The short answer
Initial Cleaning Steps
Before any sanitizing product is applied, the area needs a basic cleaning. Pros remove standing water, wet drywall, carpet, and insulation, and discard anything porous that cannot be dried. This step is critical because disinfectants cannot work through dirt, grime, or organic residue.
Next, they scrub all hard surfaces with a detergent and water solution. This includes walls, floors, baseboards, and any furniture that can be saved. The detergent breaks down oils and grime, exposing the surface so the disinfectant can actually reach and kill germs.
Choosing Disinfectants
After cleaning, pros apply a disinfectant that is registered with the EPA for use on hard, non-porous surfaces. Common choices include quaternary ammonium compounds, hydrogen peroxide, or bleach-based solutions. The specific product depends on the material and the type of water damage involved.
You should never mix different disinfectants, as the fumes can be toxic. Pros follow the label instructions for contact time, which is how long the surface must stay wet to kill pathogens. They also ensure proper ventilation and wear protective gear like gloves and masks during application.
- Wear rubber gloves and eye protection
- Open windows or use fans for airflow
- Never mix bleach with ammonia or acids
- Let the disinfectant sit for the labeled time
- Rinse surfaces with clean water after contact time
- Dispose of used rags and sponges properly
Focus on Problem Areas
Certain spots need extra attention during sanitizing. Corners, cracks, and under cabinets are easy to miss, yet they often hold moisture and mold. Pros use a sprayer or cloth to reach these tight spaces, ensuring every surface gets covered.
They also pay close attention to areas that touched floodwater, such as the bottom of walls and the subfloor. If the water came from a sewer backup or contained chemicals, the sanitizing process may be more involved. In those cases, a mold professional or an environmental specialist might be needed.
Drying and Final Checks
Sanitizing is not complete until the area is fully dry. Pros use air movers, dehumidifiers, and sometimes heat to pull moisture out of wood, drywall, and concrete. This drying step prevents mold from returning after the disinfectant has evaporated.
After drying, they do a final visual and olfactory inspection. If any musty smell remains or stains are still visible, they repeat the cleaning and sanitizing process. The goal is to leave the space clean, dry, and without pathogens, not just to mask the odor.
When to Call Local Pros
If the water damage covers a large area or involves sewage, you should consider hiring local water damage pros. They have commercial-grade equipment and disinfectants that are not available to homeowners. Trying to sanitize a whole flooded room on your own can be overwhelming and risky.
Before you start, document the damage with photos and contact your insurance company. Policies vary, and your insurer decides what is covered. If you live in Mesa, keep a list of trusted local pros handy, but do not wait too long, mold can start growing within 24 to 48 hours.
Need help right now?
Call (480) 898-4279 any time, day or night, and describe what happened.
Call Now (480) 898-4279Frequently asked questions
Can I sanitize water damage myself?
For small, contained spills, you can use a bleach-water solution on hard surfaces. But for large areas or sewage water, you should hire local water damage pros. They have the right equipment and know how to dry hidden spaces to prevent mold.
What is the right disinfectant for water damage?
The right product depends on the surface and the type of water. EPA-registered disinfectants like quaternary ammonium or hydrogen peroxide work well on hard surfaces. Always follow the label for contact time and dilution, and test a small area first.
How long does sanitizing take after water damage?
The time varies based on the size of the affected area and how quickly drying begins. A single room might take a few hours, while a whole floor could take a day or more. Proper drying often takes longer than the actual cleaning and disinfecting.