Find a Window Installer you can trust in Trefriw.

Choose from 25 Window Installers, all rated by people like you.

Over 65 reviews & an average rating of 4.7/5 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 Pro

Build fix & Plaster

0 review(s)
Offers services in TREFRIW
We have many years of experience working on extension projects of our own, or sub contracting onto other projects with our...
Celsius Home Improvements are one of the largest home improvement companies in Merseyside and have more than 20 years of e...
Over 10 Reviews
Perfect Conservatories and Windows Ltd. based on the Wirral Peninsula have been providing high quality Windows, Doors, Con...

RG Doors

0 review(s)
Offers services in TREFRIW
RG Doors offers Interior doors, Bespoke Doors, Made to measure Front doors and Interior doors, Casement windows, Sash wind...

Recent Window Installer Enquiries

19 Apr

Windows | uPVC

Trefriw - LL27

Enquiry from: S P

Start Date: Immediate

two new windows, glass replacement and patio door Homeowner UPVC Supplied and fitted Please contact to appoint

Post a similar request >

05 Mar

Windows | uPVC

Trefriw - LL27

Enquiry from: Amanda B

Start Date: Immediate

Are you the home owner : Home owner How many windows are you considering replacing : 3+ How many doors are you considering replacing : None Material: UPVC Supplied and fitted Timescale: Immed...

Post a similar request >

13 Mar

Windows | uPVC

Llandudno - LL30

Enquiry from: Christopher M

Start Date: Immediate

Call anytime. Number of windows: 3 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

Post a similar request >

09 Mar

Windows | Glazing

Colwyn Bay - LL28

Enquiry from: MERFYN T

Start Date: Immediate

replace reinforced door glass

Post a similar request >

08 Mar

Windows | uPVC

Abergele - LL22

Enquiry from: Laura O

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.

Post a similar request >

25 Feb

Windows | uPVC

Abergele - LL22

Enquiry from: Chris M

Start Date: Immediate

call back anytime. number of windows: 10 number of doors: 1 quote requested on windows and doors, in pvcu, to be supplied and fitted. are you the property owner: owner of the property what level...

Post a similar request >

19 Feb

Windows | uPVC

Llandudno - LL30

Enquiry from: Seren G

Start Date: Immediate

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

Post a similar request >

02 Feb

Windows | uPVC

Blaenau Ffestiniog - LL41

Enquiry from: Olwen R

Start Date: Immediate

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

Post a similar request >

29 Jan

Windows | uPVC

Bangor - LL57

Enquiry from: Lee E

Start Date: Immediate

Bathroom window replacement and fit

Post a similar request >

08 Jan

Windows | uPVC

Beaumaris - LL58

Enquiry from: Lynda M

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 >

08 Jan

Windows | uPVC

Colwyn Bay - LL29

Enquiry from: Wendy D

Start Date: Immediate

call any time. number of windows: 2 quote requested on windows, in pvcu, to be supplied and fitted. are you the property owner: owner of the property what level of service do you require: supply ...

Post a similar request >

06 Jan

Windows | uPVC

Bangor - LL57

Enquiry from: Eileen K

Start Date: Immediate

What best describes your living situation? - -. Are you the home owner of that property? - -. How many windows are you considering replacing? - -. What material do you require, UPVC? - -. What colour ...

Post a similar request >

12 Dec

Windows | uPVC

Blaenau Ffestiniog - LL41

Enquiry from: Iola J

Start Date: Immediate

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

Post a similar request >

11 Dec

Windows | uPVC

Betws-y-Coed - LL24

Enquiry from: Peter R

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 door...

Post a similar request >

06 Dec

Windows | uPVC

Blaenau Ffestiniog - LL41

Enquiry from: David W

Start Date: Immediate

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? - White. Do you req...

Post a similar request >

12 Nov

Windows | uPVC

Bangor - LL57

Enquiry from: Lynsey J

Start Date: Immediate

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

Post a similar request >

16 Oct

Windows | Wooden

Beaumaris - LL58

Enquiry from: Karl A

Start Date: Immediate

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

Post a similar request >

05 Oct

Windows | Wooden

Colwyn Bay - LL28

Enquiry from: Alistair A

Start Date: Immediate

Call back anytime. Number of windows: 12 Quote requested on windows, in hardwood, to be supplied and fitted.

Post a similar request >

04 Oct

Windows | uPVC

Colwyn Bay - LL29

Enquiry from: Linda S

Start Date: Immediate

Call anytime. Number of windows: 4 Quote requested on windows, in PVCu, to be supplied and fitted.

Post a similar request >

27 Aug

Windows | uPVC

Abergele - LL22

Enquiry from: Dudley C

Start Date: Immediate

Are you the home owner of that property? Yes How many windows are you considering replacing? 2 What material do you require, UPVC? yes What colour do you want them to be? white Do you require doors If...

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 Trefriw is:

£2,082

Window Installer job Window Installer cost in 2025
Double glazing in Trefriw £1,500-£5,000
Upvc double glazing units only in Trefriw £800-£1,200
Triple glazing in Trefriw £1,500-£5,000
Aluminium windows in Trefriw £1,875-£2,875
Wooden window in Trefriw £3,750-£5,750
Aluminium windows supply only in Trefriw £2,600-£3,900
Upvc or wood porch in Trefriw £2,625-£4,025
Sash window in Trefriw £1,800-£6,000
Glaziers in Trefriw £57-£87
Secondary glazing in Trefriw £1,500-£5,000
uPVC Single Window in Trefriw £225-£345
Wooden sash windows in Trefriw £3,750-£5,750
Wooden windows supply only in Trefriw £2,760-£4,140
Aluminium repair in Trefriw £240-£360
Window repair in Trefriw £268-£402
Wooden window repair in Trefriw £320-£480

Related Window Installer searches in Trefriw

Window Installer FAQs

How to measure the glass for a window replacement?
If the glass in your window has been damaged, you might only need to replace that rather than your whole window frame. Common reasons for needing to replace the glass in your window include:
  • The glass has smashed from an impact such as a stone hitting it from a lawnmower
  • You have been broken into and suspects used the window to gain entry
  • The glass has blown (lost its airtightness) from constant water build-up around the seals, which is common in bathrooms
  • Extreme weather or pressure changes have caused a crack
If your frames are still intact and there’s nothing wrong with your window’s locks or trims, there’s no reason why you can’t just replace the sealed unit in your window. To help with the quotation process, a window installer may ask you to measure the glass for your window replacement. It’s pretty simple to just measure the sealed unit inside your window. There are just 3 steps you need to take:
  1. Including the beading (the plastic and rubber seals around the windows that can be removed), measure the width of the window frame.
  2. Do the same for the height of the window, making sure you include the beading.
  3. Then, take 10mm off each measurement, and you have the approximate size of your glass.
A reputable window installer will still make their own measurements before confirming the size of the glass in your window and going ahead and ordering the replacement. Make sure you get a range of quotes from local and national installers so you can compare the price and their quotation process.
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.

how much does double glazed windows cost?

Are you looking to replace your old window for a new double glazed window and wondering what it’s going to be the cost? Well, the double glazed windows market is a very competitive one in the UK with varying prices across the country. Therefore, if you shop around you’re most likely to find something that’ll fit your budget both products and quality wise.

As you would have expected, the more windows you required the more money you are going to spend. However, the cost per window is likely going to be lower depending on the number of windows you purchase. Several double glazed windows come with a 10 year warranty but it’s advisable to also obtain a solid workmanship warranty which provides coverage for any potential problems for a good period of time upon installation.

To determine the cost of double glazed windows, there are so many things to put into consideration that just the primary dimensions of the window itself. Other factors that works to decrease or increase the cost of the project includes the frames’ quality as well as the material used. For example hardwood can be quite high priced when compared to uPVC.

The number of opening windows within the frame can also play a huge role in the cost of the windows as well as the type of the glass. The cost of a double glazing window usually ranges between £100 to £3,200 per window, depending on the available options.

To have a more accurate estimate of the cost of a double glazing window, you’ll need a obtain a survey from a double glazing installer who can take into account any possible complications that may arise when installing your windows while also giving an advise on the most suitable window style for your property.

what is a window sash?

Windows, being a very crucial feature in every home, are one of the things you simply can’t afford to ignore in your home. Having a good understanding and solid knowledge of your windows’ components like the window sash will help you stay up to date with them and able to identify any minor mishaps early on before it leads to a much bigger problem. So what exactly is a window sash?

Well without much fuss, a window sash is simply that part of your windows that’s able to open and close. And there could as well be more than one window sash that’s operable depending on your window’s type. Window sash usually possess a very basic design as well as structure. What’s more? This section of a window happens to be a frame that’s designed in such a way to make for easy placement inside the whole window casement. You’ll discover inside the sash frame, the window glass alongside any framework possessed by your window which includes grids.

Usually, the sash is fitted into the frame of the window on a runners’ set in such a way that allows for both upward and downward movements. And finally, the window sash’s frame typically comes with a locking system which provided for extra safety and security.

The window sash is a vital feature that can determine the durability and overall performance of the windows. In the event whereby your window sash is malfunctioning, it can result to numerous problems which includes both drafts as well as leaks. As a result, it’s very important to keep your window sashes in a great working condition as failure to do so will make opening and closing your windows a really difficult task.

Will double glazing stop condensation?

If you’ve got a problem with condensation and don’t have double glazing, you should find that getting new windows will help. Condensation is caused by warm air meeting a cold surface which then turns into water droplets. With two panes of glass, less heat will escape from your home and keep the window warmer, meaning when steam from the bathroom or kitchen touches your windows there should be less condensation.

How to fix a cracked glass window?
You can end up with a cracked glass window in a few ways. The most common one is when a rogue stone in the lawnmower hits the window or someone’s cricket or tennis game goes wrong and you end up with a ball through the window. Youi often end up with a ‘bullseye’ type crack that expands out from the point of impact. You can also get pressure and stress cracks from intense fluctuations in pressure and temperature. Unfortunately, there’s no way you can permanently fix cracked windows without replacing the entire sealed unit. An installer can replace a cracked glass window in less than an hour simply by taking out the sealed unit (the two panes of glass in double glazed windows) and replacing it with a new one. It costs an average of £110, but you could try to do it yourself for around £55. But what if you can’t get an installer to fix your window straight away? There is a DIY method you could try. As a temporary fix for your glass window, you can use a solvent-based adhesive like epoxy which will keep the glass intact and prevent further damage. You’ll also need:
  • Washing up liquid
  • Glass cleaner
  • A lint-free cloth or rag
  • A putty knife
  • A paper plate
  • Acetone
First, you’ll want to clean the glass using the washing up liquid and a damp cloth to remove any dust or oils. Leave it for a few minutes to dry, then create a mixture of epoxy by combining the hardener and the resin and stirring it on a paper plate. Using the putty knife, spread the mixture on the cracks, making sure you press gently to fill them. Leave it for at least 5 minutes to dry, then get rid of any excess by using some acetone on a dry cloth. Clean the window using some glass cleaner and another dry cloth, and you should have a temporary fix!
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 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.

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 Trefriw.

Pick the right pro for you

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

Are you a Window Installer in Trefriw?

View our open Window Installer jobs near you

Join today
View Shortlist