External wall insulation in Llantwit Major

External wall insulation Prices in Llantwit Major

Home > Insulation Projects > External wall insulation > Llantwit Major

External wall insulation in Llantwit Major

Are you seeking External wall insulation in Llantwit Major? Our network of installers can aid with your task. Every one of our Builder in Llantwit Major are inspected so you can see local testimonials, when business was set up, reviews, satisfaction and also day rate,  allowing you to make the right choice on who to work with. Allow us take the hassle out of finding as much as 4 professionals for your External wall insulation project.

A wall does many things, just one of which is to hold the roof up. Given that the 1970s the wall surface's function in keeping the warmth in has ended up being progressively crucial.

Exterior wall surface insulation includes taking care of a layer of insulation material to the wall, after that covering it with a special kind of render (plasterwork) or cladding. The surface can be smooth, distinctive, colored, tiled, panelled, pebble-dashed, or finished with block slips.

 

Is External Wall Surface Insulation Worth doing?

There are a variety of problems to be attended to prior to setting up external wall insulation, but the advantages are numerous, consisting of:

  • Reducing warm loss and also power bills
  • Minimizing drafts as well as boosting the sense of comfort
  • It does not interrupt your home while being set up
  • It does not minimize interior flooring location
  • It allows wall surfaces to add to thermal mass (the 'tea cosy' impact).
  • It improves weatherproofing and sound resistance.
  • It increases the life of the wall surface.
  • It minimizes condensation on inner wall surfaces.

 

Is Planning Authorization Required for External Wall Surface Insulation?

Whatever else exterior wall insulation does, it will certainly transform the outside look of your house. Most of the times that will mean getting planning approval before undertaking the job, so do contact your neighborhood authority from the beginning. For homes in Sanctuary and for noted buildings it is rather feasible that approval will not be forthcoming.

Under Building Regulations, if 25 per cent or even more of a wall surface is to be shielded on the surface, it is normally necessary to bring the whole wall surface approximately present criteria-- which makes sense in that, if you're mosting likely to most likely to the efforts as well as expenditure of protecting externally, then you may also do it well. The thermal performance of the shielded wall needs to have a U worth of no more than 0.30.

 

How much will it cost?

Exterior wall surface insulation is pricey but efficient. Adding it as part of a bigger job will certainly minimize the expense, plus it does not need to be done to the whole home; an appealing front altitude may be more suitable to inner insulation, while much less eye-catching side as well as back elevations can be protected on the surface. Yet despite having the greater price, the benefits exterior insulation supplies over interior mean that it is challenging to disregard.

 

Common setup expenses of solid wall insulation.

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

* Based upon a common 3-bedroom, semi-detached house in Great Britain.

 

We will provide up to 4 External wall insulation pros in your area, that will certainly provide quotations for the work you desire done. You'll receive a home visit from professionals in Llantwit Major that'll help you to pick the appropriate External wall insulation for your house prior to executing the installation. Enter your postal code to begin browsing currently.

Average External wall insulation cost in Llantwit Major

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 2026

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 Llantwit Major, as reported by local LeadsDoWork members.

External wall insulation installation cost in Llantwit Major 2026

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

External wall insulation searches in June 2026

External wall insulation Projects in Llantwit Major in May 2026

834

Requests for quotations in Llantwit Major in May 2026

0

Requests for External wall insulation quotations in Llantwit Major in May 2026. 0% change from April 2026.

0

Requests for External wall insulation quotations in South Glamorgan in May 2026. 0% change from April 2026.

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

External wall insulation searches in cities and towns near Llantwit Major May 2026

Llantwit Major

Llantwit Major is a small seaside town and community in the Vale of Glamorgan, Wales, resting on the Bristol Channel shore. It is one of four towns in the Vale of Glamorgan and the 3rd greatest by population (13,366 (2001) after Barry and Penarth. The town's name in Welsh, Llanilltud Fawr, is derived from the name of Saint Illtud, who arrived at the region from Brittany, Gaul. He established the monastery of Illtud and the college connected to it, Cor Tewdws, which would end up being one of the most esteemed Christian schools of the times. At peak it pulled in over 2000 students, including princes and various eminent clergymen, some now revered as saints. The modern-day town of Llantwit established quickly in the 20th century to accommodate Royal Air Force personnel from the base developed at neighboring St Athan, however it keeps its medieval cobbled streets and structures of the 15th and 16th centuries. Collugh Beach is a popular surfing site and has the remnants of an Iron Age fort and some of the finest examples of Jurassic-period fossils in Wales. The pebble beach and its remarkable clifftops are part of a 14 miles (23 kilometre)-long shoreline protected under the Glamorgan Heritage Coast, which stretches from Gileston in the east to Newton Point beyond Southerndown in the west. Llantwit Major is mostly dependent on local retail and incomes from additional afield. Most of the inhabitants commute to work elsewhere, primarily Cardiff or Bridgend. Through the summer season tourism is essential to the town which has "The Precinct", Rainbow Plaza and a number of bars and eateries. Of note are the Old Swan Inn, Old White Hart Inn, The Tudor Tavern, and the 17th century West House Country Hotel Heritage Restaurant. For all your home renovations, make certain to identify respected specialists in Llantwit Major to make certain of quality.

Looking for External wall insulation in Llantwit Major?

Get free quotes from local builders

Get free quotes

Similar Customer Enquiries for External wall insulation in Llantwit Major

22 Mar

Insulation | External Wall

Llantwit Major - CF61

Enquiry from: Julie L

Start Date: Immediate

i am looking to warm wrap externally and insulate flooring. are you the property owner: owner of the property property type: detached how many bedrooms do you have: 1-2 bedrooms property age: 1930-70 ...

Post a similar request >

23 Aug

Insulation | External Wall

Bridgend - CF32

Enquiry from: Daniel R

Start Date: Immediate

External wall insulation with cladding and some rendering

Post a similar request >

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.

Post a similar request >

11 Jun

Insulation | External Wall

Porthcawl - CF36

Enquiry from: Stephen J

Start Date: Immediate

External wall insulation and floor insulation

Post a similar request >

25 Oct

Insulation | External Wall

Cardiff - CF15

Enquiry from: Jo D

Start Date: Immediate

large l shaped conservatory to be insulated with sky lights and spotlights. are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 bedrooms proper...

Post a similar request >

24 Nov

Insulation | External Wall

Porthcawl - CF36

Enquiry from: Karen W

Start Date: Immediate

i am the managing agent for this property, the conservatory is very cold and s part of the kitchen. we think insulated panel would make a big difference. can someone please get in touch to arrange a q...

Post a similar request >

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..

Post a similar request >

17 Aug

Insulation | External Wall

Porthcawl - CF36

Enquiry from: James H

Start Date: Immediate

i have a edwardian conservatory which is approx 12ft by 19ft it is quite cold in the winter and to hot in summer we are looking at ways we can improve above . please send approx quote to above email ...

Post a similar request >

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...

Post a similar request >

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...

Post a similar request >

21 Jan

Insulation | External Wall

Bridgend - CF31

Enquiry from: Philip A

Start Date: Immediate

Hi. Our conservatory is too hot in summer, and too cold in winter, so your solution looks ideal to solve both issues. It’s is 6m wide, 5m deep on one side and 3m deep on the other. Approx area is a...

Post a similar request >

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

Post a similar request >

08 Jun

Insulation | External Wall

Bridgend - CF31

Enquiry from: Samantha B

Start Date: Immediate

Roof insulation so we can use the conservatory all year round. Homeowner Supplied and Fitted Please Call to Appoint

Post a similar request >

05 Apr

Insulation | External Wall

Bridgend - CF31

Enquiry from: Brian H

Start Date: Immediate

superquilt with a p v c board finish a 3 meter wide and 3 meter long victorian conservatory

Post a similar request >

07 Feb

Insulation | External Wall

Tonypandy - CF40

Enquiry from: John T

Start Date: Immediate

Stone wall insulation

Post a similar request >

22 Nov

Insulation | External Wall

Bridgend - CF31

Enquiry from: Mark B

Start Date: Immediate

We are looking for conservatory insulation as we have recently started slowly renovating the property we purchased 3 years ago. Looking for it to be done at a realistic, reasonable cost as its not som...

Post a similar request >

09 Feb

Insulation | External Wall

Bridgend - CF32

Enquiry from: Aled W

Start Date: Immediate

Recently renovated the house, Took back to shell and rendered and plastered etc... Had new flat roof fitter at back.... but no insulation was installed at the time. Need insulation Are you the p...

Post a similar request >

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.

Post a similar request >

05 Nov

Insulation | External Wall

Bridgend - CF31

Enquiry from: Sarah B

Start Date: Immediate

Quote for insulating conservatory

Post a similar request >

10 May

Insulation | External Wall

Tonypandy - CF40

Enquiry from: Ian B

Start Date: Immediate

Ewi on pine end

Post a similar request >

Local & reliable builders near me

Tell us about your external wall insulation project

Answer a few quick questions, so we can match you with local builders who can help.

Find up to 4 builders in Llantwit Major

Get free, no-obligation local external wall insulation quotes from 4 verified builders working in Llantwit Major.

Hire with confidence

Compare customer reviews, services and prices, and choose the right tradesperson for you.

Our reviews

Average

Would highly recommend

Would highly recommend, they found me a firm which I was happy with a quote they give me and went ahead and had my job done within 2 days of enquiring.

Good easy way to find a selection of…

Good easy way to find a selection of trades you need all in one place.

Love Local Quotes it's a big part of my …

Love Local Quotes it's a big part of my Business I would recommend to anyone

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.

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.

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.

External wall insulation

Other Top Projects in Llantwit Major

Customer Reviews

Overall rating:


Llantwit Major External wall insulation installers are rated 0 out of 5 based on 0 reviews of 3 pros.
The LeadsDoWork rating and review is an overall rating based on verified reviews and feedback from the customers with External wall insulation projects that have been connected with External wall insulation pros to help them. All External wall insulation contractors All Llantwit Major External wall insulation contractors

Are you a builder in Llantwit Major?

We can help you get more external wall insulation work with our qualified job leads and boost your business.

Join today