We are a union signatory excavation contractor based in Castro Valley specializing in structural foundation & underground excavation. We proudly serve a wide area across Northern California—from Chico to Salinas

At M Bar M Excavation, digging deep isn't just what we do—it’s who we are.  We deliver reliable and accurate excavation for a wide range of projects. 

Our excavation services include:
- Structural excavation for Footings, Piers, and Grade Beams
- Trenching for Underground
- Compaction
- Dirt Offhaul & Disposal

M Bar M Excavation

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