Assessed First
Mold Removal & Remediation in St. Louis, MO
Containment, HEPA filtration, and antimicrobial treatment eliminate mold colonies at the source and prevent cross-contamination throughout the property. Mold remediation removes affected porous materials and corrects the moisture source that allowed growth. The work is done under containment with HEPA filtration so spores are not carried into unaffected rooms, and the area is cleared only once the underlying moisture problem has been resolved.
No obligation: the assessment comes before any scope
Remediation is the step after the assessment, not before it. A local pro establishes how far the growth extends and what is feeding it, because removing what is visible while the moisture source is still running puts the same colony back in the same wall. Texas and several other states also set a square-footage point above which the work has to be done by a licensed remediator — the service note below covers where that line falls in this city.
Often needed alongside
- Mold Inspection & Testing
An assessor determines whether mold is present, identifies where it is growing, and measures how far it has spread — before any remediation quote is issued.
- Sewage & Contaminated Water Cleanup
Category 3 black-water losses are handled with full PPE, biohazard disposal, and professional disinfection to restore safe conditions.
Frequently asked questions
Water came up through the floor drain rather than in at a wall. What does that mean?
That the public sewer surcharged rather than the foundation leaking. Water arriving through a fixture during heavy rain is Category 3 and carries sewage, so the scope is disinfection and porous material removal rather than exterior drainage. The two failures look identical on the floor and are not related.
The house is from the 1920s. Is a dry basement realistic?
Managed, yes; sealed, no. Brick foundations of that period were built to carry load, not to exclude moisture, and the damp-proofing layers taken for granted now did not exist. Controlling surface water and keeping the perimeter drained accomplishes far more than treating the inside face of the wall.
Does a backwater valve solve sewer backup?
It addresses the specific failure of water entering backward through the lateral, which is the mechanism here. It does nothing about groundwater or surface water, so it is worth understanding which problem a given basement actually has before installing one and assuming the question is closed.
The same questions, in context, on the St. Louis mold removal page.