HVAC Ductwork & Zoning

Tenant Build-Outs & Improvements

HVAC Ductwork Modifications and Thermostat Zoning

HVAC modifications are one of the most common sources of tenant improvement delays, because ductwork changes require mechanical permits, mechanical inspections, and often coordination with the building's base building mechanical systems. We account for all of that in the project schedule from the start — not when we're already weeks into construction.

A typical commercial HVAC modification for a Southeast Michigan tenant improvement involves extending trunk lines to serve new areas of your floor plan, adding VAV boxes to create independent zones, positioning supply diffusers and return grilles for even distribution in each room type, and installing programmable thermostats for zone control. We also address common problems like hot and cold spots, inadequate airflow in conference rooms, and poor air quality in interior spaces without operable windows.

For Oakland County buildings with strict property management requirements about mechanical system modifications, we work within those protocols — getting landlord approval before touching base building systems, using approved mechanical contractors where required by the lease, and providing as-built documentation for building management records. This process takes time, and we plan for it. Businesses that don't account for landlord approval cycles on HVAC work run into avoidable delays.