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Kensington Windows

0 review(s)
Offers services in DORCHESTER
Window & door installations across Dorset, Hampshire, Wiltshire & Somerset. High quality range of products including the m...
We are a Family run business with over 25 years’ experience with windows and doors. Predominantly covering the Southwest, ...

Thermaspec UK

1 review(s)
Offers services in DORCHESTER
Thermaspec UK are one of the UK’s leading property improvement specialists. Based in Poole, we are dedicated to helping ho...
The company was established in 1977 selling and installing aluminium windows mainly in the South West. Believing that the ...

The Window and Door Store

0 review(s)
Offers services in DORCHESTER
We are nationwide suppliers of Upvc and Aluminium windows and doors. From casement windows to 7 leaf bifolding doors; we a...

Recent Window Installer Enquiries

30 Mar

Windows | uPVC

Dorchester - DT1

Enquiry from: Deb T

Start Date: Immediate

Call anytime. Number of windows: 6 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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11 Nov

Windows | Aluminium

Dorchester - DT2

Enquiry from: Gemma M

Start Date: Immediate

Are you the home owner of that property? - Yes. How many windows are you considering replacing? - NB PORCH. What material do you require, Aluminium? - aluminium. What colour do you want them to be? - ...

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06 Sep

Windows | uPVC

Dorchester - DT1

Enquiry from: Jorge D

Start Date: Immediate

Call back anytime. Number of windows: 16 Number of doors: 3 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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02 Aug

Windows | Wooden

Dorchester - DT2

Enquiry from: James G

Start Date: Immediate

22 hardwood windows. mainly 18x18 but not standard size in 17th century Grade 2 listed building

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19 Jun

Windows | uPVC

Dorchester - DT1

Enquiry from: Chantelle L

Start Date: Immediate

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

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01 Apr

Windows | uPVC | Single Window

Dorchester - DT2

Enquiry from: Neil -

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 requir...

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22 Nov

Windows | Glazing

Dorchester - DT2

Enquiry from: Clem S

Start Date: Immediate

Customer is interested in Secondary Glazing for two, four section bay windows. Call back anytime. Type of window / door: Windows Glass replacement only: No Number of windows requiring repair: 2 ...

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11 Oct

Windows | Glazing

Dorchester - DT2

Enquiry from: Ron G

Start Date: Immediate

one small top doubled glazed window is misty

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04 Jul

Windows | uPVC | Single Window

Dorchester - DT2

Enquiry from: Carlos F

Start Date: Immediate

Are you the home owner of that property? JOINT How many windows are you considering replacing? 1 DOOR What material do you require, UPVC? UNSURE What colour do you want them to be? UNSURE I assume you...

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18 May

Windows | Wooden

Dorchester - DT1

Enquiry from: Ian F

Start Date: Less than one month

customer in dorchester area has requested that we arrange quotes for their wooden windows project.mr are considering various options and would like to discuss with a window installer directly.please c...

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09 Dec

Windows | Glazing

Dorchester - DT2

Enquiry from: Clem S

Start Date: Immediate

Customer is interested in Secondary Glazing for 2 bay windows that have 4 sections in them. Call back anytime. Type of window / door: Windows Glass replacement only: No Number of windows requi...

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21 Nov

Windows | Glazing

Dorchester - DT1

Enquiry from: James O

Start Date: Immediate

Customer is interested in secondary glazing. Call back anytime. Type of window / door: Windows Glass replacement only: No Number of windows requiring repair: 6 Number of doors requiring repair:...

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21 Sep

Windows | uPVC | Repair

Dorchester - DT2

Enquiry from: Matthew R

Start Date: Immediate

seven single glazed (4mm toughened) panes to be fitted to newly rebuilt oak porch. your webform insists we live in dorchester, but it's actually main street broadmayne, between the black dog and the ...

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24 Jun

Windows | Wooden | Repair

Dorchester - DT1

Enquiry from: Davd B

Start Date: Immediate

locate and reseal leaks around glass panel in roof vent on conservatory. r are you the property owner: owner of the property property type: terrace what service are you looking for: resealing how man...

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17 Jun

Windows | uPVC

Dorchester - DT1

Enquiry from: Gavin K

Start Date: Immediate

Good morning, I was wondering if you were able to give me a price on a PVC bi-folding window. The size would be 1950mm wide x 1050mm high. Anthracite grey exterior and white internal face. Silver i...

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05 May

Building Work | Porch

Dorchester - DT2

Enquiry from: David A

Start Date: Immediate

Call back anytime. New build or replacement: Replacement Quote requested on a porch, in PVCu, to be supplied and fitted.

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01 Mar

Windows | uPVC

Dorchester - DT1

Enquiry from: Nigel B

Start Date: 1 to 3 months

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

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13 Sep

Windows | uPVC | Repair

Dorchester - DT2

Enquiry from: James P

Start Date: Immediate

replace 3 double glazed units

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24 Aug

Windows | uPVC | Repair

Dorchester - DT2

Enquiry from: Paula T

Start Date: Immediate

i need a window taken out to fit a sofa and then i need it put back in again on the same day are you the property owner: tenant (with permission) property type: detached what service are you looking f...

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23 Aug

Windows | Glazing

Dorchester - DT2

Enquiry from: Debbie F

Start Date: Immediate

supply and fit glass to windows 24 panes @ 392mm x 305mm

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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 Dorchester is:

£2,607

Window Installer job Window Installer cost in 2026
Double glazing in Dorchester £1,000-£8,500
Upvc double glazing units only in Dorchester £800-£1,200
Triple glazing in Dorchester £1,000-£8,500
Aluminium windows in Dorchester £1,875-£2,875
Wooden window in Dorchester £3,750-£5,750
Aluminium windows supply only in Dorchester £2,600-£3,900
Upvc or wood porch in Dorchester £2,625-£4,025
Sash window in Dorchester £1,150-£9,000
Glaziers in Dorchester £57-£87
Secondary glazing in Dorchester £1,000-£8,500
uPVC Single Window in Dorchester £225-£345
Wooden sash windows in Dorchester £3,750-£5,750
Wooden windows supply only in Dorchester £2,760-£4,140
Aluminium repair in Dorchester £240-£360
Window repair in Dorchester £268-£402
Wooden window repair in Dorchester £320-£480

Related Window Installer searches in Dorchester

Window Installer FAQs

how much are new windows?

Are you about to replace your old windows and wondering just how much it’ll cost to have a new one fitted? If yes, then you’ve come to the right place! The question is a very straight forward one, however a direct answer can not be provided as determining window prices for a replacement project can be a very tricky challenge. With a plethora of influencing factors that can play a key role in the price of both materials and labour to be used, it could be extremely hard for a window installer to provide a cost estimate without paying you a visit beforehand.

The factors that can go a long way in determining the price of your new window includes the size of the window, frame material, style chosen, your location, rates charged by the window installer (these rates can be different from an installer to an installer, so it’ll probably be in your best interest to compare quotes to identify the most competitive price) as well as the type of glass required.

Generally, for a small flat featuring four windows, the average cost for new windows would be between the range of £2,100 to £2,300. This range provided covers the cost of double glazed uPVC casement windows as well as the installation price. In the same tone, a home with up to 8 windows will have an average cost for window replacement between the range of £4,400 to £4,600, wile also taking into account the installation price. Whereas a house comprising 10 windows could begin at an average cost of window replacement between the the range of £5,200 to £5,500, and a 15 window home will be between the range of £8,400 to £8,600. it should be noted that the aforementioned figures only include the standard number of windows with a uPVC frame and the installation cost.

How much could I save on my energy bills if I install double glazing?

As well as keeping your home warmer and reducing noise, you’ll notice a saving on your energy bills from installing double glazing. If you install A++ rated windows in your home after having single glazing, you could save up to £120 year on your energy bills. The Energy Saving Trust has more information.

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.

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!
What happens if I have problems with my new windows?

Ultimately the double glazing company you use is responsible for the quality of work and to ensure your windows are of an excellent standard. This is why it’s important to get a warranty and use a Fensa registered installer. If problems emerge within a couple of years then it’s likely the installation was of a poor standard.Contact the double glazing company and have the issue repaired or new windows replaced. This doesn’t matter if you received a discount of free windows as part of the deal. As long as you entered into a contract the company is obliged to restore the windows.

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.

Are coloured double glazing windows more expensive than white ones?

Coloured double glazing windows are more expensive than white ones, in general. uPVC is the cheapest material to use for double glazing, and white is the standard colour. But there are endless possibilities in terms of colours you can have, and they do come at additional cost.

Some people choose to have coloured double glazing that matches or opposes the colour of the exterior of their house. Another popular option is a woodgrain effect, which from a distance looks just like more expensive timber windows. The best thing about a wood effect is that you can have the stylish look of wooden windows without the maintenance, and they should last longer.

While coloured double glazing is more expensive than white ones, it doesn’t have to break the bank. The best thing to do is get in touch with a range of window companies and ask them to come round to give you a quote. They should be able to offer you brochures or links to websites of different brands of windows that offer coloured frames. From there, you can decide on the installers you liked most and the brand you preferred.

It’s worth bearing in mind that it’s not always best to go with the cheapest coloured windows. While there lots of good, inexpensive options out there, sometimes very cheap windows won’t be good quality and may not last as long as other slightly more expensive brands. Speak to your installer about guarantees that may come with the windows and how long they would expect them to last before making your final decision.

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.

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