How Is Cavity Wall Insulation Removed?

Before we get into the way in which Cavity Wall Insulation is removed, you may be wondering what Cavity Wall Insulation is and why you would need to get it removed in the first place. If so, take a moment to read another one of our blog posts, that defines and explains Cavity Wall Insulation and its problems.

Cavity Wall Insulation Removal

Cavity Wall Extraction can be defined as the removal of the insulation within the cavity space, found within your walls. Cavity Wall Insulation is removed when the insulation within the walls is no longer effective or otherwise, causing damage to the property creating a bridge across the outer and inner brick leafs of a cavity, ultimately transfering moisture and damp to the inner skin, these cases are on the rise. In a nutshell ‘Cavities Are Built For A Reason’ removing defective insulation can allow the cavity to breath as well as preventing wall ties corroding and significantly reduce potential damp and damage to the internal or external walls of your property.

Why Does Cavity Wall Insulation Need To Be Removed?

There are various reasons why cavity wall insulation removal becomes necessary, although it fundamentally comes down to the insulation in place becoming inefficient. This can be caused by:

• Poor fitting, faulty brickwork, flooding, or wet pipes that cause the cavity wall insulation get wet. Once water gets into the material, it creates damp which allows water to pass from the external wall into the home. Read more about damp here.
• Ineffective insulation materials were originally used and cannot successfully do the job. Materials that were once used in the past and present are problematic, some deteriorate and break down into dust-like particles; these sit at the bottom of the cavity and in turn, have no insulation benefit or effects anyway.
• Incorrect Installation may also be the cause of your home needing cavity wall insulation extraction. For example, if the drill holes through which the insulation is placed are spaced incorrectly, it could lead to hot and cold spots which can cause the insulation to become defected and ineffective.

Signs Your Cavity Wall Insulation Is Failing

It can be somewhat difficult to tell if your Cavity Wall Insulation has become ineffective, and needs extracted or replaced. Some signs are obvious, such as damp in your home, although other signs can be difficult to spot and don’t become obvious straight away, but instead over time. If you are concerned about your Cavity Wall Insulation, then these may be some red flags to look for:

• Your home has damp issues or black mould appearing.
• Unable to decorate or plaster.
• Dampness on your walls (this can be anywhere on the wall).
• Cold walls that feel almost damp or otherwise cold to the touch.
• Peeling wallpaper, rotten skirting boards.
• Black mould around windows and doors.
• Musty smells within the property can also be a sign.

How Is Cavity Wall Insulation Extracted?

The process of removing Cavity Wall Insulation involves specialised machinery that is specifically designed for this purpose and can only be used by qualified and approved technicians. So, let’s break the Cavity Wall Insulation Extraction process down into steps…

Step 1
A technical survey is carried out to identify the cause and issues, forming the basis of the work that will be carried out.

Step 2
A specialised insulation removal system is used to extract and collect the insulation within the cavity. Like a vacuum, it uses air pressure to suck out the insulation into a bag. This is a clean, seamless, and efficient solution that prevents unnecessary damage to your home.

Step 3
After the Cavity Wall Insulation is thoroughly cleaned out, your technicians will carry out any other necessary services that may be required to prevent damage to your home, or the same issue happening again, an example of this would be damp proofing. This service would have been identified in your initial technical survey.

The Cavity Wall Extraction process is a relatively seamless process when carried out by the right professionals. It typically takes 1-2 days to complete, depending on the size of the property.

How can we help?

Here at CavClear, we specialise in providing the Northwest a prompt cost-effective and friendly solution to removing Cavity Wall Insulation. Our team are fully approved and accredited to provide you with an easy, effective and high standard of service.
If you are concerned that your Cavity Wall Insulation has become ineffective, or is causing damp to your home, then get in touch now for a expert, no-obligation Cavity Wall Insulation Removal quote!

Don’t let the issue get out of hand… Get in touch with our friendly team by calling 0333 220 2463 or contact us.