Health & Safety Consultants in Gloucestershire | CDM Safety Plans & SSIP Accreditation Servi, We offer health and safety consultancy in Gloucestershire, as well as help assisting industrial and construction sites with CDM safety plans, SSIP accreditation (SMAS & CHAS), occupational health and hygiene risk assessments (noise, vibration and welding fume monitoring) as well as competent person schemes.