At Agresa, we have always said that selling a generator set is only the first step. What truly makes the difference is the follow-up and maintenance we provide afterwards. A generator can be new, powerful, and from a well-known brand, but if it is not properly maintained, over time it can lose performance or even fail to respond at the most critical moment.
That is why our commitment goes far beyond supply: we work to ensure that every unit we install continues to operate as it did on day one, year after year.
Maintenance: the Key to Reliability
When a generator set is in service, every start-up, every operating hour, and every temperature change leaves its mark on performance. Although these units are designed to withstand heavy loads and operate under demanding conditions, they require regular attention to remain in optimal condition.
This is especially important for emergency generators, which often remain idle for months and, when required, must start immediately and without failure. A simple battery issue, a clogged filter, or dirty injectors can cause the generator to fail to start precisely when it is most needed.
Over time, we have learned that investing in maintenance means saving money: saving on costly repairs, downtime, and, above all, unnecessary worries. A well-maintained generator can have a much longer service life and retain its energy efficiency for many years.
How We Manage Maintenance at Agresa
At Agresa, we offer customized maintenance plans for each client, tailored to the type of installation, operating hours, and the criticality of the service. An emergency generator for a hospital is not the same as one supplying an irrigation system or a production plant. Each requires specific attention, a different inspection frequency, and an appropriate testing protocol.
Our process begins with digital planning. We use an internal system that allows us to schedule every preventive visit and notify both our technicians and the client in advance. This ensures that no inspection is overlooked and that maintenance is carried out at the optimal time.
During each intervention, our technicians perform a comprehensive inspection that includes:
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Oil and filter changes, according to operating hours or equipment age.
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Verification of the electrical and control systems, checking alarms, relays, and connections.
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Inspection of the starting system, especially the condition of batteries and the automatic charger.
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Inspection of the cooling and fuel systems, identifying leaks or contamination that could affect performance.
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Load testing, to ensure the generator delivers the correct power and voltage under real operating conditions.
Each intervention is documented with detailed reports, photographs, and reference measurements. This traceability allows the client to know exactly what has been done, the current condition of the equipment, and the recommended actions for the coming months.
The Advantages of Preventive Maintenance
The benefits of this type of maintenance are clear and measurable.
First, it helps prevent major failures. Many issues begin with small, unnoticed symptoms: a slight noise, an irregular vibration, or higher-than-normal oil consumption. Detecting these early prevents them from turning into a complete engine or generator shutdown.
Second, it improves efficiency. A generator that operates cleanly, with new filters and correct settings, consumes less fuel and produces fewer emissions. This also helps reduce environmental impact, a priority at Agresa and a key part of our commitment to ISO 14001.
Finally, it extends service life. We have units installed more than fifteen years ago that continue to operate daily without major incidents. This is possible because they have been subject to continuous preventive maintenance from the very first day. The difference between a generator that lasts 5 years and one that lasts 15 is usually not the manufacturer, but the maintenance.
A Fast Response When It Matters Most
Although prevention is essential, we know that unexpected situations can still arise. That is why we provide a 24/7 technical service with trained personnel and fully equipped vehicles, ready to respond anywhere in Catalonia and surrounding areas.
When a client contacts us about an incident, our goal is to restore service as quickly as possible. We maintain our own warehouses stocked with original spare parts and a fleet of backup generators to support critical installations while the issue is being resolved.
This fast and close support is why many clients see us not as a simple supplier, but as a trusted technical partner. We know every installation, every start-up routine, and every detail that can make the difference between a minor issue and a true emergency.
Our Commitment to Reliability
At Agresa, we believe that energy is synonymous with peace of mind. When a client calls us, they are not just looking for a generator set; they are looking for the assurance that, no matter what happens, their business will continue to operate.
That is why we work with rigor, planning, and proximity. Every maintenance task, every inspection, and every test reflects our philosophy: doing things right, always.
Maintenance is not an expense; it is an investment in reliability, continuity, and trust. And it is what allows us to say, with pride, that at Agresa, energy never stops.
Do You Want to Ensure the Reliable Operation of Your Generator?
Contact us and we will advise you on the maintenance plan that best suits your equipment.
👉 Contact Agresa