As well as keeping your home warmer and reducing noise, you’ll notice a saving on your energy bills from installing double glazing. If you install A++ rated windows in your home after having single glazing, you could save up to £120 year on your energy bills. The Energy Saving Trust has more information.
Find a Window Installer you can trust near you.
Choose from 2055 Window Installers, all rated by people like you.
Over 1609 reviews & an average rating of 4.4/5 stars, you'll find the right pro
Enter your location to refine your search
Choose and shortlist
Use the shortlist button to select up to 4 tradespeople, enter your project details and press send
Keen to get on with the job?
Get up to 4 quotes from local Window Installers near you




Britelite Windows




JM Fencing and Landscaping



Conservatories & Windows Direct




WFS ANGLIA



McFarlane Homes




Crystal Windows and Doors
Find a local Window Installer you can trust...
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 adviceThe average price
of a Window Installer is:
£2,071
Window Installer job | Window Installer cost in 2025 |
---|---|
Double glazing | £1,211-£5,921 |
Upvc double glazing units only | £550-£1,267 |
Triple glazing | £1,211-£5,921 |
Aluminium windows | £2,258-£4,135 |
Wooden window | £1,450-£2,634 |
Aluminium windows supply only | £948-£1,763 |
Upvc or wood porch | £3,688-£7,005 |
Sash window | £1,236-£6,005 |
Glaziers | £92-£452 |
Secondary glazing | £1,211-£5,921 |
uPVC Single Window | £251-£783 |
Wooden sash windows | £1,450-£2,634 |
Wooden windows supply only | £1,237-£3,247 |
Aluminium repair | £240-£360 |
Window repair | £156-£384 |
Wooden window repair | £190-£577 |
Window Installer service qualifications and accreditations
Window Installers credentials as well as accreditation's: Getting the right training and mastering exactly how to do your profession is key for any tradesperson including Window Installer s. View the online profile of each Window Installer you are considering to see what accreditation they hold and also what trade associations they belong to. Some trade associations that Window Installers may likely be a member of include: FENSA, Glass and Glazing Federation, Federation of Master Builders. Equally Window Installers may also have the following accreditations: Elecsa, Certass, SAFEcontractorInsurance for Window Installers: Any person that works on your house, including Window Installers, should really have valid public liability insurance, which protects you the homeowner and likewise the Window Installer should regrettably anything happen while they are doing the work. Planning permission for Window Installers A number of the tasks that a Window Installer will provide for you will not require planning permission unless its a listed building. Definitely discuss with the Window Installer if planning permission would be needed for the project you are doing, they can advise the steps that need to be taken.
Services offered by Window Installer
What solutions do Window Installers normally offer? There are a variety of work you could certainly employ a Window Installer for, as well as several of the most usual tasks that Window Installer are asked to accomplish consist of:Window Installer FAQs
How long your aluminium windows will last depends on their quality. They should last 20 -30 years at least, but have been known to stay in good condition for up to 45 years. This is considerably longer than uPVC and wooden double glazing.
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.
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.
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.
A porch is a small and low structure (with a roof) located at the main entrance of a building or house. It’s typically without a window (although newer variations may come with one) and can either be screened-in or enclosed to prevent unwanted access from insects and extremes in weather. In addition, some homes may have a three-season porch or sun porch. This may be situated by the side of the house and covered by the roof overhang - they’re usually screened in to offer good access all year round.
Generally, porches serve a wide range of purposes. They include:
• Provision of an outdoor living space to relax during the summer months
• It’s an informal extension of the the living room.
• It serves as a great place for social gatherings especially in small towns.
• You can take off your dirty shoes and dry a dripping wet dog before entering into your living room.
• It can be incorporated for relaxation purposes and watching street activities.
• It can serve as a reception area for guests.
• It can also be used for outdoor storage.
Pros & Cons Of A Porch
Pros
• Due to the fact that they’re covered, porches may require little maintenance practices.
• It can go a long way to improves the curb appeal of your property.
• It protects against the extremes of the weather.
• It can be constructed using a wide range of materials.
Cons
• It does not improve the use of the property
• It can be quite expensive to install depending of the material required as well as size of the porch.
• It does not add to the value of the home unlike several other home improvement projects
• It may not be safe to be used by a child or pet.
- Using a rubber mallet and a strong pallet knife, remove the beading around the window. You might think they’re part of the frame, but they’re actually separate on the inside of the frame and can be taken out by using pallet knife to prize them out. Start with one of the longest beads first and leave the top bead until last.
- Give the glass a little tap to loosen it if it doesn’t come out straight away, then the whole unit should slide out easily. Just make sure it falls towards you and not back out onto the ground below!
- Clear any debris that has found its way into the frame with a brush. Add spacers at the bottom of the frame – these could be pieces of plastic.
- Get your new sealed unit (make sure you measure the glass before you buy one so you know which size to get) and carefully take it out of the packaging. Look for the British Standard mark – that shows you the bottom of the glass.
- Lift the glass into the frame, starting with the bottom first, and make sure that it fits square in the frame before taking the spacers out.
- Use a little washing up liquid to spread along the beads to make it easier when you slide them back into the frame. If they simply push and clip back in, you can use something like a block of wood to help you push them in correctly. Put them back in reverse order to how you took them out.
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.
Window Installer help and advice
Our reviews
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 your area.
Pick the right pro for you
Compare prices, customer reviews and services, and hire the right Window Installer.
Are you a Window Installer?
View our open Window Installer jobs near you
Join todayRecent Window Installer Enquiries
Windows | uPVC
Whitehaven - CA28
Enquiry from: James I
Start Date: Immediate
Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.
Windows | uPVC
Chesterfield - S43
Enquiry from: Donna M
Start Date: Immediate
Customer living in Chesterfield area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via Homeowner needs advice on options 2+ windows Supply and install...
Windows | uPVC
Ilkeston - DE7
Enquiry from: Slawomir S
Start Date: Immediate
Customer living in Ilkeston area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via Homeowner needs advice on options 2+ windows Supply and install Ple...
Windows | uPVC
Sheffield - S6
Enquiry from: Rachael M
Start Date: Immediate
Customer living in Sheffield area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via / SMS at 19:25/ email at 19:25 Homeowner needs advice on options 2+...
Windows | uPVC
Preston - PR1
Enquiry from: Dee J
Start Date: Immediate
Customer made an online enquiry for replacement windows via one of our websites. Confirmed via SMS/. 2+ windows Supply and install Please call to arrange an appointment to quote.
Windows | uPVC
Rowland's Castle - PO9
Enquiry from: Gerry H
Start Date: Immediate
Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.
Windows | uPVC
Liverpool - L23
Enquiry from: Debbie J
Start Date: Immediate
Customer made an online enquiry for new double glazing. Homeowner confirmed interest via Considering a range of options Homeowner lives in Liverpool area 2+ windows Supply and install Please call to ...
Windows | uPVC
King's Lynn - PE32
Enquiry from: Tony G
Start Date: Immediate
Customer made an online enquiry for quotes for double glazing replacement via one of our websites. Customer lives in King's Lynn area and is considering a range of options for their home. 2+ windows S...
Windows | uPVC
Cardiff - CF24
Enquiry from: Naseem H
Start Date: Immediate
Customer made an online enquiry for replacement windows via one of our websites. Confirmed via SMS/. 2+ windows Supply and install Please call to arrange an appointment to quote.
Windows | uPVC
London - E6
Enquiry from: Ihsan I
Start Date: Immediate
Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.
Windows | Glazing
Retford - DN22
Enquiry from: Jasmine B
Start Date: Immediate
are you the property owner: owner of the property property type: semi detached what level of service do you require: repair/glass only how many windows do you need: 2-3 windows i am looking for quote...
Windows | uPVC
London - W4
Enquiry from: Ben B
Start Date: Immediate
Customer living in London area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via phone at 09:02 Homeowner needs advice on options 2+ windows Supply and...
Windows | uPVC
Huddersfield - HD5
Enquiry from: Caroline R
Start Date: Immediate
Customer made an online enquiry for new double glazing. Homeowner confirmed interest via email/SMS/ Considering a range of options Homeowner lives in Huddersfield area 2+ windows Supply and install Pl...
Windows | uPVC
Northwich - CW9
Enquiry from: Kyle R
Start Date: Immediate
Customer made an online enquiry for quotes for double glazing replacement via one of our websites. Customer lives in Northwich area and is considering a range of options for their home. 2+ windows Sup...
Windows | uPVC
Doncaster - DN1
Enquiry from: Lorraine P
Start Date: Immediate
Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.
Windows | uPVC
Bradford - BD2
Enquiry from: Pedro 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 Bradford area 2+ windows Supply and install Please call to a...
Windows | uPVC
Gainsborough - DN21
Enquiry from: Karen H
Start Date: Immediate
are you the property owner: tenant (with permission) what level of service do you require: supply and installation of full unit property type: terrace how many windows do you need: 2-3 windows do you...
Windows | uPVC
Stourbridge - DY9
Enquiry from: Mohammad T
Start Date: Immediate
Customer is looking to have windows installed. They are unsure what options to go for so would like to discuss directly multiple windows to be Supplied and installed Please call to quote.
Windows | uPVC
Bradford - BD2
Enquiry from: Rahima A
Start Date: Immediate
Customer in Bradford area made an enquiry for double glazing online. 2+ windows Supply and install Please call to arrange an appointment to discuss options
Windows | uPVC
Huddersfield - HD3
Enquiry from: Afsar A
Start Date: Immediate
Customer made an online enquiry for replacement windows via one of our websites. Confirmed via . 2+ windows Supply and install Please call to arrange an appointment to quote.
Window Installer in your region
- Window Installer Scotland
- Window Installer Northern Ireland
- Window Installer North East
- Window Installer North West
- Window Installer East Midlands
- Window Installer West Midlands
- Window Installer Wales
- Window Installer South West
- Window Installer South East
- Window Installer Greater London
- Window Installer Isle of Man
- Window Installer Channel Islands
- Window Installer Yorkshire & Humberside
- Window Installer East Anglia