double glazed window?

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.

How much money will I save with double glazing?

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.

What is the Window Energy Rating (WER)?

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.

How much does one double glazed window cost?
How much one double glazed window costs is based on a few factors. If you just want to buy the window to install yourself, it will cost less than if you want an installer to fit it for you. If you want to simply buy one double glazed window without installation it could cost anywhere between £100-£300. That’s for a simple casement window, but other types like sash or tilt and turn windows could cost more. It’s recommended that you get a reputable installer to fit your double glazed windows because they’ve had the relevant training and will be able to install it much more quickly. How much it will cost for them to install one double glazed window will very based on your location, the type of window, how difficult the window is to access and whether you choose standard white uPVC or a coloured or woodgrain effect. An average uPVC casement window might cost somewhere between £300-£400, while a dual turn window might cost between £550-£660 to install. Do you really need to replace the entire window? If it’s just the double glazing that needs replacing, for example if it’s misted up inside, this will cost much less. Most window installers or a glazier will be able to just replace the sealed unit inside, and that may cost as little as £250. It’s always best to get a range of quotes from reputable companies so you know you’ve got a great price and you’re sure you’ll get excellent service.

how long does double glazing last?

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.

How much could I save on my energy bills if I install double glazing?

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.

what is a window sash?

Windows, being a very crucial feature in every home, are one of the things you simply can’t afford to ignore in your home. Having a good understanding and solid knowledge of your windows’ components like the window sash will help you stay up to date with them and able to identify any minor mishaps early on before it leads to a much bigger problem. So what exactly is a window sash?

Well without much fuss, a window sash is simply that part of your windows that’s able to open and close. And there could as well be more than one window sash that’s operable depending on your window’s type. Window sash usually possess a very basic design as well as structure. What’s more? This section of a window happens to be a frame that’s designed in such a way to make for easy placement inside the whole window casement. You’ll discover inside the sash frame, the window glass alongside any framework possessed by your window which includes grids.

Usually, the sash is fitted into the frame of the window on a runners’ set in such a way that allows for both upward and downward movements. And finally, the window sash’s frame typically comes with a locking system which provided for extra safety and security.

The window sash is a vital feature that can determine the durability and overall performance of the windows. In the event whereby your window sash is malfunctioning, it can result to numerous problems which includes both drafts as well as leaks. As a result, it’s very important to keep your window sashes in a great working condition as failure to do so will make opening and closing your windows a really difficult task.

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