Find a Window Installer you can trust in Knighton.

Choose from 23 Window Installers, all rated by people like you.

Over 0 reviews & an average rating of 0/5 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

Recent Window Installer Enquiries

20 Jan

Windows | uPVC

Knighton - LD7

Enquiry from: Stephanie K

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...

Post a similar request >

11 Dec

Windows | uPVC

Knighton - LD7

Enquiry from: Elizabeth A

Start Date: Immediate

Window replacements xxxxxxxxxxxxxxx

Post a similar request >

25 May

Windows | uPVC

Knighton - LD7

Enquiry from: Michelle M

Start Date: Immediate

are you the property owner: owner of the property what level of service do you require: supply and installation of full unit property type: terrace how many windows do you need: 4+ windows do you req...

Post a similar request >

16 Feb

Windows | uPVC

Knighton - LD7

Enquiry from: Alyse I

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.

Post a similar request >

22 Mar

Windows | uPVC

Knighton - LD7

Enquiry from: Nancy A

Start Date: Immediate

Homeowner 2+windows uPVC Supplied and fitted Start date: +3 months but depending on price Please contact to appoint

Post a similar request >

19 Mar

Windows | uPVC

Knighton - LD7

Enquiry from: Nancy A

Start Date: Immediate

Homeowner 2+ windows UPVC Supplied and fitted Please contact to appoint

Post a similar request >

26 Jan

Windows | uPVC

Knighton - LD7

Enquiry from: Vince C

Start Date: Less than one month

Are you the property owner: Owner of the property Is the building: Business Agreed to recieve uPVC Quotes: Yes Other Forms: 35 Agreed to recieve quotes for selected products: Yes Please call to appoi...

Post a similar request >

28 Jul

Windows | uPVC

Knighton - LD7

Enquiry from: Joyce L

Start Date: Immediate

Home Owner UPVC Supplied and Fitted Call to Appoint

Post a similar request >

30 Mar

Windows | uPVC

Bucknell, Craven Arms, Lydbury North - SY7

Enquiry from: Sue W

Start Date: Immediate

Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.

Post a similar request >

23 Mar

Windows | uPVC

Llandrindod Wells - LD1

Enquiry from: Bill F

Start Date: Immediate

customer is looking to have new windows installed. they are unsure of options so would like to discuss. confirmed interest via customer lives in llandrindod wells area 2+ windows supply and install pl...

Post a similar request >

18 Mar

Windows | uPVC

Llandrindod Wells - LD1

Enquiry from: Lara P

Start Date: Immediate

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

Post a similar request >

22 Jan

Windows | uPVC

Llandrindod Wells - LD1

Enquiry from: Geoff M

Start Date: Immediate

What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - 3. What material do you require, UPVC? - UPVC. What colour do you want them to be? - wh...

Post a similar request >

17 Jan

Windows | uPVC | Single Window

Bucknell, Craven Arms, Lydbury North - SY7

Enquiry from: Peter P

Start Date: Immediate

Call back anytime. Number of windows: 1 Style of window: Standard window Quote requested on windows, in PVCu, to be supplied and fitted.

Post a similar request >

13 Jan

Windows | Wooden | Repair

Llandrindod Wells - LD1

Enquiry from: Joss B

Start Date: Immediate

We need to replace the sash windows on our grade 2 listed home. They are all rotten and I suppose we need new glass and frames and sills. There are about 25/30 windows in all of varying sizes.

Post a similar request >

11 Jan

Windows | Wooden

Llandrindod Wells - LD1

Enquiry from: Emily B

Start Date: Immediate

wooden sash windows for grade ii house

Post a similar request >

09 Dec

Windows | uPVC

Bishops Castle - SY9

Enquiry from: Lee W

Start Date: Immediate

Are you the home owner of that property? - Yes. How many windows are you considering replacing? - 8. What material do you require, UPVC? - UPVC. What colour do you want them to be? - Whtie. Do you req...

Post a similar request >

16 Aug

Windows | uPVC

Llandrindod Wells - LD1

Enquiry from: Krys F

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? yes What colour do you want them to be? white Do you require doors If...

Post a similar request >

01 Jul

Windows | uPVC

Llandrindod Wells - LD1

Enquiry from: Owen C

Start Date: Immediate

5 windows replacing with double glazed units

Post a similar request >

30 Aug

Windows | Glazing

Montgomery - SY15

Enquiry from: Peter W

Start Date: Immediate

Customer is looking to replace the single glazed units in the Sash Windows to Thin Double Glazed units. Call back anytime. Type of window / door: Windows Glass replacement only: Yes Number of wi...

Post a similar request >

22 Aug

Windows | uPVC

Montgomery - SY15

Enquiry from: Sara P

Start Date: Immediate

Call anytime. Number of windows: 6 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

Post a similar request >

How much do Window Installer services cost?

How much do Window Installers cost? Prices for Window Installers in 2025 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 Knighton is:

£2,082

Window Installer job Window Installer cost in 2025
Double glazing in Knighton £1,500-£5,000
Upvc double glazing units only in Knighton £800-£1,200
Triple glazing in Knighton £1,500-£5,000
Aluminium windows in Knighton £1,875-£2,875
Wooden window in Knighton £3,750-£5,750
Aluminium windows supply only in Knighton £2,600-£3,900
Upvc or wood porch in Knighton £2,625-£4,025
Sash window in Knighton £1,800-£6,000
Glaziers in Knighton £57-£87
Secondary glazing in Knighton £1,500-£5,000
uPVC Single Window in Knighton £225-£345
Wooden sash windows in Knighton £3,750-£5,750
Wooden windows supply only in Knighton £2,760-£4,140
Aluminium repair in Knighton £240-£360
Window repair in Knighton £268-£402
Wooden window repair in Knighton £320-£480

Related Window Installer searches in Knighton

Window Installer FAQs

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.

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.

how does double glazing work?

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.

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 to repair or replace a double glazed unit?

Are you about to purchase a double glazed unit and wondering how to go about the replacement project? If yes, then you’re at the right place. Firstly, it’s advisable to hire the services of a reliable professional who can guarantee the best results for help especially if you lack proper training and experience in the field. However, we’ve put together this step by step guide to provide you with a detailed information about the double glazed unit replacement process. Let’s get started!

The tools and materials you require for the project includes tape measure, hammers, nail punch, scraper, spacing blocks, non-hardening butyl putty, high-security glazing tape rolls and beading tacks.

• Work out the glass size required. Simply use the tape measure to measure from frame edge to frame edge while also taking note of the thickness.

• When about to order, inform the glass merchant that the measurement provided are frame-tight. This will make him reduce the dimension a little bit, mostly by 5mm for clearance.

• Remove the beading and ensure to support the glass while doing so. If the glass units are fitted in wooden windows, you may need to cut the putty-based compound they’re normally sealed with to remove the glass.

• Lay out the beading in the window’s shape to make for easier refitting later on.

• If you’re working on wooden frames, wipe out all traces of excess installation compound using a scraper and clean the rebate with a soft brush.

• Trial fit the double glazed windows to ensure they’d slide into the frame without being forced.

• Plastic frame windows are usually in between a pair of gaskets, you should replace this with a hight security glazing tape. While for a wooden frame, simply apply strips of flexible non-setting butyl putty or high-security glazing tape on either sides of the glass.

• Install and centralize the glass in the frame.

• Press the nail wooden beading or plastic beading back into place.

Can the glass in a double glazed window be replaced?
Yes, the glass in a double glazed window can be replaced. The glass in a window, or sealed unit to use its proper name, is not permanently attached to your window frames so if it gets damaged but your frames are still intact, there’s no need to replace the whole window. The glass in your double glazed window might need to be replaced due to:
  • Impact from a stone or other object smashing the glass in a ‘bullseye’ effect
  • The result of a break-in
  • Extreme weather or changes in pressure causing a crack
  • The sealed unit being ‘blown’, meaning that it’s no longer energy efficient due to air leaking out
A lot of window installers will replace the glass in your double glazing for you, but you might need to get quotes from specialist glaziers too. Glaziers deal purely with the glass in windows rather than installing entire frames. It won’t take a professional very long to replace the glass in your window. They will remove the beading from around the window with a pallet knife or chisel, leaving the top one until last to keep the sealed unit stable. Then, they simply lift out the glass carefully and will discuss with you whether the removal of the old sealed unit is included in their quote. Next, they will brush away any dust and debris that’s made its way into the frame and place spacers at the bottom. They will then lift the new glass into the frame, making sure it’s completely square. When they’re happy, they’ll remove the spacers and replace the beading back in reverse order. You’ll notice the replacement glass in your new window straight away as draughts should be eliminated and you’ll be able to see clearly again!
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 long do double glazed sealed units last?
When it comes to how long double glazed sealed units (the glass inside the window) last, a lot of it is down to the quality of the glass and the environment that your windows sit in. It’s not uncommon for your window frames themselves (especially if they are uPVC) to last longer than your sealed units. Sealed units are called that because they’re two panes of glass sealed together with an air gap in between. They use what’s called a ‘perimeter seal’ to protect the air gap between the panes, and is usually made of butyl mastic which retains a desiccant within a perforated metallic spacer bar. The desiccant’s job is to absorb any moisture which finds its way into the air gap to stop your window from misting up on the inside. When a sealed unit fails, or is ‘blown’, it’s usually because moisture builds up around the seal and causes it to fail. Sealed units won’t last forever, so you will eventually end up with condensation inside the panes of your double glazing, but in an ideal environment your double glazed sealed units could last up to 30 years, with some manufacturers claiming as long as 40 years. But they do require a bit of maintenance and the position of your windows will also make a difference as to how long they last. There are a few things that determine how long a sealed unit will last:
  • Climate - If your window faces south, it will be subject to direct sunlight for a lot of the day. This tends to cause the sealed unit to fail more quickly – a south-facing window may last between 10-25 years. This is because the spacer bars will twist as the temperature rises and causes the adhesive holding them together to eventually fail.
  • Moisture - Windows in kitchens and bathrooms tend to fail more quickly because they come into contact with moisture more often. For example, if water gets on your windowsill when you shower, the seal around the glass will come loose more quickly if it’s constantly wet.
When you replace the sealed units in your windows or get completely new double glazing, make sure you choose an installer that uses quality products and will take all the steps to ensure that your sealed units are kept away from moisture as much as possible.

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 Knighton.

Pick the right pro for you

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

Are you a Window Installer in Knighton?

View our open Window Installer jobs near you

Join today
View Shortlist