Clean Sonoma County gutters in the fall, before the steady rain begins, and again later in the season if big trees hang over the roof. That one habit protects the fascia, the foundation and the roof edge, and it takes fuel off the house before the next fire season. This guide covers timing, what goes wrong when gutters get skipped, what a proper cleaning looks like, and how to do it yourself without getting hurt.
What time of year do Sonoma County gutters need attention?
Fall, before the rain gets serious. NOAA’s 1991 to 2020 normals for the Santa Rosa station show October averaging 1.63 inches, November 3.25 and December 6.47, the wettest month of the year. Clearing the gutters in October or early November gets them open before the heaviest storms arrive.
Summer is nearly bone dry by comparison, with July averaging a hundredth of an inch in the NOAA normals for Santa Rosa. That dry stretch is when needles and leaves pile up unseen, so the first fall storm often finds the gutters already half full.
How often do gutters under big trees need cleaning?
More than once a year, in most cases. Redwoods, oaks, pines and bay trees keep dropping needles and leaves through the wet months, so a single autumn visit can be undone by the holidays. Under heavy canopy, plan on a fall cleaning plus a second pass in winter or early spring.
A quick way to judge: stand in the yard during the first real storm. If water is sheeting over the front lip, or a downspout is dribbling instead of running, the gutter has filled again. Homes in deep shade usually need the roof valleys cleared too, since needles collect there and wash down with every rain. Ceylan C. described the routine plainly: “I’ve been using Nor-Cal for my roof and gutter cleaning for many years now.”
What happens to a house when the gutters overflow?
The water ends up where it does the most harm. It spills behind the gutter and soaks the fascia board until it rots, splashes onto siding and window trim, and drops in a line along the foundation, where it softens the soil and finds its way into crawlspaces. Overflow also washes out planting beds.
The damage is slow, which is why it gets missed. Signs worth checking from the ground:
- Dark streaks or peeling paint on the fascia right under the gutter.
- A trench or bare strip in the soil below the drip line.
- Gutters pulling away from the house, or hangers that let go under the weight of wet debris.
- Water stains on the siding below the corners.
Sagging runs and soft fascia are repair work, covered on our gutter repair page.
Why do clean gutters matter in fire season?
Dry needles and leaves in a gutter sit right at the roof edge, where wind-blown embers land. CAL FIRE’s home hardening guidance tells homeowners to keep gutters clear of plant debris so embers have nothing to ignite, and its defensible space guidance puts roofs and gutters on the cleanup list around a house.
That makes late spring a second good moment for a cleaning, after the last rains and before red-flag days. Read CAL FIRE’s Hardening Your Home page and its defensible space guidelines for the full lists. Covers can cut down how much collects up there, and our post on ember-resistant gutter guards takes up that question.
How can you tell a gutter cleaning was done right?
Water runs freely out of every downspout, and nothing is left behind on the roof edge or the ground. A proper cleaning clears each run by hand, flushes the downspouts, and checks the hangers, seams and slope while the ladder is up. You should hear what they found, good or bad.
Photos help when you can’t see the gutters from the ground. Kristin B. liked that part of her visit: “I love that they took pictures before, during and after the service.” If a downspout still backs up after flushing, the clog may sit in an underground drain line or an elbow, which is worth knowing before the storms. What’s included in a visit is on the gutter cleaning page.
Can you clean your own gutters safely?
Yes, on a single-story house with level ground and a sound ladder, if you follow basic ladder rules. The federal portable ladder safety card says to keep three points of contact while climbing, extend the ladder at least 3 feet above where it rests, and stay off the top three rungs.
- Set the base out from the wall about a quarter of the ladder’s working length.
- Use firm, level ground, and check that the extension locks are engaged.
- Look up for power lines before raising the ladder, and keep metal ladders well away from them.
- Climb down and move the ladder instead of reaching out to the side.
- Scoop debris into a bucket, then run a hose through each downspout.
Two-story eaves, steep lots, wet roofs and gutters over decks or slopes are where people get hurt, and that’s the point to call (707) 940-7875. The portable ladder safety card is a two-page read worth doing before any climb.
Questions we hear about this
Do gutter guards mean the gutters never need cleaning?
No, they mean less of it. Guards keep most leaves and needles out, but fine debris, pollen and roof grit still settle in, and some covers collect needles on top that need clearing. A yearly check keeps them working. Our post on types of gutter guards compares the options.
Why does water still spill over a clean gutter?
Usually the gutter has lost its slope, an outlet is too small for the roof above it, or a downspout is blocked lower down. Valleys that dump a big section of roof onto one short stretch of gutter can overwhelm it in a downpour. Those call for repairs, not cleaning, and Dave can sort out which at an estimate.
Is a spring cleaning worth it if the gutters were done in fall?
Often, yes. Trees keep dropping through the winter, and oak flowers and seed pods add to the pile in spring. A spring visit clears that out before fire season and gives the crew a look at anything the storms loosened. Homes with little tree cover can usually skip it.
Sources
- NOAA NCEI 1991-2020 climate normals, Santa Rosa station USC00047965
- CAL FIRE Ready for Wildfire: Hardening Your Home
- CAL FIRE Ready for Wildfire: Defensible Space
- OSHA QuickCard: Portable Ladder Safety (U.S. Department of Labor)