A generator mechanic handles routine maintenance (oil changes, filter replacement, spark plug checks) and emergency repairs for your household generator. In Lagos, where generators run 6-12 hours daily, regular maintenance is critical — a poorly maintained generator consumes 20-30% more fuel and breaks down frequently.
•Technical knowledge of generator types (Lutian, Sumec Firman, Honda, etc.)
•Experience with both petrol and diesel generators
•Tools and equipment (own toolkit preferred)
•Availability for emergency calls
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Lagos.Cool Editorial
28 July 2026 · 2 min read
Lagos.Cool Editorial
Generator maintenance is a hidden ₦120,000-₦420,000 annual cost that Lagos.cool's power calculator doesn't yet capture. A generator running 6 hours/day needs an oil change every 3-4 weeks (₦5,000-₦8,000), spark plug replacement quarterly (₦3,000-₦5,000), and a full service every 6 months (₦15,000-₦25,000). These costs add ₦10,000-₦35,000/month to the ₦285,000 fuel cost — making the true generator cost ₦295,000-₦320,000/month. This data feeds directly into the cost of living calculator.
Because so much of Lagos runs on generators, a good generator mechanic is one of the more valuable contacts a household or business can have. They service and repair the small petrol sets and the bigger diesel units alike — oil and filter changes, carburettor and fuel-system work, changeover and wiring faults, and the general upkeep that keeps a gen reliable rather than a liability. The two models are the one-off call-out for a fault and the routine service contract for regular maintenance, and for anyone depending on their gen daily, the contract is usually the smarter buy. Choose on reliability and honesty over the lowest quote — a mechanic who cuts corners or overcharges for parts on a generator you cannot do without is an expensive kind of cheap.
⏰ A day in the life
Per-visit work, not daily. A typical service call: arrive, check fuel level, change oil, replace filter if needed, check spark plugs, start the generator and listen for abnormal sounds, log the service. Total time: 45-90 minutes per visit. Most mechanics service 4-8 generators per day across estates.
🤔 Should you hire one?
✓ Hire if:
✓Generator running 6+ hours daily
✓Generator older than 3 years
✓You don't have time for monthly servicing
✓Estate doesn't include shared maintenance
✗ Skip if:
✗Generator under warranty with manufacturer service
✗You're handy with engines and have time
✗Generator runs less than 2 hours/day
✗You're on Band A power (rarely use generator)
💡 Hiring tips
1Find a mechanic who services your specific generator brand
2Schedule routine maintenance every 200-250 running hours (roughly monthly for a 6hr/day gen)
3Keep records of all maintenance — dates, oil changes, parts replaced
4A monthly retainer (₦10K-₦15K) is cheaper than per-visit emergency fees (₦15K-₦30K)
5Get quotes from 2-3 mechanics before committing
🚩 Red flags to watch for
✗Recommending unnecessary parts replacement (upselling)
✗Using substandard oil or parts
✗Taking working parts and replacing with used ones
✗Frequent emergency calls to justify visit fees
✓ Pros
✓Extends generator lifespan (properly maintained gen lasts 10-15 years)
✓Reduces fuel consumption by 20-30%
✓Prevents costly emergency breakdowns
✓Monthly retainer is predictable budgeting
✗ Cons
✗Per-visit pricing can add up if generator is old
✗Risk of unnecessary repairs to justify fees
✗Quality varies — some mechanics cause more problems than they fix