(If you are a Mold Remediation
Contractor/Consultant, visit Information for
Why and Who to Hire
There are companies whose primary focus is mold that
offer the services of indoor air quality (IAQ) consultants and
Testing for mold is generally not necessary. If you
can see and smell mold in your home, you have a mold problem. Mold is usually a symptom of a bigger problem related to inadequate ventilation and a buildup of
moisture. Homes with high moisture (aka high relative humidity) or
stagnant water are more susceptible to mold growth.
If you have a problem with high humidity or stagnant water, you may need
to hire a consultant or home performance specialist. Home
Performance Consultants conduct indoor air quality (IAQ) investigations,
and can determine when structural issues exist that may be causing mold
problems (such as ice dams, moisture, and heating and cooling
complaints). They can help you understand why mold is growing in your
home and what actions you will need to take to prevent mold growth.
Here are IAQ consultants and mold remediation contractors whose primary
focus is mold:
Indoor Air Quality (IAQ) Consultants
Consultants Mold Remediation Contractors
Tips on Hiring
Many consultants and contractors providing mold inspections and
remediation services are honest, reliable and skilled. Here are
suggestions on how to find good consultant/contractors: (This list is based on guidelines provided by the
Wisconsin Department of Agriculture, Trade, and Consumer Protection)
- Get more than one estimate. Make sure all parties are bidding on
exactly the same work. Make sure the contractor comes to the job site
rather than giving a telephone estimate. Be leery of an extremely low
estimate. Be cautious of a contractor or consultant that uses SCARE
tactics to make you do more then you really need to have done.
- Ask for the names of recent customers and call to see if they are satisfied. Would they hire the
- Get a written inspection report, including a summary of all the areas inspected, the cause of the mold
growth, how to take care of the problem and any sampling results? Did
the contractor show up on time, clean up afterward, perform follow-up
service on warranties?
- A building cannot be made mold free. Avoid a contractor who claims
to remove all mold from your building.
- Find out if complaints have been filed against the contractor
or consultant by checking with the the Department of Agriculture, Trade and Consumer
Protection, Bureau of Consumer Protection, 800-422-7128 and the
Better Business Bureau, 800-273-1002.
- The firm that conducts the inspection or air sampling should not be
financially related to a firm that conducts the mold remediation due
to a potential conflict of interest. Consulting firms that have a
financial tie to a contractor should disclose
that relationship prior to any contractual agreement.
Ultimately, it is the property owner's responsibility to ask about
such a relationship.
- Select a laboratory that is accredited by the American Industrial Hygiene Association (AIHA) or
is a U.S. EPA
If a name appears on the Department of Health Service’s
Consultants or Mold
Remediation Contractors' lists, it does NOT constitute an
endorsement of the company or their capabilities. It also does not imply
preference over other companies not listed. These lists have been compiled
from those contractors and consultants who have provided DHS with
information on what training they have undergone. The lists are provided as a
resource to those interested in obtaining these specialized services, but
not sure where to begin.
Neither the Federal government nor DHS certifies consultants or
contractors for conducting mold investigations or removing mold from
buildings. If a consultant or contractor advertises as "State Certified" or
State Endorsed," please refer their name to the
Agriculture, Trade and Consumer Protection, Fraud Division (exit
1-800-422-7128, for deceptive
For general information and tips on hiring contractors, visit the
Department of Agriculture, Trade and Consumer Protection (DATCP) (exit
Follow the links below to view lists of contractors and consultants:
List of Indoor Air Quality (IAQ)
List of mold remediation contractors
For more information, contact your local
health department, or call the Wisconsin Division of Public Health,
Bureau of Environmental and Occupational Health, at (608) 266-1120.
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