We are currently in the process of redesigning our website in order to better serve both current and future clients.


For all inquiries please contact:

Ernesto Lopez Del Castillo, P.E.Christina R. Taylor
Principal, Electrical EngineerBusiness Development and Marketing


H2MG, LLC was founded in 2009 by Principals with over 100 years of combined mechanical, electrical, and plumbing engineering design experience. They bring with them expansive portfolios from almost every market sector, both public and private, and have given H2MG the distinction of being a leader in higher education, K-12, municipal, state government, and research laboratory MEP design.



At H2MG, we believe building environments are influenced as much by the Mechanical and Electrical systems serving them as the Architectural design defining them.

H2MG, LLC. 70 NE Loop 410, Suite 1075
San Antonio, TX 78216
(210) 525.0220
State of Texas HUB Certified
South Central Texas Regional Certification Agency/ HABE MBE SBE