When changing your home's windows you do not necessarily need to complete the whole property. Once in a while you might only need to have a solitary window replaced, maybe because of a broken pane or for upgrading to double glazing.
It's common for people to replace simply one double glazed window. One factor that individuals intend to replace one window is that the closed device inside has actually stopped working. You'll recognize if this has happened due to the fact that you'll be able to see condensation on the within glass, which gets discouraging because you can't clean it away. In this instance, you can select to simply change the sealed device or the whole framework, which you could intend to do if it's looking past its best.
When you're changing just one double glazed window, if you recognize the brand name of your current windows you might ask your installer if they can resource the exact same ones. This will certainly help to keep them looking as comparable as possible, although if your existing windows are very old you may observe some discolouration on the outside compared to the brand-new one, and also locks and trickle vents may look different.
Replacing simply one double glazed window should not take a qualified window fitter long, and could set you back as little as ₤ 300. It's worth bearing in mind that all substitute windows require to be accredited that they've been put in to meet building guidelines, so you'll require to relate to your local building control officer that will come and examine the job after that issue a certification. If you ask an installer who is signed up with a self-certification scheme (like FENSA, CERTAS) to fit the window for you, they can issue the certification themselves when they've finished the work.
We will supply as much as four Window Installer pros locally, that will certainly use quotes for the job you desire done. You'll obtain a property visit from specialists in London that'll help you to choose the right uPVC Single Window for your residence before performing the fitting. Enter your postal code to start browsing now.
The typical cost of uPVC single window is around £300. Costs fluctuate based on the materials and the organisation used. The upper price range can be as high as £400. The material costs are in most cases around £110
| Avg. price low | Avg. price low |
|---|---|
| Avg. price | Avg. price |
| Avg. price high | Avg. price high |
£500
£375
£250
£125
£0
| Labour cost | £180 | |
| Material cost | £110 | |
| Waste removal | £10 |
Requests for quotations in London in June 2026
Requests for uPVC Single Window quotations in London in June 2026. 0% change from May 2026.
Requests for uPVC Single Window quotations in London County in June 2026. 0% change from May 2026.
England's capital city is now recovering from a successful Olympic Games and this huge multi-million pounds venture, paired with several houses programmes, has modernised the city post-war. Regardless of this, there are still a lot of buildings offering an insight to the past and Tudor, Georgian and Victorian buildings line the roads. With a contrast of the old and the new, there are many different projects homeowners carry out, from energy efficiency updates to household extensions.
London - N15
Enquiry from: Bel C
Start Date: Immediate
are you the home owner of that property? - yes - sole. how many windows are you considering replacing? - 1. what material do you require, upvc? - upvc. what colour do you want them to be? - unsure. i ...
London - N22
Enquiry from: Nabeela Z
Start Date: Immediate
Call any time. Number of windows: 1 Style of window: Standard window Quote requested on windows, in PVCu, to be supplied and fitted.
London - SE18
Enquiry from: Yvonne L
Start Date: Immediate
Call back anytime. Number of windows: 1 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.
London - SW20
Enquiry from: Riad A
Start Date: Immediate
one window 120 x 110 cm new window to replace the current on first floor
London - SW19
Enquiry from: Ravi N
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 how many windows do you need: 1 window do you require doors: 375, 10030 i ...
London - NW5
Enquiry from: Kacey A
Start Date: Immediate
What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - 1. What material do you require, UPVC? - upvc/ wood . What colour do you want them to b...
London - E5
Enquiry from: Michelle G
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? - /. I assume you requir...
London - E4
Enquiry from: Hakan A
Start Date: Immediate
Are you the home owner of that property? - yes- joint . How many windows are you considering replacing? - 1. What material do you require, UPVC? - upvc. What colour do you want them to be? - white. I ...
London - E12
Enquiry from: Sultana B
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: 1 window i am looking...
London - SE25
Enquiry from: Ola S
Start Date: Immediate
Replacement of PVc Windows
London - N14
Enquiry from: Lyn B
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? - -. I assume you requir...
London - E2
Enquiry from: Jacci B
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: other how many windows do you need: 1 window do you require...
London - SW2
Enquiry from: James D
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: 1 window i am looking...
London - NW2
Enquiry from: Ruth H
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? - -. I assume you re...
London - E18
Enquiry from: Rachael F
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? - -. I assume you requir...
London - SE24
Enquiry from: Daljit M
Start Date: Immediate
Are you the home owner of that property? - Yes. How many windows are you considering replacing? - 1. What material do you require, UPVC? - UPVC. What colour do you want them to be? - Unsure. I assume ...
London - SE19
Enquiry from: Denise E
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? - -. I assume you requir...
London - SE6
Enquiry from: Jay G
Start Date: Immediate
Are you the home owner of that property? - Yes . How many windows are you considering replacing? - 1. What material do you require, UPVC? - UPVC. What colour do you want them to be? - UNSURE. I assume...
London - SE18
Enquiry from: Yvonne L
Start Date: Immediate
are you the property owner: owner of the property other forms: kitchen design & installation agreed to receive quotes for selected products: yes please call to appoint
London - SE22
Enquiry from: Kasparas A
Start Date: Immediate
what best describes your living situation? - homeowner - sole. how many windows are you considering replacing? - 2. what material do you require, upvc? - upvc. what colour do you want them to be? - wh...
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Double glazed windows are better than single glazed generally because they are more energy efficient. The clue’s in the name – double glazed windows have two panes of glass while single glazed windows only have one. In double glazed windows, there is a space between the two glass panes. This space is filled with inert gas or a tight vacuum, which helps to provide an extra level of insulation. That means that heat won’t escape your home easily, nor will it creep in, so you can keep your home at a more comfortable temperature.
The extra pane of glass also helps to increase your home’s security. Single glazing is pretty easy to smash through, whereas it will take much more effort to smash double glazing and will create more noise, so burglars might be put off.
Another reason why double glazed windows are better than single glazed ones is that they help to reduce noise. Of course, if you live by a busy road you’ll still hear some traffic noise, but it can be significantly reduced buy double glazing. In the same way that the inert gas in the middle of the two panes keeps heat in and the cold out, it also helps keep noise out.
With double glazing, you’ll also notice much less condensation. With single glazing, it’s common to see condensation on the inside of the windows, especially when the heating is on. This is because the outside of the window is cold, but the inside is warm. With double glazing, the insulation between the two panes stops there being such a difference in temperature between the inside and outside of the window.
Unfortunately, you can’t fix the glass on one side of a double glazed window. That’s because they’re sealed units – once one pane of glass is broken, that will break the seal and its thermal insulation properties will be lost.
The good news is that if your window frame is still looking great, there’s no need to replace that. You can simply replace the glass in the window, which will cost much less. You can look to spend around £250 on a sealed unit, whereas a whole replacement single window may cost up to £600.
When an installer comes to replace the glass in your double glazed window, they will survey the inside and outside of your home around the window, then move any furniture by the window so they’ve got access. They should then pop a dust sheet down to stop any debris from getting on your floor.
Then, the installer will carefully remove the beads from the frame. They will then lift the glass out of the frame and put it somewhere safe before cleaning out all of the dust and any debris that has found its way into the frame. Using spacers at the bottom of the frame, the installer will make sure that the sealed unit is square in the frame to get a good fit. Once they’re happy, they will replace the beading and make sure it looks perfect before cleaning up their tools.
You could have a go at replacing the glass on a double glazed window yourself, but it’s not recommended. Leave it to the professionals who will know exactly what to do and will be able to do it quickly and safely.
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