What is cavity wall Insualtion?
Cavity wall insulation fills gaps often found between external walls in homes built after 1920, keeping the warmth in to save energy. It can also help reduce condensation inside the house if this is a problem stemming from your externalwalls. It is blown into the cavity from the outside of a house.

Benefits of Underfloor Insulation
  • A home can lose as much as 35% of its heat through uninsulated external walls.
  • If you qualify, it could be free.
  • It will  help to reduce your carbon footprint.
  • By saving energy in the home, you are not only helping yourself, you are also helping the planet.
  • Makes your home more cosier.

First determine if you can have cavity wall Insulation, why not compare your walls against this picture. Having solid walls means you will not qualify for Cavity Wall Insulation.

There are two things you need to determine to see whether you can benefit from retrofitting cavity wall insulation in your home.
The first thing is to work out if you actually have cavity walls – this might seem stupid, but you can not inject insulation if there isn’t a cavity and they do look quite similar to solid walls!
A cavity wall is made up of two masonry brick walls running parallel to one another with a space (cavity) between them of at least 50mm. Masonry bricks are very absorbent, so moisture absorbed by the outer wall typically drains through the cavity, rather than coming into the home, helping to prevent damp issues. This type of wall construction became the norm in the 1930s superseding solid walls and as time has gone on, the size of the cavity between the two skins of brick has continued to grow – a typical cavity wall now is between 280-300mm thick

Free cavity wall insulation is now available throughout England. If you receive one of the following benefits, you could be eligible for a grant as part of the Government’s ECO scheme
  • Pension Credit Guarantee
  • Income based Job Seekers Allowance
  • Income Support
  • Income related Employment and Support Allowance
  • Working or Child Tax Credit
  • Universal Credit

If the answer is Yes, then call us now on 01924 726615 or 01924 239707 and arrange your free survey.

Not in receipt of any benefit?
You can still qualify for a grant, under our CERO scheme, but a contribution by the owner of the property will be required. Please speak to a member of our friendly team to find out more about this scheme.


Here at Direct Energy Efficiency Solution LTD, we are dedicated to providing our customers with the best possible service. We do regret to inform our customers, that we do not fit your Cavity Wall Insulation. This should not put you off though, as one of our freindly surveyors will still visit your home and carry out a free survey for you, inform you of what you require and pass you onto to a direct installer. You will still benefit form a top service and will receive the same benefits as our other services.
What materials can you use for cavity wall insulation?
There are two major types of cavity wall insulation: expanded polystyrene and wool. Properties typically used to be insulated with urea formaldehyde foam, but this is no longer used.

Expanded polystyrene (EPS) insulation

Commonly known as EPS, expandable polystyrene is a rigid, lightweight, foamed plastic product with excellent thermal insulation and impact resistant properties. EPS is produced when pentane, dissolved in small polystyrene beads, is made to expand under the influence of heat and steam. These foamed beads can be moulded into a wide range of shapes and sizes suitable for a wealth of applications.


  • Excellent Thermal Insulation: EPS is 98% air and is therefore an excellent thermal insulation material.
  • Proven Acoustic Insulation: EPS absorbs sound, both impact sound in floating floors and airborne sound for walls.
  • Resistant to Moisture: EPS resists degradation by absorption of water.
  • Resistance to Humidity: EPS has excellent mechanical and thermal properties which are unaffected by humidity because EPS does not absorb water or water vapour.
  • Lifetime Durability: EPS does not decompose and as a result provides lifetime application.
  • Cost Effective: EPS offers the best price/performance ratio compared to any other insulation material.
  • Easy to Install: EPS is light, practical, safe and comfortable to handle and install.
  • Flame Retardant: There are two grades: FR grade, a version that is self-extinguishing that includes a flame retardant and non-FR without a flame retardant.
  • Easy to Transport: EPS is almost as light as air, so it saves fuel in transport.

Make your loft into a room, and add some much needed space.

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