Independent Arbitration Service for Customers of the Cavity Installation Guarantee Agency (CIGA) and the Installation Assurance Authority (the IAA)

Managed independently by Centre for Effective Dispute Resolution.




Up to 90 days

Wall insulation
Mineral Wool Mineral Fiber Cotton Thermal Insulation Materials House Walls

What we can do

We provide independent arbitration for disputes relating to cavity wall insulation provided by installers who are registered with the Cavity Installation Guarantee Agency and the Installation Assurance Authority (the IAA).

The scheme is set up to arbitrate disputes that have not been resolved through the installers own complaints procedure.

  • If you want to know more about how we can help you with your CIGA & IAA complaint, please visit our Help & Guides.

The steps you must take before submitting a complaint

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Contact the company

Raise your complaint with the installer in the first instance. The name of the installer will be on the guarantee and contact details for all the installers currently in membership of CIGA can be found below under companies covered. The installer will contact you to arrange to investigate and promptly rectify any defects and should report to CIGA/IAA within 2 months
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Get in touch with CIGA/IAA

If the company is not able to resolve your dispute to your satisfaction within 8 weeks then you can contact CIGA/IAA setting out the problem and the steps you have taken to resolve the matter. Arbitration Application Forms can be requested from CIGA or the IAA directly.
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Refer to CEDR for arbitration

If you are not happy with the response you receive from CIGA/IAA, the Guarantee provides that any dispute between you and CIGA can be referred to arbitration by CEDR. The arbitrators decision will be final and legally binding on all parties.
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