3rdGen Building Systems

Commercial HVAC Design-Build

Commercial HVAC Built Around the Project, Not Just the Equipment

3rdGen Building Systems supports Bay Area commercial HVAC scopes from early review through installation — helping GCs, owners, architects, and engineers move from mechanical intent to coordinated field execution.

Built for Commercial Scopes That Need Coordination

Commercial mechanical work is shaped by existing conditions, ceiling space, routing, access, ventilation, equipment placement, trade coordination, and schedule pressure.

3rdGen is best suited for commercial HVAC scopes where those decisions need to be clarified before they become field problems.

Best-fit scopes

  • Commercial interiors
  • Tenant improvements
  • Existing-building upgrades
  • Institutional facilities
  • Community and religious facilities
  • Commercial new construction
  • Mixed-use and multifamily projects
  • Projects with GC, architect, engineer, or owner involvement

What 3rdGen Supports

3rdGen helps project teams move from mechanical intent to buildable field execution.

Scope Review

Review drawings, existing conditions, project constraints, schedule, and mechanical intent before equipment and installation decisions are locked in.

System Planning

Support system approach, equipment placement, ventilation, routing, access, controls-ready requirements, and installation planning around actual project conditions.

Field Coordination

Coordinate with the GC, architect, engineer, owner, and other trades so the mechanical scope fits the project schedule and jobsite reality.

Installation and Closeout

Execute the HVAC scope with attention to sequencing, workmanship, startup, documentation, and closeout requirements.

Commercial HVAC Coordination Considerations

Commercial HVAC touches architectural intent, structural conditions, electrical coordination, controls readiness, ceiling space, equipment access, and closeout requirements. Our role is to keep the mechanical scope clear and buildable.

  • Existing building conditions
  • Rooftop access
  • Ductwork and air distribution
  • Electrical coordination
  • Access and serviceability
  • Schedule pressure
  • Ceiling space and routing
  • Equipment placement
  • Trade sequencing
  • Controls-ready boundaries
  • Startup and closeout

Commercial Project and System Types

Project types

  • Tenant improvements
  • Office buildouts
  • Retail interiors
  • Hospitality conversions
  • Institutional upgrades
  • Religious and community facilities
  • Mixed-use projects
  • Multifamily projects
  • Commercial new construction
  • Existing building retrofits

System types

  • Packaged rooftop systems
  • Split systems
  • Heat pump systems
  • VRF and multi-zone systems
  • Ductwork and air distribution
  • Ventilation modifications
  • Controls-ready equipment coordination
  • BACnet-capable equipment preparation

Principal-Led Execution

On commercial projects, the costliest problems often begin as missed coordination details. A routing assumption, equipment location, access issue, or unclear scope boundary can create field delays and rework later.

3rdGen stays close to the work from scope review through installation. That structure keeps decisions connected, practical, and accountable.

Planning a Commercial Mechanical Scope?

Send the project location, timeline, drawings if available, and a short description of the HVAC scope. If it looks like a fit, we'll follow up to discuss the right next step.

Discuss a Project