
Renting a diesel generator in Columbus in 2025 typically costs between $150–$300 per day, $600–$1,200 per week, and $1,800–$3,600 per month. These rates vary based on the generator's power capacity and additional features. Leading rental companies in Columbus provide a wide range of options suitable for different project sizes and requirements.
| Vendor | Daily Rate | Weekly Rate | Review Score | Website |
|---|---|---|---|---|
| Sunbelt Rentals | $180–$350 | ≈$540–$1 050 | 8 | Visit |
| United Rentals | $300–$800+ | ≈$900–$2 400+ | 7 | Visit |
| Herc Rentals | $300–$800+ | ≈$900–$2 400+ | 8 | Visit |
| Midwest Event Partners | $275 | ≈$825 | 7 | Visit |
Several factors affect the rental costs of diesel generators, including the generator's power output, duration of hire, and any additional services such as delivery and setup. Larger generators with higher power outputs generally command higher rental fees.
When renting a diesel generator, be aware of potential hidden fees. These can include delivery and pick-up charges, which may be flat-rate or mileage-based, fuel surcharges, and cleaning fees for equipment returned in poor condition. Additionally, consider the cost of damage waivers versus full insurance coverage, as well as penalties for late returns or overtime usage.

The demand for portable diesel generators in Columbus is expected to remain strong in 2025, driven by construction projects and emergency power needs. Rental companies are expanding their fleets to include more fuel-efficient and environmentally friendly models.
Ensure compliance with local regulations when renting diesel generators. This includes adhering to noise ordinances and emissions standards. Rental companies often provide guidance on these requirements to help you avoid potential fines.