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Verified Pro

Concept Home Improvements

1 review(s)
Offers services in MIDDLESEX
Concept Windows & Conservatories is a family run company. Established in 1987 we specialise in the installation of high qu...
Verified Pro

Jassi Builders

2 review(s)
Offers services in MIDDLESEX
Hi Jassi Builders LTD here, I am a specialist in planning, designing and building control services. I make sure that I hav...
Verified Pro
All accesss solutions with over 20 years experience fast and friendly service we aim to please !!!
Verified Pro

StormSeal uPVC Windows

0 review(s)
Offers services in MIDDLESEX
StormSeal offers a personal and carefully managed service for every customer, helping homeowners improve their property wi...
Verified Pro

T&Q; / MASTER HANDYMAN

0 review(s)
Offers services in MIDDLESEX
T&Q / Master Handyman Ltd is a reliable and experienced construction and handyman company providing high-quality services ...

Recent Window Installer Enquiries

07 Jul

Windows | uPVC

Harrow - HA3

Enquiry from: Kalpesh N

Start Date: Immediate

Call anytime. Number of windows: 7 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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23 Jun

Windows | uPVC

Southall - UB1

Enquiry from: Amir S

Start Date: Immediate

Customer living in Southall 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...

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23 Jun

Windows | uPVC

Greenford - UB6

Enquiry from: Hugh R

Start Date: Immediate

Call anytime. Number of windows: 7 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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19 May

Building Work | Porch

West Drayton - UB7

Enquiry from: Biness B

Start Date: Immediate

wish to build a porch. I wish to add a small porch in front of the entrance to the house

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12 May

Windows | uPVC

Wembley - HA0

Enquiry from: Azra K

Start Date: Immediate

Call anytime. Number of windows: 6 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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11 May

Windows | uPVC

Harrow - HA3

Enquiry from: Salah A

Start Date: Immediate

Customer in Harrow area made an enquiry for double glazing online. 2+ windows Supply and install Please call to arrange an appointment to discuss options

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06 May

Windows | uPVC

Southall - UB2

Enquiry from: Saeed R

Start Date: Immediate

Call anytime. Number of windows: 7 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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01 May

Windows | uPVC

Edgware - HA8

Enquiry from: Adrienne 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 ...

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28 Apr

Windows | uPVC

Southall - UB2

Enquiry from: Prya K

Start Date: Immediate

Customer is looking to replace their windows. They are still considering options so please call to discuss what would be best for their home. Homeowner lives in Southall area 2+ windows Supply and ins...

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16 Feb

Windows | uPVC

Brentford - TW8

Enquiry from: Barbara D

Start Date: Immediate

New front door fitted and new windows

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24 Jan

Windows | uPVC

Feltham - TW14

Enquiry from: Maureen J

Start Date: Immediate

Call anytime. Number of windows: 5 Quote requested on windows, in PVCu, to be supplied and fitted.

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16 Jan

Windows | uPVC

Edgware - HA8

Enquiry from: Monika B

Start Date: Immediate

Call any time. Number of windows: 5 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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15 Jan

Windows | uPVC

Isleworth - TW7

Enquiry from: Seetah B

Start Date: Immediate

what best describes your living situation? - -. how many windows are you considering replacing? - -. what material do you require, upvc? - --. what colour do you want them to be? - --. do you require ...

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15 Jan

Windows | Glazing

Brentford - TW8

Enquiry from: Emily M

Start Date: Immediate

We have some condensation that has appeared between glass panes in one of the bedroom windows and would like someone to advise on what can be done about this.

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12 Jan

Windows | uPVC

Harrow - HA3

Enquiry from: Seema S

Start Date: Immediate

What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - 3. What material do you require, UPVC? - UPVC. What colour do you want them to be? - Wh...

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09 Jan

Windows | uPVC

Harrow - HA3

Enquiry from: Martine W

Start Date: Immediate

Call anytime. Number of windows: 7 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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19 Dec

Windows | uPVC

Harrow - HA3

Enquiry from: Beejal K

Start Date: Immediate

Call anytime. Number of windows: 6 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

Post a similar request >

15 Dec

Windows | uPVC

Greenford - UB6

Enquiry from: Sasha F

Start Date: Immediate

Call any time. Number of windows: 6 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

Post a similar request >

11 Dec

Windows | uPVC | Single Window

Twickenham - TW1

Enquiry from: Maria R

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...

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11 Dec

Windows | uPVC | Single Window

West Drayton - UB7

Enquiry from: Brian W

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...

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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 Middlesex is:

£1,795

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

Related Window Installer searches in Middlesex

Window Installer FAQs

What is the Window Energy Rating (WER)?

The energy efficiency of windows is measured using ratings, varying from A, the most efficient, to G, the least efficient. This scheme is run by the British Fenestration Council (BFRC). To comply with Building Regulations you’ll need windows of energy efficiency at least level C.

How long do double glazed sealed units last?
When it comes to how long double glazed sealed units (the glass inside the window) last, a lot of it is down to the quality of the glass and the environment that your windows sit in. It’s not uncommon for your window frames themselves (especially if they are uPVC) to last longer than your sealed units. Sealed units are called that because they’re two panes of glass sealed together with an air gap in between. They use what’s called a ‘perimeter seal’ to protect the air gap between the panes, and is usually made of butyl mastic which retains a desiccant within a perforated metallic spacer bar. The desiccant’s job is to absorb any moisture which finds its way into the air gap to stop your window from misting up on the inside. When a sealed unit fails, or is ‘blown’, it’s usually because moisture builds up around the seal and causes it to fail. Sealed units won’t last forever, so you will eventually end up with condensation inside the panes of your double glazing, but in an ideal environment your double glazed sealed units could last up to 30 years, with some manufacturers claiming as long as 40 years. But they do require a bit of maintenance and the position of your windows will also make a difference as to how long they last. There are a few things that determine how long a sealed unit will last:
  • Climate - If your window faces south, it will be subject to direct sunlight for a lot of the day. This tends to cause the sealed unit to fail more quickly – a south-facing window may last between 10-25 years. This is because the spacer bars will twist as the temperature rises and causes the adhesive holding them together to eventually fail.
  • Moisture - Windows in kitchens and bathrooms tend to fail more quickly because they come into contact with moisture more often. For example, if water gets on your windowsill when you shower, the seal around the glass will come loose more quickly if it’s constantly wet.
When you replace the sealed units in your windows or get completely new double glazing, make sure you choose an installer that uses quality products and will take all the steps to ensure that your sealed units are kept away from moisture as much as possible.
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.

Should I get all my windows replaced at once?

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.

What is the Window Energy Rating (WER)?

The energy efficiency of windows is measured using ratings, varying from A, the most efficient, to G, the least efficient. This scheme is run by the British Fenestration Council (BFRC). To comply with Building Regulations you’ll need windows of energy efficiency at least level C.

What are the other double glazing options?

Double glazing frames don’t just have to come in uPVC and are available in other materials including aluminium and wood too. Wooden or timber windows are more suited to properties with a traditional look and are often the frame of choice for listed buildings and homes in conservation areas. When properly maintained wooden windows can last well for years but can be up to three times more expensive than uPVC.Aluminium is the strongest and most durable option. As a metal it is highly resistant to the UK’s changing weather conditions and won’t rust, warp, crack or peel. Aluminium offers a modern appeal and is available in a range of colours.

How can I find out how energy efficient my new windows will be?

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.

Do I need to stay at home while my windows are being replaced?

Most installers will not need you to be at home while they are fitting your windows. It is a good idea to be present though, just in case they have any questions for you and perhaps for your own peace of mind. If you cannot be there, you will need to arrange access to the property and/or agree securing the property at the end of the day.

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