Riverside · Generator Services
Perris Generator Rentals
Towable diesel rentals for Perris job sites, warehouse fit-outs and lake events, plus standby installs and repairs.

Perris · Generator Services
Job Sites, Warehouse Fit-Outs And Lake Perris
Perris runs on construction. The warehouse corridor along Harley Knox, Ramona Expressway and Rider Street has been building continuously for years, and most of those sites need temporary power long before the permanent service is energized. A towable diesel unit with a distribution panel and a scheduled fuel drop is what keeps a fit-out crew working through that gap.
Sizing a rental for a job site is a different exercise to sizing a standby unit for a house. The load is welders, compressors, lifts, lighting towers and a site trailer, all of it intermittent and some of it with a heavy start. Undersizing produces nuisance trips that cost more in lost crew time than the bigger unit would have cost in rent, so we ask what is actually plugging in rather than quoting off the square footage of the building.
Fuel is the part that separates a good rental from a bad one. A 60kW unit at half load burns through a base tank in a couple of days, and a site that runs dry on a Thursday afternoon loses the rest of the day. We put every long-term generator rental on a scheduled delivery and monitor the level rather than waiting for a phone call.
Events around Lake Perris and the fairgrounds are the other half of the local rental business. Those need quiet units, clean power for sound and lighting, and placement far enough away that the generator is not part of the soundtrack. Super-silent enclosures and a longer cable run solve almost all of it.
On the permanent side, the finished distribution centers come back to us for industrial generators and for the annual load bank testing their insurers and their AQMD permits require. Fit-out to standby power is a natural progression, and knowing the building from the temporary phase makes the permanent install faster.

What We Install And Rent In Perris
The full range of generator work we do in Perris and across the Inland Empire.
Whole House Generator
Permanently installed home standby units that start themselves when the power drops and carry the whole house, or the parts of it you choose.
Backup Generators
Standby power sized to the circuits you actually need, from essential-load systems to portable units, installed and supported locally.
Industrial Generators
Large diesel standby and prime power for warehouses, manufacturing, cold storage and logistics, from load study to AQMD permit to annual load bank test.
Commercial Generators
Standby systems for offices, clinics, restaurants, shops and light industrial buildings, sized to the equipment that cannot stop.
Generator Repair
Diagnostics, repair and scheduled maintenance on every major brand, from a home standby unit that will not start to a diesel that has not been load tested in years.
Generator Rental
Portable and towable units by the day, week or month for construction, events, weddings and covering a building while its own system is down.
The crew that covers Perris works out of the same Riverside yard as the rest of Riverside generator installation, so the sizing, the permitting and the service schedule are identical here to anywhere else in the valley. Call: (951) 540-3536
Frequently Asked Questions
What size generator does a house need?
It depends on what you want running at once rather than on the square footage. A typical Riverside home with one air conditioning system and normal appliances is comfortable on 18kW to 22kW. Two air conditioning systems, a pool, a well or an EV charger usually needs 24kW to 26kW. Very large homes move to liquid-cooled units from 32kW upward. If you only want essentials, 10kW to 14kW often covers a refrigerator, internet, lighting and one cooling zone. We size from a load calculation at the panel, using the worst realistic case, which here is a 105-degree afternoon with both compressors starting together.
What brands do you install and service?
We install Generac, Kohler, Cummins and Champion. We service those plus Caterpillar, Briggs and Stratton, Onan, Detroit and MTU, including equipment installed by companies that no longer exist. Generac has the widest range and the best parts availability locally, Kohler tends to be quieter in several size classes, Cummins is the workhorse on commercial and large residential jobs, and Champion competes on price for essential-circuit installs. On an inherited machine the first visit is normally a full inspection and a load test.
How much does a whole house generator cost installed?
Most complete residential installations in the Riverside area run between $5,000 and $15,000, covering the generator, the automatic transfer switch, the pad, the gas and electrical work, the permit and commissioning. Essential-circuit systems sit at the low end; large liquid-cooled machines, panel upgrades or long gas runs sit at the top or above it. The equipment is usually about half the total. We quote a fixed price after a site visit, and financing is available with terms from about 12 to 84 months subject to credit.
Does a generator add value to a home?
Industry surveys generally put it at roughly 3 to 5 percent of home value for a properly installed and permitted whole house system. It carries more weight in areas that actually lose power: the Corona canyons, north Rancho Cucamonga, the Redlands and Yucaipa foothills and the Verdemont side of San Bernardino all sit in fire-season shutoff territory, and buyers there have lived through multi-day outages themselves. The permit matters for this, since an unpermitted install is a problem during escrow rather than a feature.
What is the difference between a portable and a standby generator?
A portable is movable, cheaper, started by hand and fuelled by hand, and connects with cords or through an inlet box. A standby unit is permanently installed, permanently connected to natural gas or propane, wired to an automatic transfer switch and starts itself within seconds whether or not anybody is home. It also tests itself weekly. For a short blip a portable is fine. For a multi-day fire-season shutoff, standby is the only one people are still happy with on day three. Never run a portable in a garage or near an open window.
How loud is a generator?
Residential standby units in modern enclosures run around 60 to 70 decibels at the distance manufacturers quote, which is between a normal conversation and a vacuum cleaner in the next room, and typically no louder than the air conditioner sitting beside it. Larger commercial and diesel units are louder, with sound-attenuated enclosures available where it matters. Most neighbours only ever hear the weekly exercise cycle, which is why we schedule that for the middle of a weekday rather than early morning.
Do I need a permit to install a generator?
Yes. A permanently installed generator needs electrical and mechanical permits and an inspection, and the gas connection is inspected too. In the City of Riverside that goes through Building and Safety; each surrounding city runs its own process. Stationary diesel engines above a threshold size also need a South Coast AQMD permit to construct and to operate, with emergency standby engines limited to a set number of testing hours a year. We file all of it and hand over the signed-off paperwork.
How long can a generator run during an outage?
On natural gas, as long as the outage lasts, since the fuel keeps arriving by pipe. On propane, it is a tank question: a 500-gallon tank at around half load will typically carry a home standby unit for several days. On diesel, it is a base tank question, commonly 24 to 48 hours on smaller standby units before a delivery is needed, and as long as you design for on larger commercial sets with bulk storage. We size fuel storage around the outage you are actually preparing for, which in this area means multi-day rather than multi-hour.
How often does a generator need servicing?
One professional service a year for a home unit, or every 100 to 200 running hours if it works harder than that. Commercial and industrial sets run quarterly or semi-annual inspections with an annual full service, plus annual load bank testing where insurers or code require it. A service visit covers oil and filters, air filter, plugs on gas engines, battery load test, coolant, controller check and a transfer test under load. Dead batteries cause more failures than every mechanical fault combined, and they are the cheapest part on the machine.
Can you rent a generator instead of buying one?
Yes, and for a defined project it is almost always the right answer. We rent portable units, towable diesel sets from 20kW to 200kW and larger industrial machines, by the day, the week or the month, delivered and set up. That covers construction sites without permanent power, weddings and events, warehouse fit-outs, planned utility work and covering a building while its own system is repaired. If you find yourself renting for a second fire season, ask us to price a permanent installation alongside it, because by then the arithmetic has usually changed.
Will a generator run my air conditioning?
Yes, with the caveat that the compressor start is what sets the size. An air conditioner draws several times its running current for the first second or two, and that surge is what the generator has to absorb. One five-ton system is comfortable on a 22kW unit; two systems starting together usually want 24kW to 26kW, or a load management module that staggers them. A soft-start kit on the condenser cuts the surge substantially and can save a whole size step on the generator, which normally pays for itself several times over.
Do you work on generators you did not install?
Yes, and it is a large share of what we do. Between county and city facilities, medical buildings, industrial sites along the 215 and decades of residential installs, San Bernardino and Riverside have a lot of equipment whose original installer is long gone. We take those on, and the first visit is normally a full inspection and a load test rather than a quick look, because until a machine has carried real load nobody can honestly say what condition it is in.
Need a generator in Riverside?
Tell us what has to keep running and where it is, and we will come back the same day with a free estimate and a fixed price.
Or call us now: (951) 540-3536