Testing & Assessment
Mold Inspection & Testing in Oakland, CA
An assessment establishes whether mold is present, where it is growing, and how far it extends — before anyone quotes removal. A mold inspection locates moisture and growth that a room-level look would miss, reading wall cavities, subfloor, and the areas behind finished surfaces. The result is a scope: what is affected, what has to come out, and what is driving the moisture.
Most people reach this page after noticing something rather than after something broke: a smell that returns, a stain that spreads, a room that feels damp. An inspection answers what is actually there and where the moisture comes from, which is the information every later decision depends on. Several states, Texas among them, keep assessment and remediation as separate licensed roles specifically so the party identifying the problem is not the party selling the fix. Nothing here is medical advice — if you have health questions, those are for a clinician.
Every pro in our network is licensed and insured in California.
Frequently asked questions
The hills are steep and the flats are fill. Which side actually stays wet longer?
The flats. Fill over bay mud holds the estuary's table whether or not it rained. The hills shed December and then dry. A West Oakland crawl can smell damp in September; a hillside daylight basement is a winter problem. Berkeley's story is culverted creeks. Oakland's extra is the estuary fill that Berkeley's hills do not have.
San Francisco gets more rain. Why is this still a wet city?
Rain is not the flats' source. The estuary is. 22.47 inches is the rain-shadow number, and it is real, but a fill basement wets from the bay on a fair day. Comparing gauge totals across the Golden Gate misses the ground. The peninsula has fog and dunes. These flats have mud and a tide.
There is no creek on the map. Why does Temescal keep coming up?
Because it is in a culvert. The hills still drain to the estuary along the same paths, now under the street. A basement that wets along one line after December rain is often the old channel. Alameda's story is island fill. This is a buried creek plus fill. Digging for a surface channel will not find it.