Mold Inspection in Miami, FL

A musty odor in a condo hallway or a closet usually means water is collecting where you cannot see it. Outdoor humidity in Miami averages about 73% (NOAA), so damp drywall and carpet pad rarely dry out by themselves. A licensed inspector's job is to find that moisture, map how far growth has spread, and tell you what actually has to be removed.

Where inspectors look first in Miami homes

Condos and owned apartments. About half of Miami's housing units are in buildings with 20 or more units, according to the U.S. Census ACS. In those buildings the usual suspects are the air handler closet, the drain pan and condensate line, the water heater closet, the ceiling below the unit upstairs, and any wall that carries a neighbor's plumbing. A condensate line clogged with algae can overflow quietly for weeks before a stain shows up.

Concrete block houses. Many older Miami homes have block exterior walls with drywall or plaster fastened over wood furring strips. Wind-driven rain soaks into the block, and the back of the drywall can grow mold while the painted side still looks clean. Inspectors take readings along exterior walls, under window sills, and around roof penetrations. In homes built before 1980, which is about 51% of the city's housing per Census ACS, they also ask about the age of the roof and the drain lines.

When an inspection is worth paying for, and when it is not

• Worth it: a persistent musty smell with no visible source, water from a storm or a pipe that was not dried within 24 to 48 hours, a home or unit you are about to buy, or a disagreement with your association about where the water came from.
• Usually not needed: a small patch on a bathroom ceiling or window caulk with an obvious cause. The EPA says areas under about 10 square feet can generally be cleaned by the homeowner once the moisture problem is fixed.

Timing matters as well. NOAA normals for Miami International Airport show about 10.5 inches of rain in June and 10.2 inches in September, so many problems surface late in the wet season, after air conditioners have been running hard for months.

What a useful inspection report contains

Ask for a written report that names the moisture source, marks the affected rooms and approximate square footage, lists which materials should be removed or cleaned, and sets the clearance criteria the remediation crew must meet. A remediator prices the job from that document, an insurer or association will ask to see it, and it protects you if the mold returns. When samples are taken, the lab results should be attached along with the outdoor comparison sample.

Who may inspect, and why they cannot also do the cleanup

In Florida, a paid mold assessment of most projects larger than about 10 square feet requires a mold assessor license from the Department of Business and Professional Regulation. Look the number up at myfloridalicense.com before the visit. Section 468.8419 of the Florida Statutes bars an assessor from remediating a home it assessed within the previous 12 months, so the person sizing up the problem does not profit from the size of the repair. If you only need lab samples, see mold testing in Miami; if the problem is already confirmed and measured, go to mold remediation in Miami.

What moves the price in Miami

Homeowner-reported costs for an inspection with testing in the Miami area run about $323 to $1,214. A one-bedroom condo with a single problem closet lands near the low end. A larger house, several air samples, a wall-cavity sample, or a report written for an insurance claim pushes the price up. Some companies advertise free visits; our guide on what a free mold inspection includes explains what you usually get for free and what costs extra.

Before you call

Note when you first noticed the smell or stain, whether there was a recent leak or storm, and whether the unit above or next door has had water problems. With those answers, the company you are connected with can tell you over the phone whether a visual inspection is enough or samples make sense, and quote the visit before anyone comes out. Calling costs nothing and commits you to nothing.

Paid mold assessments of most areas over about 10 square feet in Florida require a DBPR mold assessor license. In a Miami condo, ask for the number before the visit and check it at myfloridalicense.com; the assessor generally may not remediate your unit for 12 months.