Sound testing in Cornwall. Approved Doc E sound testers in Cornwall, providing ADE sound testing services in Cornwall by accredited Members of the Association of Noise Consultants (ANC), fully insured ADE sound insulation testing company for Building Control compliance. Local sound test company serving Truro, Redruth, Falmouth, St Austell, Newquay, Penzance, Saltash, Bodmin, Helston, Liskeard, Launceston, Bude, Wadebridge and the South West