Built for better outcomes Design-Build

From Concept to Completion — Fully Connected

icon delivers design-build mechanical projects through an integrated approach that connects early planning, engineering, fabrication, construction, and service. By bringing the right technical teams to the table early, we help align scope, budget, schedule, constructability, and system performance before work reaches the field.

Design-build delivery gives owners and project teams a clearer path forward. With engineering partners, fabricators, and builders working together from the beginning, our teams can identify risks earlier, reduce conflicts, improve coordination, and provide greater cost certainty throughout the project. This collaborative approach helps keep budgets on track, schedules moving forward, and mechanical systems performing as intended in demanding environments.

Engineers Collaborating on Design

Our Integrated Team Approach

  • Mechanical Design-Build Delivery
  • Early Budgeting & Scope Development
  • Engineering & Constructability Review
  • Design-Assist & Design Coordination
  • BIM Modeling & System Coordination
  • Fabrication & Modular Planning
  • Field Installation & Project Execution
  • Commissioning & Turnover Support
  • Service Planning & Long-Term System Support

Beginning with the End in Mind


Our approach to design-build is built around early collaboration, engineering-driven planning, and field-informed decision-making. By connecting design intent with real-world execution, we help reduce rework, protect schedules, and improve overall project performance.

  • Early involvement with owners, engineers, and construction teams
  • Collaborative scope, budget, and schedule alignment
  • Coordinated BIM modeling and layout
  • Constructability reviews before installation begins
  • Prefabrication and modular strategies where they add value
  • Sequenced installation aligned with project phasing
  • Field leadership involved throughout planning and execution
  • Real-time problem solving as project conditions evolve

“The icon Design-Build approach to that project, based upon the BR+A design development package, resulted in a quality chiller plant, boiler plant, and bed tower air handling unit installation, with a project savings of $2 million and an on-time completion.”

Britt Ellis, PE, LEED AP, Associate Principal, BR+A Consulting Engineers

Coordination That Improves Performance


Successful design-build projects depend on details being resolved early. System routing, equipment access, material sequencing, trade coordination, and installation phasing all affect how well a project moves from plan to performance.

Our teams focus on these details from the start — helping mechanical systems meet project requirements while supporting efficiency, reliability, safety, and long-term maintainability.

Accountability From Day One

As an employee-owned company, our teams take ownership of outcomes at every stage of a design-build project. That mindset drives proactive planning, clear communication, disciplined coordination, and a commitment to delivering mechanical systems that perform long after installation is complete.

Design-Build Delivery in Action

See All Projects

American Food Groups - Beef Processing Facility

American Food Groups - Beef Processing Facility

icon Mechanical delivered design-assist HVAC and plumbing for American Foods Group's 800,000 SF beef processing facility.

Confidential Data Center (40 MW)

Confidential Data Center (40 MW)

icon Mechanical delivered the design-assist mechanical scope for a confidential 40 MW data center, including 63 air-cooled chillers providing 18,000 tons of cooling capacity.

Confidential Data Center (50 MW)

Confidential Data Center (50 MW)

icon Mechanical is delivering design-assist mechanical and plumbing systems for a confidential 50 MW enterprise hyperscale data center retrofit, including 20,000 LF of piping across all systems.

Couch Biomedical Research Building

Couch Biomedical Research Building

icon Mechanical installed mechanical systems for Washington University School of Medicine's LEED Silver certified, six-story, 181,000 SF Couch Biomedical Research Building, achieving significant cost savings through value engineering.

Goodwill Building Adaptive Reuse

Goodwill Building Adaptive Reuse

icon Mechanical is delivering design-assist mechanical and plumbing systems for the adaptive reuse of the former Goodwill headquarters into high-tech lab and office space for Washington University in St. Louis.

Confidential Pharmaceutical Campus

Confidential Pharmaceutical Campus

icon Mechanical is delivering design-assist mechanical and plumbing systems for a 156,000+ SF high-hazard pharmaceutical lab and administration facility for a confidential major manufacturer.

NGA West

NGA West

icon Mechanical served as the design-assist mechanical contractor for NGA West, a new 97-acre intelligence operations and data center campus in St. Louis, Missouri.

Boeing St. Louis Expansion

Boeing St. Louis Expansion

icon Mechanical is delivering design-assist mechanical and plumbing for Boeing's landmark 3A Brownleigh expansion near St. Louis Lambert Airport.

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