Ventura County, California
Gutter cleaning, repair and new gutters in Santa Rosa Valley, CA
Santa Rosa Valley gets about 12 inches of rain in a normal year, and on about 2 days a year an inch or more falls in a single day. The wettest season is winter (December to February), with about 7.5 inches; the driest is summer (June to August), with 0.1. That is about 7,400 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 Santa Rosa ValleySanta Rosa Valley: rain and roofs
NOAA station USW00023136, 11 miBars to one scale; the longest is winter (December to February).
Counting days with an inch of rain or more, Santa Rosa Valley sits near the middle of the 939 places in California on this site (2.4 a year). Its housing ranks among the newest by median year built of the 938 places in California on this site (half built by 1985).
When to clean gutters in Santa Rosa Valley
Frost is rare in Santa Rosa Valley, 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 Santa Rosa Valley rain
The short, hard downpour is what a gutter is sized for. In Santa Rosa Valley the five-minute rain expected about once in ten years falls at 2.84 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 2,540 square feet of roof and one 3-by-4-inch downspout about 5,070, 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.
Santa Rosa Valley 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 2.84 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 Santa Rosa Valley
Half the homes in Santa Rosa Valley were built by 1985, 21% 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.
94% of households own their home, and 99% of homes are detached houses, 1% townhouses. In a townhouse or HOA community, check who owns the gutters and what colors are allowed before booking.
Hiring in California
Ask any contractor working in Santa Rosa Valley what California requires of them for gutter work, and to show proof of 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 Santa Rosa Valley
With half the homes built by 1985, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: