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Mechanical Project Manager - HVAC & Piping in St Louis

Date Posted: 16 October 2026

Job Snapshot

Job Description

Have a few years of mechanical project experience and want more say in how jobs get delivered? A mechanical contractor is looking for a Mechanical Project Manager in St. Louis who will own project results on HVAC, plumbing and piping work.

You'll be accountable for each project's outcome: the money, the schedule, the safety record and the finished install. You'll partner closely with field leaders and keep clients confident.

Your day-to-day

  • Lead site safety: inspections, high-risk activity planning and site-specific safety requirements
  • Keep contract documents, submittals, RFIs and closeout packages (O&M manuals, warranties, record drawings) organized
  • Build and drive project schedules alongside engineering and P6 schedulers, including weekly work plans
  • Approve invoices, oversee payables and receivables, prepare billing schedules and settle cost changes
  • Visit sites regularly to confirm mechanical, plumbing and specialty installs match the approved documents
  • Run project financials with job cost and cash flow reports, flagging risks early and keeping forecasts accurate
  • Strengthen client relationships and pass new opportunities to senior leadership
  • Plan manpower, track labor productivity and coordinate with purchasing, the shop, the warehouse and vendors
  • Direct subcontractors: set scopes, manage contracts and changes, and confirm DBE/MBE and contract compliance

Your background

  • P6 or Microsoft Project experience, or willingness to build it
  • 2-5 years managing projects for a mechanical contractor
  • Comfortable with Viewpoint, Procore, ACC Build, Bluebeam and Microsoft Office
  • A self-starter who communicates clearly and handles competing deadlines calmly
  • Degree in construction management or mechanical engineering, or equivalent proven construction management experience
  • HVAC and piping knowledge preferred
  • Solid understanding of mechanical systems, so you can read and apply project documents with confidence

What's in it for you

  • A role where performance is rewarded
  • Full medical, dental and vision coverage
  • Retirement plan with employer contributions
  • Paid vacation, sick days and holidays
  • Tuition reimbursement for continued learning
  • Discretionary annual bonus

Pay based on experience. All conversations are confidential, so apply today to learn more.

All qualified applicants will receive consideration without regard to race, age, color, sex (including pregnancy), religion, national origin, disability, sexual orientation, gender identity, marital status, military status, genetic information, or any other status protected by applicable laws or regulations. GPAC (Growing People and Companies) is an award-winning search firm specializing in placing quality professionals within multiple industries across the United States since 1990. We are extremely competitive, client-focused and realize that our value is in our ability to deliver the right solutions at the right time.

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