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Scotland Grants For Insulation – UK Insulation Grants

Park Home Grants 2

Scotland Grants For Insulation -our Top 5 Free Insulation Grants

  1. Loft Insulation
  2. Wall Cavity Insulation
  3. Internal & External Wall Insulation
  4. Room in Roof Insulation
  5. Flat Roof Insulation

5 Reasons Why you should Insulate Your Home Today

1 A quarter of all heat generated is lost through your roof. That is a lot of cash wasted!

2. You will save over £300 a year by insulating your walls and loft space. That money will be better spent on a new holiday !

3. Your home will be a lot of cosier and comfortable in the cold and dark winter nights.

4. Your well insulated home will be more attractive to homebuyers when you do come to sell.

5. A lot of homes can still their their loft done for free!



How To Apply For An Eco 4 Grant

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Free Insulation Grant 2023

You may have heard about the free insulation grants over the years and wondered if it was genuine or not.

The good news is that the Free Loft & Wall Insulation Scheme is 100% real and still available for 2022 .

I personally have been responsible for thousands of loft installs over the last 9 years and is currently how I earn a living.

There Is No Catch- You will qualify or you wont.


Who Can Apply For A Free Insulation Grant?

Home Owners & Private rented homes can apply for a FREE INSULATION if:

  • Your home must have no or minimal insulation and have all insulation that is required ( whole house approach)
  • Your Home Has An Epc Rating Of D – E -F -G
  • You must be in receipt of a qualifying benefit
  • The property must be owned or be rented from a private landlord.
  • Social Housing & Housing Associations are not eligible sorry


Which Benefits Qualify For A Grant

  • Child Benefit
  • Tax Credits – Child & Working
  • Employment & Support Allowance
  • Housing Benefit
  • Income Support
  • Job Seekers Allowance
  • Pension Credit – Guarantee & Saving
  • Universal Credit

Home Insulation

Home Insulation is very important as it helps to keep your rental property feeling cosy as well as cutting your tenants ever increasing energy bills.

It is very important that you check your loft and walls for adequate insulation as you lose the majority of your expensive heat through both mediums.

Your walls and loft will greatly benefit from having insulation retrofitted.

Energy companies offer free insulation grants to help you make your home more energy efficient, thanks to the government’s Energy Company Obligation (ECO) Scheme.

This blog will inform you about why you need to insulate your home and if you are eligible for a free landlord grant

All Insulation is generally free of charge except for EWI to all tenants in receipt of a qualifying benefit or on a low income.


How To Apply For An Eco 4 Grant

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Insulation Facts Up To 2022

70 % of homes (14.5 million properties) now have cavity wall insulation 66% of homes ( 16.8 million properties ) now have loft insulation 9 % of homes ( 794,000 properties ) now have solid wall insulation


What Are The Benefits Of Insulation For Your Home?

Insulation creates a barrier for your expensive heat to have to pass which will keep your heat in the house for longer instead of it escaping through the roof.

The Energy Saving Trust calculate that the average saving per year from installing loft insulation is approximately £240.

For Solid Wall you will save up to £500 per year Your house will feel warmer during cold weather and improve the energy efficiency rating of your home.

You will also reduce your carbon footprint by around 990kg of CO2 per year compared to an uninsulated loft.


Typical Heat Loss From Your Home

Heat loss will depend on your house type but as a rough guide you can expect to lose

  • 25% of its heat through the roof
  • 33% through the walls
  • 15% through the floors
  • 15% through draughts
  • 20% through windows.


Why A Government Grant For Free Insulation?

Free Government Grants For Home Insulation are available in England, Scotland and Wales and are funded via the Energy Company Obligation (ECO) to improve the efficiency of homes.

These Grants have helped many people to lower their heating bills and are funded by a levy to every fuel bill in the uk .

This is in part to achieve the government’s goal of being net carbon neutral by 2050 but as a main aim of tackling fuel poverty across the UK.

There have been over 2.4 million free installations of insulation since the government brought in the scheme.

How To Apply For An Eco 4 Grant

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How much does it cost to insulate your House?

As A Rough Guide here is a table of insulation costs on a private basis depending on property type.
LOFT INSULATION – £400 -£600
FLAT ROOF INSULATION-£1500=£2000 Always worth trying to get a grant if possible

What Bill Savings Can I Make By Insulating?

How much insulation can save you depends on the size and type of your home, and how energy efficient it is already

Over time, insulation will pay for itself with the savings you make on your energy bills, so it’s worth doing.



Loft Insulation Bill Savings – between £135 and £250 a year

Cavity Wall Bill Savings – between £85 and £280 a year.

Floor insulation: – between £30 and £75 a year

Internal / External Wall Insulation: Between £300 – £600 per Year

Does The Insulation Grant Have To Be Paid Back.

This is a grant so it does not have to be repaid and you will not be expected to have to pay the insulation installer.

The installer will claim the grant on your behalf and ensure your 25 year warranty is registered.


Are There Grants For Insulation In Scotland?

Yes. Scotland does qualify under the Eco Scheme for Free Insulation as well as Wales too.

Scottish energy Grants seem to have all of Scotland sewn up and we recommend you contact them if you live in Scotland as they their contractors will be a lot quicker than ours.

Free Loft Insulation

Grant Value Over £600 supplied & fitted Bill Savings – Up to £150 per year in reduced bills. Time To Fit – Usually takes 2 – 3 hours to fit Warranty –

Comes with a 25 yr warranty Do You Qualify – You need to receive a qualifying benefit and your existing insulation needs to be below 100 mm to qualify


How To Apply For An Eco 4 Grant

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Free Government Grant For Roof Room Insulation

If you have an attic room (accessed by a solid staircase) you could be eligible for significant improvements to bring the attic space up to current building regulations which can then be used as a habitable room.

Insulated plasterboard ifs fitted to the walls and ceiling and then the whole room is replastered. This is worth up to £10000 for some properties so do check if you can apply.

Value – £3000 – £10000 supplied & fitted Bill Savings Up to £500 per year in reduced bills. Time To Fit – Usually takes 2 – 3 days to fit depending on property size. Warranty – Comes with a 25 yr warranty Do You Qualify – You need to receive a qualifying benefit and your walls need to be solid with no existing insulation fitted.

Free Government Grant For Cavity Wall Insulation

Your walls are injected with a loose fill of beads to creat a barrier to heat loss. Very effective way to insulate your walls.

Bill Savings Up to £200 per year in reduced bills. Time To Fit – Usually takes 3 -5 hours to fit depending on property size. Warranty – Comes with a 25 yr CIGA warranty Do You Qualify – You need to receive a qualifying benefit and your walls need to have a cavity with no existing insulation fitted.



Insulation For Homes with Suspended Timber Floors

If your home has suspended timber floors on the ground floor theres a good chance that they’re pretty draughty and uninsulated. You can add rolls of fibreglass wool between the floor joists held in place with chicken wire or use Kingspan boards cut to size and held up with wooden struts across the joists.

Free Government Grant For Internal Wall Insulation

Value – £3000 – £10000 supplied & fitted Bill Savings Up to £500 per year in reduced bills. Time To Fit – Usually takes 2 – 3 days to fit depending on property size. Warranty – Comes with a 25 yr warranty Do You Qualify – You need to receive a qualifying benefit and your walls need to be solid with no existing insulation fitted. As a guide, houses built before 1930 are often solid wall and would be perfect for External Wall Insulation. Your property wall can be made of concrete, stone or bricks and should not be a listed building or in a conservation area.


Solid Wall Insulation Grant

To qualify for a solid wall insulation grant, your walls will need to be solid and made of concrete, stones or bricks with good access around your property. You must also be the owner of your property or have permission from your landlord for the work to take place.
Having external wall insulation fitted will reduce your bills massively and could save you up to £500 per year!
Value – £3000 – £10000 supplied & fitted Bill Savings
Up to £500 per year in reduced bills.
Time To Fit – Usually takes 2 – 3 days to fit depending on property size. Warranty – Comes with a 25 yr warranty Do You Qualify – You need to receive a qualifying benefit and your walls need to be solid with no existing insulation fitted.

How To Apply For An Eco 4 Grant

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British Gas Boiler Grant


Are you thinking of replacing your old boiler?

British Gas Are indirectly funding thousands of people via the ECO Scheme to get a brand new boiler fully fitted worth £2400 FREE OF CHARGE!

You may have heard of the government funded boiler replacement schemes over the last few years and wondered if they were real and could you apply.

this scheme is 100% real.

How Does The British Gas Boiler Grant Work?

Under the free boiler scheme low-income households in receipt of a qualify benefit are entitled to a Free upgrade to an A Rated energy-efficient boiler.

As a boiler is responsible for the majority of a home’s heating bill, it makes sense to have a boiler as efficient as possible fitted.

Most people cannot afford to pay up to £2300 for a new boiler to be fitted ( average cost ) so a big ticket item like this would not be changed unless it was completely broken.
Many homes have boilers over 15 years old limping on and wasting lots of gas which is why the government have allocated funding for assisting with the cost.


Who Qualifies For The New Boiler Grant ?

The eligibility has changed for the Government Free Boiler Scheme for 2023

To qualify you have to meet all of the following conditions :

  • You are A HomeOwner or live with the home owner
  • You receive a qualifying benefit
  • Your Boiler is non condensing ( over 17 years old without a plastic pipe leading to outside ) OR
  • You have a BACKBOILER fitted behind the fire
  • Your Home Is Epc Rated E -F -G

Are There Grants For Foam Insulation?

There are at present no grants for foam insulation.

We strongly recommend you do not have foam insulation in your home at any cost. The link below will show you that foam has no use in a domestic home and you should use traditional tried and tested insulation instead.


Yes they do!
Pensioners, whether they are a home owner or a renter, are eligible for home improvement grants including free insulation through this government-backed, funded scheme too.
Pensioners will need to be claiming Pension Credit either savings credit or Gaurantee Credit to qualify.
OAPs can also claim down the Local Area Delivery Route where no benefits will be needed.

How Does Insulation Work:

The sole purpose of the insulation in your home is to slow down (as much as possible) the transfer of the heat from inside your home to outside.

Materials with a low U Value are the best types of insulation .i.e foam based materials are very low U Values and are great insulators. Insulation works by reducing:

  • Conduction, by having very little mass.
  • Convection, by trapping air molecules and restricting its movement.
  • Radiation, by having just enough mass to slow the transfer of heat by radiation

How To Apply For An Eco 4 Grant

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Types Of Insulation Used For Homes

  • Rigid Foam Insulation– rigid insulation is commonly used in the walls as they are built, underneath floors and in suspended ceilings
  • Wool Type loft insulation – this is the most common form of loft insulation for cold roofs and is typically Fibreglass or Mineral fibre based
  • Aluminium foil backed insulation – If your loft area has “warm roof” insulation (insulation laid between the rafters in the roof rather than the joists, this is likely what you have although I also see Fibreglass wool used.
  • Multilayer foil insulation – not as common but is used in more specific applications where other forms of insulation may not be suitable.
  • Blown In Insulation – for cavities. Usually rockwool or bead
  • Foam Spray Insulation

Can You Get Free Insulation if not on benefits?

Some councils do a scheme where you dont need to be on benefits to receive free insulation. Ask your local council if they operate a LA FLEX Scheme.


How Do I Apply For Free Insulation ?

Fill In The From Below today and we will check your property and the size of grant awarded. At the time of writing Feb 2022, there is only funding for Off Gas Homes such as electric heated etc.

Depending on funding levels ( which change all the time) we will let you know if you can get free insulation or if you need to make a small contribution

Free Cavity Insulation

British Gas Free Cavity & Loft Insulation

British Gas Free Cavity & Loft Insulation

British Gas Free Cavity Insulation

It’s likely that you qualify for government grant for cavity wall insulation if you own or rent a property that is ideally electrically heated and you receive the right combination of benefits.

With energy costs continuing to rise, reducing your heating bills by insulating your home effectively is a smart way to save money and fight the energy crisis in 2022-2023.

You can save up to 30% per year on your energy bills with our modern cavity wall insulation in your home.

Demand and availability of government grants are very limited and they will get harder to get as we approach winter.

Read more about how the Free UK Government insulation scheme works as part of the Energy Company Obligation .


How To Get Free Cavity Wall Insulation ?

Filling in a short form on this page is the simplest way to receive your free insulation .

Apply Today If You :

  • Receive Qualifying Benefits
  • Are A Homeowner or Private Tenant
  • Have An Off Gas Heated Home

How To Apply For An Eco 4 Grant

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Cavity Wall Insulation – A Guide For 2022

What Is Cavity Wall Insulation ?

Cavity Wall Insulation is a heat saving measure you can have installed to your property (assuming you have cavity walls of course) which should reduce your heating bills by around £200 -£300 per year.

This is one of the best home improvement measure you can make to your property and will pay for itself withing 3 years of installing with reduced heating bills.

The most popular type of insulation obtained through the ECO grant is cavity wall insulation.

We recommend you should have this measure to your home as it does make a great difference to the enjoyment of your home.

The cavity between the walls is filled with an insulating material (usually rockwool or bead) which serves as a barrier to allowing the heat to escape through the walls.

Cavity wall insulation usually costs around £20 per m2 and you can expect to pay around £1200 for an average semi if you pay privately.

Cavity Wall insulation is usually made of fibre glass or bead and is injected into your cavity walls to provide a barrier to heat escaping to outside.

Holes are drilled to access the cavity which are then closed up with mortar. The job usually takes about 4 hours to complete


Why Have Cavity Wall Insulation?

A warmer home – more than a third of heat lost from an uninsulated home escapes through the walls, and up to a quarter through an uninsulated loft. Having the walls insulated will ensure your home remains warm without the need to turn on your heating.

Reduced Bills – not only will you benefit from a warmer home for you and your family, you could save between £90 to £270 per year depending on your property type and size. A loft insulation could also save you up to £65 a year.

Doing your bit for the environment – with an increasing pressure on households to reduce their carbon footprints, homes with cavity wall insulation will be reducing the amount of energy used to heat the home as well as their carbon footprint.

The Benefits of Cavity Wall Insulation

Save you around £140 a year.
Average cost is £8 per square meter. Average house will cost £400- £500

Cavity walls insulation is one of the most cost effective ways to save energy and money in your home. Around 35% all the heat lost in an un-insulated home is through the Cavity walls. 90% of homes have now had it installed.

Uninsulated walls account for almost a third of the heat lost from a home and uninsulated lofts account for up to 25% of heat loss.

There are many benefits to having cavity wall insulation (CWI) in your home and together with Loft Insulation they are the most cost-effective and long-lasting upgrades to your property you can make.

Indeed you will be able to recoup the costs of fitting both cavity wall insulation and loft insulation in under 5 years thanks to the savings you’ll make on your energy bills.

Your central heating system won’t have to work as hard to achieve comfortable temperatures, saving energy and money on utility bills, and reducing your carbon footprint.


1. You can save up to £300 a year on your energy bills.

2. You will improve your home energy efficiency rating making your house more attractive to home buyers

3. Your Home will get warm more quickly and keep the heat in for longer.

4. Your home will be a lot cooler in the summer as the insulation helps to stop heat entering the house.

5. You will reduce your carbon footprint with more efficient fuel consumption


How Does Cavity Wall Insulation Work?

Cavity Wall insulation works by insulating the gap between your cavity walls with an approved insulating material such as bead, mineral wool.

This forms a barrier to heat loss and so keeps the expensive heat in your property for longer.

This should save you up to £300 off your heating bills per year.



How To Apply For An Eco 4 Grant

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What are Cavity Walls & Why Do Buildings Have Cavity Walls?

Homes and other buildings made from the 1920s and onwards were made with cavities ( a 2 -3 inch gap between the 2 walls held together with wall ties ) to prevent rainwater from penetrating through the outer wall to the inside of the property.

Walls were built this way to stop damp from penetrating the house so that any moisture penetration would drop into the cavity harmlessly.

However, these cavities were found to let heat escape quite quickly, so insulation was introduced in the 1960s to form a barrier to stop heat escaping to the outside.

This insulation was usually installed by drilling a hole in the walls and then insulation was pumped in to the cavity until it was full.

This process formed a blanket inside the cavity which trapped air between its fibres to create an ‘air matrix’, so reducing heat loss.


Does your walls have cavities?

Most homes built post-1920 are very likely to have cavity walls.

You can easily tell if your home has cavity walls by measuring their width by the windows or doors. A solid wall will measure below 260 mm and a cavity wall is usually around 300 mm.

You can check by :

  • measuring the thickness of the wall – if your wall is more than 260mm thick at an outside door or window, then it probably has a cavity.
  • Looking at the brick pattern – If the outer brickwork forms an even pattern with every brick laid lengthways, then they will probably have cavities.

Solid Walls – the bricks are usually in an uneven pattern, with some bricks being laid endways. The measurement is usually 9 inch.

Cavity Walls – Modern homes are built using cavity walls, which feature an inner blockwork wall, with a cavity and an outer wall of brick or rendered blockwork.

The gap in between the 2 walls is filled with insulation batts to building regs

What Is The Cost Of Cavity Wall Insulation

The costs of having cavity wall insulation does depend on the size of your home and the type of insulation used.

Polyurethane foam – you should expect to pay around £20 – £25 per square meter

Glass wool is the cheaper option at around £13 – £18 per m2.

You can calculate the Approx meterage of your home by measuring all your outside walls and then deducting the volume of your doors and windows. Times this by £20 to give you an average cost.

Example property types – Average cost guide

Detached property £725

Semi-detached property £475

Mid-terrace £370

Bungalow £430

Flat £330


How To Apply For An Eco 4 Grant

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Are All Walls Suitable for Cavity Wall Insulation?

Walls need to be in a good condition to have insulation fitted, otherwise all the benefits will be lost.

Defects like cracked render, missing pointing, leaky gutters or damp patches inside can all impact on efficiency and does lead to damage if left unresolved.

Checks are always carried out ( using a borescope) before installation to ascertain the wall type and if suitable for CWI.

Theses checks include checking for

  • If the wall has a cavity
  • Damp or other wall defects
  • If insulation is present
  • Rubble in the cavity

If you’re in a flood risk zone or somewhere exposed to driving rain, such as by the sea, then your home might not be suitable for cavity wall insulation.


What types of cavity wall insulation are there?

There are a number of different materials used for insulating cavity walls

  1. Blown mineral wool insulation

Mineral wool is be blown into a property’s cavity walls to form an energy efficient insulating layer.

The cavities need to be clean and free from obstruction, to ensure a full fill and no cold spots

  1. Polystyrene bead insulation

This method involves blowing small balls of expanding polystyrene insulation (EPS) into existing cavity walls through small holes drilled into the wall.

Beads are quick to install, high performing and don’t absorb moisture.

Some beads have glue which bonds them together.

  1. Injected foam insulation

Polyurethane foam which is pumped into a cavity wall which solidifies and form a thick, water-repellent insulating barrier with impressive thermal performance.

Usually used where a property is in a flood risk area or has uneven cavities.

  1. Cavity insulation for new walls

Sheets of insulation batts are fitted straight into the cavity as the walls are built.

Partial fill solutions leave a 50mm gap between the cavity and external wall to reduce the chance of moisture penetrating into the home.


What Warranty Do You Get With Cavity Insulation

Cavity Insulation Guarantee Agency (CIGA) or National Insulation Association (NIA all give a 25 year warranty if the property uses one of their approved installers.


How Is CWI Installed?

Holes are drilled into the outside of the wall and feed the insulation into the cavity, taking care to ensure every nook and cranny is filled.

Once complete, the holes are filled up. The installation should only take a couple of hours, so there’s minimal disruption to your daily life. If required, any extra ventilation should now be installed.

How To Apply For An Eco 4 Grant

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Properties Not Suitable For cavity wall insulation

  • timber framed,
  • metal framed
  • stone properties
  • solid wall
  • flats – permission must be sought by all of the adjoining properties that share the cavity walls
  • damp properties

A Free survey is usually carried out to check suitability.


What maintenance is required for cavity wall insulation?

We recommend good ventilation and staying on top of general property maintenance to ensure no water ingress into your walls will be sufficient.

We recommend you look for wall cracks, broken window seals, leaking gutters and make sure vents aren’t blocked.

Is Ventilation needed For cavity Wall Insulation?

Good ventilation is essential when Installing cavity wall insulation as the extra warm air ( after installation ) will carry more moisture so extra ventilation will be required to keep mould and condensation at bay.

Ventilation is now added for all new installs.


How does cavity wall insulation affect my EPC rating?

Upgrading your cavity walls with insulation will have a positive impact on your EPC rating, and could even raise an uninsulated house up by an entire band.


How To Apply For An Eco 4 Grant

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Do new builds come with cavity wall insulation as standard?

Every newly built house – whether it’s constructed with cavity walls or another method – must meet or exceed the Building Regulations for energy efficiency under Approved Document L.

Do You Need Air Bricks For Cavity Insulation?

We recommend that existing air bricks are cleared and other installed if needed to allow your cavity to breath and vent any moisture to outside.

Does cavity wall insulation cause damp ?

Over 90% of homes in the UK have had CWI installed now and there is a tiny % of cases where it has been found to cause damp and mould.

This is mainly due to the way it has been installed and possibly has been installed without a proper inspection prior to its install.

If you are experiencing damp, you should contact CIGA who will arrange a free extract and refill if found to be necessary under its 25 year warranty.


Cavity Wall Insulation How Long Does It Last?

CWi should last as long as the building it has been installed into. This is provided it has been installed correctly to regulations and there was no existing problem present at the time of install.

Realistically, you should expect at least 25 years , which is the length of its usual warranty.


The Best Insulation for Cavity Walls

Traditional Cavity Wall Insulation for homes built from the 1930s onwards uses Blow in Rockwool or bead insulation .

A 25 mm hole is drilled into your walls and the insulation material is blown into the cavity filling all the crooks and crevices.

This insulation is easily retrofitted to your home and takes only a few hours to do.

New builds from The 90s onwards usually have insulation batts fitted as the walls are built. We recommend that you check your walls to see if this is the case as some homes have been missed in the early days.


Wall Cavity Insulation Removal

Cavity wall extraction is the removal of the insulation (usually Rockwool or bead insulation ) from cavity space between your wall using specialist equipment.

Cavity wall insulation removal is usually required when the insulation previously used is no longer effective or you are having problems with condensation and mould.

This guide is to help you understand the process of cavity wall extraction, the costs associated with it and the benefits to having this done.


How To Apply For An Eco 4 Grant

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Benefits of Getting Cavity Insulation Removed

The benefits are :

  • Warmer house with reduced heat bills.
  • Less chance of mould appearing in the future
  • Reduced chance of damp or make removal of damp easier
  • Increase Of House value .
  • Can contribute to helping with health issues.
  • The effects of wrongly installed and failed insulation are almost immediately resolved once the cavity wall insulation is removed and the property is cleaned and aired.


When is Cavity Wall Extraction Required?

Cavity wall extraction is needed when you suspect you have failed cavity wall insulation or the insulation has been poorly installed.

This measure is becoming increasingly popular with home owners who are having problems with their walls such as damp, cold spots and mould.

Removing cavity wall insulation allows you to make room for more effective insulation, which in turn can save you money, reduce energy usage, and remove any potential damp.

Grants are available too for many people on a low income.


Why Might I Need Cavity Wall Extraction?

Cavity insulation fitted in the past used less efficient materials which had a much shorter lifespan.

Whilst this measure has always come with a 25 year warranty, the materials used didn’t use to have the same strict KIWA certifications that it now comes with.

The main causes of inefficient insulation are:

  • Replaced windows can cause the insulation to fall out causing void areas. This will allow damp transfer from the outer skin.
  • Flooding is a major cause needing insulation removed as the water gets into the material and creates damp allowing water to pass from the external wall into the home.
  • Incorrect installation or means the effect on your home is less than what it should be or non-existent. This can happen if the drill holes to insert the insulation where incorrectly spaced and would lead to cold spots.
  • Incorrect materials were used such as urea-formaldehyde. This breaks down to dust-like particles and sits at the bottom of the cavity giving no insulation benefit at all.


How Can I Tell if I Need Extraction Of Insulation?

Tell-tale symptoms will include

  • Cold patches on your internal walls
  • A build-up of condensation and mould on internal walls
  • Decorative surfaces becoming stained with paint flaking off
  • You have damp areas and your property smells of damp
  • Your walls are wet due to flooding, faults in brickwork or burst pipes
  • You are in a high risk area near the sea .
  • Feel like your house isn’t retaining heat and your energy bills seem to be more expensive than they should be
  • Your external walls have been damaged

Have an Insulation Survey

Engage a reputable insulation company to investigate your walls.

They will create a heat loss survey using thermal cameras and borescopes which will highlight any cold spots in your walls and if extraction is necessary.


What Materials that can be extracted?

Expanded polystyrene
Loose and/or bonded Urea Formaldehyde Insulation
Rockwool Mineral Fibre
Whitewood Glass Mineral Fibre


How To Apply For An Eco 4 Grant

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How Is The Insulation Removed?

All work should be carried out by OSCAR accredited technicians who will carry out the work effectively and issue all certification and 25 year warranty.

A purpose-built insulation removal system is used to collect all the insulation that occupies the cavity.

It is an industrial vacuum cleaner which uses air pressure to suck up the insulation into a bag. Henry is not used. 🙂

The powerful motor will ensure that all existing insulation material is removed from every crevice.


How Long Will It Take?

The process to extract and refill usually takes 2 – 3 days to complete.

You do not need to vacate your property but there can be a lot of noise via the machines.


How Much Does Cavity Wall Insulation Removal Cost

You should expect to pay around £20 -£25 a square meter for removal.

Typical house costs £1500 – £2000

To refill would would cost up to £1200

The Cavity Wall Extraction Process

A complete technical survey is carried out and fully risk assessed prior to any work being carried out.
All works are carried out by Oscar approved cavity wall extractors
All works are non-disruptive to neighbouring properties insulation.


Grant Funding

Grant funding is available for re-blowing cavity wall insulation for electric heated homes only . Gas heated homes will be included from Eco 4 in July 2022

The amount of grant and the cost of the works is usually covered by a 100% grant from The Government subject to it meeting the requirements below:

  • The cavity was not appropriately cleared prior to the insulation installation
  • Your property’s location is within a high wind and rain exposure area causing penetrating damp
  • Your property suffers from damage to external walls such as cracks within the render, pointing or brickwork.
  • Your property’s structure is not appropriate for cavity insulation
  • It has not been installed correctly
  • The cavity is suffering from blockages as a result of building works
  • The insulation is aging and suffering from slumping.

How To Apply For An Eco 4 Grant

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Top 5 Cavity Wall Insulation Problems


If your cavity wall insulation is wet or defective, this can eventually lead to some nasty bills. You will have mould problems and redecorating costs.



Wall ties play an essential role in holding the structure of a property together.

When cavity wall insulation becomes wet, it will eventually sag and clump around a wall tie.

Seeing as most older wall ties are galvanized steel, they’re prone to rust and corrosion.

To avoid any structural damage to your property, these ties must be replaced which typically costs £1000 to £1500.



It is likely that your rendered wall would have cracked as the wall ties begin to swell, so not only will you have to pay out on wall tie replacement but potentially the cost to re-render your property. This could cost you an excess of £2500.



Another subtle cost that you could incur if your cavity wall insulation is failing is a rise in your heating bills.

Most fail to notice this, but as your insulation deteriorates, it becomes easier for heat to escape your property.

This results in you having to use more gas and electricity to heat your home.



Finally, if water does manage to ingress from the exterior to interior wall it will eventually work its way into the gypsum skim on your wall.

As moisture works its way into the plaster, the plaster will lose its adheration to the wall and blow.

Whilst the cost to repair this might be relatively low, £100-£300, unfortunately it is a recurring cost. Until the source of the problem is resolved, this cycle will continue.


Useful Resources & Other Grants Available For OAPs

Pensioners Age Uk 1





More Useful Resources & Other Grants

Grants For Uk



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