External wall insulation in Caerphilly

External wall insulation Prices in Caerphilly

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External wall insulation in Caerphilly

Are you trying to find External wall insulation in Caerphilly? Our network of installers can aid with your task. Every one of our Builder in Caerphilly are inspected so you can see local reviews, when the business was set up, ratings, approval as well as price,  allowing you to make the appropriate choice on who to hire. Let us take the hassle out of discovering as much as 4 pros for your External wall insulation project.

A wall surface does numerous things, only one of which is to hold the roofing system up. Since the 1970s the wall's duty in keeping the warmth in has come to be increasingly crucial.

Outside wall surface insulation entails repairing a layer of insulation product to the wall, then covering it with a unique type of render (plasterwork) or cladding. The coating can be smooth, textured, coloured, tiled, panelled, pebble-dashed, or completed with brick slides.

 

Is External Wall Surface Insulation Worth doing?

There are a number of problems to be dealt with before mounting external wall insulation, but the advantages are numerous, including:

  • Decreasing heat loss and power costs
  • Lowering drafts and raising the feeling of comfort
  • It does not interfere with the house while being mounted
  • It does not lower inner floor location
  • It allows wall surfaces to contribute to thermal mass (the 'tea cosy' effect).
  • It enhances weatherproofing and audio resistance.
  • It enhances the life of the wall surface.
  • It decreases condensation on interior walls.

 

Is Preparation Authorization Required for External Wall Surface Insulation?

Whatever else external wall surface insulation does, it will certainly alter the exterior appearance of your home. For the most part that will suggest gaining preparation approval prior to carrying out the work, so do contact your local authority from the start. For homes in Sanctuary and for detailed buildings it is quite feasible that permission will not loom.

Under Building Regulations, if 25 per cent or even more of a wall is to be shielded on the surface, it is normally necessary to bring the entire wall surface approximately existing requirements-- which makes feeling in that, if you're going to go to the efforts as well as cost of shielding externally, then you may too do it well. The thermal efficiency of the shielded wall surface needs to have a U value of no more than 0.30.

 

How much will it set you back?

External wall insulation is costly however efficient. Adding it as part of a bigger project will certainly minimize the expense, plus it does not need to be done to the whole home; an appealing front elevation may be better to interior insulation, while less attractive side as well as back altitudes can be insulated on the surface. But despite the higher cost, the advantages exterior insulation offers over interior mean that it is challenging to disregard.

 

Regular installation prices of strong wall insulation.

  • External wall surface insulation: around ₤ 10,000.
  • Inner wall surface insulation: around ₤ 8,200.

* Based upon a regular 3-bedroom, semi-detached residence in Great Britain.

 

We will offer approximately 4 External wall insulation pros locally, who will certainly provide quotations for the work you desire done. You'll get a property visit from specialists in Caerphilly who'll aid you to pick the ideal External wall insulation for your residence before accomplishing the installment. Enter your postal code to start browsing now.

Average External wall insulation cost in Caerphilly

External wall insulation is expensive but effective. Adding it as part of a project can reduce costs. You don't need to do the whole house, maybe just the front. Typically costs are around £5000-£9000.

 

Average price per External wall insulation job in 2025

Avg. price low

Avg. price low
£6,000

Avg. price

Avg. price
£9,000

Avg. price high

Avg. price high
£15,000

£15500

£11625

£7750

£3875

£0

Prices based on actual External wall insulation costs for Caerphilly, as reported by local LeadsDoWork members.

External wall insulation installation cost in Caerphilly 2025

Labour cost £3,000
Material cost £5,500
Waste removal £500
Time frame: 2 - 3 Days

External wall insulation searches in May 2025

External wall insulation Projects in Caerphilly in April 2025

722

Requests for quotations in Caerphilly in April 2025

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Requests for External wall insulation quotations in Caerphilly in April 2025. 0% change from March 2025.

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Requests for External wall insulation quotations in Mid Glamorgan in April 2025. 0% change from March 2025.

Source: Numbers calculated based on the search volumes in major search engines

External wall insulation searches in cities and towns near Caerphilly April 2025

Caerphilly

Caerphilly is a town within the county borough of Caerphilly, in South Wales. It has a populace of 30,388 and is also known as the commuter town for the cities of both Cardiff and Newport. It's traditionally situated in the county of Glamorgan and close to the English border. For any property developments in Caerphilly, do a comparison of quotations from vetted experts in the area and get the very best cost for work you wish completed.

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Similar Customer Enquiries for External wall insulation in Caerphilly

07 Jan

Insulation | External Wall

Caerphilly - CF83

Enquiry from: Mr G

Start Date: Immediate

Hi, we have a 3M X 3m purpose built lean to conservatory, lovely in the summer, cold in the winter, looking for advice and prices on roof insulation, thanks

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21 Feb

Insulation | External Wall

Treorchy - CF42

Enquiry from: Hywel L

Start Date: Immediate

Hi, I've got a small lean to conservatory that's only 1.8m x 1.8m. would you be able to insulate this for me to make it warmer and quieter in the rain? I live in Treorchy in *** Could you please...

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06 Sep

Insulation | External Wall

Barry - CF62

Enquiry from: Gian J

Start Date: Immediate

We have a gable end conservatory with 25mm polycarbonate roof that has yellowed. Roof consists of 8 panels approx. 1850mm x 850mm. We’d like this replaced with Heatguard polycarbonate sheets.

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04 Mar

Insulation | External Wall

Merthyr Tydfil - CF48

Enquiry from: Clive D

Start Date: Immediate

Quote for external insulation to a Terrace house

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16 Jan

Insulation | External Wall

Merthyr Tydfil - CF47

Enquiry from: Andrew W

Start Date: Immediate

Exterior cladding to one maybe three single extension walls

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30 Jul

Insulation | External Wall

Merthyr Tydfil - CF47

Enquiry from: Marta M

Start Date: Immediate

water coming through the wall and underneath the window are you the property owner: owner of the property property age: 1900-30 how many bedrooms do you have: 3-4 bedrooms property type: terrace plea...

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12 Jul

Insulation | External Wall

Barry - CF62

Enquiry from: Patrick S

Start Date: Immediate

supply and fit insulated roof panels to a 3mx5m Edwardian hipped roof..

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15 Jan

Insulation | External Wall

Aberdare - CF44

Enquiry from: Bob J

Start Date: Immediate

I have a Victorian style conservatory approx 4 metres by 4 metres. I am considering insulation and possibly a replacement roof or covering. I require advice and estimates. Thank you.

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14 Mar

Insulation | External Wall

Porth - CF39

Enquiry from: Phil R

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Detached How many bedrooms do you have: 3-4 Property Age: 1900-30 What is your current source of heating for the Renewable Incentive: G...

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13 Mar

Insulation | External Wall

Porth - CF39

Enquiry from: Phil R

Start Date: Immediate

Are you the property owner: Owner of the property Property Type: Detached How many bedrooms do you have: 3-4 Have you thought about Solar panels: Yes Other Forms: Gas Boiler Replacement, Air Source He...

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07 Jan

Insulation | External Wall

Merthyr Tydfil - CF48

Enquiry from: Ashley P

Start Date: Immediate

External wall insulation on solid wall and cavity extension

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24 Dec

Insulation | External Wall

Merthyr Tydfil - CF48

Enquiry from: Brian E

Start Date: Immediate

BISF house external insulation.

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02 Dec

Insulation | External Wall

Pontypridd - CF38

Enquiry from: Nicola A

Start Date: Immediate

Please quote for a lean to style conservatory 3.51m x 3.03m

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26 Nov

Insulation | External Wall

Pentre - CF41

Enquiry from: Mark W

Start Date: Immediate

End terrace house looking for outside wall insulation Are you the property owner: Owner of the property Property Type: Terrace How many bedrooms do you have: 3-4 Bedrooms Property Age: 1900-30 Please ...

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09 Nov

Insulation | External Wall

Treorchy - CF42

Enquiry from: Shane D

Start Date: Immediate

External wall insulation

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07 Feb

Insulation | External Wall

Tonypandy - CF40

Enquiry from: John T

Start Date: Immediate

Stone wall insulation

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06 Nov

Insulation | External Wall

Tonypandy - CF40

Enquiry from: John H

Start Date: 1 to 3 months

We would like a discussion about air source heating for St. Barnabas Church in Penygraig, and systems / costs etc.

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04 Jun

Insulation | External Wall

Merthyr Tydfil - CF47

Enquiry from: Lowri M

Start Date: 1 to 3 months

I want a quote for fully insulating my conservatory roof Are you the property owner: Owner of the property Property Type: Detached How many bedrooms do you have: 3-4 Bedrooms Property Age: Pre 1900 T...

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10 May

Insulation | External Wall

Tonypandy - CF40

Enquiry from: Ian B

Start Date: Immediate

Ewi on pine end

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10 Apr

Insulation | External Wall

Pentre - CF41

Enquiry from: Sian R

Start Date: Less than one month

A quote for external wall insulation for rear end of terraced house Are you the property owner: Owner of the property Property Type: Terrace How many bedrooms do you have: 3-4 Bedrooms Property Age: 1...

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FAQs

Are there grants available for external wall insulation?

External wall insulation works to keep your home cosy and comfy while also helping to cut the energy bills. However with the great benefits also comes great costs, so it’s actually a logical decision to know whether there are grants out there which you’re eligible for to help you handle the cost of the external wall insulation.

There are grants available for external wall insulation, but rarely will you find one that covers the full installation cost. With the help of the government’s Energy Company Obligation (ECO) scheme, a couple of energy companies assist in making your home more energy efficient by offering grants or free insulation. In certain cases whereby you receive particular state benefits, you may as well qualify for a higher grant that’ll cover more of the insulation cost.

However, if your energy supplier doesn’t offer any grant, you need not worry as you can save as much on energy bill after installation. Here’s what insulation can help you save per year on energy bills:

• Floor insulation can help you save within a range of £30 to £75 each year.

• Cavity wall insulation can help you save about £85 to £280 a year.

• Loft Insulation (270mm) can help you save about £135 to £250 a year.

Generally, the amount you’ll be able to save on your energy bills depends mainly on the type and size of your property, as well as how energy efficient it already is without the insulation. In the long run, your external wall insulation will more than give you back your investment on the valuable project through your savings on energy bills. In other words, whether or not you’re eligible for a grant should never stop you from installing an external wall insulation.

How to fit external insulation?

With the title of this blog, do not be deceived into thinking the purpose is to encourage you to install an external insulation by yourself. Even as a competent DIYer, it’s not advisable to buy a couple of materials and start slapping it into the wall hoping for the best outcome. External insulation is by no means a DIY job and without the proper training and experience, it can easily turn out disastrous resulting in loss of time, effort and money in such a valuable project. This blog, however, will give you a great insight on how the installation process works and help maximize knowledge ensuring you do not spend more than necessary.

External Insulation Installation

lRender Test

• This is done to ensure the existing render is good enough for insulation support.

• If positive, the insulation can be applied directly onto it.

• If negative, ensure removal of the old render before fitting the insulation.

lPipework Adjustment & Removal

• Remove all pipework prior to insulation fitting

• Install temporary downpipes to ensure water is not wasted and everything continue to function normally during the insulation fitting process.

lWindow Protection

• Protect the window with a protective layer or film.

lStarter Track Fitting

• Determine level you want the insulation to start (height).

• Fit the aluminium start track or carrier tray at the identified level.

lInsulation Boards Fitting

• Apply a layer of adhesive to the board and glue them to the wall in a staggered pattern.

• Cut to fit round all obstructions and windows.

• File off the edge of the board where necessary using a rasp upon successful fitting of the boards

lMechanical Fixing Inclusion

• Hammer around 10 fixings per square metre into the board.

• This is to secure the insulation boards.

lBeading Fitting

• Add corner beads and stop beads to ensure the insulation is secure and to prevent it from making contact with other materials.

lReinforcing Mesh & Render Addition

• Apply two layers of strengthening properties and between the two layers of render, include a fibre glass mesh.

lPrimer Application

• Paint on the primer

lFinal Render Application

• Choose your most preferred texture and colour as this will be the last coating of the installation process.

lPipework Re-installation

• Re-install all detached pipework at the start of the installation process.

Is external wall insulation safe?

With the numerous benefits that comes with the installation of an external wall insulation in a building, it’s also important to find out whether it’s also safe before proceeding to fit one in your home. Firstly, to ensure that external wall insulation systems are safe, they must be BBA approved, which means they’ve been subjected to a thorough testing by the British Board of Agrement and therefore, suitable for use in UK homes.

Given the fact that cladding materials have recently generated a lot of debate and negative press about how reliable some particular materials are, questions are being asked of the safety and reliability of external wall insulation. However we must clarify that, although external wall insulation can be classified under cladding, it is very different to rainscreen cladding - which caused the Grenfell fire tragedy.

External wall insulation is completely safe. However, when it comes to fire, the safety of your system depends largely on the insulation type in question. The safest type of insulation you can have installed is the Rockwool insulation boards which are rated as Euroclass A1 non-combustible. The board is specially designed in such a way that it contains fire - preventing it from reaching the other areas of the building. They also do not produce harmful emission or smoke when impacted by fire.

Meanwhile, the Wood Fibre, is also a great insulation which is known to char and not burn. Contrary to many beliefs, it actually burns slowly creating this charring effect which produces an oxygen barrier that helps reduce the spread of fire.

To make your system safer, you can also make use of Fibreglass Mesh for reinforcement. It helps to improve the strength of the tensile which promotes the security of the boards attached to the wall.

Does external wall insulation add value to your home?

The answer is yes! Houses whose external walls have been insulated are more valuable than their uninsulated counterparts. And not only does it add to the value of a home, but also significantly reduces the amount of electricity consumption. This is a major turn on for potential investors which implies a greater demand and ultimately, a higher price. The real estate market is a very dynamic one which can be hard to predict at any particular time. The frequent changes in price are usually down to factors beyond the owners’ control, but if you’re looking to put up your house for sale in the near future, it would be a wise decision to consider ways in which you can increase its value. While renovating each room can be on the expensive side, a great solution would be insulate the external walls.

An insulated house is one that is well secured against the harmful impact of extremely high or low temperature, humidity and other atmospheric factors. Hence, the reason why a house with external wall insulation has a greater value which you would not want to miss out on. What’s more? You’ll get a great thermal insulation with the top notch materials like foamed polystyrene, high quality renders, mineral wool or polyurethane.

With an external wall insulation, you know the transaction will always be favourable on both ends. You get to smile to the bank, while the buyer also gets to enjoy great value for every penny spent. To employ the services of a reliable external wall insulation expert, simply conduct an in depth research from family and friends, online and other sources. Go through their online reviews and ask questions to become more familiar with the process and its value-adding potentials.

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