Mold remediation
Remediation is the part people call about, and it is the second half of the work rather than the first. Cleaning a surface removes what is on it. If the assembly behind that surface is still taking on water, the growth returns to the same square metre, because nothing about the conditions changed.
Why the source comes first
Growth in a building is the visible end of a moisture problem. Recurrence in one specific place is not a cleaning failure — it is a moisture symptom, and it means the water is still arriving. A lateral that backs up in heavy rain, a supply line weeping inside a wall, a shower pan that has failed, a foundation that wicks: none of these are addressed by cleaning what grew.
This is why the two jobs are usually sequenced rather than combined. The water side stops the source and dries the assembly. The remediation side removes what grew while it was wet. Doing the second without the first buys a few months.
What remediation involves when it is done properly
Containment, so that disturbing growth in one room does not distribute it through the rest of the building. Negative air pressure and filtration while the work is open. Removal of porous material that cannot be cleaned, rather than sealing over it. Cleaning of non-porous surfaces. And a verification step at the end that is separate from the person who did the removal.
The step most often skipped is the last one, and it is the only one that produces evidence.
A note on what this page does not do
This site describes what the work involves and helps homeowners reach providers who do it. It does not assess what any particular growth is, and it does not offer opinions about effects on anybody. Questions in that direction belong to a physician, and questions about a specific building belong to someone who has been inside it.
The rest of the work
Where this sits
What an inspection looks for, why growth here appears months after the water did, and what sampling does and does not answer: mold inspection across the Los Angeles basin.