San Mateo County, California
Gutter cleaning, repair and new gutters in Redwood City, CA
Rain in Redwood City adds up to about 19 inches in a normal year, with about 4 days that bring an inch or more. The wettest season is winter (December to February), with about 11.4 inches; the driest is summer (June to August), with 0.2. That is about 11,800 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 Redwood CityRedwood City: rain and roofs
NOAA station USC00047339, 3 miBars to one scale; the longest is winter (December to February).
Counting days with an inch of rain or more, Redwood City sits near the middle of the 939 places in California on this site (4.2 a year). By house age it falls near the middle of the 938 places in California on this site (half built by 1968). By first frost it falls among the latest for the first fall frost of the 507 places in California on this site (December 12).
When to clean gutters in Redwood City
The first fall frost comes around December 12 in a typical year here, and the last spring frost around January 17 (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 Redwood City rain
The short, hard downpour is what a gutter is sized for. In Redwood City the five-minute rain expected about once in ten years falls at 2.50 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 2,880 square feet of roof and one 3-by-4-inch downspout about 5,760, 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.
The houses in Redwood City
Half the homes in Redwood City were built by 1968, 65% 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.
48% of households own their home, and 44% of homes are detached houses, 13% townhouses. If an association maintains the exterior, the gutters may be its job rather than yours; check before calling.
Hiring in California
Licensing for gutter work differs from state to state; ask a contractor in Redwood City 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 Redwood City
With half the homes built by 1968, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: