HVMS Ltd supplies control persons, senior authorised persons, authorised persons and technicians to support private high voltage networks in the renewables industry. If you contact HVMS Ltd before 5pm, we aim to have an SAP with you the following day. We carryout routine and non-routine maintenance of HV BoP, conduct switching operations to provide safety from the system and by using our support network of sub-contractors can locate and repair faults on client networks.