What a service visit covers
-
01Oil and filters
Fresh oil, a new oil filter and a clean or new air filter. In the valley, the air filter is the item we find in the worst shape.
-
02Battery and plugs
A load test on the starter battery, terminals cleaned and tightened, spark plugs checked or replaced.
-
03Air, vents and fuel
Intake and enclosure vents cleared of dust and debris, the gas connection checked, and the area around the unit looked over.
Then we run the generator under load through the transfer switch, so we know it can carry the house, not just idle. You get a short written note of what we did and anything that needs watching.
Why desert units need more attention
Heat and dust are the two things that age a generator here. Generac's owner's manual for one of its portable models says to change the oil every month when it runs under heavy load or in high temperatures, and to clean the air filter more often in dirty or dusty conditions. Standby units have their own schedules, but the same physics apply: an engine breathing hot, dusty air needs cleaner oil and a cleaner filter.
A clogged filter beside a new oneBatteries also suffer in the heat, and a standby unit's battery is what has to crank the engine at the moment the power drops. We test it every visit instead of waiting for it to fail.
Monsoon storms bring their own problems: blowing dust packs vents, and wind can pile debris against the enclosure. A quick check after a big storm is cheap compared to a unit that overheats during the next outage.
Plan or one-time visit
Some owners want one service call before summer. Others want us to keep the schedule for them. Either works. On a plan, we track the dates, call you when service is due and keep a record of every visit for the unit.
Maintenance visit
$171to$396
Per visit; national average $274
Angi · updated Sep 2026 · national
That range is from Angi's generator maintenance cost guide. Larger units and liquid-cooled models sit at the upper end.
