Electrical maintenance services
Preventive and corrective electrical maintenance

Electrical systems are the energy backbone of any infrastructure. To ensure their performance, durability, and operational safety, a well-structured maintenance program is essential.

Our approach

The reliability of your installations starts with rigorous maintenance

Entreprise Électrique MJL offers comprehensive maintenance, inspection, and troubleshooting services for all types of electrical installations—whether industrial, commercial, institutional, or high-voltage networks.

With the support of MJL Systèmes Automation and Ligne STE, we provide a uniquely integrated expertise capable of intervening throughout the entire lifecycle of your electrical and automated systems.

Industrial variable frequency drives inspected and maintained by MJL Électrique as part of an electrical maintenance service in Quebec
Our services

A proactive approach to preventing breakdowns

At Entreprise Électrique MJL, we prioritize a preventive rather than reactive approach. Our maintenance programs are designed to minimize the risk of failure, extend the lifespan of your equipment, and reduce costs associated with production downtime.

Inspection and maintenance of electrical components

Complete visual and mechanical inspection of your distribution panels, circuit breakers, and wiring. We identify signs of wear, corrosion, or overheating to prevent failures before they occur.

Maintenance of MV/HV installations. In collaboration with our specialized partner, we maintain your transformers, disconnect switches, and private substations. This includes oil analysis, insulator cleaning, and grounding verification to ensure the safety of your main power supply.

A non-destructive technique that detects overheating invisible to the naked eye (loose connections, phase imbalance) without interrupting production. A detailed report is included for insurance purposes.

Inspection and cleaning of control panels, programmable logic controllers (PLCs), and variable frequency drives. We verify ventilation, connection tightness, and proper instrumentation operation to prevent overheating and ensure continuous process stability.

Inspection et entretien des composantes électriques

Inspection visuelle et mécanique complète de vos panneaux de distribution, disjoncteurs et câblage. Nous identifions les signes d’usure, de corrosion ou de surchauffe pour prévenir les bris avant qu’ils ne surviennent.

Entretien des installations MT/HT En collaboration avec notre partenaire spécialisé, nous assurons l’entretien de vos transformateurs, sectionneurs et postes électriques privés. Cela inclut l’analyse d’huile, le nettoyage des isolateurs et la vérification des mises à la terre pour garantir la sécurité de votre alimentation principale.

Une technique non destructive permettant de détecter les surchauffes invisibles à l’œil nu (connexions desserrées, déséquilibre de phases) sans interrompre votre production. Rapport détaillé inclus pour vos assurances.

Nos experts évaluent la consommation et l’efficacité de vos installations pour proposer des solutions d’optimisation énergétique qui réduisent vos coûts d’exploitation.

Nous produisons tous les documents techniques requis (devis, dessins d’atelier et fiches de conformité) pour assurer une planification claire et une exécution sans erreur de vos projets.

Inspection et nettoyage de vos panneaux de contrôle, automates (PLC) et variateurs de vitesse. Nous vérifions la ventilation, le serrage des connexions et le bon fonctionnement de l’instrumentation pour prévenir les surchauffes et assurer la stabilité continue de vos procédés.

Each intervention is planned to minimize impact on your operations and is fully documented to ensure comprehensive tracking of the electrical performance of your installations.

Rapid response

Emergency service

In the event of a breakdown or incident, our emergency teams are available 24 hours a day, 7 days a week to quickly diagnose and repair any electrical issue.

Thanks to our collaboration with Ligne STE for power systems and MJL Systèmes Automation for automated systems, we ensure fast and safe restoration of service, even in the most critical situations.

Electrical emergency or production shutdown?

Trust Entreprise Électrique MJL

Do you need to perform preventive electrical maintenance?

Choosing Entreprise Électrique MJL means relying on recognized technical expertise, constant availability, and a strong commitment to the reliability of your installations. We work alongside you to ensure your electrical systems remain high-performing, compliant, and safe, day after day.