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Verified Pro

Alexander Constructors

0 review(s)
Offers services in MARTOCK
South Wales, Penarth based design and build contractor. Projects completed include new houses, extensions, kitchens, bathr...
Verified Pro
We are a Home Improvements company specialising in replacement Windows and Doors, refurbishment and new build Conservatori...
We are a Family run business with over 25 years’ experience with windows and doors. Predominantly covering the Southwest, ...
The company was established in 1977 selling and installing aluminium windows mainly in the South West. Believing that the ...

Recent Window Installer Enquiries

26 Jan

Windows | uPVC

Martock - TA12

Enquiry from: Steven W

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 d...

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19 Jul

Windows | uPVC

Martock - TA12

Enquiry from: Patricia J

Start Date: Immediate

3 house front window replacement, prefer aluminium

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09 May

Windows | uPVC

Martock - TA12

Enquiry from: Janice B

Start Date: Immediate

3 windows 1 window has 3 panes the other 2 windows have 2 panes are you the property owner: owner of the property what level of service do you require: supply and installation of full unit property ty...

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30 Jul

Windows | uPVC

Martock - TA12

Enquiry from: Maureen D

Start Date: Immediate

i am looking to get quotes to have 3 windows windows replaced are you the property owner: owner have you considered getting your windows replaced to match your conservatory: yes how many windows are y...

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30 Jul

Windows | Glazing

Martock - TA12

Enquiry from: Maureen D

Start Date: Immediate

customer has confirmed they are looking to have their roof, door, window repaired on their conservatory. are you the property owner: owner is the repair needed internal or extrernal: internal & extern...

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23 Jun

Windows | Glazing

Martock - TA12

Enquiry from: Jan D

Start Date: Immediate

Single glass replacement of 9 panes of glass in. Georgian window Are you the property owner: Owner of the property Property Type: Other Are you looking for glaziers: Yes How many units do you do you r...

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28 Apr

Windows | uPVC

Martock - TA12

Enquiry from: Keith B

Start Date: Immediate

Need quote fora composite door and side panels Product Material: uPVC_White

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29 Mar

Windows | uPVC

Yeovil - BA22

Enquiry from: Jane H

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 Yeovil area 2+ windows Supply and insta...

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08 Jan

Windows | uPVC

Sherborne - DT9

Enquiry from: Anna-Louise G

Start Date: Immediate

Call anytime. Number of windows: 4 Number of doors: 1 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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16 Dec

Windows | uPVC | Repair

Yeovil - BA21

Enquiry from: Michelle R

Start Date: Immediate

New seals wanted on all windows. Repairs needed to conservatory roof as leaking. If you can supply, also looking for a panel to cover the bottom panel of the full ceiling to floor window in lounge

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14 Dec

Windows | uPVC | Repair

Yeovil - BA22

Enquiry from: Christopher S

Start Date: Immediate

Single pane broken - thin glass - 23.5cm by 36.5cm And single pane -thin glass - cracked - 28cm by 32cm

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02 Dec

Windows | uPVC

Yeovil - BA20

Enquiry from: David F

Start Date: Immediate

What best describes your living situation? - Homeowner - Sole. How many windows are you considering replacing? - --. What material do you require, UPVC? - -. What colour do you want them to be? - -. D...

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22 Oct

Windows | uPVC

Stoke-sub-hamdon - TA14

Enquiry from: Natalie B

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.

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04 Oct

Windows | uPVC

Yeovil - BA22

Enquiry from: Julie P

Start Date: Immediate

Call any time. Number of windows: 8 Number of doors: 2 Quote requested on windows and doors, in PVCu, to be supplied and fitted.

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27 Sep

Windows | uPVC

Yeovil - BA21

Enquiry from: Connor J

Start Date: Immediate

call any time. number of windows: 4 number of doors: 1 quote requested on windows and doors, in pvcu, to be supplied and fitted.

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10 Mar

Windows | uPVC | Repair

Sherborne - DT9

Enquiry from: Jonathan R

Start Date: Immediate

Replacement of a wooden cellar window that has rotted over time and frame displaced.

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01 Nov

Windows | Wooden

Yeovil - BA22

Enquiry from: Tina H

Start Date: Immediate

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

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13 May

Windows | uPVC

Chard - TA20

Enquiry from: Peter G

Start Date: Immediate

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

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09 Apr

Windows | uPVC | Single Window

Yeovil - BA20

Enquiry from: Martin K

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 require them to be...

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02 Apr

Windows | uPVC

Chard - TA20

Enquiry from: Kim P

Start Date: Immediate

I am after a quote for a composite front door and wondered if this is something you can help with

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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 Martock is:

£2,082

Window Installer job Window Installer cost in 2026
Double glazing in Martock £1,500-£5,000
Upvc double glazing units only in Martock £800-£1,200
Triple glazing in Martock £1,500-£5,000
Aluminium windows in Martock £1,875-£2,875
Wooden window in Martock £3,750-£5,750
Aluminium windows supply only in Martock £2,600-£3,900
Upvc or wood porch in Martock £2,625-£4,025
Sash window in Martock £1,800-£6,000
Glaziers in Martock £57-£87
Secondary glazing in Martock £1,500-£5,000
uPVC Single Window in Martock £225-£345
Wooden sash windows in Martock £3,750-£5,750
Wooden windows supply only in Martock £2,760-£4,140
Aluminium repair in Martock £240-£360
Window repair in Martock £268-£402
Wooden window repair in Martock £320-£480

Related Window Installer searches in Martock

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.

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.
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 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.

What is uPVC?

uPVC is unplasticised polyvinyl chloride. It is a favourite amongst homeowners and manufacturers for its cheap production cost and excellent benefits. uPVC is used for window frames, conservatories and doors. In fact, uPVC can be three times cheaper than wooden frames and is also the most energy efficient option.As well as this, uPVC is now available in a range of colours other than the typically seen bright white finish. It can also be recycled, is durable and resistant to changing weather conditions.

Where can I get one double glazed window?

Most window installers will be able to provide you with one double glazed window and fit it for you. If you’re replacing one double glazed window in your home, ask them to try and source the same windows that you already have or find one that’s very similar. Externally, you probably won’t be able to notice the difference, but if your existing windows are very old there may be some exterior discolouration and the locks and handles might look slightly different.

If you want one double glazed window so you can fit it yourself, there are lots of online companies that can supply you with one window. However, window fitting is a skilled trade and you might want to consider whether you have the right tools and experience to fit it yourself. Of course, you’ll save money on installation costs, but if something goes wrong, you might end up shelling out to get it fixed anyway.

The other thing to consider is that any replacement windows need to be certified that they meet Building Regulations. If you fit the double glazed window yourself, you’ll need to apply to your local council building control officer to get a certificate that confirms that you fitted the window within the regulations. You’ll have to pay a fee for this, and it will be even more expensive if Building Control say that the window hasn’t been fitted within the regulations and you have to start again.

The alternative is to ask a reputable window installer that is registered with a self-certification scheme, like FENSA, to install the window. That means that they can self-certify that the window meets building regulations once they’ve finished the installation.

how to build a porch?

A front porch is a glorious addition that would be a blessing to have in any home. It gives you a good floor space to enjoy your neighbourhood as well as your surroundings in the cool atmosphere of the outside living space. The question however is, how do you build a porch? Constructing the structure can be a very challenging task but with proper guidance and lots of practice, you can also be a skilled porch builder. To protect your investment, it’s advisable to hire the services of a professional for help with your porch especially if you lack proper training and experience. This way, you’ll get to save time and money. This guide is prepared to give you some insight into the porch building process.

lAssess Your Location

• Consider the location before proceeding with the project. It’s essential to select a location that’ll reduce the sunlight coming in.

lPlan The Materials Required For Your Porch

• You’ll have to decide the type of porch you’ll be going for. For example, your porch can be built out of wood, composite decking or if it’s going to utilize some stone flooring, brick or even tile.

lBuild Your Porch Foundation

• Dig the foundations deep to ensure stability while also putting in mind any pipework or cabling

• Fit a damp proof course

• Add the subfloor - this can be concrete or timber

lStart To Lay The Brick And Floor

• Lay the bricks evenly up to the DPC level

• Lay the floor

• Add the flooring protection

• Once done, you can lay the bricks to the window level

• You can fit in a window sill if required before proceeding the brick and block work until it reaches the roof timber’s height

• Fit the linter when you get to the top of where the window will reach.

lConstruct The Roof

• Build a timber framework

• Fit a breathable roof membrane

• Install the roof battens and lay the roof tiles.

• Add gutters

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.

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