Santa Clara County, California
Gutter cleaning, repair and new gutters in Los Altos Hills, CA
A normal year in Los Altos Hills brings about 42 inches of rain; on roughly 13 of its days, an inch or more comes down at once. The wettest season is winter (December to February), with about 24.1 inches; the driest is summer (June to August), with 0.6. That is about 26,200 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 Los Altos HillsLos Altos Hills: rain and roofs
NOAA station USC00048273, 4 miBars to one scale; the longest is winter (December to February).
Counting days with an inch of rain or more, Los Altos Hills sits 62nd for heavy-rain days of the 939 places in California on this site (13.1 a year). By house age it falls near the middle of the 938 places in California on this site (half built by 1976). By its first fall frost it sits among the latest for the first fall frost of the 507 places in California on this site (December 15).
When to clean gutters in Los Altos Hills
The first fall frost comes around December 15 in a typical year here, and the last spring frost around March 21 (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 Los Altos Hills rain
What overwhelms a gutter is a burst, not a season. In Los Altos Hills the five-minute rain expected about once in ten years falls at 3.16 inches an hour (NOAA Atlas 14 Volume 6). At that rate one 2-by-3-inch downspout drains about 2,280 square feet of roof and one 3-by-4-inch downspout about 4,560, 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 Los Altos Hills
Half the homes in Los Altos Hills were built by 1976, 57% before 1980 (ACS 2020–2024). In a neighborhood that age, many houses are on their second set of gutters or due for one, and the fascia board behind them is worth checking at the same visit. 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.
95% of households own their home, and 98% of homes are detached houses, 2% 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 Los Altos Hills 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 Los Altos Hills
With half the homes built by 1976, replacement gutters and the fascia behind them come up more often here than in newer suburbs. The line takes all of it: