External wall insulation in Sevenoaks

External wall insulation Prices in Sevenoaks

Home > Insulation Projects > External wall insulation > Sevenoaks

External wall insulation in Sevenoaks

Are you trying to find External wall insulation in Sevenoaks? Our network of installers can help with your task. Every one of our Builder in Sevenoaks are checked so you can see local write-ups, when the business was created, reviews, satisfaction and day rate,  permitting you to make the appropriate choice on who to hire. Allow us take the inconvenience out of locating approximately 4 professionals for your External wall insulation task.

A wall surface does numerous things, just one of which is to hold the roof up. Given that the 1970s the wall surface's role in maintaining the heat in has come to be progressively vital.

Outside wall insulation involves dealing with a layer of insulation material to the wall, then covering it with a special type of render (plasterwork) or cladding. The coating can be smooth, textured, coloured, tiled, panelled, pebble-dashed, or finished with brick slides.

 

Is External Wall Surface Insulation Well Worth doing?

There are a number of problems to be addressed before installing outside wall surface insulation, however the benefits are numerous, including:

  • Reducing warm loss as well as power costs
  • Lowering draughts as well as raising the feeling of convenience
  • It does not interfere with the house while being installed
  • It does not reduce inner floor location
  • It permits wall surfaces to add to thermal mass (the 'tea cosy' result).
  • It boosts weatherproofing as well as sound resistance.
  • It boosts the life of the wall surface.
  • It lowers condensation on interior wall surfaces.

 

Is Preparation Approval Needed for External Wall Surface Insulation?

Whatever else exterior wall surface insulation does, it will certainly alter the exterior look of your house. In many cases that will indicate obtaining planning permission prior to undertaking the job, so do check with your neighborhood authority from the start. For homes in Conservation Areas and also for listed buildings it is quite possible that authorization will not be forthcoming.

Under Building Regulations, if 25 per cent or more of a wall surface is to be insulated on the surface, it is usually necessary to bring the entire wall surface as much as current requirements-- which makes sense because, if you're going to go to the efforts and also expenditure of insulating on the surface, then you might also do it well. The thermal efficiency of the insulated wall surface should have a U value of no more than 0.30.

 

How much will it set you back?

Exterior wall insulation is pricey however reliable. Adding it as part of a bigger job will reduce the price, plus it does not need to be done to the entire house; an attractive front elevation may be more suitable to internal insulation, while less attractive side and back elevations can be shielded on the surface. But even with the greater expense, the benefits exterior insulation uses over inner mean that it is hard to negligence.

 

Common installment prices of strong wall surface insulation.

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

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

 

We will give as much as 4 External wall insulation pros locally, that will use quotes for the work you desire done. You'll receive a home visit from experts in Sevenoaks who'll assist you to select the appropriate External wall insulation for your house prior to executing the installment. Enter your postcode to start browsing now.

Average External wall insulation cost in Sevenoaks

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 Sevenoaks, as reported by local LeadsDoWork members.

External wall insulation installation cost in Sevenoaks 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 Sevenoaks in March 2025

695

Requests for quotations in Sevenoaks in March 2025

0

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

0

Requests for External wall insulation quotations in Kent 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 Sevenoaks March 2025

Sevenoaks

Sevenoaks is a community and also civil parish in the English region of Kent. Located southeast of London, it is offered by a traveler major line railway and is 21 miles southeast of London Charing Cross. The community additionally provides its name to the Sevenoaks district, of which it is the major community, complied with by Swanley and also Edenbridge. A negotiation in the community can be gone back to the 13th century in a document describing the facility of a market. The building of Knole House in the 15th century even more assisted in the advancement of the town. Sevenoaks was included into the network of contemporary communications when among the very early turnpikes opened in the 18th century. Having a permanent community of 24,987, a big percentage of residents are commuters to London as well as major towns nearby. This has actually led to the town being a location with high house costs, with expanding pressure on the town to establish more residences. Nevertheless, the Fort Halstead protection installment is a considerable employer of citizens from Sevenoaks. A modern shopping center can be located in the town's centre. Bligh's Shopping Development, opened up in 2002, can be accessed from various directions in the community. It includes a number of stores, consisting of mainly nationwide, yet also neighborhood, stores. The design of the growth is styled on somewhat earlier durations yet with modern components. Located to the southeast of the community is Knole Park, within which rests Knole House. This is a 1,000 acre deer park with millions of trees, owned and also maintained by the National Trust. For all of your home upgrades, see to it to use reliable professionals in Sevenoaks to ensure of quality.

Looking for External wall insulation in Sevenoaks?

Get free quotes from local builders

Get free quotes

Similar Customer Enquiries for External wall insulation in Sevenoaks

14 Sep

Insulation | External Wall

Sevenoaks - TN14

Enquiry from: Philip D

Start Date: Immediate

call any-time extent of work: full heating system type of building: terraced fuel: electricity number of radiators: 1 quote requested on central heating system, to be supplied and fitted. are ...

Post a similar request >

10 Sep

Insulation | External Wall

Sevenoaks - TN13

Enquiry from: Claire H

Start Date: Immediate

call any time. extent of work: full heating system type of building: flat fuel: electricity number of radiators: 0 quote requested on central heating system, to be supplied and fitted. are you...

Post a similar request >

02 May

Insulation | External Wall

Sevenoaks - TN13

Enquiry from: Mireya A

Start Date: Immediate

i need a pitched roof insulation between rafters quote, ideally to do it in the next 2 weeks.roughly around 50m2 are you the property owner: owner of the property property type: detached how many bedr...

Post a similar request >

13 Feb

Insulation | External Wall

South Croydon - CR2

Enquiry from: Natalia D

Start Date: Immediate

dear team, i would like to ask for the quick quote for the end of terraced property i croydon. 67 st peters street cr2. we would like to do remedial works to prevent the damp as the external walls ar...

Post a similar request >

01 Sep

Insulation | External Wall

Croydon - CR0

Enquiry from: Martin P

Start Date: Immediate

quote for replacement of existing flat roof with insulated warm roof. are you the property owner: relative of owner property type: terrace how many bedrooms do you have: 3-4 bedrooms property age: 193...

Post a similar request >

23 Jan

Insulation | External Wall

South Croydon - CR2

Enquiry from: John T

Start Date: Immediate

External insulation and render

Post a similar request >

23 Sep

Insulation | External Wall

Croydon - CR0

Enquiry from: Giorgio G

Start Date: Immediate

hi, i have 2 flat roofs, and i would like to insulate them. are you the property owner: owner of the property property type: semi detached how many bedrooms do you have: 3-4 bedrooms property age: 19...

Post a similar request >

07 Jun

Insulation | External Wall

Beckenham - BR3

Enquiry from: David P

Start Date: Immediate

outside walls at the back of the semi detached house need insulatiing are you the property owner: owner of the property property type: semi detached how many bedrooms do you have: 3-4 bedrooms propert...

Post a similar request >

04 Jun

Insulation | External Wall

Croydon - CR0

Enquiry from: Neil S

Start Date: Immediate

i have a green homes grant voucher and they need a quote please. property age: 1930-70 are you the property owner: owner of the property property type: semi detached how many bedrooms do you have: 3-4...

Post a similar request >

02 Feb

Insulation | External Wall

Croydon - CR0

Enquiry from: Katherine M

Start Date: Immediate

external walls are 1 brick are you the property owner: owner of the property property type: semi detached property age: 1900-30 how many bedrooms do you have: 1-2 bedrooms please call to appoint

Post a similar request >

10 Oct

Insulation | External Wall

Caterham, Whyteleafe - CR3

Enquiry from: Khaled M

Start Date: Immediate

solid wall insulation.house gets so cold are you the property owner: owner of the property property type: terrace property age: pre 1900 how many bedrooms do you have: 1-2 bedrooms please call to appo...

Post a similar request >

30 Sep

Insulation | External Wall

Coulsdon - CR5

Enquiry from: Paula B

Start Date: Immediate

conservatory roof insulation are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 bedrooms property age: post-2000 please call to appoint

Post a similar request >

18 Sep

Insulation | External Wall

Beckenham - BR3

Enquiry from: Paul K

Start Date: Immediate

call any-time type of building: detached number of bedrooms: 6 how became interested in heat pump: renewable technology quote requested on air source (wet) heat pump, to be supplied and fitted...

Post a similar request >

15 Sep

Insulation | External Wall

South Croydon - CR2

Enquiry from: Vincent G

Start Date: Immediate

are you the property owner: owner of the property how many bedrooms does the property have: 5+ other forms: solar hot water, ground source heat pumps, air source heat pumps please call to appoint

Post a similar request >

14 Sep

Insulation | External Wall

Caterham, Whyteleafe - CR3

Enquiry from: Matt C

Start Date: Immediate

external insulation for solid wall 1930s property are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 bedrooms property age: 1930-70 please cal...

Post a similar request >

03 Sep

Insulation | External Wall

Beckenham - BR3

Enquiry from: Matthew S

Start Date: Immediate

call anytime. type of building: detached number of bedrooms: 3 how became interested in heat pump: save money quote requested on air source (wet) heat pump, to be supplied and fitted. are you...

Post a similar request >

14 Aug

Insulation | External Wall

Croydon - CR0

Enquiry from: Magnus S

Start Date: Immediate

pass: 4 - customer gathering quotes for mothers property as permission to do the work and paying for the work. call anytime. type of building: detached number of bedrooms: 4 how became interested...

Post a similar request >

09 Jul

Insulation | External Wall

Coulsdon - CR5

Enquiry from: Peter G

Start Date: Immediate

pass: 4 - call any time. type of building: detached number of bedrooms: 5 approximate age of building: 400 years existing heating system: boiler and radiators (mains gas) mains gas available: ...

Post a similar request >

18 May

Insulation | External Wall

Croydon - CR0

Enquiry from: Siobhan J

Start Date: Immediate

solid wall needs damp proofing course are you the property owner: owner of the property property type: terrace property age: pre 1900 property age: 1930-70 please call to appoint

Post a similar request >

12 Oct

Insulation | External Wall

Coulsdon - CR5

Enquiry from: Gemma P

Start Date: Immediate

Insulation for roof... Small conservatory

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 Sevenoaks

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

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 LeadsDoWork it's a big part of my …

Love LeadsDoWork 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.

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.

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.

Placholder Image

Other Top Projects in Sevenoaks

Customer Reviews

Overall rating:


Sevenoaks External wall insulation installers are rated 4.8 out of 5 based on 2 reviews of 17 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 Sevenoaks External wall insulation contractors

Are you a builder in Sevenoaks?

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

Join today