Find a Window Installer you can trust in Chelmsford.

Choose from 107 Window Installers, all rated by people like you.

Over 270 reviews & an average rating of 4.4/5 stars, you'll find the right pro

Choose and shortlist

Use the shortlist button to select up to 4 tradespeople, enter your project details and press send

or

Keen to get on with the job?

Get up to 4 quotes from local Window Installers near you

View Shortlist
Verified ProOver 50 Reviews

Britelite Windows

156 review(s)
Offers services in CHELMSFORD
We fit high quality double glazing and the next generation triple glazing, using only the best materials. Fully guaranteed...
Verified ProOver 50 Reviews

Crystal Windows and Doors

64 review(s)
Offers services in CHELMSFORD
Crystal is a uPVC Windows and Double Glazing manufacturer and installer. We have built a strong reputation in London and t...
Verified Pro

Radiant Design & Build

1 review(s)
Offers services in CHELMSFORD
Radiant Design & Build has been established as a sister company to both Radiant Windows and Universal Aluminium. Concentra...
Verified Pro

DGN Building

0 review(s)
Offers services in CHELMSFORD
All construction solutions
Verified Pro

MCC Service London

0 review(s)
Offers services in CHELMSFORD
MCC Services London Ltd. is a specialist building company located in North London and covering all of London and the surro...

Recent Window Installer Enquiries

10 Feb

Windows | uPVC

Chelmsford - CM3

Enquiry from: Stephen J

Start Date: Immediate

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

Post a similar request >

16 Jan

Windows | uPVC

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...

Post a similar request >

18 Nov

Windows | uPVC

Chelmsford - CM1

Enquiry from: Allu J

Start Date: Immediate

Customer made an online enquiry for quotes for double glazing replacement via one of our websites. Customer lives in Chelmsford area and is considering a range of options for their home. 2+ window...

Post a similar request >

16 Sep

Windows | uPVC | Single Window

Chelmsford - CM1

Enquiry from: Maria A

Start Date: Immediate

are you the home owner of that property? - how many windows are you considering replacing? - what material do you require, upvc? - what colour do you want them to be? - do you require doors if so how ...

Post a similar request >

07 Mar

Windows | uPVC | Single Window

Chelmsford - CM1

Enquiry from: Margaret P

Start Date: Immediate

Are you the home owner of that property? - How many windows are you considering replacing? - What material do you require, UPVC? - What colour do you want them to be? - I assume you require them to be...

Post a similar request >

27 Feb

Windows | uPVC

Chelmsford - CM2

Enquiry from: Janice P

Start Date: Immediate

Are you the home owner of that property? yes How many windows are you considering replacing? 7 What material do you require, UPVC? upvc What colour do you want them to be? unsure Do you require doors ...

Post a similar request >

09 Jan

Windows | Aluminium

Chelmsford - CM1

Enquiry from: Mia A

Start Date: Immediate

Wooden window repair Lead Wooden window repair Lead Wooden window repair Lead Wooden window repair Lead Wooden window repair Lead Wooden window repair Lead

Step by step please 1 day at a time.

Post a similar request >

10 Oct

Windows | Glazing

Chelmsford - CM1

Enquiry from: Naomi D

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? white i assume you require t...

Post a similar request >

13 Jun

Windows | uPVC | Single Window

Chelmsford - CM3

Enquiry from: Anna Frank W

Start Date: Immediate

Sell 1 Times 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? - I assume you...

Post a similar request >

24 May

Building Work | Porch

Chelmsford - CM1

Enquiry from: Simon Y

Start Date: Immediate

sell 1 times are you the home owner of that property? yes are you replacing an existing porch or is this a new build? new build - has 1 side already there - wants porch fully enclosed what material d...

Post a similar request >

14 Mar

Windows | uPVC

Chelmsford - CM2

Enquiry from: Nigel D

Start Date: Immediate

Sell 1 Times Are you the home owner of that property? yes How many windows are you considering replacing? 1 What material do you require, UPVC? wood What colour do you want them to be? - Do you requi...

Post a similar request >

08 Mar

Windows | uPVC

Chelmsford - CM2

Enquiry from: Sam W

Start Date: Immediate

Sell 1 Times Are you the home owner of that property? YES How many windows are you considering replacing? 4 What material do you require, UPVC? upvc What colour do you want them to be? unsure Do you ...

Post a similar request >

01 Feb

Windows | uPVC

Chelmsford - CM1

Enquiry from: Debbie L

Start Date: Immediate

new upvc windows - 1x bay window, 3x bedrooms, 1x kitchen and 1x bathroom. i am looking for quotes for 4+ windows are you the property owner: owner of the property what level of service do you requi...

Post a similar request >

16 Jan

Windows | uPVC

Chelmsford - CM2

Enquiry from: Marlene I

Start Date: Immediate

*homeowner 2 windows 1 door upvc supplied and fitted please call to appoint

Post a similar request >

09 Jan

Windows | uPVC

Chelmsford - CM2

Enquiry from: Robert K

Start Date: Immediate

Composite Front Door & Frame

Post a similar request >

22 Dec

Windows | uPVC | Repair

Chelmsford - CM3

Enquiry from: Ewa S

Start Date: Immediate

problem with two small rectangular windows. one shuts but there is a gap at the top letting the cold in. the other window doesn’t even close, the metal rail is broken and the handle doesn’t work. ...

Post a similar request >

21 Dec

Windows | uPVC | Single Window

Chelmsford - CM2

Enquiry from: Tony H

Start Date: Immediate

new front door to replace existing one i am looking for quotes for 1 window are you the property owner: owner of the property what level of service do you require: supply and installation of full un...

Post a similar request >

14 Nov

Windows | uPVC

Chelmsford - CM1

Enquiry from: Mary K

Start Date: Immediate

uPVC back door, white frosted half glazed with High Security Multi-Point Locking System, installed

Post a similar request >

07 Nov

Windows | uPVC

Chelmsford - CM1

Enquiry from: Steven M

Start Date: Immediate

customer in the chelmsford area made an enquiry a couple of projects including upvc double glazing.call anytime and arrange an appointment to discuss. below is some details about this project: are you...

Post a similar request >

07 Nov

Windows | Glazing

Chelmsford - CM1

Enquiry from: Steven M

Start Date: Immediate

secondary glazing for a single downstairs window 48.5cm x 76cm are you the property owner: owner of the property property type: semi detached how many units do you do you require: 1 window what level ...

Post a similar request >

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 advice

The average price
of a Window Installer in Chelmsford is:

£2,082

Window Installer job Window Installer cost in 2025
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

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.

How much is window repair?

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 to build a porch?

A front porch is a glorious addition that would be a blessing to have in any home. It gives you a good floor space to enjoy your neighbourhood as well as your surroundings in the cool atmosphere of the outside living space. The question however is, how do you build a porch? Constructing the structure can be a very challenging task but with proper guidance and lots of practice, you can also be a skilled porch builder. To protect your investment, it’s advisable to hire the services of a professional for help with your porch especially if you lack proper training and experience. This way, you’ll get to save time and money. This guide is prepared to give you some insight into the porch building process.

lAssess Your Location

• Consider the location before proceeding with the project. It’s essential to select a location that’ll reduce the sunlight coming in.

lPlan The Materials Required For Your Porch

• You’ll have to decide the type of porch you’ll be going for. For example, your porch can be built out of wood, composite decking or if it’s going to utilize some stone flooring, brick or even tile.

lBuild Your Porch Foundation

• Dig the foundations deep to ensure stability while also putting in mind any pipework or cabling

• Fit a damp proof course

• Add the subfloor - this can be concrete or timber

lStart To Lay The Brick And Floor

• Lay the bricks evenly up to the DPC level

• Lay the floor

• Add the flooring protection

• Once done, you can lay the bricks to the window level

• You can fit in a window sill if required before proceeding the brick and block work until it reaches the roof timber’s height

• Fit the linter when you get to the top of where the window will reach.

lConstruct The Roof

• Build a timber framework

• Fit a breathable roof membrane

• Install the roof battens and lay the roof tiles.

• Add gutters

Why aluminium windows?

Aluminium windows have a range of benefits that make them a great alternative to uPVC windows. Developments in technology have meant that modern aluminium windows now have the same energy efficiency levels as uPVC. Plus, their strength and flexibility make them a more attractive choice to many homeowners, particularly for more modern buildings.

Aluminium frames are typically much thinner than uPVC frames, allowing more light in and wider views. The metal can also be moulded to suit custom shapes, making it ideal for unusually shaped windows. Aluminium windows are available in lots of different colours, so can be designed to suit a wide range of interiors and exteriors.

how long does double glazing last?

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.

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.

How to remove a aluminium double glazed window?

Removing a double glazed window can be quite labour intensive. If you decide to try it yourself, make sure you give yourself plenty of time, and wear gloves and goggles.

Begin by unscrewing all opening windows at the hinges and removing them. Then take away the beading and putty around any fixed panes and take them out too.

Once you’ve removed all the glass, use a saw to put angled cuts in the frame, and a bar and hammer to remove it in sections. You should remove the sill if you’re going to replace that too.

Finally, cut through any screws holding the frame into place with a hacksaw.

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.

Window Installer help and advice

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 Chelmsford.

Pick the right pro for you

Compare prices, customer reviews and services, and hire the right Window Installer.

Are you a Window Installer in Chelmsford?

View our open Window Installer jobs near you

Join today
View Shortlist