External wall insulation in Wiltshire

External wall insulation Prices in Wiltshire

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External wall insulation in Wiltshire

Are you seeking External wall insulation in Wiltshire? Our network of installers can assist with your project. Every one of our Builder in Wiltshire are checked so you can see local customer reviews, when the business was formed, ratings, satisfaction and cost,  enabling you to make the ideal decision on who to work with. Allow us take the headache out of discovering up to 4 professionals for your External wall insulation task.

A wall surface does lots of points, only one of which is to hold the roofing system up. Considering that the 1970s the wall's function in maintaining the warmth in has become increasingly essential.

External wall surface insulation includes fixing a layer of insulation material to the wall, after that covering it with a special sort of provide (plasterwork) or cladding. The finish can be smooth, textured, coloured, tiled, panelled, pebble-dashed, or do with brick slips.

 

Is External Wall Surface Insulation Worth doing?

There are a number of issues to be resolved prior to mounting exterior wall surface insulation, yet the benefits are numerous, consisting of:

  • Minimizing heat loss and also power expenses
  • Decreasing drafts and raising the sense of convenience
  • It does not disrupt the house while being mounted
  • It does not reduce inner floor area
  • It permits wall surfaces to add to thermal mass (the 'tea cosy' result).
  • It improves weatherproofing and also audio resistance.
  • It enhances the life of the wall.
  • It lowers condensation on inner walls.

 

Is Preparation Approval Required for External Wall Insulation?

Whatever else external wall insulation does, it will certainly transform the external appearance of your house. Most of the times that will imply getting planning authorization before undertaking the job, so do get in touch with your regional authority from the start. For homes in Conservation Areas and for provided structures it is quite possible that authorization will certainly not loom.

Under Building Regulations, if 25 percent or even more of a wall surface is to be insulated on the surface, it is commonly necessary to bring the entire wall up to existing standards-- that makes feeling because, if you're mosting likely to go to the initiatives and also expenditure of insulating on the surface, after that you may also do it well. The thermal performance of the shielded wall surface has to have a U value of no more than 0.30.

 

Just how much will it set you back?

Exterior wall surface insulation is pricey however effective. Adding it as part of a bigger task will certainly lower the expense, plus it does not need to be done to the entire home; an eye-catching front elevation may be better to internal insulation, while less attractive side and also back altitudes can be protected externally. But despite having the higher expense, the advantages external insulation supplies over interior mean that it is hard to disregard.

 

Typical installment expenses of strong wall insulation.

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

* Based on a common 3-bedroom, semi-detached home in Great Britain.

 

We will supply as much as four External wall insulation pros locally, who will supply quotes for the job you desire done. You'll obtain a home visit from specialists in Wiltshire who'll assist you to pick the appropriate External wall insulation for your home prior to accomplishing the setup. Enter your postcode to begin browsing currently.

Average External wall insulation cost in Wiltshire

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 Wiltshire, as reported by local LeadsDoWork members.

External wall insulation installation cost in Wiltshire 2025

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

External wall insulation searches in June 2025

External wall insulation Projects in Wiltshire in May 2025

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Requests for quotations in Wiltshire in May 2025

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Requests for External wall insulation quotations in Wiltshire in May 2025. 0% change from April 2025.

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Requests for External wall insulation quotations in South West in May 2025. 0% change from April 2025.

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External wall insulation searches in cities and towns near Wiltshire May 2025

External wall insulation near you

Wiltshire

The ceremonial county of Wiltshire is situated in the south west of England, neighboring a variety of counties including Dorset, Somerset and Hampshire. The district is most famous for housing the historical Stonehenge and Avebury stone circles. Having a population of around 600,000, Wiltshire has a small population density of only 380 inhabitants per square mile and is positioned 34th in England. Coming from a review in the early nineties, 98% of the population were born and raised in the region whilst nearly 20% had been over sixty-five. Increase the value of your household with good quality house improvements from vetted industry professionals in Wiltshire.

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Similar Customer Enquiries for External wall insulation in Wiltshire

24 Mar

Insulation | External Wall

Westbury - BA13

Enquiry from: Shirley C

Start Date: Immediate

2 walls in older part of my home install external insulation

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28 Jan

Insulation | External Wall

Westbury - BA13

Enquiry from: Shirley C

Start Date: Immediate

External wall insulation in 3 of my outside walls plus rendering for the rest of the house

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29 Jun

Insulation | External Wall

Swindon - SN2

Enquiry from: Richard N

Start Date: Immediate

Conservatory too hot in the summer and too cold in the winter

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14 Nov

Insulation | External Wall

Melksham - SN12

Enquiry from: Richard A

Start Date: Immediate

i'm looking for an external render that will improve the thermal efficiency of the property to get a better epc rating. it's a converted agricultural building of some kind which is now 5 flats. are y...

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19 Oct

Insulation | External Wall

Swindon - SN6

Enquiry from: Adrian Q

Start Date: Immediate

hi, we're looking to have our conservatory roof insulated. it's a small conservatory with eight panes on the roof. i'm happy to provide photos/measurements if that will help. many thanks in advance, ...

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10 Oct

Insulation | External Wall

Chippenham - SN15

Enquiry from: Oliver R

Start Date: Immediate

insulation for conservatory roof (too hot in summer, too cold in winter). email communication preferable unless you ring outside of my work hours as i do not have access to my phone during the day, ca...

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27 Jul

Insulation | External Wall

Trowbridge - BA14

Enquiry from: Linda L

Start Date: Immediate

Internal conservatory roof insulation

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09 Apr

Insulation | External Wall

Warminster - BA12

Enquiry from: Carol T

Start Date: Immediate

external solid wall insulation. not whole house, green home scheme are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 bedrooms property age: 1...

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09 Feb

Insulation | External Wall

Chippenham - SN14

Enquiry from: Dennis A

Start Date: Immediate

looking for replacing polycarbonate with insulated panels. size of lean to approx 2.4 x 2.4 are you the property owner: owner of the property property type: terrace how many bedrooms do you have: 1-2 ...

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02 Feb

Insulation | External Wall

Chippenham - SN14

Enquiry from: Dennis A

Start Date: Immediate

plastic roof changed to insulated are you the property owner: owner of the property property type: terrace how many bedrooms do you have: 1-2 bedrooms property age: 1970-2000 please call to appoint

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18 Dec

Insulation | External Wall

Malmesbury - SN16

Enquiry from: James B

Start Date: Immediate

We are in the process of purchasing this property and would like to make the conservatory useful all year around, we would like to know what our options are and how much it would cost, the conservator...

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13 Nov

Insulation | External Wall

Devizes - SN10

Enquiry from: Antonia D

Start Date: Immediate

looking to add external insulation to our 4 bedroom home. 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 p...

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05 Oct

Insulation | External Wall

Bradford-on-Avon - BA15

Enquiry from: Paul H

Start Date: Immediate

flat roof insulation blown in via holes in ceiling are you the property owner: owner of the property property age: 1930-70 property type: semi detached how many bedrooms do you have: 5+ bedrooms pleas...

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05 Oct

Insulation | External Wall

Salisbury - SP2

Enquiry from: David C

Start Date: Immediate

to have the exterior of my house cladded to half way down and go all the way round are you the property owner: owner of the property property type: semi detached how many bedrooms do you have: 5+ bed...

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30 Sep

Insulation | External Wall

Trowbridge - BA14

Enquiry from: Ashleigh W

Start Date: Immediate

i need my loft/roof insulation done. i'm looking for a quote asap as want to be energy efficient and keep cost of bills down because we have a newborn baby x are you the property owner: tenant (with p...

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30 Sep

Insulation | External Wall

Swindon - SN25

Enquiry from: John W

Start Date: Immediate

a quote to insulate a lean to conservatory l shaped area approx 13 m2 are you the property owner: owner of the property property type: semi detached how many bedrooms do you have: 3-4 bedrooms proper...

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25 Sep

Insulation | External Wall

Salisbury - SP5

Enquiry from: Paul W

Start Date: Immediate

call anytime. type of building: detached number of bedrooms: 5 how became interested in heat pump: upgrade heating quote requested on air source (wet) heat pump, to be supplied and fitted. a...

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12 Aug

Insulation | External Wall

Swindon - SN6

Enquiry from: Allen F

Start Date: Immediate

conservatory roof insulation, lean to, 8m x 3m are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 bedrooms property age: 1970-2000 please cal...

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29 Jun

Insulation | External Wall

Westbury - BA13

Enquiry from: MrsMarcia E

Start Date: Immediate

Quote for conservatory lean to roof insulation size 2.36 x 2.03

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18 Jun

Insulation | External Wall

Corsham - SN13

Enquiry from: Richard L

Start Date: Immediate

quote for insulating the roof of our 3.3 x 2.5 m conservatory, and e possibility of replacing the polycarbonate roof with tiles, or a tile effect.

Post a similar request >

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FAQs

How much does external solid wall insulation cost?

Before the commencement of any project, it’s always best to get an estimation of the cost. However, determining the cost of an external solid wall insulation is not the easiest of tasks as it relies on varying components such as the insulation materials to be used, labour cost and installation as well as the type of decorative finish to be incorporated. And depending on your choice of insulation material, some may need some adhesives while others may require some fixings which also contributes to the differences in price. As a result, the determination of the material cost alone can be tricky and even more so when various materials cover varying areas.

With that in mind, the cost of external solid wall insulation generally ranges between £80 to £100 per square metre2. As a result, a small flat can cost from £6000 to £9000 whereas a large detached house can have a price ranging between £21000 to £23000. To earn back your investment in terms of energy bill savings can take a couple of years, but it’s surely worth the try as there are several other benefits associated with installing an external solid wall insulation system. What’s more? Another huge factor that can influence the cost of your system is also the amount of work that’s required, how easy it is to be accessed by the installers and lots more

If you’re looking to cut down on the cost of your external solid wall insulation, then the best time for an installation might just be when you’re having another decorating or building project done such as fitting a new roof, window painting, installation of solar PV panels and more. This way, you’ll be able to spread the cost and have a greater value for each penny expended.

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!

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.

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.

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