Cavity Clearance
Cavity Clearance Scheme

Cavity Clearance



Get certified by Stroma Certification’s Cavity Clearance scheme to extract damaged or compromised cavity insulation. With Certification provided by Stroma, your customers can be confident that that their cavity insulation will be removed to a competent standard.


Provide a vital health and safety service

Stroma Certification has created a new scheme to aid installers throughout cavity clearances. Ineffective cavity insulation can cause heat loss and damp which can result in excessive cold areas, mould and cause health and safety risks. Our Cavity Clearance scheme will certify you to remove that risk, ready for a safe insulation installation.

A trusted certification body

As an accredited, award-winning certification body, Stroma understands the skills, tools and knowledge required to provide a high-quality service and certify cavity clearance professionals to a competent level. Named Certification Body of the Year 2016, we are a prominent organisation in providing the most-competitively priced and benefit-rich installer certification schemes in the industry.

Committed to competence

Competency is of the utmost importance to Stroma Certification; we ensure each of our members maintains competent standards with regular, thorough auditing of your documents and installation and assessment capabilities. It is vital that customers choose trusted cavity wall insulation removal and extraction professionals who are able to work to a high standard.



An in-demand trade


With a large number of homes containing cavity insulation, the demand for cavity clearance is increasing. Cavity insulation often becomes ineffective and requires extraction for a number of reasons:

  • Flooding, wetness or damp
  • Debris, blockages and other build up which contribute to an incomplete fill of insulation
  • Low grade material causing heat loss, and therefore damp, and higher energy bills
  • Expiration of life of insulation which has been present for a prolonged period of time
Cavity Clearance Scheme

Demonstrate your competence with an OSCAR

All members of Stroma Certification’s Cavity Clearance scheme are required to demonstrate their competency in the proper extraction of damaged cavity wall insulation. The OSCAR (On Site Competency Assessment Report) is the required qualification to prove this competency and can be attained via our partners. Award of the OSCAR is dependent on successful completion of an on site assessment of the cavity extraction method. Further information about OSCAR can be gained by calling 01942 233669.



Additional benefits to support your trade

Stroma Certification members receive a number of benefits as part of their membership, including dedicated technical support, a members area for scheme and legislature updates, online notification software, Tracker, access to business insurance and much more.




Cavity Clearance Scheme

An endorsed scheme

We are working with third party legal firms, local authorities and specifiers to promote the importance of competency in the cavity extraction industry. Join Stroma Certification’s Cavity Clearance scheme and have your business recommended by legal firms dealing with the reparation of claims from affected homeowners. Legal firms, local authorities and specifiers are now recommending Stroma Certified cavity extraction professionals via our Cavity Clearance scheme.

Read our case study: CES North West Ltd


Streamlined notification software

Use our software software to submit your assessed cavity extraction video and all future cavity clearance notifications. We’re committed to low-costs and at £5 per notification, you’ll only pay for the software you use. We offer Tracker to ensure you can provide an efficient cavity clearance service to your customers.

Our software also provides you with free pre and post installation forms. This allows our members to fulfil the on site inspection and desktop audits which are required to maintain scheme membership.


A simple cavity clearance process


1. Complete the pre-assessment survey


2. Extract the insulation from the cavity and then capture and upload videos of the empty cavity using a borescope


3. Submit notifications through Tracker software at just £5 per notification


4. Complete quarterly desktop audits


Annual Cavity Clearance scheme membership £595 (+VAT)*

*Including 4 quarterly assessments.

You can join Stroma Certification’s Cavity Clearance scheme by filling out our simple registration form, or by calling our expert team on 0845 621 11 11 (ext.622).

apply now




4 Pioneer Way, Castleford, West Yorkshire, WF10 5QU

T | 0845 621 11 11*

©Stroma Certification Ltd 2017

*Calls cost 7p per minute plus your phone company's network access charge or call 01977 665420.