
Renting a diesel generator in San Jose in 2025 typically costs between $150–$300 per day, $600–$1,200 per week, and $1,800–$3,500 per month. These rates vary based on the generator's power capacity and specific features. Leading rental companies in San Jose provide a wide range of options suitable for various industrial needs.
| Vendor | Daily Rate | Weekly Rate | Review Score | Website |
|---|---|---|---|---|
| Dahl's Equipment Rentals | $135 | $340 | 8 | Visit |
| Hertz Equipment Rental Corp. | $135 | $340 | 7 | Visit |
| All American Rentals | $135 | $340 | 7 | Visit |
| Sunbelt Rentals | $198 | $594 | 8 | Visit |
| AAAA Generator Services Inc. | $425 | $850 | 9 | 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.
When renting a diesel generator, be aware of potential hidden fees. These can include delivery and pick-up charges, which may be flat or mileage-based, fuel surcharges, damage waivers versus full insurance, cleaning fees for excessive dirt or mud, late-return penalties, and overtime usage charges.

The demand for diesel generators in San Jose is expected to grow due to increased construction and industrial activities. This demand may influence rental prices and availability. Staying informed about market trends can help in negotiating better rental terms.
Ensure that the diesel generators you rent comply with local emissions regulations and safety standards. Non-compliance can lead to fines and operational delays.