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Verified ProOver 50 Reviews
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 HARWICH
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 HARWICH
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Recent Window Installer Enquiries

14 Sep

Windows | uPVC

Harwich - CO12

Enquiry from: Richard B

Start Date: Immediate

Repair to sealed units 4 units in number

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16 Jul

Windows | uPVC

Harwich - CO12

Enquiry from: Lyn B

Start Date: Immediate

Are you the home owner of that property? sole How many windows are you considering replacing? retired What material do you require, UPVC? UPVC What colour do you want them to be? white Do you require ...

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04 Dec

Windows | uPVC

Harwich - CO12

Enquiry from: Jonathan E

Start Date: Immediate

mr requested quotes for upvc double glazing from a window installer around harwich. they are considering a couple of projects at the moment.call anytime to arrange appointment to discuss. the informat...

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24 Nov

Windows | uPVC

Harwich - CO12

Enquiry from: Sue H

Start Date: Immediate

A new double glazed window in kitchen 6' x 3'

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03 Nov

Windows | uPVC

Harwich - CO12

Enquiry from: Glen B

Start Date: Immediate

I have had a door fitted by Safestyle, the work was not completed and the company has gone bust. Would you be able to quote me on completing the work please?

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23 Apr

Windows | uPVC

Harwich - CO12

Enquiry from: Tanya J

Start Date: Immediate

customer living in harwich area made an enquiry for double glazing quotes via one of our websites. customer confirmed interest via / sms at 08:17 homeowner needs advice on options 2+ windows supply a...

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10 Mar

Windows | uPVC

Harwich - CO12

Enquiry from: Luis W

Start Date: Immediate

Supply and fit two windows in the garage. The large window is 1.44cm wide and 89 cm height. The windows are located in a garage/outdoor building. I hope to hear from you soon Luis

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08 Nov

Windows | uPVC | Repair

Harwich - CO12

Enquiry from: Frances C

Start Date: Immediate

window unable completely closed are you the property owner: owner of the property property type: other what service are you looking for: other how many windows are involved: one what material is the w...

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17 May

Windows | uPVC

Harwich - CO12

Enquiry from: Jo P

Start Date: Less than one month

best time: any work type: upvc windows and doors are you the property owner: owner of the property what level of service do you require: supply and installation of full unit property type: detached ho...

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25 Feb

Windows | uPVC

Harwich - CO12

Enquiry from: Melissa M

Start Date: Less than one month

best time: any work type: upvc windows and doors are you the property owner: owner of the property what level of service do you require: supply and installation of full unit property type: terrace how...

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29 Oct

Windows | uPVC

Harwich - CO12

Enquiry from: Shaun W

Start Date: Immediate

Are you the home owner of that property? Yes How many windows are you considering replacing? 6 What material do you require, UPVC? UPVC What colour do you want them to be? Unsure Do you require doo...

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27 Jul

Windows | uPVC

Harwich - CO12

Enquiry from: Jen K

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. are you the...

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26 May

Windows | Glazing

Harwich - CO12

Enquiry from: Nasrin K

Start Date: Immediate

secondary glazing 2 bedrooms, double glazed period windows, kitchen times 2, bathrooms times 2, stairwell times 2

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01 Dec

Windows | uPVC

Harwich - CO12

Enquiry from: Donna G

Start Date: Immediate

windows and doors

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05 Apr

Windows | uPVC

Harwich - CO12

Enquiry from: GILLIAN C

Start Date: Immediate

Homeowner 2+ windows UPVC Supplied and fitted Please contact to appoint

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04 Feb

Windows | uPVC

Harwich - CO12

Enquiry from: Clare B

Start Date: 1 to 3 months

Are you the property owner: Owner of the property What level of service do you require: Supply and installation of full unit Property Type: Terrace How many windows do you need: 4+ Window Material: uP...

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13 Nov

Windows | uPVC

Harwich - CO12

Enquiry from: Terry L

Start Date: Immediate

*Property owner 9 windows uPVC Supplied and fitted Please call to appoint

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21 Jul

Windows | uPVC

Harwich - CO12

Enquiry from: Gill L

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Semi detached How many bedrooms do you have: 3-4 Rooms Have you thought about Solar panels: No Time scale: Immediate Other Forms: 35 A...

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08 Jun

Windows | uPVC

Harwich - CO12

Enquiry from: Linda S

Start Date: Immediate

Home Owner UPVC Supplied and Fitted Please Call to Appoint

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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 Harwich is:

£2,150

Window Installer job Window Installer cost in 2025
Double glazing in Harwich £2,250-£4,500
Upvc double glazing units only in Harwich £650-£1,600
Triple glazing in Harwich £2,250-£4,500
Aluminium windows in Harwich £3,438-£4,938
Wooden window in Harwich £2,125-£3,875
Aluminium windows supply only in Harwich £1,800-£2,950
Upvc or wood porch in Harwich £3,313-£5,013
Sash window in Harwich £2,400-£5,000
Glaziers in Harwich £54-£144
Secondary glazing in Harwich £2,250-£4,500
uPVC Single Window in Harwich £363-£1,173
Wooden sash windows in Harwich £2,125-£3,875
Wooden windows supply only in Harwich £1,630-£4,570
Aluminium repair in Harwich £240-£360
Window repair in Harwich £159-£451
Wooden window repair in Harwich £210-£740

Related Window Installer searches in Harwich

Window Installer FAQs

How to fit aluminium double glazed 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.

What is double glazing?

If a window is double glazed, it has two panes of glass that have a space between them containing argon gas. The gas works as an insulator, keeping heat inside the house as well as reducing noise. It also strengthens the window.

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.

how much does a porch cost?

Are you interested in constructing a porch to your property? Estimating the cost of the project before proceeding will solve a lot of possible headaches in the future.

A porch is great place where you can keep your shoes, jackets, dog leads as well as other items to create free space within the property. Apart from this, a porch also serves numerous other purposes to make it a very good structure to have on your property. Not only is it a good means to put a roof over your head when it’s pouring with rain, but also a highly economical way to add floor space to your home. The question, however, how much would it cost to build a porch?

The price of building a porch is based on a wide variety of factors such as the type of materials required, the size of the porch, location of the structure and lots more. As a result, you should note that this guide provide figures that are only a rough guide that’ll put you on the right direction to make informed decisions.

Depending on the type of porch you choose to build, the average cost range from £1,900 to £2,100 for a uPVC porch and up to £10,000 for a lean to porch. There are other types of porch including the traditional porches ( Edwardian and Victorian porches) costing within a range of £2,500 to £8,400.

The materials required also has a great influence in determining the price of a porch. An aluminium porch will cost between £7,5000 to £8,200, while a brick porch will cost slightly less between the range of £2,000 to £8,000. They can both be constructed either as a front porch or as a rear porch, but due to fewer restrictions on aluminium porch, it can be made a lot larger.

How to replace the glass in a uPVC window?
It’s not too difficult to replace the glass in a uPVC window, so if you’re a confident DIYer you could have a go at this yourself. We’ll go through the main steps on how to replace the sealed unit in a uPVC double glazed window:
  1. 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.
  2. 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!
  3. 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.
  4. 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.
  5. 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.
  6. 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.
And there you go! If you’re feeling confident you can have a go at replacing the glass in your uPVC window yourself. But if you’ve got any worries, leave it to a window installer who will be able to do it in less than an hour.
How much is it to repair the glass in a window?
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.
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 to fit a double glazed window?

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.

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