
Generators
Commercial Generator Maintenance & Repair in Miami
Zaldak Maintenance inspects, load-tests, maintains and repairs standby generators for condos, office buildings, medical offices and retail across Miami-Dade and South Broward, with work performed by appropriately licensed technicians as Florida and Miami-Dade require, and coordinates new generator installations.
A generator you haven't tested is a guess
In South Florida, standby power is not optional for many buildings. Elevators, fire pumps, emergency lighting, sump pumps, refrigeration and IT all depend on a generator starting when the grid goes down, usually in the middle of a storm, after it has sat idle for months.
Generators that fail during an outage usually fail for ordinary reasons: a weak battery, stale or contaminated fuel, a coolant leak, a transfer switch that never moved, or an engine that only ever ran without load. Scheduled exercise, inspection and load testing find those problems while there is still time to fix them.
What maintenance includes
- Scheduled inspections: batteries, charger, belts, hoses, coolant and oil
- Fuel checks, including condition of stored diesel and fuel system leaks
- Load testing and load bank testing to verify the unit carries real load
- Automatic transfer switch (ATS) inspection and operational testing
- Filter, fluid and battery replacement on schedule
- Troubleshooting and repair of start failures, alarms and shutdowns
- Logs and reports for boards, insurers and inspectors
Who relies on it
Condo associations with elevators, fire pumps and life-safety loads; medical and dental offices protecting equipment and refrigerated supplies; office buildings with server rooms; retail and restaurants with refrigeration that can't be lost. Generators serving life-safety loads are typically subject to recognised testing standards and local fire-code schedules, and the documentation matters as much as the test.
Hurricane readiness
Before and during hurricane season (June 1 to November 30), we run a readiness check: full inspection, fuel level and quality, battery test, transfer switch test and a run under load. When a storm is forecast, plan members are scheduled first for top-off coordination and last-minute checks.
Generator work fits into a maintenance plan alongside electrical, HVAC and life-safety checks, so the whole building is ready for the season under one schedule.
Installation and outages
For new or replacement generators we assess the loads you need to back up, coordinate sizing, permits and the transfer switch, and manage the project through start-up. If a generator fails to start or shuts down during an outage, call our 24/7 line; dispatch sends a technician as fast as storm conditions allow (typical response is about two hours in normal conditions).
Included
What you get
- Work by appropriately licensed technicians
- Scheduled inspections and load tests
- Transfer switch testing
- Pre-hurricane readiness checks
- Logs ready for boards and inspectors
- Priority storm scheduling for plan members
FAQ
Questions we get asked
How often should a commercial generator be serviced?
Most commercial standby generators should be exercised regularly (often weekly or monthly), inspected at least quarterly and serviced with fluids and filters at least once a year. Generators serving life-safety loads typically follow stricter testing schedules set by fire codes and the authority having jurisdiction.
What is a load bank test and do I need one?
A load bank test runs the generator against an artificial electrical load to prove it can carry its rated output. It's recommended when the building's normal load is too light to test the generator properly, and it helps prevent 'wet stacking' in diesel engines that only run lightly loaded.
Why do generators fail during hurricanes?
Most failures come from dead batteries, bad or insufficient fuel, cooling problems, or a transfer switch that doesn't operate. All of these can be found with a pre-season inspection and a test under load.
Do condos in Florida need a generator?
Many condo buildings need emergency power for elevators, fire pumps and life-safety systems, and requirements depend on the building's height, age and the codes it was permitted under. Your engineer or local building and fire officials determine what applies; we maintain and test the equipment you have.
Can you install a new commercial generator?
Yes, we coordinate new and replacement generator installations, including load assessment, sizing, transfer switch, permits as required and start-up, with work performed by appropriately licensed trades.

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