Lewin’s Change Management Model, Explained
Unfreeze, change, refreeze — the classic model that still frames how teams approach change, and where it helps (and where it falls short).
If you’ve read anything about change management, you’ve met Lewin’s model — usually drawn as three blocks: unfreeze, change, refreeze. It’s one of the oldest frameworks in the field, and despite being decades old it’s still the mental model a lot of managers reach for first. Here’s what it actually says, and when it’s worth using.
What Lewin’s model actually is
Kurt Lewin, a psychologist writing in the 1940s, argued that changing how people work is less about the new process and more about the human resistance around it. His idea: behaviour sits in a kind of frozen equilibrium, held in place by habits and social pressure. To shift it you have to melt that equilibrium, move to a new state, then set it solid again. Three stages — unfreeze, change, refreeze.
Stage 1: Unfreeze
Before anyone will do things differently, they need a reason to let go of how things are done now. Unfreezing is the groundwork: making the case for change, surfacing the problems with the status quo, and getting people uncomfortable enough with the old way that they’re open to a new one. Skip this and you get the classic failure mode — a shiny new system that everyone quietly ignores.
Stage 2: Change (or “move”)
This is the transition itself — new processes, new tools, new behaviours. It’s messy and uncertain, and it’s where most of the anxiety lives. Lewin’s point is that this stage needs active support: clear communication, training, a few quick wins, and leaders who model the new way rather than just mandate it. People are learning, so they’ll be slower and more error-prone before they get better. Steering all of this — the plan, the comms, the resistance — is usually the job of a dedicated change manager.
Stage 3: Refreeze
Change that isn’t locked in tends to snap back. Refreezing means making the new way the normal way — updating job descriptions, building it into how performance is measured, recognising the people who’ve adopted it. The goal is a new, stable equilibrium, so the organisation doesn’t quietly drift back to old habits the moment attention moves on.
When it helps — and when it doesn’t
Lewin’s model is a great teaching tool and a solid checklist for a defined, one-off change: a system migration, a restructure, a new policy. Its weakness is the “refreeze” idea itself. In plenty of organisations change never really stops long enough to freeze — it’s continuous. Critics argue the model is too linear and too top-down for fast-moving environments, which is why later frameworks like Kotter’s eight steps and the ADKAR model built on it rather than replaced it. Use Lewin’s for the shape of the thinking; reach for the others when change is constant. Knowing which model fits which situation is bread-and-butter for a change management consultant.
Taking it further
Understanding the model is one thing; running real change is another — and it’s a recognised, certifiable skill. If change management is part of your role, or where you want your career to head, a formal qualification gives you the full toolkit and a credential employers recognise. Our Change Management courses cover the Foundation and Practitioner levels, studied online at your own pace.