what is mep contracting
MEP Contracting. Causeway Vixen software solutions for mechanical, electrical and plumbing (MEP) contractors provide a company-wide solution that links estimating, purchase ordering, job costing and accounts software to deliver measurable cost savings.auseway Vixen software solutions for mechanical, electrical and plumbing (MEP) contractors provide a company-wide solution that links estimating, purchase ordering, job costing and accounts software to deliver measurable cost savings.