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Verified Pro
At Meridian Homes, we take pride in being a family-owned company with over 43 years of experience. Our passion and dedicat...
Verified Pro

Concept Home Improvements

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

Greenland Home Improvement

0 review(s)
Offers services in CHELMSFORD
Greenland Home Improvement has more than 40 years of experience supplying and fitting quality windows and doors for homeow...
Verified Pro

Mgr Plastering & Building

0 review(s)
Offers services in CHELMSFORD
All aspects of building work and refurbishment, using quality tradesmen. We look after 4 Churches in the area and have an ...

Recent Window Installer Enquiries

21 Oct

uPVC Double Glazing

Harlow - CM17

Enquiry from: John P

Start Date: Immediate

5 new windows and possibly a front door

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14 Aug

uPVC Double Glazing

Romford - RM3

Enquiry from: Kelly F

Start Date: Immediate

2+ windows Supply and install

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03 Aug

uPVC Double Glazing

Basildon - SS16

Enquiry from: Simon J

Start Date: Immediate

I need help deciding which windows need replacing

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29 Jul

uPVC Double Glazing

Romford - RM3

Enquiry from: Matteo M

Start Date: Immediate

Looking at various options 2+ windows Supply and install

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22 Jul

Replacement Glass Only

Chelmsford - CM1

Enquiry from: Roger L

Start Date: Immediate

Replace double glazed glass panels

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14 Jul

uPVC Double Glazing

Braintree - CM77

Enquiry from: Gary J

Start Date: Immediate

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13 Jul

uPVC Double Glazing

Maldon - CM9

Enquiry from: John C

Start Date: Immediate

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13 Jul

uPVC Double Glazing

Witham - CM8

Enquiry from: Marie F

Start Date: Immediate

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18 Apr

Window Repair

Harlow - CM17

Enquiry from: Nance S

Start Date: Immediate

A replacement motor to a solar velux

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13 Apr

uPVC Double Glazing

Basildon - SS14

Enquiry from: Bianca B

Start Date: Immediate

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24 Mar

uPVC Double Glazing

Basildon - SS14

Enquiry from: Monday J

Start Date: Immediate

Considering a range of options 2+ windows Supply and install

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04 Dec

Porches

Basildon - SS14

Enquiry from: Eli L

Start Date: Immediate

Are you the home owner of that property? - -. Are you replacing an existing porch or is this a new build? - -. What material do you require, UPVC? - -. What colour do you want it to be? - -. I assume

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25 Nov

uPVC Double Glazing

Braintree - CM7

Enquiry from: Susan W

Start Date: Immediate

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16 Oct

uPVC Double Glazing

Romford - RM3

Enquiry from: Dee W

Start Date: Immediate

Replacement of double glazed windows and doors

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01 Sep

Replacement Glass Only

Chelmsford - CM3

Enquiry from: Julie H

Start Date: Immediate

Replacement glass panel for a back door

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25 Aug

uPVC Double Glazing

Chelmsford - CM1

Enquiry from: Kanesar A

Start Date: Immediate

2+ windows Supply and install

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10 Feb

uPVC Double Glazing

Chelmsford - CM3

Enquiry from: Stephen J

Start Date: Immediate

What best describes your living situation? How many windows are you considering replacing? - 2. What material do you require, UPVC? - upvc. What colour do you want them to be? - white. Do you require

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16 Jan

uPVC Double Glazing

Chelmsford - CM2

Enquiry from: Janice P

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 do

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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 Chelmsford is:

£2,082

Window Installer job Window Installer cost in 2026
Double glazing in Chelmsford £1,500-£5,000
Upvc double glazing units only in Chelmsford £800-£1,200
Triple glazing in Chelmsford £1,500-£5,000
Aluminium windows in Chelmsford £1,875-£2,875
Wooden window in Chelmsford £3,750-£5,750
Aluminium windows supply only in Chelmsford £2,600-£3,900
Upvc or wood porch in Chelmsford £2,625-£4,025
Sash window in Chelmsford £1,800-£6,000
Glaziers in Chelmsford £57-£87
Secondary glazing in Chelmsford £1,500-£5,000
uPVC Single Window in Chelmsford £225-£345
Wooden sash windows in Chelmsford £3,750-£5,750
Wooden windows supply only in Chelmsford £2,760-£4,140
Aluminium repair in Chelmsford £240-£360
Window repair in Chelmsford £268-£402
Wooden window repair in Chelmsford £320-£480

Related Window Installer searches in Chelmsford

Window Installer FAQs

Why are double glazed windows better than single glazed?

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.

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.

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!
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.

Should I use a Fensa registered installer?

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.

How long do aluminium windows last?

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.

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.

How does Aluminium double glazing work?

Double glazing is made up of two layers of glass, with a layer of argon gas in between. This type of glass can be used in Aluminium windows. The gas is a poor insulator, helping heat to stay in your home and making your windows more efficient. As well as trapping the argon gas, the second layer of glass reduces the amount of noise that enters your property, and helps to make your windows stronger and more secure.

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