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Gutters in Ontario carry about 7 inches of rain a year — clogged or loose gutters push water into fascia, siding and foundations.
In San Bernardino County, July highs average about 101°F and January lows about 39°F, with roughly 7 inches of rain a year. That much heat keeps air conditioners running hard for months, so a yearly tune-up pays off.
Over the last 10 years the National Weather Service recorded flash floods, floods and damaging thunderstorm winds in San Bernardino County, with hail up to 1.75 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.
San Bernardino County has had 40 federal disaster declarations in the last 25 years, most often for wildfires; the latest was Bridge Fire (2024).
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Twice a year for most homes — late spring and after the leaves fall — and after big storms.
Under heavy trees, yes; they cut cleanings but still need a yearly check.
Sagging runs, water spilling over the edge, peeling paint or stains on the fascia, and puddles at the foundation.
These are San Bernardino County figures — more about homes in San Bernardino.
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