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Verified ProOver 10 Reviews

The Window Company

13 review(s)
Offers services in SLEAFORD
The Window Company have been trading since 2001 in the East Midlands area, offering a bespoke service for windows, conserv...
Verified ProOver 50 Reviews

ALL Weather Roofline

53 review(s)
Offers services in SLEAFORD
AWR have years of experience in creating stunning home improvement products, carefully crafted right here in the UK to off...
Verified Pro

Build fix & Plaster

0 review(s)
Offers services in SLEAFORD
We have many years of experience working on extension projects of our own, or sub contracting onto other projects with our...

Recent Window Installer Enquiries

30 Oct

Windows | uPVC

Sleaford - NG34

Enquiry from: Gail M

Start Date: Immediate

Customer in Sleaford area made an enquiry for double glazing online. Confirmed via SMS at 09:27 2+ windows Supply and install Please call to arrange an appointment to discuss options

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28 Oct

Windows | uPVC

Sleaford - NG34

Enquiry from: Karolina K

Start Date: Immediate

Customer is looking to replace their windows. They are still considering options so please call to discuss what would be best for their home. Homeowner lives in Sleaford area 2+ windows Supply and in...

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21 Oct

Windows | uPVC

Sleaford - NG34

Enquiry from: Karolina K

Start Date: Immediate

Customer living in Sleaford area made an enquiry for double glazing quotes via one of our websites. Customer confirmed interest via / SMS at 20:10 Homeowner needs advice on options 2+ windows Supply ...

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16 Sep

Windows | uPVC

Sleaford - NG34

Enquiry from: Nadim 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 ...

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06 Sep

Windows | uPVC

Sleaford - NG34

Enquiry from: Rachell C

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 ...

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28 Apr

Windows | uPVC | Single Window

Sleaford - NG34

Enquiry from: Corinne S

Start Date: Immediate

replace one single window with a larger double

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06 Nov

Windows | Glazing

Sleaford - NG34

Enquiry from: Terry E

Start Date: Immediate

13 double glazing units with simple lead pattern mostly blown units in Conservatory

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25 Oct

Windows | Glazing

Sleaford - NG34

Enquiry from: B

Start Date: Immediate

Call any time. Type of window / door: Double Glazed Windows Glass replacement only: Yes Number of windows requiring repair: 5 Number of doors requiring repair: 1 Other repair required: no Quo...

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23 Apr

Windows | Glazing

Sleaford - NG34

Enquiry from: B

Start Date: Immediate

Call any time. Type of window / door: WIndows Glass replacement only: Yes Number of windows requiring repair: 5 Number of doors requiring repair: 1 Other repair required: no Quote request...

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26 Oct

Windows | uPVC

Sleaford - NG34

Enquiry from: Apexa P

Start Date: Immediate

customer made an enquiry for upvc double glazing and confirmed on the quotatis site they would like quotes from a window installer.customer lives in the sleaford area and would like a call to discuss ...

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25 Jun

Windows | uPVC

Sleaford - NG34

Enquiry from: Peter H

Start Date: Immediate

14 windows.1 front door & french windows.....of quality.with guarantees. i am looking for quotes for 4+ windows are you the property owner: owner of the property what level of service do you require...

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23 Apr

Windows | uPVC | Single Window

Sleaford - NG34

Enquiry from: Ken E

Start Date: Immediate

replacement glass or a new window in the kitchen as the seals have blown. i am looking for quotes for 1 window upvc are you the property owner: owner of the property what level of service do you requ...

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17 Mar

Windows | uPVC | Single Window

Sleaford - NG34

Enquiry from: Sarah R

Start Date: Immediate

with permission from my landlord, i’m looking to remove a small window (keep the panes to put right when i leave) and install a new window with a catflap. i have the catflap but hoped you would be a...

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13 Oct

Windows | Wooden

Sleaford - NG34

Enquiry from: Joanna W

Start Date: Immediate

Are you the home owner of that property? Yes How many windows are you considering replacing? 3 What material do you require, Wood ? wood What colour do you want them to be? Undecided Do you require do...

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15 Aug

Windows | uPVC | Repair

Sleaford - NG34

Enquiry from: Peter U

Start Date: Immediate

Conservatory doors and kitchen door need refitting plus door seals required

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13 Jul

Windows | uPVC

Sleaford - NG34

Enquiry from: Alan W

Start Date: Immediate

pass: 4 - call anytime. type of building: detached number of bedrooms: 3 approximate age of building: 50 years existing heating system: boiler and radiators (mains gas) mains gas available: yes...

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13 Jun

Windows | uPVC

Sleaford - NG34

Enquiry from: Peter B

Start Date: Less than one month

Best Time: Any Work Type: uPVC Windows

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28 May

Windows | uPVC

Sleaford - NG34

Enquiry from: Gerald L

Start Date: Immediate

UPVC Double glazing; 5 standard windows, 1 bay window and 2 new doors.

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20 May

Windows | uPVC

Sleaford - NG34

Enquiry from: Gerald L

Start Date: Immediate

are you the property owner: owner of the property do you require any windows to be replaced: yes how many windows do you need: 5+ windows other forms: upvc double glazing what level of service do you...

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17 May

Windows | uPVC

Sleaford - NG34

Enquiry from: Gerald L

Start Date: Immediate

5 standard window, 1 bay window and 2 outer doors. are you the property owner: owner of the property what level of service do you require: supply and installation of full unit how many windows do you ...

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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 Sleaford is:

£2,082

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

Related Window Installer searches in Sleaford

Window Installer FAQs

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.

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.

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.
Will double glazing increase my property’s value?

These days, buyers expect homes to have double glazing. People recognise the benefits of installing double glazing, so if you don’t have it installed you should consider it. You’ll increase your property’s value and give it a better chance of selling faster, since single glazed properties are also more likely to have problems with damp and mould which could put buyers off.

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 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.

How long do double glazed sealed units last?
When it comes to how long double glazed sealed units (the glass inside the window) last, a lot of it is down to the quality of the glass and the environment that your windows sit in. It’s not uncommon for your window frames themselves (especially if they are uPVC) to last longer than your sealed units. Sealed units are called that because they’re two panes of glass sealed together with an air gap in between. They use what’s called a ‘perimeter seal’ to protect the air gap between the panes, and is usually made of butyl mastic which retains a desiccant within a perforated metallic spacer bar. The desiccant’s job is to absorb any moisture which finds its way into the air gap to stop your window from misting up on the inside. When a sealed unit fails, or is ‘blown’, it’s usually because moisture builds up around the seal and causes it to fail. Sealed units won’t last forever, so you will eventually end up with condensation inside the panes of your double glazing, but in an ideal environment your double glazed sealed units could last up to 30 years, with some manufacturers claiming as long as 40 years. But they do require a bit of maintenance and the position of your windows will also make a difference as to how long they last. There are a few things that determine how long a sealed unit will last:
  • Climate - If your window faces south, it will be subject to direct sunlight for a lot of the day. This tends to cause the sealed unit to fail more quickly – a south-facing window may last between 10-25 years. This is because the spacer bars will twist as the temperature rises and causes the adhesive holding them together to eventually fail.
  • Moisture - Windows in kitchens and bathrooms tend to fail more quickly because they come into contact with moisture more often. For example, if water gets on your windowsill when you shower, the seal around the glass will come loose more quickly if it’s constantly wet.
When you replace the sealed units in your windows or get completely new double glazing, make sure you choose an installer that uses quality products and will take all the steps to ensure that your sealed units are kept away from moisture as much as possible.
Can you repair blown double glazed windows?

You can only repair blown double glazed windows in the sense that you can replace the sealed unit (the glass part of the window) instead of having to replace the entire window.

When a double glazed window is blown, it means that the seal around the window has failed and is now letting air in and out. Often the first sign that the sealed unit has blown is condensation on the inside of the window, which is annoying since there’s no way to get rid of it! When your sealed unit has blown, you’ll be losing heat out of the window, meaning you could be spending more on your energy bills.

As a temporary fix, you could see if you can buy a misting repair kit online, but the condensation will eventually occur again as the air gets in. The best thing to do is ask a window installer or glazier to replace the sealed unit for you.

It's simple to replace the glass in a window – the specialist will remove the beading around the window, remove the blown glass from your window frame and set it to one side. They will then clean up around the frame before adding spacers in, then fitting the new sealed unit into the frame. They’ll make sure it’s a snug fit before replacing the beading back around the window to secure it.

There's no reason to put off repairing a blown double glazed window since the cost is generally much less than replacing the entire thing. A sealed unit with installation costs an average of £100, whereas a completely new window will cost around £400. You’ll soon notice that it’s less draughty and will be able see out of your window once you’ve had the blown glass replaced.

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