You reached past the parkas for a box and the wall behind them was speckled black from the baseboard up to knee height. The closet sits on an outside wall of the unit, the door stays shut all winter, and the coats trap the little warmth that reaches it. That is the exact recipe: warm indoor air slips into the closet, meets a wall backed by snow, and drops its moisture on the drywall.
The color is what scares people. A dark patch and a pale patch mean the same thing: the wall has been wet for weeks. One call to us reaches an independent provider who works from the ski village down to Ione; we pass along what you saw and step aside.
No one on the crew names the species by looking at it, and they do not need to. The steps for dark growth on drywall are identical to the steps for pale growth: find the water, seal the room, take out the porous material, clean what stays. The first walk-through is a moisture meter run up the closet wall and into the bedroom behind it.
If you want a lab name for your own records, that comes from a testing company you hire on your own. The crew's scope is written from the meter readings and the photos, which is what an HOA board or an adjuster reads.
Move the coats out and hang them somewhere dry. Photograph the wall with a tape measure in the frame if you have one. Then shut the door and leave it shut. A closet is the easiest room in the unit to keep sealed, and the crew would rather tape a closed door than chase spores through a bedroom.
Bleach is the one thing not to reach for. On drywall it whitens the paper face and leaves the growth inside untouched while the wall stays wet. A dark patch that turns pale for a week and comes back darker was bleached.
The stained drywall comes out with a margin past the last wet reading, along with the baseboard and the insulation behind it. The studs, the bottom plate, and the subfloor stay; the crew scrubs and HEPA-vacuums them inside the sealed closet with negative air running. A cardboard box or a fabric bin that leaned on the wall for months goes in the bag too.
The wall gets no new board until the source is handled. In a Kirkwood closet that usually means air-sealing the cavity and adding insulation so the inside surface stays warm, or fixing an eave that lets meltwater in. A closet that backs onto a shower is a different job, covered under bathroom mold removal. Once the wood reads dry, mold damage repair closes the wall.
If your Kirkwood condo or your Placerville rental goes to tenants, the dark patch is a legal matter as well as a repair. Since January 1, 2016, visible mold growth has been a substandard housing condition under Health and Safety Code section 17920.3, which gives a tenant grounds to call the county. A landlord who gets that call wants the scope, the photos, and the closed wall done before the county visit.
The same photos matter at sale. A dark closet wall that was painted over shows up on the buyer's home inspection or on the Transfer Disclosure Statement, and a written removal record answers the question early. California has no mold-specific license, so the contractor carries a standard state license you can check by number.
Whether the wall backs onto snow, a shower, or a neighbor's unit tells the crew more than the shade of the growth. Call (209) 764-2249, say which wall the closet sits on, and mention whether the place is rented out.
Standing byDescribe the stain, the smell, or the wet spot and say where the building is. An independent local provider who works Kirkwood and the Highway 88 corridor takes it from there.
Room-by-room containment after a pipe split in an empty unit in January or a roof leak ran unseen through a whole ski season.
Roof sheathing and insulation fouled by ice dams, warm-side condensation, or a bath fan venting into the attic, cleaned and dried under the snow line.
Growth behind a vanity, above a shower, or inside a wall fed by a weeping valve or a fan that never cleared the steam.