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Loft & Cavity Wall Insulation Removal - Cavity Insulation Installers

The pros & cons of cavity wall insulation

Frequently Asked Questions

Here at Extract Insulation, we know that the decision to undertake work on your property is a complex one.  We regularly receive from a range of customers, including these frequently asked questions.

Frequently Asked Questions

Is cavity wall insulation suitable for all properties?

No. There are some conditions in which cavity wall insulation is not suitable for a property.  For this reason, we always carry out extensive assessments before recommending the right service for you.  Installing cavity wall insulation using the incorrect product for the property type can cause a range of issues, such as damp or structural damage. The property type may also affect the type of materials that can be used to fill the cavity.

Why have cavity wall insulation installed?

Within homes the walls and loft are the main source of heating loss.  Insulation provides an extra barrier, preventing the warm air from escaping as much.  As a result having cavity wall insulation and loft insulation can dramatically reduce household energy bills.  It will also improve a property's EPC (Energy Performance Certificate) rating, which can in turn increase the property value and ensure the home meets basic energy efficiency standards.

Why would you remove cavity wall insulation?

There are many reasons why the insulation in cavity walls may be removed.  In some cases, it may be installed incorrectly or a property may not have been suitable in the first place.  It is also possible for damage to cause problems with the insulation, such as damage occurring to the external brickwork.

Many problems with insulation stem from the material used becoming damp.  This not only means you do not receive the maximum benefit of the insulation but it can cause further issues too.  Properties that need their cavity wall insulation removing are likely to be experiencing damp and mould inside.

What are the signs of cavity wall insulation failure?

Penetrating damp and mould are the main indicators that a professional is required to carry out an assessment your existing cavity wall insulation.  You may also notice that your energy bills have increased and your home is experiencing more heat loss, although this will be gradual it remains overlooked by many property owners.

Is it possible to remove cavity wall insulation?

Yes.  We can remove cavity wall insulation if necessary, whether you would like it replacing or simply removing.  Following a thorough assessment of your home, we use a variety of techniques to remove the insulation depending on a variety of factors, such as your property type and the material used.  The methods we use are safe and do not cause  damage to the structural integrity of your property.

Is it possible to assess existing cavity wall insulation?

Yes.  We use leading technology and equipment to obtain a clear view of your existing cavity wall insulation when making an assessment, including using thermal imagery surveys, allowing us to make recommendations you can rely on.

Is an assessment necessary before installing cavity wall insulation?

Yes.  An assessment allows us to check the suitability of each property and select the right materials for each job.  In rare cases, cavity wall insulation may not suitable for a building and an assessment allows this to be flagged up and alternatives suggested.

How is cavity wall insulation installed?

Cavity wall insulation is pumped into the space between the two brick layers of external walls using compressed air.  Our experienced team use industry leading technology to ensure there are no gaps within the material, maximising the energy efficiency of the property.

What are beads?

We use EPS (Expanded Polystyrene) beads in our cavity wall insulation projects, as they reduce the risk of problems occurring.  This material delivers insulation benefits and does not absorb water, as a result the common issue of penetrating damp is removed.

If you have any further questions relating to cavity wall or loft insulation, our team is happy to help.

Do you want to know more about cavity wall insulation removal?

We also receive correspondence from troubled home owners who are enquiring about the cost of cavity wall extraction.  The cost varies from one project to another, depending on the size and need of the property.

A basic indication of the cost:

  • semi detached 3-bed property would be in the region of £1,300 - £2,000.
  • Detached 3–bed bungalow would be in the region of £1,000 - £1,500.

This may be different once our surveyor has completed the assessment.

Need some advice? Our experts are available to help

We’ve been working in the industry for over two decades and have honed our experience to other our customers tailored, complete solutions that are accredited and carried out by professional teams.

If your property is suffering from penetrating damp and mould - it's one of the main signs that you should contact a professional to assess your existing cavity wall insulation. We will give you a free no-obligation survey!

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We offer all our customers the best possible service so please call us with any questions you may have.