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 April 2025

External wall insulation Projects in Caerphilly in March 2025

722

Requests for quotations in Caerphilly in March 2025

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

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

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

External wall insulation searches in cities and towns near Caerphilly March 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

How good is external wall insulation?

External Wall Insulation (EWI) is the act of insulating a home by fitting insulation to the exterior parts of the building which in turn improves thermal performance, cuts energy consumption ( savings on energy bill) and also adds to the home’s visual appeal. The systems are built in multiple layers, with the insulation board offering a plethora of options with each being suitable to varying projects and their needs. Installing an external wall insulation comes with a variety of benefits, let’s have a look!

• Thermal Performance Improvement

With EWI, the thermal inertia of the walls are greatly enhanced while also restricting the loss of heat. Ultimately, this lowers heating costs, enhances the comfort of indoor thermal and also reduces CO2 pollution.

• Eliminates Noise Pollution

When the noise levels are high, it can have a bad impact on our overall well being. A great way to reduce the disturbances from the outside like traffic noise is by fitting an External Wall Installation system.

• More Comfortable Living Space

Do you know the damp in homes can contribute to respiratory problems? A properly insulated home will greatly limit the impact of condensation by combating the damp issues. As a result, you can always expect your house to be cosy and comfy irrespective of the season. A cooler summer and warmer spring is guaranteed with EWI.

• Enhances The Property’s Visual Appeal

Looking for an excuse to rejuvenate your home’s aesthetic appeal? Well, you can as well try out adding an EWI system. There are a plethora of unique colours and styles you can pick from to beautify your home effortlessly.

• Adds Value To Property

An insulated home will generally cost more than an uninsulated one at the time of resale. Potential home buyers are more interested in the acquisition of a home with an EWI system due to its various benefits - and a higher demand can only imply a higher price!

Do I need planning permission for external wall insulation?

If you want to install an external wall, it is only wise to consider whether or not a planning permission is required in order to avoid a hefty fine. In a great kudos to the government and a welcome relief to home and property owners, the installation of external wall insulation is seen as an “improvement to the house and not an “extension or an “enlargement. Ultimately, this implies that external wall insulation fitting is to be done under permitted development and a planning application may not be required. However, like many other regulations, there are also exceptions to this rule and the main one is if the activity changes the appearance of your property. Properties such as a listed building having tighter regulations may pose some issues. As a result, we’d advise you to consult your local authority to ensure that there’s no fast rule to this topic before commencement of the external wall insulation project.

At the moment, according to the Government Building Regulations, the surface of the entire wall is to be improved to existing standards if the area to be insulated exceeds 25 percent of the wall. In normal situations this is usually the typical case, however to prevent avoidable fines and other possible punishments, it is always best to reach to your local authority and check out the rules guiding external wall insulation in your constituency. Furthermore, since external wall insulation is not a task that’s recommended to be done by yourself, you can also ask the professional external wall insulation fitting company for the applying rules before proceeding. As a good professional, the company should have a better knowledge of the rules and regulation guiding its activities.

Will external wall insulation stop condensation?

Damp issues on a property are usually generated by a lot of factors such as a poor or broken guttering, condensation and lots more. The question arising here is what is the possibility of External Wall Insulation (EWI) preventing condensation? Not only is EWI a reliable way to reduce condensation-caused damp, but it’s also one of the major reasons property owners in solid wall homes consider thermally rendering or cladding their external walls.

Condensation arises as a result of warm moist internal air hitting a cold surface such as the steaming up of both windows and mirror when having a shower. What happens here is the condensation of the water vapour in the air from a gas to liquid in the process of touching the cold surface - one whose temperature is significantly reduced to reach the dew point. At the dew point, condensation is very rampant, and to tackle this issue you’ll have to heighten the wall temperature in order to convert the moisture to vapour and permit it to pass through the wall. And that’s exactly the job of an external wall insulation!

To get started you must ensure that the walls are clean and dry prior to fitting the external wall insulation. The month of May through to September when the weather tends to be dry and more stable are usually the best period to carry out the project. The external wall insulation will function just like a cosy blanket around the building. Ultimately, changing the feel and temperature of the inside of your home. As a result, the previously cold walls will no longer be cold which goes a long way to mitigate the effects of condensation. Furthermore, when an EWI is installed, the rooms of your home will automatically trap more thermal mass as the heat is saved in the walls’ fabric and released back when the temperature drops.

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.

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