Stanislaus County, California
Gutter cleaning, repair and new gutters in Modesto, CA
Rain in Modesto adds up to about 12 inches in a normal year, with about 1 days that bring an inch or more. The wettest season is winter (December to February), with about 7.0 inches; the driest is summer (June to August), with 0.2. That is about 7,600 gallons a year off each 1,000 square feet of roof, every drop of it through a gutter and a downspout.
Call (866) 228-6229 free call to a gutter contractor serving ModestoModesto: rain and roofs
NOAA station USW00023258, 3 miBars to one scale; the longest is winter (December to February).
Counting days with an inch of rain or more, Modesto sits among the fewest heavy-rain days of the 939 places in California on this site (1.0 a year). By house age it falls near the middle of the 938 places in California on this site (half built by 1978). By its first fall frost it sits near the middle of the 507 places in California on this site (December 5).
When to clean gutters in Modesto
The first fall frost comes around December 5 in a typical year here, and the last spring frost around January 31 (median dates, NOAA normals). Booking the fall cleaning after the first frost, once the trees over the roof are bare, catches the season’s drop in one visit; the spring cleaning comes after the pollen and catkins are down.
When to clean gutters explains how the trees over a roof change the schedule.
Gutter and downspout size for Modesto rain
The short, hard downpour is what a gutter is sized for. In Modesto the five-minute rain expected about once in ten years falls at 3.32 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 2,170 square feet of roof and one 3-by-4-inch downspout about 4,340, 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.
Modesto is dry by national standards, about 12 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 3.32 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 Modesto
Half the homes in Modesto were built by 1978, 55% before 1980 (ACS 2020–2024). Houses that age have often had their gutters replaced once already; if not, the original runs and the boards behind them deserve a close look. 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.
58% of households own their home, and 71% of homes are detached houses, 6% townhouses. In a townhouse or HOA community, check who owns the gutters and what colors are allowed before booking.
Hiring in California
Licensing for gutter work differs from state to state; ask a contractor in Modesto which license or registration they hold in California, and for proof 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 Modesto
With half the homes built by 1978, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: