This guide is general information, not medical advice. If you have health concerns, please consult a medical professional.
Why spring is a good time to check
Bay Area winters can bring heavy atmospheric-river storms. Roof leaks, window intrusion, clogged gutters and poor hillside drainage often show up during or shortly after these storms.
Moisture that entered in winter can remain inside walls, crawlspaces and under flooring for weeks.
What to check
Ceilings below roof penetrations and skylights, walls beneath windows, crawlspaces and garages, and exterior grading that directs water toward the foundation.
Common moisture hotspots in Bay Area homes
- 1Attic & roof deck
- 2Bathroom ceiling
- 3Windows & sills
- 4Under sinks
- 5Behind appliances
- 6Crawlspace / garage
Winter storms reveal leaks. Spring is when you find out what they left behind.
AirCare 365 · Bay Area
Want real numbers for your home?
Inspection, lab-analyzed air samples and a digital report. $520 online, $0 today.
Documenting changes
Moisture readings, thermal imaging and humidity logs taken after the rainy season — and compared to a dry-season baseline — show whether conditions have changed. This is exactly what twice-yearly AirCare 365 visits are designed for.
Want measured information about your home?
AirCare 365 provides moisture and mold and indoor air quality testing across the Bay Area.
Sources
Serving San Francisco, San Mateo, Menlo Park, San Jose, Sunnyvale, Palo Alto, Oakland, Fremont and the rest of the Bay Area.
Read next
- Mold Spores: What They Are, Where They Hide in Bay Area Homes, and How to Test for Them
- Signs of Mold in Your Home
- How to Test for Mold in Your House: DIY Kits vs Professional Testing
- How Much Does Mold Testing Cost in the Bay Area?
Looking for a visit? Explore Bay Area mold testing.