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Recent Window Installer Enquiries

15 Oct

uPVC Double Glazing

Watford - WD25

Enquiry from: Stephanie D

Start Date: Immediate

2+ windows Supply and install

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07 Oct

uPVC Double Glazing

London - SW15

Enquiry from: Homayoun F

Start Date: Immediate

2+ windows Supply and install

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28 Sep

uPVC Double Glazing

Greenford - UB6

Enquiry from: Kalyan P

Start Date: Immediate

Quote for windows and doors

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26 Sep

uPVC Double Glazing

Hemel Hempstead - HP3

Enquiry from: Alfie M

Start Date: Immediate

Multiple windows to be Supplied and installed

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24 Sep

uPVC Double Glazing

Windsor - SL4

Enquiry from: Chad F

Start Date: Immediate

Some new windows and a front door

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22 Sep

Replacement Glass Only

Enfield - EN2

Enquiry from: Ragbier S

Start Date: Immediate

Two glass panels to be replaced in the kitchen

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31 Aug

Window Repair

Shepperton - TW17

Enquiry from: Stuart D

Start Date: Immediate

New handle mechanism Second won’t open

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24 Aug

uPVC Double Glazing

London - NW11

Enquiry from: Corinne T

Start Date: Immediate

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18 Aug

uPVC Double Glazing

Hampton - TW12

Enquiry from: Anthony B

Start Date: Less than one month

Wooden window repair Lead Wooden window repair Lead

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17 Aug

uPVC Double Glazing

Wembley - HA0

Enquiry from: Tasos K

Start Date: Immediate

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30 Jul

Replacement Glass Only

Uxbridge - UB8

Enquiry from: Rajesh A

Start Date: Immediate

Wooden window repair Lead Wooden window repair Lead

Need glass replaced in Velux in GHU S06 loft window

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29 Jul

uPVC Double Glazing

Uxbridge - UB9

Enquiry from: Patricia S

Start Date: Immediate

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25 Jul

uPVC Double Glazing

Barnet - EN5

Enquiry from: Tazeen K

Start Date: Immediate

Considering a range of options 2+ windows Supply and install

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20 Jul

uPVC Double Glazing

Twickenham - TW2

Enquiry from: Ben H

Start Date: Immediate

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

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18 Jul

uPVC Double Glazing

London - N11

Enquiry from: Tanisha L

Start Date: Immediate

Multiple windows Supply and install

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15 Jul

Window Repair

St. Albans - AL3

Enquiry from: Gurch N

Start Date: Immediate

Two of our window locks have snapped . These need repairing

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07 Jul

uPVC Double Glazing

Harrow - HA3

Enquiry from: Kalpesh N

Start Date: Immediate

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06 Jul

uPVC Double Glazing

London - WC1X

Enquiry from: Kim S

Start Date: Immediate

2+ windows Supply and install

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25 Apr

uPVC Double Glazing

Northwood - HA6

Enquiry from: S

Start Date: Immediate

Looking at various options 2+ windows Supply and install

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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 Northwood is:

£1,795

Window Installer job Window Installer cost in 2026
Double glazing in Northwood £988-£3,100
Upvc double glazing units only in Northwood £575-£900
Triple glazing in Northwood £988-£3,100
Aluminium windows in Northwood £1,373-£2,088
Wooden window in Northwood £3,750-£5,750
Aluminium windows supply only in Northwood £1,600-£2,500
Upvc or wood porch in Northwood £2,625-£4,025
Sash window in Northwood £1,138-£3,600
Glaziers in Northwood £57-£87
Secondary glazing in Northwood £988-£3,100
uPVC Single Window in Northwood £225-£345
Wooden sash windows in Northwood £3,750-£5,750
Wooden windows supply only in Northwood £2,760-£4,140
Aluminium repair in Northwood £240-£360
Window repair in Northwood £268-£402
Wooden window repair in Northwood £320-£480

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Window Installer FAQs

How long does it take to install one small double glazed window?

To install one small double glazed window, it will take anywhere between two hours and half a day. It will depend on whether one installer is fitting your window or two. And if you’re doing it yourself and don’t have any professional experience, it will take even longer.

When the window fitters arrive, they will make sure they’ve got safe access to the window and move any heavy furniture if they need to. Any good installer will lay down a dust sheet, but it’s a good idea to check that they’ve got one laid down before they start.

The first step any window installer will take is to double check the measurements of the new frame against your existing one. Hopefully it should match up, so then they’ll take the old window out. Then, they’ll insert the new frame into the aperture and bolt it into the concrete. They'll check it with a spirit level to ensure it’s even before moving onto the glass sealed unit.

The installer will place the glass into the aperture, then fit the beads to secure the glass in the frame. They’ll then use silicone and trim on the inside and outside to ensure the window looks perfect. You won’t be able to see where they’ve used sealants or trims because they’ll colour match them so it’s not noticeable. Then, they’ll tidy up all of their tools and the working area and let you know what needs to be done in terms of proving that the window meets building regulations. Most good installers are registered with a self-certification scheme, so will be able to issue a certification once the work is complete.

Will a new double glazed window look different to existing ones?

It depends on a few factors whether a new double glazed window will look different to existing ones. If your existing windows are very old, perhaps 10 years or more, then it’s likely that there will be some small differences.

The first thing to remember is that your double glazing is exposed to the elements as soon as it’s installed. So over time, unless you’re very good at cleaning and maintaining your windows, they’re likely to look a bit dirty. Window frames that are south-facing may also become slightly discoloured from the sun, so if you install a new window right next to it you might notice a difference.

Also, there have been lots of technical advances in windows over the years. If your existing windows are significantly older, you might notice a difference in the handles on openers, and if your existing windows were installed before 2010 they might not have trickle vents, which is an extra strip on the inside of your window to keep air flowing through your home. While it’s not a legal requirement for replacement windows to have trickle vents if the original one didn’t, it’s a good idea to have them installed as they help prevent condensation and mould.

The only truly noticeably different elements to a new double glazed window compared with existing ones are likely to be on the inside, which might not be a problem for you if you only have one window in a room. However, if you know the brand of your existing windows, you can ask your window installer if they can source the same ones. Even if they’ve been updated slightly, the difference should be minimal.

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 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 much does double glazed windows cost?

Are you looking to replace your old window for a new double glazed window and wondering what it’s going to be the cost? Well, the double glazed windows market is a very competitive one in the UK with varying prices across the country. Therefore, if you shop around you’re most likely to find something that’ll fit your budget both products and quality wise.

As you would have expected, the more windows you required the more money you are going to spend. However, the cost per window is likely going to be lower depending on the number of windows you purchase. Several double glazed windows come with a 10 year warranty but it’s advisable to also obtain a solid workmanship warranty which provides coverage for any potential problems for a good period of time upon installation.

To determine the cost of double glazed windows, there are so many things to put into consideration that just the primary dimensions of the window itself. Other factors that works to decrease or increase the cost of the project includes the frames’ quality as well as the material used. For example hardwood can be quite high priced when compared to uPVC.

The number of opening windows within the frame can also play a huge role in the cost of the windows as well as the type of the glass. The cost of a double glazing window usually ranges between £100 to £3,200 per window, depending on the available options.

To have a more accurate estimate of the cost of a double glazing window, you’ll need a obtain a survey from a double glazing installer who can take into account any possible complications that may arise when installing your windows while also giving an advise on the most suitable window style for your property.

What happens to my old windows?

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.

how much are new windows?

Are you about to replace your old windows and wondering just how much it’ll cost to have a new one fitted? If yes, then you’ve come to the right place! The question is a very straight forward one, however a direct answer can not be provided as determining window prices for a replacement project can be a very tricky challenge. With a plethora of influencing factors that can play a key role in the price of both materials and labour to be used, it could be extremely hard for a window installer to provide a cost estimate without paying you a visit beforehand.

The factors that can go a long way in determining the price of your new window includes the size of the window, frame material, style chosen, your location, rates charged by the window installer (these rates can be different from an installer to an installer, so it’ll probably be in your best interest to compare quotes to identify the most competitive price) as well as the type of glass required.

Generally, for a small flat featuring four windows, the average cost for new windows would be between the range of £2,100 to £2,300. This range provided covers the cost of double glazed uPVC casement windows as well as the installation price. In the same tone, a home with up to 8 windows will have an average cost for window replacement between the range of £4,400 to £4,600, wile also taking into account the installation price. Whereas a house comprising 10 windows could begin at an average cost of window replacement between the the range of £5,200 to £5,500, and a 15 window home will be between the range of £8,400 to £8,600. it should be noted that the aforementioned figures only include the standard number of windows with a uPVC frame and the installation cost.

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!

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