Before the Rain Starts: A Fall Home Maintenance Checklist for the Santa Cruz Mountains

Labor Day 2026 lands on September 7, which means you've got a real three-day weekend to work with before the pace of fall picks back up. I already wrote about the quick, satisfying projects worth tackling this weekend, the pressure washing, the touch-up paint, the roofline clearing. This one is different. This is the checklist for the stuff that doesn't make your house look better, but keeps it running the way it's supposed to once the weather turns.

Up here, that turn happens fast. One week it's dry heat and dust on the driveway, the next it's the first real storm of the season, and a lot of the systems that quietly kept your home comfortable and safe all summer, the furnace, the smoke detectors, the water heater, haven't been touched since last spring. None of this is glamorous. But it's the difference between a fall that runs smoothly and a January afternoon spent waiting on an HVAC tech who's already booked three weeks out.

HVAC and Air Quality

Every home up here handles heat a little differently, central furnaces, mini-splits, propane, wood stoves, sometimes all four in the same house depending on when it was built. Whatever yours is, this is the month to get ahead of it.

→ Schedule your fall HVAC service now, before the first cold snap sends everyone else's calendar into a tailspin. Mountain properties often mean a longer drive for the technician, which is exactly why the good ones book up first.

→ Replace your air filters, and set a recurring reminder to keep doing it through fall and winter. It's the cheapest thing you can do for how hard your system has to work.

→ If you heat with a wood stove or fireplace, get it inspected before you light it for the first time this season. The Chimney Safety Institute of America recommends an annual inspection by a certified sweep, and their reasoning is blunt and correct: clean chimneys don't catch fire. If you're in the San Lorenzo Valley, it's also worth knowing about the Spare the Air program, which runs voluntarily from November through April and asks residents to switch to an alternative heat source on days when wood smoke is settling into the valley instead of clearing out.

→ Walk the house and check that vents and returns aren't blocked by furniture that got shuffled around over the summer. It sounds small, but a blocked return makes your whole system work harder for less heat.

Safety Checks

This is the section people skip, and it's the one that actually matters most.

→ Test every smoke detector and carbon monoxide detector in the house, and replace the batteries if it's been a while. California law has required CO detectors in every home, regardless of how it's heated, since 2011, so if you bought an older mountain property and aren't sure yours are up to code, this is worth confirming (California Health and Safety Code § 13113.8).

→ Check your fire extinguisher's gauge. If the needle isn't in the green, or you honestly can't remember the last time you looked at it, replace or recharge it this weekend.

→ Walk the exterior of your property and check that outdoor lighting actually works before the evenings get darker earlier. It matters more up here, where a lot of properties don't have streetlights to fall back on.

→ Confirm your emergency kit is stocked and somewhere you can actually find it, not buried in the back of a closet. We're technically still inside fire season, and PG&E's Public Safety Power Shutoff program is more likely to affect homes in higher fire-risk zones, which covers a lot of the areas I work in. CAL FIRE's Ready for Wildfire program has a straightforward checklist for what belongs in a go bag if you haven't put one together yet.

Weatherproofing and Efficiency

→ Check the weatherstripping around your doors and windows for gaps. It's an easy thing to ignore in August and an expensive thing to ignore once the storms roll in.

→ Inspect the caulking around your windows and reseal anywhere it's cracked or missing. Homes further up the canyon, Lompico especially, deal with more moisture once the rain starts, and a good seal now saves you a mold conversation later.

→ Have your water heater checked, particularly if you're on a well. Well water tends to carry more sediment than municipal water, and that sediment settles at the bottom of the tank over time, making the unit work harder and shortening its life.

→ If you don't already have a programmable or smart thermostat, this is worth looking into before winter. PG&E currently runs a statewide rebate program that includes smart thermostats alongside water heaters and room air conditioners, so it's worth checking what you'd actually pay out of pocket before writing it off.

Exterior and Structural

→ Clear your gutters and downspouts before fall really gets going. Redwood needles and dry summer leaf litter build up fast, and a clogged gutter during the first real storm sends water somewhere you don't want it, usually along your foundation.

→ Get up on the roof, or have someone else do it, and check for anything the summer sun or a storm may have loosened. Better to find a lifted shingle in September than a leak in December.

→ Look at your foundation and exterior walls for any new cracks. Summer heat and dry soil can shift things slightly, and it's worth knowing what's new versus what's always been there, especially if your property sits on a slope.

→ Trim any branches hanging over the roof or too close to the power line running to your house. Redwoods and oaks both drop limbs without much warning, and it's a lot cheaper to handle this now than after a storm brings one down.

You Don't Have to Do It Alone

Not sure where to start, or want a second opinion on what your home actually needs before the rain starts? I'm happy to walk through it with you and help you figure out what's worth prioritizing this month versus what can reasonably wait. I also keep a running list of the HVAC techs, chimney sweeps, and well and septic people who actually show up and do good work up here, and I'm always glad to pass it along.

→ Reach out through my contact page and tell me what's on your mind for the house.

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