Our website contains guidance on buying legionella control services, an up to date list of all registered companies and the categories of services they provide. Remember that it is your responsibility to ensure the competence of your service provider - we are not a regulatory body or trade association so cannot certify the performance of service providers and their staff. However you can expect LCA member organisations to deliver a high standard of service in controlling the risk of legionella and maintaining the safety of your water systems.