uPVC Double Glazing
Greenford - UB6
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Greenford - UB6
Enquiry from: Kalyan P
Start Date: Immediate
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Enfield - EN2
Enquiry from: Ragbier S
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Two glass panels to be replaced in the kitchen
Shepperton - TW17
Enquiry from: Stuart D
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New handle mechanism Second won’t open
Hampton - TW12
Enquiry from: Anthony B
Start Date: Less than one month
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Wembley - HA0
Enquiry from: Tasos K
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Uxbridge - UB8
Enquiry from: Rajesh A
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Need glass replaced in Velux in GHU S06 loft window
Uxbridge - UB9
Enquiry from: Patricia S
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Twickenham - TW2
Enquiry from: Ben H
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Fixed picture window with thin frame ideally aluminium but maybe pvc. Dimensions 850mm x 2100mm low‑E, argon-filled glazing and a warm-edge spacer toughen glass
Harrow - HA3
Enquiry from: Kalpesh N
Start Date: Immediate
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Southall - UB1
Enquiry from: Amir S
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2+ windows Supply and install
Greenford - UB6
Enquiry from: Hugh R
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West Drayton - UB7
Enquiry from: Biness B
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Wish to build a porch. I wish to add a small porch in front of the entrance to the house
Harrow - HA3
Enquiry from: Salah A
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2+ windows Supply and install
Southall - UB2
Enquiry from: Saeed R
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Edgware - HA8
Enquiry from: Adrienne C
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Looking at various options 2+ windows Supply and install
Southall - UB2
Enquiry from: Prya K
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2+ windows Supply and install
Brentford - TW8
Enquiry from: Barbara D
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New front door fitted and new windows
Feltham - TW14
Enquiry from: Maureen J
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Edgware - HA8
Enquiry from: Monika B
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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| Window Installer job | Window Installer cost in 2026 |
|---|---|
| Double glazing in Middlesex | £988-£3,100 |
| Upvc double glazing units only in Middlesex | £575-£900 |
| Triple glazing in Middlesex | £988-£3,100 |
| Aluminium windows in Middlesex | £1,373-£2,088 |
| Wooden window in Middlesex | £3,750-£5,750 |
| Aluminium windows supply only in Middlesex | £1,600-£2,500 |
| Upvc or wood porch in Middlesex | £2,625-£4,025 |
| Sash window in Middlesex | £1,138-£3,600 |
| Glaziers in Middlesex | £57-£87 |
| Secondary glazing in Middlesex | £988-£3,100 |
| uPVC Single Window in Middlesex | £225-£345 |
| Wooden sash windows in Middlesex | £3,750-£5,750 |
| Wooden windows supply only in Middlesex | £2,760-£4,140 |
| Aluminium repair in Middlesex | £240-£360 |
| Window repair in Middlesex | £268-£402 |
| Wooden window repair in Middlesex | £320-£480 |
After fitting your new windows, your installer should take away and dispose of your old windows. If you want to keep them, just let your installer know before they start work. The UPVC frames are melted down and used on the unseen parts of new windows. Aluminium frames are re-smelted and wooden are broken down and used as chipboard.
Aluminium windows have a range of benefits that make them a great alternative to uPVC windows. Developments in technology have meant that modern aluminium windows now have the same energy efficiency levels as uPVC. Plus, their strength and flexibility make them a more attractive choice to many homeowners, particularly for more modern buildings.
Aluminium frames are typically much thinner than uPVC frames, allowing more light in and wider views. The metal can also be moulded to suit custom shapes, making it ideal for unusually shaped windows. Aluminium windows are available in lots of different colours, so can be designed to suit a wide range of interiors and exteriors.
Yes, of course! It’s common for people to replace just one double glazed window. One reason that people want to replace one window is that the sealed unit inside has failed. You’ll know if this has happened because you’ll be able to see condensation on the inside of glass, which gets frustrating because you can’t wipe it away. In this case, you can choose to simply replace the sealed unit or the entire frame, which you might want to do if it’s looking past its best.
When you’re replacing just one double glazed window, if you know the brand of your current windows you could ask your installer if they can source the same ones. This will help to keep them looking as similar as possible, although if your existing windows are very old you may notice some discolouration on the exterior compared to the new one, and locks and trickle vents might look different.
Replacing just one double glazed window shouldn’t take a qualified window fitter long, and could cost as little as £400. If you want to simply replace the sealed unit, that may only cost around £250. You could try to fit a new window yourself, but it’s worth bearing in mind that all replacement windows need to be certified that they’ve been installed to meet building regulations, so you’ll need to apply to your local building control officer who will come and inspect the work then issue a certificate. If you ask an installer who is registered with a self-certification scheme (like FENSA) to fit the window for you, they can issue the certificate themselves when they’ve finished the work.
You don’t have to, especially if you’re on a budget. If you’re only replacing some, it’s a good idea to get all the windows on one side of your property replaced at the same time, so they all look the same. Be aware, obviously, huge savings could be had by having a number of windows replaced at the same time.
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.
All new windows come with an energy efficiency rating from A to G. A is best, while G is the lowest rating. Anything above C is considered good, but these days most companies will be able to supply you with A-rated windows to maximise your energy efficiency.
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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