Maxim Construction Company, Inc., doing business as Maxim Engineering in Alpine, holds CSLB licenses #1000689 and #786365 (A-General Engineering, B-General Building) for utility-system construction including sewer, watermain, and underground infrastructure projects across Southern California. Subsurface utility trenching for water and sewer mains runs through the same excavation corridors where Alpine Plumbing & Backhoe Inc on Alpine Blvd performs service-lateral connections and backflow-preventer installations. AGC San Diego chapter membership positions the firm within the regional bid network for publicly funded infrastructure, transportation, and municipal utility projects throughout San Diego County. The dual A/B license classification allows the company to self-perform both the horizontal underground civil work and the vertical structural components that many utility projects require — eliminating the subcontractor handoff between engineering and building trades. Site-clearing and grading phases on undeveloped utility corridors in Alpine's rural terrain draw on vegetation-removal specialists such as Bob Wining Tree Service on Carveacre Road for protected-species oak and riparian canopy compliance. The highest-specification engagements involve complete municipal water and sewer main extensions requiring engineered trench shoring, compaction testing to 95-percent modified Proctor density, and hydrostatic pressure testing to AWWA C600 standards before agency acceptance.