San Francisco · Generator Installation & Repair
Generator Rentals
Towable and skid-mounted units from 20kW to 500kW for construction, events, film and emergency cover, delivered, connected and collected.
Generator Rentals · San Francisco
Temporary Power, Delivered And Connected
A generator rental covers the jobs where owning a machine makes no sense: a construction site with no permanent service yet, a wedding on a bluff with one weak outlet, a film unit shooting overnight, a building whose own set has failed, or a planned utility shutdown that would otherwise close a business for a day. We rent towable trailer generators and skid-mounted units from about 20kW to 500kW, diesel and natural gas, standard and super-quiet, and we deliver them, cable them in, test them under load and collect them at the end rather than dropping equipment at a curb. Rates run daily, weekly and monthly, and the monthly rate is dramatically cheaper per day, which matters on construction generator rental where the job always runs longer than planned. The two questions we ask first are what you are actually running and how loud you can afford to be, because those decide the machine. Where a rental turns into a recurring cost, the honest comparison is against a permanent commercial generator, and we will run that arithmetic with you.
Why Rent From Us
Most rental complaints come down to two things: the machine was the wrong size, and nobody connected it. Equipment yards rent by the unit and leave the sizing to you, so an event ends up with a set that browns out when the kitchen and the lighting come on together, or a site pays for a 250kW machine to run 40kW of load and burns fuel and money doing it. We size from what you are running, including starting loads on motors and lifts, we bring the distribution and the cable, and our crew makes the connection and load-tests it before leaving. On events we deliver and test the day before rather than on the morning, because an hour of margin on delivery day is worth more than anything else we could sell you. And because we service generators for a living, our rental fleet is maintained by the same people who fix other companies’ machines.
- Sized from your actual running and starting load, not from what happens to be free in the yard.
- Delivered, positioned, cabled in, load-tested and collected — not dropped at the gate.
- Diesel and natural gas, standard and super-quiet units for residential blocks and live sound.
- Distribution, spider boxes and cable supplied with the machine rather than sourced separately.
- Fuel delivery and 24/7 remote monitoring on longer rentals so nobody runs a site dry.
- Day, weekend, weekly and monthly rates, with monthly far cheaper per day on long jobs.
Reasons To Rent A Generator
The situations that put a rental machine on a site:
Construction with no permanent service yet
Ground-up work, a lot that has been cleared, a site waiting on a utility connection that is months out. Construction generators run the tools, the lifts, the site office and the temporary lighting, and they usually stay longer than the schedule says, which is why the monthly rate matters more than the daily one.
An event with more load than the venue has power
Parks, piers, bluffs, private estates and vineyards all run out of power quickly once catering, lighting and sound arrive. Event generators and wedding generators are almost always about noise as much as capacity: the machine has to disappear behind the music, which means a super-quiet unit sited and screened properly.
A planned utility shutdown
PG&E work, a service upgrade, a switchgear replacement or a scheduled maintenance outage. A rental parked for the day keeps a restaurant trading or a clinic open, and it costs a fraction of the revenue that closing would lose.
Your own generator has failed
A rental bridges the gap between a failed set and a repaired or replaced one, and it is the standard way to handle it. We will cable a temporary machine into your existing gear so the building stays live while the permanent repair is done properly rather than in a hurry.
Film, television and photography
Production needs clean, quiet, reliable power at odd hours in places with none, and it needs the machine to be inaudible on a boom mic. Super-quiet trailer generators with the right distribution are the standard answer, and productions in this city book them constantly.
Seasonal or occasional demand
A business whose peak load only appears a few weeks a year, a market, a fairground, a disaster-response staging area. Renting for the weeks you need it is straightforwardly cheaper than owning a machine that sits for eleven months.
Give us the load, the dates and the address, and we will size the unit and quote a flat rate the same day. Call: (415) 818-1837
How A Rental Works
Sized on the call, delivered before you need it, connected by us.
1. Load calculation
Tell us what is being run — tools, lifts, kitchen, lighting, sound, refrigeration, a server rack — and we work out running kW and starting kW and pick a unit with sensible margin. Over-specifying wastes fuel and money; under-specifying browns out the lighting when the compressor kicks in.
2. Delivery and placement
Flatbed or tow delivery anywhere in the metro. We place the machine where the exhaust and the noise work for the site rather than where the truck stopped, and on events that means thinking about sightlines and the sound desk as well as access.
3. Connection and load test
Our crew lands the leads, ties the grounds, sets up distribution and runs it under load before leaving. On event work we do this the day before wherever the venue allows, because problems are fixable on Friday and not at 4pm on Saturday.
4. Fuel, monitoring and collection
Scheduled fuel delivery on longer rentals with remote monitoring of fuel level and faults, so we dispatch before you run dry rather than after. At the end you call and the machine goes, with the ground left as we found it.
Sizes, Fuel Policy, Noise And What Each Job Needs
The practical detail behind a rental quote:
Size tiers and what they cover
Roughly: 20kW to 45kW covers a small site, a food operation or a modest event; 60kW to 125kW covers a full construction site, a large wedding or a small building; 150kW to 300kW covers major construction, a whole commercial building or a festival stage; 400kW to 500kW and paralleled sets cover industrial and large-venue work. Most jobs land lower than the customer first guesses.
Construction generator rental
Priced monthly, because sites always overrun. What matters is starting current on lifts, pumps and compressors, distribution around a site that changes shape weekly, and a fuel plan that does not depend on somebody remembering. Tier 4 Final certified units are required on many public works and air-quality-restricted sites, and we supply them as standard.
Event and wedding generator rental
Noise is the whole game. A standard construction unit ruins a ceremony from fifty feet away; a super-quiet event generator at the same output disappears behind conversation. We site it downwind and out of sight, run cable properly rather than across a walkway, and deliver early enough that a problem is still a problem and not a disaster.
Industrial and commercial generator rental
Bridging a failed set, covering a switchgear upgrade, or carrying a facility through a planned shutdown. These come with cabling into existing gear, a proper transfer plan, and testing before the changeover. On critical sites we like the rental proven on site a day early.
Fuel policy on a rental
Machines arrive full. On short rentals you return them full or we refuel and bill it at cost plus a delivery charge, which is the industry norm and is on the agreement rather than buried in it. On longer rentals we schedule fuel delivery and monitor the tank remotely so the site does not stop. Natural gas units on a site with a live main sidestep the whole issue.
Diesel or natural gas on a rental
Diesel for mobility, for remote sites and for hard starting loads — it is what most trailer generators are. Natural gas where there is a main available and the rental is long, because fuel cost drops and nobody has to schedule deliveries. For a month-long job next to a live gas service, gas is frequently the cheaper answer overall.
Distribution, cable and spider boxes
A generator with no distribution is half a solution. We supply cable, spider boxes, panels and adapters sized to the machine and the site, and we run them so nothing crosses a walkway ungrounded or unprotected. This is the part rental yards leave to the customer and it is where sites get hurt.
When renting stops making sense
If a machine has lived on your site for eight months, or you rent every year for the same seasonal peak, the numbers have probably crossed over. We will run the comparison against a permanent commercial generator or, at larger scale, industrial generators, and tell you which side of the line you are on.
What A Generator Rental Costs
Rentals are a flat rate by size tier and duration, plus fuel. Roughly, in this market: a 20kW to 45kW unit is a few hundred dollars a day or around a thousand a month; a 60kW to 125kW unit is mid-hundreds daily and low thousands monthly; 150kW and above is quoted per job. What moves it:
- Size tier. Right-sized is cheapest — an over-specified machine costs more to rent and burns more fuel doing less.
- Duration. Daily, weekend, weekly and monthly are different rates, and monthly works out far cheaper per day. The crossover is at roughly a week.
- How quiet it needs to be. Super-quiet event and film units cost more than standard construction sets at the same output, and on a wedding that difference is the entire point.
- Fuel. Diesel is billed on the tank you use; a natural gas unit on a live main removes the fuel line from the invoice entirely.
- Distribution. Cable, spider boxes and panels are quoted with the machine, and a site that changes weekly needs more of them than one that does not.
- Delivery and timing. Inside the metro is included; long hauls, weekend and holiday deliveries and same-day emergency drops carry a premium because they sit outside the schedule.
You get one flat quote covering delivery, connection, load testing and collection, with fuel handled on the terms agreed at the start. If a rental is going to become permanent, we will show you where the crossover to a commercial standby install sits, and everything else we do is listed under generator sales, service and rental.
Frequently Asked Questions
How much does it cost to rent a generator?
It is priced by size tier and duration. A 20kW to 45kW unit runs a few hundred dollars a day or around a thousand a month; a 60kW to 125kW unit is mid-hundreds daily and low thousands monthly; anything from 150kW up is quoted per job. Monthly is dramatically cheaper per day than daily, and the crossover is at about a week, so tell us the real duration rather than the optimistic one.
What size generator do I need to rent?
It depends on running load and starting load, and starting load is what catches people out — motors, compressors and lifts draw several times their running current for a moment. Give us a list of what will be plugged in and we will size it. Most jobs come out smaller than the customer expected, and an over-specified machine costs more to rent and burns more fuel.
What kinds of jobs need a generator rental?
Construction sites with no permanent service, weddings and events at venues without enough power, film and photography shoots, planned utility shutdowns, buildings whose own generator has failed, seasonal peaks, markets and fairgrounds, and emergency staging. If it is temporary, or it only happens a few times a year, renting almost always beats owning.
How does the fuel policy work?
Machines are delivered full. On short rentals you return it full, or we refuel and bill the fuel at cost plus a delivery charge — it is written on the agreement rather than hidden in it. On rentals of a month or more we schedule deliveries and monitor the tank level remotely, so we top it up before the site stops rather than after.
Will the generator be quiet enough for a wedding?
If it is the right machine, yes. A standard construction unit is audible and unpleasant from fifty feet; a super-quiet event generator at the same output sits under normal conversation and disappears once music starts. We also site it downwind, out of sightlines, with the cable run properly. Say it is a wedding when you call and we will quote the right class of machine.
Do you deliver, connect and pick up?
Yes, all three, and the connection is the part that matters. We position the unit for exhaust and noise rather than for the convenience of the truck, land the leads, tie the grounds, set up distribution and load-test it before leaving. On events we do all of that the day before wherever the venue allows.
Need a generator in San Francisco?
Tell us the address and what has to stay running, and we will come back the same day with a free estimate and one fixed price.
Or call us now: (415) 818-1837