Mold Remediation in Florissant, MO
Florissant's post-war ranches and split-levels have a lot of below-grade living space, and clay soil keeps that space damp. We remove the mold and deal with the water behind it.
Why Florissant basements grow mold
Florissant sits on heavy clay soil that holds water against foundation walls after rain, pushing moisture through cracks and the joint where the wall meets the floor. Old Town and Cross Keys also see sanitary-sewer backups through basement floor drains in heavy storms. Split-level lower rooms finished with paneling and carpet trap that moisture where no one sees it.
Florissant Mold Remediation Specialists
Wood paneling and carpet over a concrete slab are a common mold combination in Florissant: the slab stays cool and damp, the carpet backing and paneling hold moisture, and growth builds on the back side. We check readings along the base of below-grade walls and under flooring to find the affected area before removing anything.
When mold follows a sewer backup, the materials the sewage touched are removed and the area is disinfected before drying — cleaning the mold alone would leave the contamination. We document the backup and the damage for your water-backup coverage.
We cover Old Town Florissant, Cross Keys and Paddock Hills, the New Halls Ferry Road and Lindbergh Boulevard corridors, and neighboring Bridgeton and Maryland Heights.
Where We Work in Florissant
- ZIPs 63031, 63033 and 63034
- Old Town Florissant
- Cross Keys
- Paddock Hills
- New Halls Ferry Road
- Lindbergh Boulevard (Highway 67)
- I-270 corridor
- Coldwater Creek area
Dispatched from 8651 Old Hwy N, Ste 124, Lake Saint Louis, MO 63367. Serving St. Louis County.
Mold Remediation Services in Florissant
Every job follows the same sequence, scaled to the size of the loss.
Moisture-Led Inspection
Moisture readings and thermal imaging trace growth back to its water source and define how far it goes before anything is opened.
Containment
Plastic barriers and negative air pressure keep spores inside the work area and out of the rest of the building.
HEPA Air Filtration
HEPA air scrubbers run throughout removal to capture airborne spores and dust.
Removal of Affected Materials
Drywall, insulation, carpet and other porous materials that mold has grown into are bagged and removed.
Cleaning and Drying
Framing and hard surfaces are HEPA-vacuumed, cleaned and dried to verified moisture readings.
Moisture Correction and Rebuild
The cause gets fixed — leak, drainage or humidity — before walls go back up, so mold in your Florissant property does not return.
Our Mold Remediation Process
- 1
Inspect
Find the moisture source and map the affected area.
- 2
Contain
Seal the work area and set up negative air.
- 3
Remove
Take out the materials mold has grown into.
- 4
Clean and dry
HEPA-vacuum, clean and dry to verified readings.
- 5
Correct and rebuild
Fix the moisture source, then restore finishes.
Florissant Mold Remediation Questions
Why does the carpet in our lower level smell musty every summer?
Carpet laid over a cool concrete slab collects condensation when humid summer air reaches it, and the backing and pad stay damp. That is enough for mold and mildew. A dehumidifier helps; if the smell persists, the pad and carpet may already be colonized and need to come out.
Can basement mold come back after a sewer backup cleanup?
It can if porous materials that took sewage were cleaned instead of removed, or if the space was not dried to verified readings. Done properly — removal, disinfection, drying, then rebuild — it should not return unless the backup happens again.
Do I need mold testing before remediation in Florissant?
Not always. When mold is visible and the water source is known, testing rarely changes the plan — EPA guidance is that visible growth should be removed whatever the species. Testing is worth doing when you smell mold but cannot find it, when someone in the home has health concerns, or when you want clearance after the work. We recommend clearance testing by an independent assessor rather than the company that did the removal.
Mold in Your Florissant Property? Book an Inspection.
Dispatching 24 hours a day from Lake Saint Louis to Florissant and the rest of St. Louis County.
Call (636) 681-3200 Now