San Bernardino County, California
Gutter cleaning, repair and new gutters in Rialto, CA
Rain in Rialto adds up to about 10 inches in a normal year, with about 3 days that bring an inch or more. The wettest season is winter (December to February), with about 6.1 inches; the driest is summer (June to August), with 0.1. Every 1,000 square feet of roof sheds about 6,200 gallons a year, and all of it goes through the gutters.
Call (866) 228-6229 free call to a gutter contractor serving RialtoRialto: rain and roofs
NOAA station USC00047473, 11 miBars to one scale; the longest is winter (December to February).
By heavy-rain days, Rialto falls near the middle of the 939 places in California on this site (2.5 a year). Its housing ranks near the middle of the 938 places in California on this site (half built by 1982).
When to clean gutters in Rialto
Frost is rare in Rialto, and in many years there is none (NOAA normals). With no hard freeze to strip the trees, the fall cleaning follows the leaf drop itself; book it once the trees over the roof are bare, and plan a second visit in spring.
When to clean gutters explains how the trees over a roof change the schedule.
Gutter and downspout size for Rialto rain
Gutters are sized for the worst few minutes of a storm, not for the year. In Rialto the five-minute rain expected about once in ten years falls at 3.13 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 2,300 square feet of roof and one 3-by-4-inch downspout about 4,600, by the rule in the Copper Development Association’s design handbook. Try your own roof in the gutter and downspout calculator, which starts from this figure.
Rialto is dry by national standards, about 10 inches in a normal year, but much of the rain that does come can arrive in short, hard storms: the five-minute downpour expected once in ten years still runs at 3.13 inches an hour. Where gutters are used here, the job is moving that burst away from the foundation, and keeping a dry season’s dust and debris from blocking the first storm.
The houses in Rialto
Half the homes in Rialto were built by 1982, 45% before 1980 (ACS 2020–2024). At that age a gutter has seen decades of leaves and storms, and the fascia it hangs from has too. On a house built before 1978, replacing more than 20 square feet of painted fascia or trim falls under the EPA’s lead-safe rule, so ask whether the crew is certified.
65% of households own their home, and 68% of homes are detached houses, 2% townhouses. Where an HOA governs the exterior, its rules on gutter color and style apply before any order is placed.
Hiring in California
Before hiring in Rialto, ask which California license or registration the contractor holds and for a certificate of liability insurance. Hiring a gutter contractor
In California’s fire hazard severity zones, the 2025 Wildland-Urban Interface Code (in force January 1, 2026) requires gutters and downspouts of noncombustible material, and gutters fitted with an approved means to keep leaves and debris from collecting (section 504.4). (2025 California Wildland-Urban Interface Code, Chapter 5 (UpCodes))
Gutter work in Rialto
With half the homes built by 1982, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: