Using a Fensa registered installer isn’t compulsory but it helps to protect you from cowboys and rogue traders. It will also make life a whole lot easier in regards to Building Regulations. Replacement windows must meet a certain energy efficiency rating and once fitted you need a certificate to show your installation complies. By using a Fensa registered company they’ll issue this certificate, otherwise you’ll need the council to look at the new windows.
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
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.
Whether you’re hiring a professional to replace your double glazing or are considering DIY, it’s a good idea to know how to fit a double glazed window.
You need to start by assembling your window. Fit any handles and cut the outer sill to size by measuring the outer wall depth. Then, screw the outer sill to the window frame and attach the frame fixers. Screw the ventilation grilles onto the inside of the frame and fix the vents on.
Next, you need put the window into place, using spacers to wedge it in. Use a spirit level to check it’s level horizontally and vertically, adding extra spacers if needed. Then, fix the frame into place at each fixing point using a drill, wall plugs and screws. Measure and cut the interior sill, and check that it’s level, adding spacers if needed. Then fix it using screws, masonry nails or adhesive.
Finally, fill in any wide gaps with foam filler and small gaps with sealant. You can get interior and exterior trims to cover these up, making your window look neat and professional.
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.
No matter how big or small a building is, it can only be as good as it’s foundation - and that’s a fact! It all starts from the footing and when it isn’t deep enough, unlike badly installed gutters or gapped hardwood flooring, can make the whole building collapse to the ground. Just like any code recommendations, the depth of the footings of your porch is a parameter that must be complied with and adjusted to suit your local code requirements.
As a rule of thumb, you should always dig below the frost line when excavating your footings. At this depth level, the moisture present in the soil will be frozen. Ultimately, this will help the ground to act as a barrier to insulate the soil below the footing from freezing during the cold months. As a result, in regions where the weather is almost always very cold the depth of your footings is expected to be at least 48 inches. But in areas featuring a warm climate, you may be allowed to install your footings on grade.
In addition, it’s compulsory that your footings must be installed at a minimum depth of 12 inches below unsettled soil. However, if you’re constructing the structure into a steep hill’s side or by the side of a retaining wall, it’s required that you maintain the least distance to grade both vertically and laterally. In the event whereby you need to achieve a good lateral barrier, you’ll need to have your foundation dug a lot deeper compared to if it’s on a flat surface. For a more accurate and updated information, you can consult your local building inspection department to get familiar with the requirements in your area.
Most window installers will be able to provide you with one double glazed window and fit it for you. If you’re replacing one double glazed window in your home, ask them to try and source the same windows that you already have or find one that’s very similar. Externally, you probably won’t be able to notice the difference, but if your existing windows are very old there may be some exterior discolouration and the locks and handles might look slightly different.
If you want one double glazed window so you can fit it yourself, there are lots of online companies that can supply you with one window. However, window fitting is a skilled trade and you might want to consider whether you have the right tools and experience to fit it yourself. Of course, you’ll save money on installation costs, but if something goes wrong, you might end up shelling out to get it fixed anyway.
The other thing to consider is that any replacement windows need to be certified that they meet Building Regulations. If you fit the double glazed window yourself, you’ll need to apply to your local council building control officer to get a certificate that confirms that you fitted the window within the regulations. You’ll have to pay a fee for this, and it will be even more expensive if Building Control say that the window hasn’t been fitted within the regulations and you have to start again.
The alternative is to ask a reputable window installer that is registered with a self-certification scheme, like FENSA, to install the window. That means that they can self-certify that the window meets building regulations once they’ve finished the installation.
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.
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.
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
London - E1
Enquiry from: Zaki T
Start Date: Immediate
Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.
Windows | uPVC
Halifax - HX2
Enquiry from: Arshad M
Start Date: Immediate
Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest via phone at 16:03 2+ windows Supply and install Please call to discuss o...
Windows | uPVC
Dudley - DY3
Enquiry from: Adam 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
Caersws, Llandinam - SY17
Enquiry from: Chris 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 Caersws, Llandinam area 2+ windows Supply and install Please...
Windows | uPVC
Leicester - LE2
Enquiry from: Sofia A
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
Huddersfield - HD2
Enquiry from: Mohammed S
Start Date: Immediate
Customer in Huddersfield area made an enquiry for double glazing online. 2+ windows Supply and install Please call to arrange an appointment to discuss options
Windows | uPVC
Leicester - LE4
Enquiry from: Pravin L
Start Date: Immediate
Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.
Windows | uPVC
Wolverhampton - WV3
Enquiry from: Ashley L
Start Date: Immediate
Customer living in Wolverhampton 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 instal...
Windows | uPVC
Walsall - WS4
Enquiry from: John C
Start Date: Immediate
Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest 2+ windows Supply and install Please call to discuss options and arrange ...
Windows | uPVC
Bradford - BD3
Enquiry from: Shameem A
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
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 | uPVC | Repair
Carnoustie - DD7
Enquiry from: Ron C
Start Date: Immediate
broken catch in double glazed window
Windows | uPVC
Batley - WF17
Enquiry from: Mohmed L
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 - BD6
Enquiry from: Nazia H
Start Date: Immediate
Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest 2+ windows Supply and install Please call to discuss options and arrange ...
Building Work | Porch
Leicester - LE3
Enquiry from: Sony J
Start Date: Immediate
porch is required for front
Windows | uPVC
Halifax - HX2
Enquiry from: Karen A
Start Date: Immediate
Customer made an online enquiry for replacement windows via one of our websites. Confirmed via /phone. 2+ windows Supply and install Please call to arrange an appointment to quote.
Windows | Aluminium | Repair
Blairgowrie - PH10
Enquiry from: Howard M
Start Date: Immediate
We have 2 sets of aluminium double glazed sliding patio doors from the 1980s which need an overhaul. The openings easure 3.6m x2.1m and 3.1m x 2.1m. They work fine but are from a pre Argon era I thi...
Windows | uPVC
London - SW19
Enquiry from: Angela T
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 London area 2+ windows Supply and install Please call ...
Windows | uPVC
Bradford - BD12
Enquiry from: Jacqueline B
Start Date: Immediate
Customer made an enquiry for replacement double glazing via one of our websites. Looking at various options Confirmed interest, SMS at 10:53 2+ windows Supply and install Please call to discuss option...
Windows | uPVC
Dungannon - BT71
Enquiry from: Carla J
Start Date: Immediate
What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - --. What material do you require, UPVC? - -. What colour do you want them to be? - -. D...
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