External wall insulation in Portsmouth

External wall insulation Prices in Portsmouth

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External wall insulation in Portsmouth

Are you trying to find External wall insulation in Portsmouth? Our network of installers can help with your job. All of our Builder in Portsmouth are examined so you can see local write-ups, when the business was established, rankings, approval as well as price,  enabling you to make the right decision on who to hire. Let us take the problem out of discovering approximately 4 experts for your External wall insulation project.

A wall does several things, just one of which is to hold the roofing up. Considering that the 1970s the wall's function in maintaining the warmth in has actually come to be increasingly essential.

Outside wall surface insulation entails taking care of a layer of insulation product to the wall surface, then covering it with a unique type of provide (plasterwork) or cladding. The surface can be smooth, distinctive, colored, tiled, panelled, pebble-dashed, or completed with block slips.

 

Is External Wall Surface Insulation Worth doing?

There are a variety of issues to be addressed before installing exterior wall insulation, however the advantages are numerous, including:

  • Reducing warmth loss and energy costs
  • Minimizing drafts and raising the feeling of comfort
  • It does not disrupt your house while being mounted
  • It does not minimize inner flooring area
  • It allows walls to add to thermal mass (the 'tea cosy' effect).
  • It improves weatherproofing as well as sound resistance.
  • It raises the life of the wall.
  • It reduces condensation on inner walls.

 

Is Planning Approval Required for External Wall Insulation?

Whatever else external wall surface insulation does, it will certainly alter the exterior appearance of your house. In many cases that will mean obtaining planning consent prior to taking on the work, so do get in touch with your local authority from the beginning. For homes in Conservation Areas and also for provided buildings it is fairly possible that consent will certainly not be forthcoming.

Under Building Regulations, if 25 per cent or more of a wall surface is to be shielded on the surface, it is normally essential to bring the whole wall surface up to existing criteria-- that makes feeling because, if you're mosting likely to go to the efforts as well as expenditure of protecting externally, after that you might too do it well. The thermal performance of the shielded wall has to have a U value of no greater than 0.30.

 

How much will it cost?

Outside wall surface insulation is costly but reliable. Including it as part of a larger task will decrease the cost, plus it does not need to be done to the whole house; an appealing front elevation might be more suitable to inner insulation, while much less eye-catching side and back elevations can be shielded externally. Yet despite having the greater price, the benefits external insulation uses over internal mean that it is difficult to neglect.

 

Common setup expenses of solid wall surface insulation.

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

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

 

We will give approximately 4 External wall insulation pros locally, who will offer quotations for the work you want done. You'll receive a home visit from specialists in Portsmouth who'll assist you to choose the right External wall insulation for your residence before executing the setup. Enter your postcode to begin searching currently.

Average External wall insulation cost in Portsmouth

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 Portsmouth, as reported by local LeadsDoWork members.

External wall insulation installation cost in Portsmouth 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 Portsmouth in March 2025

6,538

Requests for quotations in Portsmouth in March 2025

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

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Requests for External wall insulation quotations in Hampshire 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 Portsmouth March 2025

Portsmouth

Home to the world's earliest dry dock, the southerly shoreline city of Portsmouth carries a populace of 442,000, making it the 14th greatest city region in the British Isles. As with most of the UK's significant ports, Portsmouth fell victim to a number of Luftwaffe bombings and a great deal of of the city has long been regained. Regardless of the the present day character, now there is still a lot of work for installers and home owners help to make regular requests for household improvementss on our site.

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Similar Customer Enquiries for External wall insulation in Portsmouth

23 Jun

Insulation | External Wall

Portsmouth - PO2

Enquiry from: Charlotte H

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Felt replacing in roof on 2 story flat

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14 Aug

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Portsmouth - PO6

Enquiry from: Aiyampillai T

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pass: 4 - call anytime. type of building: terraced number of bedrooms: 3 how became interested in heat pump: upgrade heating quote requested on air source (wet) heat pump, to be supplied and...

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12 Aug

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Portsmouth - PO2

Enquiry from: Terry W

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pass: 4 - call anytime. type of building: terraced number of bedrooms: 4 how became interested in heat pump: upgrade heating quote requested on air source (wet) heat pump, to be supplied and...

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24 Aug

Insulation | External Wall

Portsmouth - PO6

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External wall insulation Please contact to appoint

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06 Nov

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Gosport - PO12

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I currently have a polycarbonate roof and want a quote to insulate the conservatory

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10 Jan

Insulation | External Wall

Cowes - PO31

Enquiry from: Jemma H

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We are interested in insulating conservatory roof quotes.

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03 Apr

Insulation | External Wall

Ryde - PO33

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04 Jan

Insulation | External Wall

Ventnor - PO38

Enquiry from: Keith W

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We are looking to use the conservatory all year and looking to have this done in next few months

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02 Nov

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Ryde - PO33

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23 Aug

Insulation | External Wall

Newport - PO30

Enquiry from: Antony G

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i would like a quote for roof insulation please are you the property owner: owner of the property property type: semi detached property age: post-2000 how many bedrooms do you have: 3-4 bedrooms plea...

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17 Aug

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Sandown - PO36

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18 Jul

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Seaview - PO34

Enquiry from: Arlene M

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My conservatory is very hot in summer cold in winter we are looking for something to improve usage of room

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27 Apr

Insulation | External Wall

Sandown - PO36

Enquiry from: Adele O

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Conservatory roof insulation

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25 Oct

Insulation | External Wall

Ventnor - PO38

Enquiry from: Andrew B

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conservative roof installation property age: 1970-2000 are you the property owner: owner of the property property type: detached how many bedrooms do you have: 3-4 bedrooms please call to appoint

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28 Sep

Insulation | External Wall

Southsea - PO4

Enquiry from: Julia M

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flat roof insulation quote

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09 Jun

Insulation | External Wall

Ryde - PO33

Enquiry from: Ken M

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roof insulation for a victorian style amdega conservatory, 5.51m x 3.56m. it uses double-glazed glass windows and has two opening roof windows, which i would like to keep. are you the property owner...

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15 Feb

Insulation | External Wall

Cowes - PO31

Enquiry from: Sarah W

Start Date: Immediate

after a loft conversion, we've realised the builders insulated the walls but not the pitched roof (which we have access to for storage). this (plus gaps at the bottom of the pitch) is cause cold draug...

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18 Jan

Insulation | External Wall

Newport - PO30

Enquiry from: Jess C

Start Date: Immediate

hi we have a old house with no roof insulation would like an idea of how much it might be to insulate and seal, its a pretty steep pitch, roughly 14f by 14f many thanks jc are you the property owner: ...

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15 Oct

Insulation | External Wall

Newport - PO30

Enquiry from: Chris V

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i need to improve the epc rating and have been advised that i need room in roof insulation. can you please help with a quote are you the property owner: owner of the property property type: terrace pr...

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27 Sep

Insulation | External Wall

Cowes - PO31

Enquiry from: Wayne S

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Insulation with foil and covering

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FAQs

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.

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.

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.

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!

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