BC Engineering Group Expands into Expert Witness Services for Construction and Land Use Litigation

Santa Rosa civil engineering firm adds litigation support and expert testimony services to its practice, serving construction defect and land use disputes

SANTA ROSA, CA, UNITED STATES, August 24, 2026 /EINPresswire.com/ — BC Engineering Group, a civil engineering and land planning firm serving Northern California, has launched a dedicated Civil Engineering Expert Witness service. The new offering brings the firm’s technical and regulatory expertise into construction defect litigation, boundary and easement disputes, septic system failure claims, and other cases requiring a qualified engineering expert.

BC Engineering Group was founded in Santa Rosa in 2016 and has grown to more than 20 full-time employees, serving residential, commercial, agricultural, and governmental clients across Sonoma, Napa, and Marin Counties. The firm’s core practice areas include civil engineering, wastewater systems, land planning, and landscape design, giving it broad technical grounding across the disciplines most often at issue in construction and property disputes.

The Expert Witness service is led by Thomas Billeter, P.E., Q.S.D., Q.I.S.D., founder and Principal Engineer of BC Engineering Group. Billeter brings decades of civil engineering experience to case review, site investigation, technical report preparation, deposition testimony, and courtroom testimony on matters involving grading and drainage, stormwater management, wastewater and septic system design, and land use compliance.

Attorneys and litigation teams working construction defect, real estate, and land use cases can now engage BC Engineering Group for independent technical analysis grounded in California regulatory standards and local agency practice. The firm’s familiarity with Sonoma, Napa, and Marin County permitting agencies, developed through its ongoing civil engineering and land planning work, supports case analysis that reflects how local jurisdictions actually apply code and permitting requirements.

“Attorneys need an expert who can explain complex engineering issues clearly and stand behind that analysis under cross-examination,” said Thomas Billeter, P.E., Q.S.D., Q.I.S.D., Principal Engineer at BC Engineering Group. “That is the standard we hold ourselves to on every case.”

The launch extends BC Engineering Group’s integrated, in-house model, in which civil engineering, wastewater, land planning, and landscape design services operate under one roof, into the litigation support space. The firm’s positioning around transparency and technical accuracy, reflected in its “Honesty Comes First” operating philosophy, carries into expert witness work, where credibility and clear communication with legal teams and juries are central to the role.

The Civil Engineering Expert Witness service is available now for active and prospective litigation matters across California. Additional information, including Billeter’s background and areas of expert testimony, is available at bcengineeringgroup.com/Civil-Engineering-Expert-Witness.

BC Engineering Group continues to serve California through its four core service lines while expanding its expert witness practice to meet growing demand from the legal community for qualified, locally informed civil engineering experts.

Thomas Billeter
BC Engineering Group
+1 707-542-4321
info@bcengineeringgroup.com
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