Asbestos removal
Colas, through Premys, is certified for asbestos removal operations under subsections 3 and 4 (SS3/SS4). Our specialized teams work on all types of buildings—industrial, commercial, or residential—ensuring occupant safety, waste traceability, and regulatory compliance.
Each intervention is carried out in strict accordance with protocols, with complete control over containment, removal, and inspection of asbestos materials.
Our SS3/SS4 expertise, across France
Certified for SS3 and SS4 interventions, Premys operates nationwide with trained teams, controlled procedures, and continuous quality monitoring, ensuring safe and compliant sites.
SS3 (removal/encapsulation): framework, equipment, and controls
Subsection 3 (SS3) sites involve asbestos removal or encapsulation operations.
Premys implements a strict process: full containment, negative pressure in the work area, decontamination, followed by safe removal and secure packaging.
Continuous dust monitoring and air analyses are carried out before the site is handed back.
SS4 (interventions): use cases & prevention
Subsection 4 (SS4) sites involve limited or occasional work on materials that may contain asbestos, such as maintenance, drilling, or cutting tasks.
Premys carries out these operations with strict preventive procedures and trained, certified teams, ensuring the safety of both operators and occupants.
Health, safety & environment
Safety is at the heart of every intervention.
Our teams operate with the highest standards and a certified organization, ensuring reliability and compliance:
- Mandatory SS3/SS4 training and up-to-date certifications for all operators.
- Teams certified according to Qualibat 1552 or AFAQ-ACERT qualifications.
- Personal protective equipment (PPE) and decontamination systems compliant with regulatory requirements.
- Prevention plans, dust monitoring, and systematic medical follow-up.
- Control of disturbances (noise, dust, vibrations) and continuous air quality monitoring.
Premys is committed to protecting people and the environment while ensuring business continuity on occupied sites whenever possible.
A controlled 6-step process
Waste management and recovery
Asbestos waste is sorted, packaged, labeled, and transported to approved storage or treatment facilities. Monitoring forms (BSD) ensure full traceability from the containment area to the final disposal site.
Colas and Premys are committed to minimizing waste volumes and promoting the recovery of non-hazardous materials from related operations (stripping, deconstruction).
References and use cases
Our teams operate on all types of sites:
- Industrial: high-risk areas, production units, or thermal power plants.
- Urban buildings: work in shared spaces, sensitive or occupied sites.
- Heritage & public infrastructure: interventions under architectural or specific regulatory constraints.
Each project demonstrates our expertise in safety, compliance, and environmental performance, supported by nationwide operational responsiveness.
About Premys
Premys, a subsidiary of the Colas Group, specializes in deconstruction, remediation, and rehabilitation of structures. Operating nationwide, it manages projects from site preparation to material recovery, following a circular economy approach and preserving natural resources. As a leading player in sustainable deconstruction, Premys supports public authorities and businesses with safe, certified, and responsible solutions.
Frequently questions
SS3: asbestos removal or encapsulation (long, confined operations).
SS4: occasional interventions (maintenance, drilling, or sampling).
Yes. Before any work, an asbestos survey (RAT) is required to ensure the safety of workers.
Companies must hold SS3/SS4 asbestos certification issued by an accredited body (Qualibat 1552).
They are packaged, transported, and tracked to an approved disposal site, in compliance with ADR regulations and BSD forms.
Tell us about your project
Do you have an asbestos removal or deconstruction project involving asbestos-containing materials?
Our Colas & Premys teams support you across France with certified, safe, and regulatory-compliant solutions.
