Team Working on Trenching Project


About CMBSI

Across Southern California, CMBSI is trusted by countless commercial and residential customers in a wide range of communities. It all begins with our owner—Ernie Medrano—who has more than 25 years of industry experience, meaning he knows everything there is to know about backhoes, trenches, and excavation. He started his career working for another respected backhoe company but soon realized that he wanted to do more for his customers. And so, Ernie purchased his own truck and equipment—and CMBSI was born.

CMBSI has now been impressing customers for more than 18 years. Over the course of nearly two decades, we've developed a reputation for reliable service, unparalleled workmanship, and competitive rates. Offering the finest customer service has always been our top priority, and it will continue to be so for years to come. Call today to experience our first-rate service for yourself.