Cavity Wall Cleaning

Why MUST Your Cavity Walls Be Clear?

Cavity walls are designed to prevent water penetrating the internal walls of your home. The air space between the inner and outer walls allows any water that does get in to drain down to the footings.

However, for this to work the cavity must be completely clear. 
NB: The only exception to this is when an appropriate insulation material is expertly installed.

How a cavity may be blocked

The cavity may become blocked because:

  • It was not cleared correctly when the house was constructed
  • Debris got in during building work, such as replacing windows or fitting a conservatory
  • Debris got in during improvements and repairs, such as fitting a balanced flue boiler system or a vent

This debris can form a bridge that carries moisture across to the interior of the house, which in time will cause penetrating damp and mould.

Therefore, even if you’re not planning on having cavity wall insulation installed, it’s vital that the cavities of your home are clear.

So, why choose Evolve?

All our products and services are fully guaranteed. To ensure our technicians always meet our exacting high standards, we inspect 100% of the work they do.

We choose to do this because we believe we’re the name you can trust in our industry and work hard for all our clients to demonstrate why.

One of our Directors Gary Randle developed the system that we use to remove your cavity wall insulation, which is in common use across the industry. The BBA originally approved this process in 2009, reapproving it in 2015.
Here’s our 10 step system which was designed to get a quality job done with the least interruption to you and your home…

1 – We undertake a thorough survey of your home, including the condition of your external and internal walls and any existing areas of damp. We can then let you know how much it will cost to clear your cavities.

2 – We prepare the site and erect scaffolding if necessary.

3 – We create 5 – 10 openings at damp proof level in the external wall by removing bricks at predetermined distances.

4 – We fix specially designed extraction covers to the openings and attach an extractor.

5 – We drill a series of holes in the mortar line or render and use air pressure to force the insulation materials down to the extractor.

6 – We inspect the cavity at regular intervals throughout the extraction using a 360video boroscope that gives us a 2m view in every direction.

7 – When the extraction is complete and we’ve confirmed all the cavities are completely clear we reinstate the walls and return your home to its original state.

8 – We clear and clean the site so you don’t even notice we’ve been.

9 – We carry out a final inspection of your property.

10 – Our technician fills out and signs a completion certificate, which we ask you to sign as well.

The prices for cavity wall insulation removal/extraction/clearance will vary depending on the size of your house and the current material in the cavity wall. The team at evolve will be able to offer local advice to assist you with your enquiry.

Our Price Match Promise: Although we only install the best quality cavity wall and loft insulation, we match the price of cheaper, less effective materials.

1. Contact

Book a property survey appointment or call us and we will arrange for your local team to contact you.

2. Inspect

Our surveyors will discuss any problems with you & provide you with a quote and recommendations.

3. Service

Our qualified technicians will carry out the required service to your property to the highest standard.

4. Aftercare

We'll make as many visits and inspections as you require to ensure your problem is resolved.

Has Your Home Got Blocked Cavity Walls?

Get one of our expert technicians to check and give them a clean!