Find a Window Installer you can trust in Llandeilo.

Choose from 36 Window Installers, all rated by people like you.

Over 34 reviews & an average rating of 4.8/5 stars, you'll find the right pro

Choose and shortlist

Use the shortlist button to select up to 4 tradespeople, enter your project details and press send

or

Keen to get on with the job?

Get up to 4 quotes from local Window Installers near you

View Shortlist
Verified Pro

Alexander Constructors

0 review(s)
Offers services in LLANDEILO
South Wales, Penarth based design and build contractor. Projects completed include new houses, extensions, kitchens, bathr...
Over 20 Reviews

Securahome PVCu

26 review(s)
Offers services in LLANDEILO
Est. in 1994, Securahome, based in Gorseinon, Swansea, offers a range of UPVC, timber and aluminium orangeries, windows, d...
Complete home improvements with honest pricing, brought to you with both innovation and design.
Over 35 years’ experience, we offer the complete package from design to installation & 10 years beyond. We offer start to ...

Windowmaker

0 review(s)
Offers services in LLANDEILO
We are one of the few window companies in Swansea that manufacture their own Upvc windows and doors, using eurocell profil...

Recent Window Installer Enquiries

22 Dec

Windows | uPVC

Llanwrda - SA19

Enquiry from: Stan S

Start Date: Immediate

Customer made an online enquiry for new double glazing. Homeowner confirmed interest via SMS/ Considering a range of options Homeowner lives in Llanwrda area 2+ windows Supply and install Please call ...

Post a similar request >

24 Sep

Windows | uPVC

Llanwrda - SA19

Enquiry from: Carol M

Start Date: Immediate

2 replacement double glazed windows do you require doors: none how many windows do you need: 2-3 windows

Post a similar request >

20 Jan

Windows | uPVC

Llanwrda - SA19

Enquiry from: Tony S

Start Date: Immediate

Sell 4 Times Are you the home owner of that property? yes How many windows are you considering replacing? full house What material do you require, UPVC? upvc What colour do you want them to be? unsur...

Post a similar request >

09 Feb

Windows | uPVC

Llanwrda - SA19

Enquiry from: Carys T

Start Date: Immediate

call anytime. number of windows: 4 number of doors: 2 quote requested on windows and doors, in pvcu, to be supplied and fitted.

Post a similar request >

14 Jul

Windows | uPVC

Llanwrda - SA19

Enquiry from: Victoria L

Start Date: Immediate

Pass: 4 - Call anytime. Number of windows: 10 Quote requested on windows, in hardwood, to be supplied and fitted.

Post a similar request >

12 May

Windows | uPVC

Llanwrda - SA19

Enquiry from: NEST R

Start Date: Immediate

Window handle

Post a similar request >

10 Mar

Windows | uPVC

Llanwrda - SA19

Enquiry from: Amy P

Start Date: Immediate

Home Owner UPVC Supplied and Fitted Call to Appoint

Post a similar request >

09 May

Windows | uPVC

Llanwrda - SA19

Enquiry from: David S

Start Date: Immediate

Are you the property owner: Owner of the property Agreed to recieve uPVC Quotes: Yes Time scale: Immediate 2+ Windows Supplied and Fitted Please Call to Appoint

Post a similar request >

02 Dec

Windows | uPVC

Llanwrda - SA19

Enquiry from: Geraint J

Start Date: Immediate

Replace old wooden windows with upvc double glazed windows, also 2 new doors Are you the property owner: Owner of the property Property Type: Detached How many windows do you need: 5+ Do you requ...

Post a similar request >

02 Apr

Windows | uPVC | Single Window

Llanwrda - SA19

Enquiry from: Heather T

Start Date: Immediate

Are you the property owner: Owner of the property How many windows do you need: 1 Window Material: PVCu What level of service do you require: Supply and Install Please call to appoint

Post a similar request >

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 Llandeilo is:

£2,082

Window Installer job Window Installer cost in 2026
Double glazing in Llandeilo £1,500-£5,000
Upvc double glazing units only in Llandeilo £800-£1,200
Triple glazing in Llandeilo £1,500-£5,000
Aluminium windows in Llandeilo £1,875-£2,875
Wooden window in Llandeilo £3,750-£5,750
Aluminium windows supply only in Llandeilo £2,600-£3,900
Upvc or wood porch in Llandeilo £2,625-£4,025
Sash window in Llandeilo £1,800-£6,000
Glaziers in Llandeilo £57-£87
Secondary glazing in Llandeilo £1,500-£5,000
uPVC Single Window in Llandeilo £225-£345
Wooden sash windows in Llandeilo £3,750-£5,750
Wooden windows supply only in Llandeilo £2,760-£4,140
Aluminium repair in Llandeilo £240-£360
Window repair in Llandeilo £268-£402
Wooden window repair in Llandeilo £320-£480

Related Window Installer searches in Llandeilo

Window Installer FAQs

Will double glazing stop condensation?

If you’ve got a problem with condensation and don’t have double glazing, you should find that getting new windows will help. Condensation is caused by warm air meeting a cold surface which then turns into water droplets. With two panes of glass, less heat will escape from your home and keep the window warmer, meaning when steam from the bathroom or kitchen touches your windows there should be less condensation.

Where can I get one double glazed window?

Most window installers will be able to provide you with one double glazed window and fit it for you. If you’re replacing one double glazed window in your home, ask them to try and source the same windows that you already have or find one that’s very similar. Externally, you probably won’t be able to notice the difference, but if your existing windows are very old there may be some exterior discolouration and the locks and handles might look slightly different.

If you want one double glazed window so you can fit it yourself, there are lots of online companies that can supply you with one window. However, window fitting is a skilled trade and you might want to consider whether you have the right tools and experience to fit it yourself. Of course, you’ll save money on installation costs, but if something goes wrong, you might end up shelling out to get it fixed anyway.

The other thing to consider is that any replacement windows need to be certified that they meet Building Regulations. If you fit the double glazed window yourself, you’ll need to apply to your local council building control officer to get a certificate that confirms that you fitted the window within the regulations. You’ll have to pay a fee for this, and it will be even more expensive if Building Control say that the window hasn’t been fitted within the regulations and you have to start again.

The alternative is to ask a reputable window installer that is registered with a self-certification scheme, like FENSA, to install the window. That means that they can self-certify that the window meets building regulations once they’ve finished the installation.

How much is it to repair the glass in a window?
Accidents happen, and sometimes windows get broken. And that will lead to you wanting to replace just the glass in your window, rather than the whole frame. Also, as windows get older they can mist up on the inside, which means that the unit has ‘blown’ - so you’ll also need to replace the glass. But how much is it to replace the glass in a window? Luckily, if the frame of your window is in good condition, there’s no need to replace it, and this will reduce the cost. For an installer to fit a new pane of glass in a single glazed window, the average cost is £100, while a replacement double glazed sealed unit will cost an average of £110. Of course, as this is an average, if your window is very large you may spend more, and if your window is very small the price may be less. That's why it’s important to get a range of quotes so you can compare costs and get the best price. If you’re good at DIY, you may feel confident enough to have a go at replacing the glass in your window yourself. In that case, the cost of sealed unit and any other materials you need will cost an average of £57. It’s a significant saving, and if you think you can do it, then give it a try. However, if you’re in any way unsure, it’s best to leave it to the professionals. A window installer will be able to replace the glass in your window in less than an hour. Even though it costs more for a professional to do it, if you get it wrong and have to start over it will cost you more in the long run.
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 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.

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.

Do I need toughened glass in my windows?

Whether you need toughened glass in your windows depends on where the windows are in your home or business. Toughened glass is sometimes referred to as tempered or safety glass, and it just means it’s stronger than the standard glass that’s usually offered with double glazed windows. So how do you know if you need it?

Toughened glass is useful in areas of your home where you might come into contact with the windows if you were to trip and fall. If you put your hands out to steady yourself on standard glass the chances are it would break into large sharp pieces with jagged edges. Of course, this means that you could seriously cut yourself if this were to happen. With toughened glass, the structure of the glass is changed so that if it breaks it shatters into lots of tiny pieces, minimising the risk to you if you were to fall on it.

You might want to use toughened glass in patio doors, low windows or frames next to doors. It just means that you will be safer if the unlikely happens and you or a family member falls through the glass. There are certain requirements through Building Regulations with windows at a certain level, but any reputable window installer should be able to go through these with you if you need to replace your windows with toughened glass. The regulations will only apply to new windows – there's no need to switch your windows to toughened glass early, but when you do come to replace them you’ll need to make sure they meet the standard.

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.

Window Installer help and advice

How it works

Tell us about your Window Installer project

Answer a few quick questions to help us match you with the right Window Installer

Get up to 4 free quotes

Receive no-obligation quotes from 4 Window Installers working in Llandeilo.

Pick the right pro for you

Compare prices, customer reviews and services, and hire the right Window Installer.

Are you a Window Installer in Llandeilo?

View our open Window Installer jobs near you

Join today
View Shortlist