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Building inside an occupied hospital: what the facility director needs to see from the contractor

ICRA, ILSM, shutdowns and the conversation with nursing. What separates a contractor who has done it from one who says they have.

Elena Marsh, President and CEO · July 14, 2025 · 5 min read

Renovating an occupied hospital is the hardest thing a general contractor does. Patients are on the other side of the wall. Here is what a facility director should expect, and what to look for in the interview.

An infection control risk assessment for every phase

The ICRA defines the class of containment for each phase of work: barriers, negative air, HEPA, anterooms, how workers enter and leave. It is written with the facility's infection prevention staff and reviewed before every phase. A contractor who has done this has ICRA templates and can describe class IV containment without looking it up.

Interim life-safety measures

Construction changes exits, fire separations and alarm coverage. The ILSM plan documents what is affected and what compensates: fire watch, temporary exits, extra extinguishers. The Joint Commission asks for it.

Shutdowns planned with nursing

Medical gas, power, water and HVAC shutdowns are scheduled weeks out with nursing leadership, not with facilities alone. The superintendent should know which units are affected and who the charge nurse is.

A superintendent who has done it

Ask the superintendent, not the PM, how many occupied-hospital projects they have run. It is a field skill. Ours has run thirty.

What it costs

Occupied-hospital work costs more and takes longer than the same square footage in a shell. A contractor who prices it like a TI has not done it.

Next step

Tell us about the project. We will tell you what it costs and how long it takes.

A project executive replies the same business day. Conceptual estimates within two weeks of the information we need.

Demonstration site. Meridian Builders is a fictional company. Designed and built by Ironsite Digital to show what a commercial general contractor's website should be. Want one like it?