Site Utilities Intern – Project Management & Estimation

CornerStone One, one of the fastest-growing commercial construction companies in Southeastern Wisconsin, provides commercial plumbing, HVAC, site utilities, earthwork, and 24/7 service—partnering with leading General Contractors and building owners throughout the region.

Our vision for CornerStone One is a place where we champion our team members, believe in every individual’s potential, and challenge each other to do great things.

We are seeking a summer intern to support our Site Utilities team, with a focus on project management and estimation. This individual will gain valuable, real-world experience in planning, estimating, and supporting utility infrastructure projects from preconstruction through execution.

 

Duties and responsibilities include:

  • Assist in preparing quantity takeoffs and material/labor cost estimates
  • Support project managers in the coordination of job site activities and logistics
  • Visit job sites to assist with tracking progress and understanding field operations
  • Help compile bid packages and request subcontractor/vendor pricing
  • Interpret utility plans, drawings, and specifications
  • Assist in procurement tracking and scheduling support
  • Participate in internal team meetings and contribute to project updates
  • Maintain documentation and assist in ensuring safety and compliance standards

 

The ideal candidate will have the following skills and abilities:

  • Strong verbal and written communication skills
  • Excellent organization and attention to detail
  • Ability to manage time effectively and prioritize multiple tasks
  • Strong analytical and problem-solving abilities
  • Willingness to learn in a fast-paced environment
  • Interest in infrastructure, construction, and project planning

 

Education and experience:

  • High school diploma or equivalent
  • Two years or more of college preferred
  • Currently pursuing a degree in Construction Management, Civil Engineering, or related field
  • Familiarity with construction drawings and specifications
  • Proficiency in Microsoft Excel required
  • Experience with Bluebeam or construction software is a plus

 

Additional Requirements:

  • Working hours are 8:00 AM – 4:00 PM, Monday through Friday
  • Reliable transportation to and from the office and job sites is required