Generator Maintenance & Service
Maintain and service backup generators for ongoing reliability
Overview
Generator service companies charge $200-$500 per annual maintenance or $50-$150 per service call.
Maintaining 500-2,000 generators generates $200,000-$1,000,000 annually with 60-80% margins.
In 2025, generator owners need maintenance for reliability.
Services include annual generator maintenance ($200-$400 for residential, $400-$1,500 for commercial), load testing ($150-$400), repair services ($100-$300 per hour), battery replacement ($200-$600), fuel system service, and emergency service calls ($150-$400).
Successful services build recurring maintenance contracts, respond quickly to service calls, maintain multiple generator brands, prevent breakdowns through preventive maintenance, and provide 24/7 emergency service.
Generator owners as clients.
Marketing through generator installers, partnerships with manufacturers, commercial property managers, critical facilities, and direct marketing.
Required Skills
- Generator Repair
- Small Engine Mechanics
- Electrical Systems
- Diagnostics
- Customer Service
- Multi-Brand Knowledge
Pros and Cons
Pros
- Recurring annual maintenance contracts
- Growing installed generator base
- Lower startup costs than installation
- Service work year-round
- Critical service customers pay for
Cons
- Need generator repair expertise
- Emergency calls disrupt schedules
- Parts inventory investment
- Competitive service market
- Seasonal demand spikes
How to Get Started
- Build generator service expertise
- Get manufacturer service certifications
- Invest in service vehicles and tools
- Partner with generator installers for referrals
- Market to generator owners
- Build recurring maintenance contract base
- Provide reliable service and emergency response
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