11/06/2026
NF S61-932: An amendment that redefines the oversight of actuated devices of safety
DEF’s preventive and predictive maintenance is based on structured methods and ongoing analyses, ensuring the reliability of fire safety systems and enabling the early detection of potential failures.
Organising maintenance activities in accordance with regulatory requirements and operational constraints to ensure regular and structured monitoring of the installations.
Conducting tests, inspections, and maintenance to keep the systems in optimal operating condition.
Analysing data from installations and maintenance records to better understand system behaviour.
Identification of anomalies or deviations that signal impending failures, enabling action to be taken before an incident occurs.
Tailoring maintenance activities based on the actual use of the installations and their condition, for more targeted and effective maintenance.
Anticipate failures to minimise critical situations and unplanned interventions.
Our support
A structured approach to ensuring the safety of your fire safety projects from the very beginning.
An approach focused on prevention and continuity.
Systems maintained in optimal condition.
Maintenance that complies with regulatory requirements.
Fewer emergencies, more control.
Our services
We offer services tailored to your needs, to support you effectively and guarantee quality results.
Analysis of your installations and requirements to identify areas for improvement. We support you in defining your needs and implementing appropriate solutions.
Design and roll-out of bespoke technical solutions. We handle commissioning and verify that your equipment operates correctly.
Predictive, preventive and corrective maintenance to guarantee the performance and reliability of your installations. Rapid response throughout France to ensure an optimal level of safety and extend equipment life.
Modernisation and upgrades of your equipment for optimal financial management of your system. Training for your teams to use the installations efficiently.