Since 1974 Interstate Mechanical Corporation has grown from a small sheet metal-only shop into the premier commercial plumbing and HVAC contractor in the Southwest.

Medical gas

Our formula for quality construction at competitive prices

Customer Service


Employee Training


Attention to Detail


A track record you can trust.

Comprehensive Preconstruction Services

Eliminate surprises, maintain budgets, shorten schedules, and provide a truly positive experience.

  • Budgeting
  • Constructability Review
  • Life-Cycle Costing
  • Space Planning
  • Preliminary Scheduling
  • Permit Expediting
  • Procurement
  • Long Lead
  • Assess Material Availability and Compatibility
  • Subcontractor Bidding and Prequalification
  • Site Analysis and Input
  • Value Engineering
  • Risk Assessment
  • Sustainability Consulting and Certification


Fully Managed Construction Services

Successful outcomes delivered with a smooth, enjoyable process that respects project owners’ investments.

  • On Site Supervision
  • Project Management
  • Subcontractor Coordination
  • Cost Control Management
  • Real-Time Project Communication
  • Accounting
  • Scheduling and Phasing
  • Safety Programming
  • Drawings Review and Submittal
  • Total Project Coordination
  • Custom QA / QC Program

Successful Projects

There’s a reason we’re Arizona’s leading mechanical contractor.

Skysong Scottsdale

Award-Winning Superintendent Team

You’ll always know your project is in good hands with our experienced, detail-oriented team of construction professionals.

Committed to Safety

Our commitment to safely maintaining project scheduling keeps us in good favor with general contractors, who will affirm that IMCOR can keep pace with even the most aggressive project schedule.

Convenient Central Location

Our offices and shop facilities are located in central Phoenix, in close proximity to downtown, major freeways and Sky Harbor International Airport.

Get in Touch

Have a question about our services or construction capabilities? We’re always ready to help.