Cavity Wall Insulation –FREE Home Improvement Grants 2022 (2022)

Do You Qualify For Free Cavity Wall Insulation Grants?

Cavity Wall Insulation –FREE Home Improvement Grants 2022 (1)

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 .

APPLY HERE FOR A GRANT

How To Get Free Cavity Wall Insulation Grant?

Cavity Wall Insulation –FREE Home Improvement Grants 2022 (2)

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 Homeowners or Private Tenant
  • Have An Electrically Heated Property
  • Have An Off Gas Heated Home

Don’t wait till it’s too late, and apply now for your Free cavity wall insulation grant.

APPLY HERE FOR A GRANT

  • PENSION CREDIT /HELP FOR PENSIONERS – Many Pensioners Still Not Claiming This

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.

(Video) How To Get Free Home Improvement Grants 2022

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

APPLY HERE FOR A GRANT

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.

APPLY HERE FOR A GRANT

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.

(Video) Cavity Wall Insulation

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

(Video) What is Cavity Wall Insulation? Free Insulation Scheme #eco4

APPLY HERE FOR A GRANT

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.

APPLY HERE FOR A GRANT

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.

(Video) How To Get Free Grants 2022

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.

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.

APPLY HERE FOR A GRANT

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.

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(Video) Cavity Wall Insulation Removal

FAQs

Can I get free cavity wall insulation UK? ›

FREE Cavity Wall Insulation is available if someone in your home receives one of the following benefits: Child Tax Credit. Housing Benefit (not the single person's 25% Council Tax reduction) Income-Based Jobseekers Allowance.

Can I claim for cavity wall insulation? ›

Can I Claim Compensation for Cavity Wall Insulation? Yes, if your installation company is still trading, they're responsible for any problems with your cavity wall and they must put them right. And the long-term damage of the cavity wall should also be considered.

Do British Gas do cavity wall insulation? ›

British Gas is extending its offer of free loft and cavity wall insulation to all British households regardless of who supplies their energy. The new offer means that anyone owning a home with unfilled cavity walls or a loft with little or no insulation(1) can apply to British Gas to install the measures for free.

What problems can cavity wall insulation cause? ›

Damp cavity wall insulation will lose much of its insulating properties, and can penetrate your internal walls, causing dampness, stains, peeling wallpaper, and even mould. This can even lead to black mould, which can cause serious health problems.

Should I have my cavity wall insulation removed? ›

If cavity wall insulation becomes wet or damp, it really must be removed as this will transfer moisture to the inner skin of the property, damage wall finishes and potentially cause health hazards.

Can pensioners get free cavity wall insulation? ›

Free Cavity Wall Insulation For Pensioners is funded by the Government's ECO Scheme. There are two parts to the ECO Scheme which provide Free Cavity Wall Insulation For Pensioners.

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