BMS ADVISORY
"Obsolete" BMS: do you really need to replace everything?
Your building is less than 15 years old. Yet a quote for hundreds of thousands of euros arrives to replace all LON controllers. Before investing, verify what is actually necessary.
A progressive migration can often divide investments by a factor of 10


The problem
A legitimate doubt: do you really need to replace everything?
In many buildings (< 15 years):
- the maintainer announces controller or supervisory system obsolescence
- end of manufacturer support announced
- high dependency on a legacy integrator
Result:
- proposals for full replacement
- high investment costs
- conflict of interest from the maintainer making the proposal
- limited ability to challenge technically
Necessity… or avoidable over-investment?

Our approach
Move beyond theory. Test controller replacement in real conditions.
Technical diagnostic
- software and hardware obsolescence level (controllers, supervision, network)
- dependency analysis between equipment
- identification of critical points
Operational replacement test
- Decommissioning and replacement test of a controller under operating conditions
- consultation with third-party BMS integrators
- cost, timeline, and complexity analysis
- identification of actual maintainer dependencies
This test moves you from theoretical claims to lived reality.

The strategy
Avoid mass replacements. Build a BMS sustainability strategy.
Based on the diagnostic and field test, we define a tailored strategy:
- secured maintenance of existing systems
- progressive migration
- full replacement only if justified
- limit operational risks
- spread investments over time
- reduce vendor dependency
You regain control of your building's trajectory.
The result
Decide with full knowledge
- you truly understand the state of your BMS
- you avoid unnecessary replacements
- you secure your investments
- you build a sustainable strategy
Move from a forced decision to an informed one.