Generators for Rent in Ajax, ON

United Rentals has an extensive inventory of generator rentals in Ajax, ON that are perfect for providing temporary power in healthcare, data center and construction industries.

Popular generators near Ajax

Generators

Need a generator in the Ajax area?

United Rentals has a variety of generators for rent that are perfect for temporarily powering equipment and tools or supplying power during outages. We carry diesel generators, portable gas generators and hybrid generator rentals with outputs ranging from 2,000 watts to 2,000 kilowatts to meet your project's specific needs. Our inventory includes both portable generators and towable generators so you can easily transport them to where you need power. Our generators are sourced from trusted brands like Honda, Generac, Multiquip and more.

Browse our generator rentals online or contact your local Ajax branch for more information about our offerings.

Rent from a United Rentals branch near Ajax

Areas We Serve Near Ajax, ON

With a vast network of locations within the Ajax area, United Rentals offers extensive support wherever your next project takes you.

  • Ajax, ON
  • Toronto, ON
  • Markham, ON
  • Mississauga, ON
  • Brampton, ON
  • Oshawa, ON
  • Richmond Hill, ON
  • Whitby, ON
  • Vaughan, ON
  • Pickering, ON
  • Hamilton, ON
  • Newmarket, ON
  • Oakville, ON
  • Aurora, ON
  • Burlington, ON

How to Choose the Right Generator

Total Power Requirements

  • Add up the wattage or amperage for everything you need to run, including motor starting surges, and translate that into the kW or kVA size you need for a generator rental
  • Undersized generators can trip overloads or fail to start high-inrush equipment like compressors and pumps
  • Include startup surge loads in your total, not just running wattage, to avoid nuisance shutdowns

Run Time & Fuel Type

  • Decide how long you need continuous power and whether your site allows for refueling or requires an extended-run fuel tank
  • Diesel generators offer longer run times and durability for extended jobsite use, while portable gas generators are better suited for shorter-term or lighter-duty needs
  • Plan your fuel strategy around run times and refueling logistics, especially for remote sites or 24/7 operation

Site Conditions & Distribution

  • Confirm the generator can sit on level, stable ground with adequate ventilation and clearance from structures
  • If loads are spread across the site, plan for distribution equipment like cables, power distribution panels and transfer switches to reach every load safely
  • Consider noise ordinances and placement near occupied areas so the generator doesn't disrupt work or nearby residents

Generator Rental Resources

Need help choosing the right generator?

Generator Rental FAQs

United Rentals is a top construction equipment rental provider across the Ajax area, offering a comprehensive inventory of tools and machinery. Whether your project requires towable diesel generators, industrial hybrid generators or portable gas generators, our conveniently located branches around the Ajax area have you covered. Our dedicated team of customer service representatives and power generation specialists are committed to maximizing your uptime and ensuring project success.

Learn more about Ajax's generator offerings in our FAQ section below.

How long can I expect a generator to run?

How long a generator can run depends on the fuel type and size of the fuel tank. Our diesel generators can run anywhere from 8 to 72 hours on a full tank, while our portable gas generators can run 6 to 12 hours. Our hybrid generators can run up to 100 hours on one tank of fuel. As long as a generator is refilled with the necessary fuel, it can run for days at a time.

How much fuel does a generator use?

How much fuel a generator uses varies depending on the generator size and load. The average 10-kilowatt generator will consume a little under a gallon of fuel an hour at full load, while a heavy-duty 200-kilowatt generator will likely consume up to 15 gallons of fuel per hour. Consult a United Rentals representative at your local Ajax branch for more information about your generator rental.

What size generator do I need?

To determine what size generator to rent, calculate the total wattage you need. Combine the running wattage from all the appliances you need to power, then add the starting watts from the appliance with the highest starting wattage. For example, an air conditioner may require 1,500 watts to run continuously, but it requires an additional 2,000 watts to start, so the total wattage needed for your generator would be 3,500 watts. Ask a representative at your local Ajax branch for help determining which generator you need.

Explore other popular equipment rentals in the Ajax area

Air Conditioners

Temporarily cool events, construction sites, businesses and more in Ajax with industrial and portable air conditioners from United Rentals.

Boom Lifts

Access elevated areas at construction, maintenance or electrical jobsites in Ajax with United Rentals' extensive inventory of boom lift rentals.

Dehumidifiers

Rent portable or industrial dehumidifers to remove excess moisture and improve air quality at construction sites, warehouses, businesses and more in Ajax.

Excavators

Rent excavators for heavy-duty digging, backfilling, clearing and trenching work at your next construction or road improvement project in Ajax.

Forklifts

Move and lift heavy materials for your next construction, manufacturing or warehouse project in Ajax with our large inventory of forklift rentals.

Heaters

Keep your indoor or outdoor manufacturing facility, commercial building or event space warm with our large inventory of heater rentals in Ajax.

Scissor Lifts

Access hard-to-reach areas at indoor or outdoor construction sites in Ajax with our inventory of electic and rough terrain scissor lifts.

Skid Steers

Rent a skid steer from United Rentals for medium-duty digging, grading and trenching work in construction projects in Ajax.

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