Bullfrog Waterproofing mold remediation technician working inside an Orlando home

Mold Remediation Orlando

Orlando's Mold Problem
Starts in the Foundation

Orange County gets more than 50 inches of rain a year. The wet season runs from June through September, and the water table in low-lying areas sits as close as two to five feet below grade. When water pushes through a foundation wall, mold follows within 24 to 48 hours. We remove the mold and waterproof the source in one project. License MRSR5565.

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Why mold spreads fast in Orlando homes

Mold does not need a flood in Orlando, it just needs a few warm humid days, and this is one of the most humid metros in the country. Average humidity sits around 74% and climbs past 90% through the summer, so the moment water gets into a wall or an air handler sweats onto a duct, mold has what it needs. Florida sees mold appear within 24 to 48 hours of moisture, faster than almost anywhere else in the country.

What makes Orlando specific is the housing. Most homes here are concrete block on a slab, built from the 1960s through the 1990s. Block holds moisture against the inside of the wall, and central air systems push spores through the duct work into every room. After Hurricane Ian flooded west Orange County in 2022, the mold calls did not come during the storm, they came weeks later, once the trapped moisture in those block walls had time to feed. That is why we treat the HVAC and the wall cavity, not just the surface you can see.

Mold Remediation Orlando FL

What Makes Orlando's Mold Problem Different

The Wet Season Never Really Stops

Orange County gets more than 50 inches of rain a year, most of it falling in afternoon storms between June and September. In neighborhoods like Dr. Phillips, Metro West and Windermere, the terrain sits low and the water table can reach as close as two to five feet below grade. Sand Lake Road and Apopka-Vineland Road flood because the ground cannot absorb the volume fast enough. That same water pressure presses against the foundation walls of every home around them.

Two Named Storms Left Orlando Playing Catch-Up

Hurricane Ian (September 2022) brought heavy rainfall across Orange County and left moisture behind walls in thousands of homes that homeowners did not find for months. Hurricane Milton (October 2024) moved directly across the I-4 corridor, spawning tornadoes in Orange County and flooding Dr. Phillips and Metro West again. Homes that were not fully dried out after either storm are still developing secondary mold growth. Florida's year-round heat and humidity mean that once water gets in, mold can begin growing within 24 to 48 hours. There is no cold season that slows it down.

Older Homes, a Broken Insurance Market

The ranch homes throughout Ocoee, the original Metro West subdivisions and the older sections of Winter Garden were built in the 1970s and 1980s, before Florida adopted modern moisture barrier requirements. Concrete block construction was standard and most of those homes have no interior drainage system and no vapor barrier in the crawl space. Florida's insurance crisis is now pushing Orange County homeowners into Citizens Insurance or out of coverage entirely. A documented mold claim can trigger non-renewal. For homeowners in these older neighborhoods, fixing the water source before a claim is filed protects both the house and the policy.

Our Process

Six Steps to a Mold-Free Home in Orlando

Inspection and Air Quality Testing

We start with a full visual inspection and test air quality for spore counts. In Orlando's CBS homes, we check behind wall cavities, inside crawl spaces and along the perimeter of slab edges, where water most commonly enters concrete block construction. We open and read the block wall cavities where Central Florida homes hold the moisture the surface hides. You get a written report of what we find before any work begins.

Containment

Before any removal starts, we seal off the affected area with negative air pressure barriers. This keeps spores from spreading to clean areas of your home while work is in progress. Containment is not optional. Skipping it turns a contained problem into a whole-house problem.

Removal and Surface Treatment

We remove all mold-affected material, then treat exposed surfaces with EPA-approved fungicidal solution. We do not spray over mold or encapsulate without removing it. Everything that is contaminated comes out.

HVAC and Duct Treatment

Mold spores travel through your air system and settle in duct work. We replace your HVAC filter and fog antifungal vapor through the ducts to kill airborne spores at the source. We seal off and treat the HVAC system, since Orlando's central-air homes carry spores duct to duct into rooms that never got wet. Most mold companies skip this step. We include it because incomplete remediation is not remediation.

Waterproof the Entry Point

This is what separates Bullfrog from every other mold company in Orlando. Once the mold is out, we waterproof the foundation entry point that let moisture in. Without closing the source, mold will come back. We hold Florida mold remediator license MRSR5565 and we do the waterproofing in the same project, so you do not need to hire a second contractor and coordinate two separate scopes of work. If water damage has occurred, we also offer water damage restoration in Orlando.

Post-Remediation Clearance Testing

After the job is complete, we test air quality again. Spore counts must return to normal outdoor levels before we consider the project done. You receive a written clearance report that documents the before and after readings.

Close-up of a blue-gloved hand pressing a digital moisture meter into a wall showing visible black mold growth and bubbling paint

Technician in a full white hazmat suit and respirator mask standing on a stepladder to spray mold treatment into a ceiling HVAC vent

One Company. Mold Out. Water Stopped. Warranty Backed.

Every other mold remediation company in Orlando will clean up what is there. We do that. But we also close the path water used to get in. Bullfrog holds Florida mold remediator license MRSR5565 and performs full foundation waterproofing under the same contract. That means one crew, one project and one warranty. The moisture that caused the mold is gone for good, not just cleaned up until the next wet season.

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Foundation waterproofing and mold remediation

HVAC Duct Treatment

Killing airborne spores at the source

Mold Remediation in Orlando: Frequently Asked Questions

How fast does mold grow in Orlando?

In Orlando's humidity, usually 24 to 48 hours after any moisture gets in. Central air then spreads spores through the ducts, so a leak in one room can show up as mold across the house within a week.

How much does mold remediation cost in Orlando?

Mold remediation in Orlando typically runs between $1,040 and $4,228, with an average around $2,634 according to industry data. Cost depends on the square footage affected, where the mold is located and whether waterproofing is needed to stop the source. We give you a free on-site inspection with a written estimate before any work starts.

What time of year is worst for mold in Orlando?

Orlando has no real slow season for mold. Hurricane Milton (October 2024) moved across the I-4 corridor and flooded Dr. Phillips, Metro West and other southwestern Orange County neighborhoods. Eighteen months later, many of those homes are still dealing with secondary mold that was not properly remediated after the storm. The same pattern played out after Hurricane Ian (September 2022). Florida's year-round heat and humidity mean mold can begin growing within 24 to 48 hours of water getting in, whether the source is storm flooding, a foundation crack or a slow seep. There is no cold season that stops the growth.

Does Orlando's clay soil make foundation moisture worse?

In Metro West and much of southwest Orange County, yes. Clay-rich soil holds water instead of letting it drain away. After a storm, saturated clay presses against your foundation walls and maintains that pressure for days. Combined with a water table that can sit as close as two to five feet below grade in low-lying areas, clay soil significantly increases the hydrostatic pressure your foundation walls are under. That pressure finds any crack or gap in the block mortar and water follows.

Is mold covered by homeowners insurance in Florida?

Florida homeowners insurance generally covers mold remediation only when the mold resulted from a covered peril. If the water intrusion that caused the mold is covered under your policy, the mold claim is usually covered as a resulting loss. If the source of water is excluded, such as ground seepage or long-term neglect, the mold claim will be denied. We can document the damage before remediation begins to support your claim. See the Florida Department of Health mold resources for more information.

Can mold be fully removed, or does it always come back?

Mold can be fully removed when the job is done correctly. Surface sprays and paint-overs do not work because they leave live material behind. Proper remediation means containment, physical removal of all affected material, fungicidal treatment of exposed surfaces, HVAC duct treatment for airborne spores and a post-remediation clearance test. The reason mold comes back in most cases is that the moisture source was never fixed. That is why Bullfrog waterproofs the entry point as part of the same project.

"We found mold in the crawl space and behind two walls in the master bedroom. Bullfrog handled the full removal, treated the ducts and waterproofed the entry point. All in one project. No surprise second visits."

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