Generators
Keep industrial and commercial operations running without interruption, or maintain dependable power on the jobsite with generator and generator accessory rentals from Sunbelt Rentals. Our experts will guide you in choosing the right size and type of generator to match your specific application.
Generator Rentals
One Call Rentals offers the best Generators in Denver, Colorado. Renting, picking up, and returning equipment has never been easier than with One Call Rentals. Book now to lock in your rental, create an account to monitor and make changes to your booking, and pay online.
Your Trusted Partner for Generator Rentals in Denver
When you need dependable power, rent a generator from One Call Rentals. Our reliable generator rental services keep construction sites, events, and emergency operations running smoothly, even where grid power isn’t available.
Renting a generator is the smarter, more flexible choice for your business. You get immediate access to the right unit for your project without the heavy upfront cost of ownership or long-term maintenance. From small portable generators to large industrial power systems, we deliver safe, efficient, and fully serviced equipment right when you need it.
Explore Our Generator Rentals
Why Choose One Call Rentals?
Whether you’re managing a construction project, powering a festival, or responding to an emergency, One Call Rentals makes it simple to stay connected. Our generator rental services in Denver are designed to keep your site operational, safe, and compliant.
Here’s what sets us apart:
- Cost control: Renting eliminates large capital outlays and depreciation. Pay only for what you use, when you need it.
- Flexibility: Choose a generator sized for your specific power needs, and scale up or down as projects change.
- Maintenance included: Every rental generator is fully serviced and inspected before delivery, saving you time and hassle.
- Fast emergency response: Our Denver-area team offers 24/7 support and quick delivery during power outages or critical operations.
- Modern technology: Access the latest fuel-efficient, low-emission generator models for reliable and eco-friendly performance.
With One Call Rentals, you get a partner who keeps your operations powered up, minimizing downtime, improving efficiency, and ensuring your project runs without interruption.


Smart, Scalable Power Solutions
We understand that no two projects are alike. That’s why our generator rental options cover every scale and scenario, from portable generators for temporary setups to industrial systems for large-scale sites.
- Towable Generators: Ideal for remote locations and job sites on the move.
- Portable Generators: Compact and convenient power for tools, lighting, and smaller setups.
- Standby Units: Reliable backup systems for continuous operations and emergency preparedness.
Distribution Panels & Cables: Complete, ready-to-deploy packages for safe and efficient power distribution.
Call or Request a Quote Today
Need temporary or emergency power? Rent a generator in Denver with One Call Rentals. Contact our team today for a customized quote and experience why we’re one of the most trusted names in generator rental companies across Colorado.
Frequently Asked Questions
Why should I rent a generator instead of buying one?
Renting is the smarter choice for businesses that want flexibility, lower costs, and zero maintenance headaches. Purchasing a generator means a large upfront cost, ongoing servicing, and storage between uses. By working with generator rental companies like One Call, you only pay for what you need, when you need it, and always get a clean, fully serviced, fuel-efficient unit. Plus, you can easily upgrade or downsize as projects change without committing to ownership.
How fast can I get a generator rental in Denver?
We know downtime can be costly. That’s why our generator rental Denver service includes same-day or next-day delivery across most areas. During emergencies or power outages, our 24/7 response team is on standby to dispatch a generator immediately. We deliver, install, and test every unit to make sure your power is up and running safely and quickly.
Are your generators maintained and ready to use on delivery?
Absolutely. Every generator in our rental fleet is fully inspected, serviced, and tested before leaving our facility. We check oil levels, fuel efficiency, battery health, and load performance to ensure safe and reliable operation. Our commitment to maintenance is what makes us one of the most trusted generator rental companies in Denver. Your equipment will always arrive clean, compliant, and ready to perform.
What happens if my rental generator stops working?
If an issue ever occurs, you won’t be left in the dark. One Call Rentals provides fast technical support and on-site service. Our technicians will troubleshoot, repair, or replace your generator as quickly as possible to keep your operations running. That’s the advantage of partnering with a dependable generator rental company.
Can I rent a generator for both short-term and long-term projects?
Yes. We offer flexible rental options for both short-term needs such as weekend events or emergency outages, and long-term use for construction projects or industrial facilities. Our long-term clients appreciate predictable costs, priority servicing, and flexible contract terms. Whatever your schedule, our generator rental team in Denver will customize a plan that fits your project perfectly.
Do you provide cables, panels, and accessories with the generator?
Yes. When you rent a generator from One Call Rentals, you get a complete power solution. We supply all necessary cables, transformers, and distribution panels to ensure safe, compliant, and efficient setup. Our technicians handle delivery, connection, and load testing so you can focus entirely on your work, not your power supply.
Are your generators suitable for quiet or emission-sensitive areas?
Definitely. We stock a range of modern, low-noise, and low-emission generators that meet Denver’s strict environmental and sound regulations. These are ideal for events, film productions, and urban job sites where noise control matters. Renting a newer, cleaner unit not only ensures compliance but also reduces fuel costs and your environmental footprint.
Can I rent multiple generators for a large site or event?
Of course. For large operations, we provide multi-generator packages with synchronized load balancing and full distribution setup. Whether you need redundant backup systems, phased power delivery, or coverage for separate event zones, our generator rental services scale to your needs. Our technical team can handle planning, delivery, and installation for seamless performance across your entire site.
How do I request a quote for a generator rental in Denver?
Getting a quote is simple. Call us directly or submit a quick request on our website. Our Denver-based support team will provide transparent pricing, equipment recommendations, and delivery timelines tailored to your project. We believe in honest, upfront communication.












