Third-generation builder Nielsen Construction in Point Loma has held dual CSLB Class A and Class B licenses since its founding in 1945, delivering general contracting and construction management from its Rosecrans Street office. Education, healthcare, and hospitality projects comprise the core portfolio, with average contract values exceeding $10 million and roofing scopes subbed to specialists like ADS Roofing San Diego on institutional new-builds. DIR-registered under File #1000001131 and ranked in the top four percent of California’s public-works contractors, the firm manages prevailing-wage projects for city agencies, county hospital systems, and university campuses. Superintendent-led crews average more than 30 years of field experience each, coordinating electrical rough-ins with trade partners like New Leaf Electric Inc. to stage conduit and panel work ahead of drywall close on fast-track schedules. The most complex deliveries are phased hospital renovations requiring full infection-control barriers, negative-pressure containment, and uninterrupted utility service to adjacent occupied patient-care wings.