Mold Remediation
Containment, source removal and post-remediation verification, under ANSI/IICRC S520. Cleaning the mold, not just killing it.
Mold is a moisture problem wearing a costume. Remove the water and the growth stops; leave the water and it comes back, whatever was sprayed on it.
That is why we start with the source. A remediation that does not identify and address the moisture is a cleaning job with a short warranty.
What remediation actually means. The word matters here. Remediation is the removal of contamination — it is the vocabulary of ANSI/IICRC S520, Standard for Professional Mold Remediation, 4th Edition (2024), and it is not the same thing as restoration. The EPA is direct on the point: it is necessary to clean up mold contamination, not just to kill the mold, because dead mold is still allergenic. Killing is not the goal. Removal is.
What we do not promise. No responsible contractor promises a mold-free building, and the reason is not modesty. The EPA states that it is impossible to get rid of all mold and mold spores indoors, and that in most cases it is neither possible nor desirable to sterilize an area — a background level of spores will remain in the air. Anyone selling you a mold-free guarantee is selling you something the federal agency of reference says does not exist.
There is no federal clearance test either. The EPA states that no federal limits have been set for mold or mold spores, and that sampling cannot be used to check a building's compliance with federal mold standards. What exists is post-remediation verification — confirming that the source is addressed, the contamination is removed, and the area is returned to a normal condition.
On biocides. We use antimicrobials where the work calls for them, and we do not lead with them. The EPA does not recommend the routine use of biocides such as chlorine bleach during mold remediation, and some biocides are pesticides whose application may require a licensed applicator depending on the state. A remediation sold on the spray rather than on the removal has the priorities backward.
On health. The EPA notes that allergic reactions to mold are common, that mold can trigger asthma attacks in people who are allergic to it, and that exposure can irritate eyes, skin, nose, throat and lungs. It also notes that symptoms beyond the allergic and irritant types are not commonly reported from inhaling mold, and that research is ongoing. If you have health concerns, consult a health professional. We will not diagnose anything from a hallway.
Identify and address the moisture source before any remediation begins
Establish containment sized to the affected area
Set the work area under negative pressure with HEPA filtration
Remove porous materials that cannot be cleaned, double-bagged in 6-mil polyethylene sheeting
Clean non-porous and semi-porous surfaces
HEPA vacuum the area on completion
Post-remediation verification
Plastic sheeting, and a work area you will not have access to while it is up
Equipment running continuously, including overnight
Openings in walls or ceilings where material has to come out — mold does not stay on the surface it is visible on
An independent indoor environmental professional on some jobs, where sampling or interpretation is needed
Items that cannot be saved. Porous materials that have absorbed moisture and growth often cannot be cleaned to a state anyone would want to keep
The moisture source identified, and what was done about it
Extent of the affected area and the containment used
A record of materials removed and why
Post-remediation verification result
An itemized estimate of the work performed
24/7 emergency line — (555) 555-0142
[Edit: add your state contractor license number here, and any mold or specialty license you actually hold. Delete this line if none applies in your state.]
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