Mold Testing

Many clients want to know exactly what types of mold they have growing in their buildings, and what types of spores that may be breathing in.  We can offer a wide variety of sampling services that are analyzed by professional and impartial labs.  We can perform these testing services in conjunction with a mold inspection, as a final clearance test or remediation verification, or to provide documentation needed for legal of insurance issues.   Below is a brief list of the tests we commonly perform, but services can be customized for additional information:

Some of the mold tests we can perform:

Mold spore air testing (also known as a spore trap analysis or clean air test)

Swab Testing for Mold

Direct tape-lift or bulk sampling

St John Environmental Mold testing for the St Louis Area

Why St. John Environmental Consulting?

  1. We do not offer mold remediation or water damage cleanup work, so you can be assured that our work is totally neutral and unbiased.
  2. We have the building science and indoor air quality background to diagnose and measure a wide variety of indoor air quality concerns and won’t be stumped if mold isn’t really the problem.
  3. We pride ourselves in thorough and cost-effective inspection and testing services with a focus on the use of on-site measurements whenever possible.
  4. Mold testing and inspection services are not regulated in Missouri or Illinois, so you should judge your inspection company by the other similar licenses they hold.  We are licensed for asbestos, lead, mold, and other indoor air quality and environmental services.

Our inspectors will work to evaluate and visually inspect the affected area, sample and test for airborne mold spore levels and confirm or rule out fungal growth, as well as identify the source of problem and provide protocol for procedures to clear and restore the affected areas.

Any place in your home or business with excess moisture, such as standing water or condensation, can foster the growth of mold. If left unchecked, the growth and spread of mold inside a building may lead to health problems and building damage. According to the Centers for Disease Control and Prevention, symptoms can range anywhere from a stuffy nose, eye irritation, wheezing, or skin irritation, to more rare but severe allergic reactions such as fever, shortness of breath and even mold infections in the lungs.

    • Identification of the source of the moisture
    • List of affected materials
    • Photos and floor-plans as applicable
    • Results and interpretation of any lab samples
    • Protocol and procedures for proper remediation and restoration (may include several options and cost estimates for remediation)
    • Additional phone/email consultation with remediation or restoration contractor  (additional fees may apply for on-site consultation)
    • Final evaluation and clearance inspection (additional fees may apply)

Attic Mold Testing & Inspection

Why does attic mold happen?

Attic mold is almost always the result of high humidity in the attic space. This high humidity causes condensation on the cold portions of the roofing materials (plywood or OSB) and results in mold growth on these surfaces. Attics should be designed with proper ventilation in mind. This would usually include low vents (soffit vents, bird-blocks, etc.) and high vents (roof vents, ridge cap vents etc.). Current code in Washington State requires 1 square foot of ventilation per 300 square feet of attic footprint. This is a general rule, but the type, location, and air-flow through the individual vents should be evaluated by a qualified inspector to determine exactly what has caused the deficiency that led to the attic mold growth. A neutral unbiased attic mold inspection will give you the information you need to find out exactly what the next step should be.