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Discover Ortec Environnement Nantes
The Ortec Environnement Nantes agency, an expert in environmental services, supports you with all types of operations, including sanitation, 3D hygiene, industrial cleaning, and building maintenance, providing practical and effective solutions.
Agency expertise
Through its network of local agencies, the Ortec Group offers preventive and corrective services for the diagnosis, installation, maintenance, and renovation of your sanitation networks and related structures. Our professional team is available every day to meet your needs, whether they are one-off, urgent, or recurrent, 24/7.
Cleaning and pumping of networks and infrastructure:
Sanitation networks and related structures require regular maintenance. Our expert teams support you with all maintenance, pumping, cleaning and unclogging operations on pipes of all diameters.
Draining, Maintenance and Inspection of Equipment:
Our teams support you with the draining, maintenance, servicing, and inspection of a wide range of your equipment, including: septic tanks, oil separators, grease traps, pumping stations, fuel tanks, reservoirs and basins, pools filters, dry risers (fire‑fighting systems), etc.
Grease Trap Draining and Cleaning:
The purpose of a grease separator, or grease trap, is to remove animal and vegetable fats from household wastewater in order to prevent drainage pipes from becoming clogged.
Regular maintenance is essential to ensure proper operation. To keep your equipment functional and compliant with current legislation, our teams carry out the pumping, draining, and maintenance of your grease trap.
Optimal maintenance requires draining once a month.
Hydrocarbon Separators:
Our maintenance, pumping, cleaning, and waste management services for hydrocarbon separators enable you to keep your installation in optimal working condition and to comply with current environmental standards.
Confined Space Operations:
As industrial cleaning specialists, we carry out operations in confined spaces. Because this type of service involves risks, it is performed by teams trained according to defined procedures / operating methods, using suitable equipment (ventilation systems and self-contained breathing apparatus (SCBA), etc.).
- Draining, degassing, and cleaning
- Neutralization
- Dismantling and removal
- Waste management
- Certificate of compliance
Ortec’s local teams carry out all of these operations while managing risks and complying with regulations.
Find out all the details on MaPrimeRénov’, which is available to all owners, whether owner-occupiers or landlords, as well as to condominium associations for work in common areas.Whether traditional or trenchless, such as lining, rehabilitation solutions are designed to restore damaged sanitation networks. For one-off interventions, such as repairs, or as part of renovation programs, our team of experts restores optimal operating conditions for your sanitation network.
For more information, visit our dedicated page on Pipe Renovation and Repair
Plumbing:
As part of the maintenance of your premises, our local teams carry out all types of plumbing work: unclogging, repairs, maintenance, replacement of pipes, etc. For emergency repairs, our experts are available to support you 7 days a week.
Diagnosis of Flow Problems:
Our local team carries out the diagnosis and inspection of pipes, whether accessible or non-accessible, new or old.
Inspections are carried out using cameras mounted on robots or drones.
Our specialized CCTV camera inspection equipment enables us to check the condition of your pipes, carry out accurate diagnostics, and identify any malfunctions or flow problems.
For more information, visit our dedicated page on Pipe Inspection and Diagnostics
Leak Detection:
Using a variety of techniques, including acoustic correlation, tracer gas, and video inspection, we carry out leak detection on all types of pipes and networks: drinking water, wastewater, and stormwater. We provide advice and technical solutions for repairing or replacing your pipe networks.
For more information, visit our dedicated page on Leak Detection.
Pipe Tightness Testing:
Our teams carry out tightness tests in accordance with current standards on new sanitation networks, wastewater networks, stormwater networks, as well as manholes and connections.
Compaction Testing:
After new networks have been installed, we carry out compaction tests to verify the structural stability of the works.
Network Geolocation and Network Tracing on Plans:
Before any intervention, we geolocate networks and trace them on plans while preserving their integrity.
Cleaning of Kitchen Hoods, Ventilation Systems, and Garbage Chutes:
To ensure proper maintenance of your premises and compliance with hygiene standards, our local teams support you with the cleaning and disinfection of kitchen hoods, ventilation systems, and garbage chutes.
Lift Pump Maintenance:
We maintain your lift pumps through trained teams with proven know-how, ensuring rigor, responsiveness, and compliance of your installations.
The Ortec Group has know-how and proficiency in a broad variety of techniques to offer custom industrial cleaning solutions. From one-off services to the overall “Clean Factory” agreement, our teams master a wide range of techniques and processes, whether manual or mechanized, for your industrial site. You can be confident in the long-term reliability and performance of your installations, as well as in the integrity of your processes.
Dry material vacuuming:
As part of on‑site industrial cleaning operations, our expert teams carry out pumping and vacuuming of powdered materials, i.e. dry materials in powder or dust form.
Hydrodynamic cleaning from 150 to 2500 bar (HP, VHP, UHP):
Recognized as an efficient and environmentally friendly process, we provide customized manual or mechanized cleaning solutions adapted to all types of fouling at your industrial site:
- High-pressure cleaning (HP): 150–300 bar
- Very high-pressure cleaning (VHP): 300–600 bar
- Ultra high-pressure cleaning (UHP): 600–2500 bar
Cryogenic Cleaning:
Using cold as a cleaning agent, cryogenic cleaning enables our teams to effectively treat all types of equipment and difficult surfaces.
Chemical Cleaning:
Our expert teams support you with a wide range of chemical cleaning techniques: degreasing, deoxidation, decontamination and passivation.
Automated / Robotic Cleaning:
To improve efficiency, reduce operation time, and enhance safety conditions, our specialized automated cleaning solutions custom-designed according to your expectations and installations. Our NT-4 robot descales condenser tubes at nuclear sites. The NED robot decontaminates reactor building pools. Remotely operated, these solutions keep operators away from risks such as high pressure and contamination, while improving the repeatability of operations.
Hot Water / Steam Cleaning:
As part of our broad range of cleaning techniques and processes, we provide custom solutions such as hot water and steam cleaning. By accelerating the removal of deposits, this method reduces operation time and the use of resources such as water, electricity, detergents, etc.
Confined Space Operations:
As industrial cleaning specialists, we carry out operations in confined spaces. Because this type of service involves risks, it is performed by teams trained according to defined procedures / operating methods, using suitable equipment (ventilation systems and self-contained breathing apparatus (SCBA), etc.).
From sanitation network repairs to lift pump maintenance, for collective housing, public buildings, hotels, and more, the Ortec Group provides property upkeep and building maintenance for condominium managers, property managers, social housing providers, and industrial companies. It handles all types of preventive and corrective interventions across property portfolios. Through our network of local agencies, our on-call teams, and our innovative tools, we operate in compliance with schedule, deadline, and cost constraints to ensure that your premises, housing units, common areas, and offices can be used under optimal conditions.
Service Continuity after Damage Events:
Public and private companies, as well as buildings affected by damage events such as fires, water leaks, floods, electrical short circuits, need to restore their business premises to working order as quickly as possible. Our local teams can respond within a very short timeframe.
From collection and transportation, delegated management, consolidation, and pre-treatment through to treatment and recovery, the Ortec Group supports you with innovative solutions tailored to your needs. Through an agency near you, we are by your side at every stage of waste management, whether for non-hazardous or hazardous waste. Whatever the waste stream, we can implement the appropriate solutions.
Collection and Transportation:
Our team is ready to meet your needs for the collection and transportation of liquid and solid waste, in compliance with environmental regulations. To do this, we provide and manage the necessary containers, as well as collect and transport the waste to the appropriate facilities.
Pre-Treatment and Treatment:
To ensure waste traceability, tracking of all stages of waste acceptance and treatment is digitized. Our teams comply with each phase of the process: acceptance, weighing, unloading, administrative tracking, and more. Depending on its nature, the waste is then consolidated and treated, or sent to the appropriate channels for maximum recovery.
Dumpster and Compactor Rental:
To facilitate the collection and management of your waste, our local teams offer dumpster and compactor rental services.
Once the equipment has been delivered to your site, our teams manage the provision of equipment, collection and transportation of waste to approved channels (waste, bulky items, etc.)
Agency services
Business sectors
Nuclear
Defense
Chemicals / Pharmaceuticals
Food Industry
Transportation / Logistics
Aeronautics / Aerospace
Renewable Energy
Heavy Industry
Tertiary
Public Administrations / Local Authorities
Private Individuals
Oil & Gas
Construction & Public Works Sector:
The Ortec Group supports dismantling and remediation projects for industrial companies and players in the construction and public works sector, from consulting through to complete redevelopment, offering the most efficient, responsible and economically viable solution for each situation.
Local Authorities:
The Ortec Group supports towns and local authorities in their efforts to provide residents with a healthy and pleasant living environment. In compliance with current environmental standards, Ortec offers town halls, schools, and other public administrations its expertise and tailored solutions to ensure day-to-day hygiene and cleanliness for the community.
Private Individuals:
From diagnosis through to execution, the Ortec Group, through its local Ortec Environnement agencies, offers a wide range of services for private individuals in their homes: draining, cleaning, pumping, cleaning services, insect control, maintenance, connection work, plumbing work, and more. The Group offers turnkey services for the day-to-day maintenance of your home.
Tertiary:
The Ortec Group brings its full experience and expertise to players in the tertiary sector. Through its local Ortec Environment agencies, small and medium-sized businesses, real-estate professionals, food retailers, and hospitality and food service operators benefit from consulting services and solutions in sanitation, building maintenance, 3D hygiene, cleaning, and waste management.
Certifications
Prefectural Declaration Receipt – Department 13:
The Ortec Environnement Nantes agency holds the prefectural declaration receipt for the trading, brokerage, and transport of hazardous and non-hazardous waste: hydrocarbon-contaminated water, acids, bases, and aqueous industrial waste. It guarantees health and safety conditions for producers, waste disposal operators, and any other waste consignors, and is able to transfer collected waste under optimal conditions for subsequent recovery.
Non-Collective Sanitation Accreditation (ANC):
The Ortec Environnement (OE) Nantes agency, a subsidiary of the Ortec Group, holds draining operator approval for the draining and transport, to the disposal site, of materials extracted from non-collective sanitation systems.
Agency contact details
44700 Orvault
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Documentation
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AGENCY REFERENCES





Rehabilitation of Two Pipe Networks by Lining at a Private Home
Over a two-day period, our teams carry out investigations and rehabilitate two pipe networks (wastewater and blackwater) by lining at a house in Ancenis. The agency performs network cleaning and CCTV inspection, opens the floor drains in the garage, repairs the shower tray drainage and connects it to the existing networks, installs an inspection chamber, and opens the existing inspection chambers on the terrace in order to carry out 11 meters of pipe lining.
Stormwater Network Rehabilitation by Lining
Following a request from a local authority based in Nantes after infiltration was detected in its cast-iron stormwater network, the agency carries out a visual inspection of the structure. Following this investigation, the agency performs mechanical cleaning and lines 20 meters of the network over a two-day period, as well as connecting it to an underground garage.





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Friedlander at the 42nd edition of Espace Collectivités
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