William “Billy” Mariscal


Construction Manager

David Horenstein

Responsible for overall Client management and project development, Billy is incredibly proficient and committed to quality and service. Managing over $30,000,000 of regional projects on a regular basis means he is always on the go. His local experience reaches back over thirty-five years and covers a wide range of construction types and projects. Billy is uniquely qualified to satisfy the requirements of the client with an in depth knowledge of the development process and conceptual design programs. He is comfortable and well accepted in many Architectural and Engineering firms throughout the region. His lead by example life style has brought him a lot of respect from all facets of construction. He can help you convert your vision into reality by carefully and thoroughly evaluating an opportunity. Many repeat clients depend on Billy and Primus for early estimates that either forecast success or avoidance of a specific project. He will put his heart and soul into every endeavor on your behalf.

Billy has excelled in retail, medical, industrial, multi and single family residence. He has managed numerous projects simultaneously in multiple locations, with a focus on maintaining schedules, budgets, and owner relations. He has experience producing and maintaining CPM schedules, the formulation of project budgets, strategic planning for negotiated projects, estimating for lump sum competitive and negotiated bids, as well as problem-solving with owners, consultants and subcontractors. Billy is known for his enthusiasm and energy in attacking each project. In addition, he is a specialist at site development and entitlement. Has managed numerous projects simultaneously with a focus on maintaining schedules, budgets, and owner / partner relationships.

Mr. Mariscal is the passion out front leading by example and showing how to transform a vision into a reality that provides financial incentives for those who work alongside him. Prior to forming Primus Contracting Group, Inc. in 2002, Billy was a project manager for a large national developer in Anaheim, California. He worked with developers in bringing projects from concept to completion. He performed conceptual estimating, scheduling, and contract negotiations.