Simi Valley's maintenance calendar doesn't look like a generic "spring cleaning" list — nearly all the year's rain falls in a five-month stretch, wind season brings real wildfire risk, and long dry summers put different wear on a house than a place with year-round rain. Here's what actually matters, organized by the season it matters in.
Jump to a Season:
Wet Season (Roughly November Through March)
Nearly all of Simi Valley's annual rainfall happens in this window. If your gutters, roof, and drainage haven't been checked since last spring, this is when problems show up.
- Clear gutters and downspouts before the rain starts, not after the first storm reveals the problem
- Check for roof leaks — even a small one, left through a full wet season, can turn into a drywall repair
- Walk the yard after a heavy rain and note any spots where water pools instead of draining away from the foundation
- Check deck boards for soft spots or early rot — see our Deck & Patio Repair page
- If a leak has already caused visible drywall damage, don't wait until it dries out to deal with it — see our Drywall Repair page
Dry Season (Roughly April Through October)
Simi Valley gets almost no rain for about seven months of the year. Irrigation carries the load, and heat starts to take a toll on exterior surfaces.
- Check sprinkler heads and irrigation lines for leaks or coverage gaps before the heat sets in — see our Sprinkler & Irrigation Repair page
- Inspect exterior paint and trim for fading, cracking, or peeling from sun exposure — see our Painting Interior & Exterior page
- Check weatherstripping around doors and windows to help keep cooling costs down through the hottest stretch
- Ceiling fans get real use this time of year — a good time to check if any rooms could use one installed. See our Electrical Fixture Install page
Fall — Santa Ana Wind Season
Red Flag Warning days bring dry, fast wind through the pass, and most of Simi Valley sits in a high wildfire-risk zone. This is the highest-stakes maintenance window of the year.
- Clear gutters and roof debris before wind season, even if you cleared them earlier in the year for wet-season prep — debris accumulates year-round
- Check fence panels and gate hardware for anything loose that wind could turn into debris — see our Fencing, Gates & Pet Doors page
- Read our full Wildfire Home Hardening checklist for a complete walkthrough
- See our Santa Ana Wind Season Home Prep guide for securing your property and preparing for power shutoffs
Year-Round Basics
Hard Water Wear
Simi Valley's groundwater runs hard, and it wears down faucet cartridges, showerheads, and garbage disposal seals faster than in areas with softer water. If a fixture has failed more than once in a few years, hard water is usually why — not bad luck. See our Plumbing Fixture Repair page.
Earthquake Readiness
The Santa Susana and Simi faults run close by. A few cheap, fast jobs matter more here than in most places: water heater strapping, cabinet latches, and securing top-heavy furniture. Earthquake Proofing (link coming soon)
The General Punch List
Beyond the seasonal items above, most homes accumulate a running list of smaller things — a sticking door, loose cabinet hardware, a drywall ding. See our General Repairs & Punch List page for how we handle these in one visit instead of five separate calls.
A Simple Way to Think About Timing
If you only do two maintenance passes a year, make them:
- Late summer / early fall — before Santa Ana wind season (gutters, fencing, wildfire hardening)
- Late fall / early winter — before the wet season fully sets in (gutters again, roof check, drainage)
Everything else on this list can be handled as it comes up, but these two windows are where a little attention goes the furthest.