Building Your Vision

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 Vanguard Engineering LLC brings a wealth of experience spanning over 15 years in the electrical and energy sectors. Our founder, Ricardo J. Castillo, has led projects across residential, commercial, and federal landscapes—including critical energy initiatives for the Department of Energy (DOE), Department of Defense (DOD), and tribal communities. From single-family homes to multi-unit apartment complexes, and from battery energy storage systems to microgrid integration, our team has successfully delivered innovative, code-compliant solutions across diverse project scopes. This depth of experience allows us to anticipate challenges, adapt quickly, and deliver high-quality results that exceed expectations. 

 At Vanguard Engineering LLC, we take a hands-on, collaborative approach to every project—large or small. We begin by listening carefully to our clients’ goals, timelines, and technical requirements, then apply our engineering expertise to design safe, efficient, and code-compliant solutions. From planning and permitting to installation and inspection, we maintain clear communication, strict quality control, and proactive problem-solving every step of the way. Whether coordinating with general contractors on a multi-family build or working directly with homeowners, our approach is grounded in professionalism, precision, and accountability. 

 At Vanguard Engineering LLC, our expertise lies at the intersection of precision electrical contracting and advanced engineering. With over 15 years of experience in the power systems industry—including federal-level projects with the Department of Energy (DOE) and Department of Defense (DOD)—we bring unmatched technical knowledge to every job. Our team is skilled in designing and executing residential and multi-unit electrical systems, smart energy infrastructure, and battery storage solutions with a strong emphasis on safety, efficiency, and compliance with the National Electrical Code (NEC). Whether it’s a single-family home, a new apartment development, or a microgrid integration, we deliver scalable, forward-thinking solutions backed by deep field experience and engineering discipline. 

 At Vanguard Engineering LLC, we are committed to delivering excellence in every wire we run and every system we design. Our promise is to uphold the highest standards of safety, integrity, and customer satisfaction—ensuring each project is completed on time, on budget, and built to last. We stand behind our work with licensed professionals, transparent communication, and a proactive mindset that prioritizes long-term reliability over short-term shortcuts. Whether serving homeowners or builders, our commitment is simple: Do it right the first time, and do it with purpose.