TrustMark is a not for profit organisation, licensed by Government and supported by consumer protection groups. It acts as a signpost to help householders find quality local firms and expert tradespeople working to Government-endorsed standards, providing consumers with choice, confidence and protection.

The BBA is a Scheme Operator for a selection of trades and also provides inspection services to other Scheme Operators. The trades that may be assessed by the BBA include installers of cavity wall insulation, loft insulation and internal/external wall insulation.

An installer looking to secure more business by becoming TrustMark registered, needs to register through a Scheme Operator, such as the BBA.

How are TrustMark-registered firms vetted?

TrustMark-registered firms are expected to be of the highest standard and to operate to Government-endorsed standards.  Every firm’s technical skills are independently checked through on-site inspections, as well as background checks on its trading records and financial status. Qualified BBA inspectors undertake these visits, meaning that technical competence, as well as proper business practices and customer satisfaction are properly monitored.

TrustMark is a scheme that checks all three cornerstones of quality: trading practices, customer care and technical competence. Firms that fail to meet TrustMark standards can be taken through a complaints and disciplinary process, and Scheme Operators offer an effective dispute resolution service to firms and their customers.

For full details of the Trustmark Scheme please visit their website  For enquiries about becoming a TrustMark approved installer please contact the BBA for more details either by telephone on 01923 665300 or using our Contact Us page.




If you have any questions about TrustMark or any other BBA installer approval and inspection services, please get in touch with a member of the BBA team by submitting your details on the Contact Us page.


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