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Excellence in underground engineering since 1970. Specialties: storm drains, water, sewer, fire protection, natural gas, excavations and more.

Explore Company

Premium underground electrical systems that keep communities running. Specialties: public utilities, telecom, joint trenching, security and more.

Explore Company

Excellence in underground engineering since 1970. Specialties: storm drains, water, sewer, fire protection, natural gas, excavations and more.

Explore Company

Quality. Integrity. Service.

The Preston Companies bring extensive expertise and hands-on partnership to complex projects. Our services include excavating and installing underground wet and dry utilities, soils testing and management, and fill site management.

About Preston

Harker Middle School

San Jose, CA
  • Client/Owner

    The Harker School

  • Completion Date

    August 2021

  • Duration

    17 Months

  • General Contractor

    Devcon Construction, Inc.

The project featured the removal of five existing buildings with the replacement of a new 40,000 SF, 2-story academic building; the project also included a remodel of the existing 9,000 SF gymnasium. The scope of work consisted of a new football field with landscaping and a new signalized intersection. In addition, two existing buildings were remodeled with an activity area, dance room, and art and music studios, while the newly remodeled gym features locker rooms.

Preston Pipelines installed new underground wet utilities to service the new academic buildings on campus.

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