Find a Window Installer you can trust in Darlington.

Choose from 27 Window Installers, all rated by people like you.

Over 40 reviews & an average rating of 4.3/5 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

Barriertherm UK

2 review(s)
Offers services in DARLINGTON
We are a family run company run on family values we provide a personal professional service offering great products at fac...
Over 20 Reviews

Pennine Home Improvements

29 review(s)
Offers services in DARLINGTON
Pennine Home Improvements Pennine Home Improvements designs and installs conservatories, UPVC Windows, composite and UP...

Ashdale Home Improvements

0 review(s)
Offers services in DARLINGTON
We at Ashdale Home Improvements carry out conservatory warm roof conversions and can help with any issues regarding your c...

RG Doors

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

1st For Windows

0 review(s)
Offers services in DARLINGTON
From concept to completion, we handle all your window needs. Premier installation services for homes and businesses. Exper...

Recent Window Installer Enquiries

28 Jan

Windows | uPVC

Darlington - DL3

Enquiry from: David C

Start Date: Immediate

Call back anytime. Number of windows: 6 Number of doors: 3 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

Post a similar request >

06 Jan

Windows | uPVC

Darlington - DL1

Enquiry from: Gavin H

Start Date: Immediate

Call anytime. Number of windows: 5 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

Post a similar request >

28 Nov

Windows | uPVC

Darlington - DL1

Enquiry from: Charlotte D

Start Date: Immediate

Call any time. Number of windows: 5 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

Post a similar request >

23 Oct

Windows | uPVC

Darlington - DL1

Enquiry from: Lisa Jane H

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 >

09 Oct

Windows | uPVC

Darlington - DL1

Enquiry from: Jack J

Start Date: Immediate

Customer made an online enquiry for replacement windows via one of our websites. Confirmed via . 2+ windows Supply and install Please call to arrange an appointment to quote.

Post a similar request >

04 Oct

Windows | uPVC

Darlington - DL3

Enquiry from: Melanie H

Start Date: Immediate

Call any time. Number of windows: 5 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

Post a similar request >

03 Oct

Windows | uPVC

Darlington - DL1

Enquiry from: Margaret D

Start Date: Immediate

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

Post a similar request >

02 Sep

Windows | uPVC

Darlington - DL1

Enquiry from: Jason B

Start Date: Immediate

Call any time. Number of windows: 10 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

Post a similar request >

13 Jun

Windows | Glazing

Darlington - DL3

Enquiry from: Ben S

Start Date: Immediate

Double glazing glass replaced .128cm x 103cm. Seems like the seal has broke and letting moisture in.

Post a similar request >

17 Apr

Windows | uPVC

Darlington - DL3

Enquiry from: James H

Start Date: Immediate

Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.

Post a similar request >

07 Feb

Windows | uPVC

Darlington - DL3

Enquiry from: Peter 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 ...

Post a similar request >

03 Feb

Windows | uPVC

Darlington - DL1

Enquiry from: Sharon B

Start Date: Immediate

are you the property owner: tenant (with permission) what level of service do you require: supply and installation of full unit property type: detached how many windows do you need: 4+ windows do you...

Post a similar request >

07 Jan

Windows | uPVC

Darlington - DL1

Enquiry from: Sharon B

Start Date: Immediate

are you the property owner: tenant (with permission) what level of service do you require: supply and installation of full unit property type: detached how many windows do you need: 4+ windows do you...

Post a similar request >

20 Dec

Windows | uPVC

Darlington - DL1

Enquiry from: Karan S

Start Date: Immediate

Customer is looking to get quotes for replacement double glazing. multiple windows Supply and install Please call to quote.

Post a similar request >

02 Dec

Windows | uPVC

Darlington - DL1

Enquiry from: Diane G

Start Date: Immediate

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

Post a similar request >

15 Nov

Windows | uPVC

Darlington - DL1

Enquiry from: Arielle K

Start Date: Immediate

Are you the home owner of that property? yes joint How many windows are you considering replacing? 1 What material do you require, UPVC? UPVC What colour do you want them to be? WHITE Do you require d...

Post a similar request >

13 Nov

Windows | uPVC

Darlington - DL2

Enquiry from: Suzanne B

Start Date: Immediate

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

Post a similar request >

12 Nov

Windows | uPVC

Darlington - DL2

Enquiry from: Neringa R

Start Date: Immediate

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

Post a similar request >

20 Jun

Windows | uPVC

Darlington - DL1

Enquiry from: Christina R

Start Date: Immediate

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

Post a similar request >

04 Jun

Windows | uPVC | Repair

Darlington - DL1

Enquiry from: Mariana D

Start Date: Immediate

I need to replace two old doors with two other doors, one made of composite and one PVC, bought second hand

Post a similar request >

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 Darlington is:

£2,657

Window Installer job Window Installer cost in 2026
Double glazing in Darlington £900-£8,500
Upvc double glazing units only in Darlington £800-£1,200
Triple glazing in Darlington £900-£8,500
Aluminium windows in Darlington £1,875-£2,875
Wooden window in Darlington £3,750-£5,750
Aluminium windows supply only in Darlington £2,600-£3,900
Upvc or wood porch in Darlington £2,813-£6,013
Sash window in Darlington £1,050-£9,000
Glaziers in Darlington £57-£87
Secondary glazing in Darlington £900-£8,500
uPVC Single Window in Darlington £225-£345
Wooden sash windows in Darlington £3,750-£5,750
Wooden windows supply only in Darlington £2,760-£4,140
Aluminium repair in Darlington £240-£360
Window repair in Darlington £268-£402
Wooden window repair in Darlington £320-£480

Related Window Installer searches in Darlington

Window Installer FAQs

How much is a single window?
Sometimes accidents happen, and that leads to you needing to replace just a single window. Luckily, most window fitters are happy to replace just one window if you need to. But how much a single window costs will depend on a few factors. Firstly, do you need the entire window, including the frame, replaced, or just the sealed unit? If the frame is still in good condition, glaziers and some window installers can replace the sealed unit and this will set you back around £250. If your window frame is damaged, don’t try to get away with not replacing it. Having a broken window frame can let heat escape your home, increasing your energy bills, and you’re likely to hear more traffic noise. Plus, if the frame is broken you might have trouble closing the window properly, stopping you from keeping your home secure. So how much is a single window if you need the whole thing replaced? You should expect it to cost between £400-£550, but it could cost more or less than this depending on your location, the size of the window and how tricky it is to replace. There are other factors that will impact the cost of replacing a single window. Do you want the window to have plain, leaded or Georgian bar glass? Maybe it will be a casement window, or a bay, bow or sash? The cost will increase if you want more than one opener if it’s a large window, and if you want it to have locks. Also, the standard white uPVC frame colour will probably be included in the price, but if you want a woodgrain look or a different colour uPVC this will cost more.

how does double glazing work?

One of the essential factors that makes a home truly a home is the convenience and comfort it provides us. As a result, we usually have a long to do list comprising things that come together to make sure our home is comfortable with ambient temperature at the very top of the scale of preference. After all, no matter how greatly designed your furniture and home decor is, it probably would amount for nothing if the temperature is either too hot or too cold. Some of the most common ways we incorporate to make the temperature a lot more conducive and warm during the winter months is by installing air conditioning system or through top notch insulation materials, but the fact still remains that a lot of heat would escape through the doors and windows. And that’s exactly the use of double glazing. So how exactly does double glazing work?

Double glazing basically works by preventing the escape of air and trapping it between two panes of glass. It’s the trapped air which serves as an insulation barrier which delivers 3 major functions. First and foremost, it stops the escape of heat through the window as the barrier created insulates the room from varying air temperatures at both sides of the glazing unit. The second major function is the double glazing works to keep down noise pollution coming from outside. While the third major function of double glazing I the fact that it helps minimize condensation which usually occurs on the single glazed windows’ inside as the cold outside air works to cool the warm air inside the house. When you install a double glazing window, the insulation barrier generated will work to stop the air temperature transmission which ultimately helps prevent the occurrence of condensation.

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!
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 money will I save with double glazing?

By replacing the single glazed windows in your home you stand to make savings of around £170 each year. It’s not just the financial gain that makes double glazing attractive though and you can also save up to 680kg of carbon emissions annually. Over 20 years this is a saving of around £3,400 and 13,600kg of CO2.

Are A-rated windows worthwhile?

On the grand scale of things there isn’t a huge difference between B-rated windows and A-rated windows. Consumer watchdog Which? have calculated an extra 6.5% would be saved on energy bills with A rather than B rated panes. Be aware that A rated windows are slightly more expensive, however.

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.

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.

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 Darlington.

Pick the right pro for you

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

Are you a Window Installer in Darlington?

View our open Window Installer jobs near you

Join today
View Shortlist