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Discover Ortec Environnement Lillebonne
The Ortec Environnement Lillebonne 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.
Ortec Environnement Lillebonne is MASE-certified, a benchmark certification in Health, Safety and Environment (HSE). This certification demonstrates our commitment to providing safe working conditions, preventing risks, and continuously improving our practices, while complying with the most stringent environmental standards.
Agency expertise
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
Low-Pressure Abrasive Blasting:
For our parts cleaning, surface refurbishment and descaling operations, we use low-pressure abrasive blasting. This low-pressure surface treatment is more environmentally friendly and provides an alternative to chemical stripping. This technique can be used on metal, wood, stone, and plastic surfaces.
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.
Mechanical Cleaning:
Whether manual or mechanized, our expert teams implement custom mechanical cleaning solutions to meet the specific requirements of your installations and equipment.
Basin Pumping and Cleaning:
We carry out pumping and cleaning operations for your basins, from one-off services to comprehensive contracts, using well-established processes tailored to your installations.
Pumping, Cleaning, and Degreasing of Vessels:
Tanks, pits, grease traps, screw conveyors, etc.
Our pumping, cleaning, and degreasing services are carried out using the most effective and innovative techniques, including industrial vacuum units, hydrocleaning equipment, and hydrodynamic and mechanized methods, to ensure the long-term reliability of your installations. The extracted materials are tracked with a view to subsequent reconditioning.
Hazardous Material Pumping:
To meet your production equipment maintenance and cleaning needs, we carry out hazardous material pumping operations in compliance with current environmental and safety standards.
With its industrial experience, the Ortec Group is your trusted partner for comprehensive industrial maintenance, whether predictive, preventive, or corrective, in order to maintain and optimize the performance of your production tools. From execution to the overall management of an outsourced function, our versatile teams adapt to build a solution tailored to your needs and ensure the maximum availability of your facilities at the best cost.
Comprehensive and Specialized Maintenance of Production Facilities:
At your industrial site, our local team supports you with comprehensive industrial maintenance, as well as a wide range of specialized services dedicated to production facilities.
Handling / Lifting:
Under optimal safety conditions, our expert teams carry out the most delicate handling and lifting operations on your industrial sites. With risks fully managed by our specialists, all the conditions are met for a responsive and reliable service.
Preventive Maintenance:
To support you in addressing constantly evolving maintenance challenges, we implement preventive maintenance plans or carry out one-off preventive maintenance operations on your facilities to ensure their longevity and guarantee business continuity.
Unit Modification and Construction Work:
We carry out revamping and unit construction work to meet your process creation or process development needs. Through piping, boilermaking, structural steelwork, etc. we help maintain and/or optimize the performance of your production tools.
Cleaning, Vacuum Extraction, and Draining Work:
As part of our industrial maintenance services, we carry out vacuum extraction, pumping, and cleaning operations for all your vessels and containers, whether containing liquids or powdery materials.
Industrial Transfer, Deconstruction, and Dismantling:
Industrial transfer, deconstruction, and dismantling are integral parts of the lifecycle of industrial facilities. Our field experts support you in preparing these operations, providing studies and execution monitoring.
Removing a fuel oil tank is a mandatory when you want to change or upgrade your heating system. Our teams support you throughout this process: from advice through removal of the fuel oil tank.
Due to the nature of the products contained in the tank (fuel oil, deposits/sludge, gas), this operation must be carried out by trained and qualified professionals in order to manage all risks to people, property, and the environment.
Several sensitive operations are required before your tank can be removed:
- 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.
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.
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.
A partner to industrial companies for 30 years, our versatile team designs custom solutions and brings together all its areas of expertise to successfully carry out unit shutdowns at your industrial site. A unit shutdown is an essential planned interruption that makes it possible to check the condition of your equipment and carry out maintenance, modernization, extension, or cleaning work. With leading experts by your side, you can manage this large-scale project with the aim of returning equipment to service quickly and optimizing your production capacity.
Work planning:
We support you in the management of your unit shutdowns from the operational planning phase onward. By methodically optimizing work sequencing and managing potential simultaneous operations, we significantly reduce overall process downtime.
Blinding / de-blinding:
The installation, removal or handling of metallic blinds is a high‑risk operation, with potential risks of leaks, air ingress or product releases. To carry out these operations with the required level of safety and reliability, our blinding and de-blinding services are performed by trained and certified professionals, in strict compliance with clearly defined operating procedures.
Degassing and Inerting of Circuits or Units:
Degassing and inerting operations are essential to control accident risks and to secure circuits, vessels and process units, meeting the highest technical and safety standards.
Dismantling and Reassembly of Equipment:
Our services for equipment dismantling and reassembly (columns, bundles, piping, pumps, etc.) are carried out using proven expertise, in full compliance with applicable safety standards and taking into account any residual pressure or energy within the equipment.
Removal and Handling Operations:
We perform removal and handling operations of all types and sizes, with preservation of installations and equipment as a priority. Designed in close cooperation with our clients, each service is tailored to your specific needs, delivered within agreed cost and schedule constraints, and includes all required testing and inspections.
Piping and Boilermaking Repairs:
Performed in strict compliance with applicable codes and standards and regulations, and with the objective of “0 leaks at restart”, our piping and boilermaking repairs are executed in synergy with other on‑site activities, using proven and reliable methods.
Preparation for Inspections and Pressure Testing:
We support you in preparing for technical inspections and pressure testing in order to qualify equipment or systems for a new operating cycle.
Restart Assistance:
We provide support and assistance during the inspection and control phases prior to restart of your installations, ensuring optimal conditions for safe and efficient return to service.
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.
“Clean Factory” Agreement:
Created in 1995 by the Ortec Group, the “Clean Factory” agreements are designed by our expert teams for the comprehensive management of waste at your site. Throughout the entire chain, you benefit from solutions that address environmental and regulatory challenges, with the objectives of reducing waste at source and achieving maximum recovery.
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
Petrochemicals – Oil & Gas:
For more than 40 years, the Ortec Group has supported players in the Oil & Gas sector, as well as key upstream and downstream decision-makers in the onshore and offshore oil industry. With a comprehensive service offering spanning design through maintenance of facilities, our local teams cover the entire project lifecycle.
Heavy Industry:
With its extensive expertise, including its know-how in industrial activities, the Ortec Group offers heavy industry players a wide variety of services. These sectors are linked to the production or processing of raw materials, such as mining, cement plants, gypsum products, and paper mills.
Chemicals / Pharmaceuticals:
The challenges faced by companies in the chemical and pharmaceutical industries are numerous. The Ortec Group is a trusted partner to these sectors, offering a comprehensive range of services tailored to each client’s needs, including project management, unit shutdowns and turnarounds, industrial cleaning, site remediation, and waste recovery.
Energy and Nuclear:
With a strong presence in the energy sector for almost 70 years, Ortec Group leverages its expertise to support its customers. The cross-functional know-how of the Group’s various agencies is recognized by leading industry players, making the Ortec Group a key player in the energy sector, and more specifically in the nuclear sector.
Renewable Energy:
The Ortec Group works alongside major French and international industrial players on activities related to wind power, solar power, hydropower, and biomass. With turnkey solutions, the Group provides support from design through operation, including facility maintenance.
Food Industry:
For more than 30 years, Ortec Group has supported companies across the food industry. From project execution to fully outsourced services, the Group delivers its expertise and know-how to support this vital sector of the economy.
Certifications
Prefectural Declaration Receipt – Department 13:
The Ortec Environnement Lillebonne 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.
MASE/UIC Certification (Manual for the improvement of company safety / Chemical Industries Union):
The Ortec Environnement (OE) Lillebonne agency, a subsidiary of the Ortec Group, holds MASE/UIC certification for its industrial cleaning, industrial maintenance, and waste management activities. This certification aims to reduce workplace risks through a Health, Safety, and Environment management system.
Agency contact details
Route du Bord de Seine
76170 Lillebonne
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