About Company

Big Bore Drilling Certified Septic & Hydro-Flushing is a family-owned septic, drilling, and hydro-excavation contractor based in Fresno, California, operating since 1959 and licensed as Contractor #579423 (C42, A) with D.I.R. (P.W.C.) #1000012680. Big Bore Drilling provides comprehensive services including septic system installation, repair and pumping, engineered septic systems, leach lines, drain wells, lift stations, septic inspections and certifications, large-diameter borehole drilling and test holes, hydro-flushing, hydro-excavation, vacuum debris removal, city sewer hook-ups and stormwater/area drains for residential, commercial and agricultural clients across Fresno, Madera and surrounding Central Valley counties.

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