How Do Professionals Dry Out a Flooded House?

Your first step is to ensure the area is safe. If the flooding is from a broken pipe, shut off your main water valve. If the water is deep or you suspect electrical hazards, avoid the area and contact the pros immediately. For a basement flood, do not enter if water is near electrical outlets or appliances.

The pros begin by extracting all standing water. They use truck-mounted or portable pumps for large volumes, followed by wet-dry vacuums for residual moisture on surfaces. This rapid removal is critical to limit further saturation into floors and walls. All furniture and belongings are moved to a dry area or placed on blocks to prevent additional water damage.

As water evaporates, it increases indoor humidity, which can slow drying and cause new problems. Industrial-grade dehumidifiers are deployed to capture this moisture from the air. These units pull in humid air, condense the water vapor, and exhaust dry, warm air back into the space. This creates a drying environment that continuously pulls moisture from building materials.

The pros use two main types: refrigerant dehumidifiers for typical conditions and desiccant models for cooler areas or lower humidity targets. They monitor the process closely with hygrometers to measure air moisture and psychrometers to calculate the drying potential. This controlled dehumidification is what makes professional drying far more effective than simply opening windows and running fans.

• Refrigerant dehumidifiers cool air to condense water vapor, effective in warm, humid conditions.
• Desiccant dehumidifiers use a drying material to absorb moisture, better for cooler temperatures.
• Hygrometers measure the relative humidity in the air to ensure it is dropping.
• Psychrometers compare air temperature to a wet bulb temperature to calculate the dew point.
• The goal is to lower the humidity so materials release their moisture faster.
• Proper capacity sizing is based on the initial water volume and square footage affected.

Once drying is verified, the pros assess what materials can be saved and what needs replacement. Porous items like carpet padding and severely swollen drywall are often removed. All affected surfaces are cleaned and sanitized to address bacteria or contaminants brought in by the flood water. This step is crucial for health, especially if the water source was unsanitary.

The final phase involves preparing the area for repairs. They may apply antimicrobial treatments to framing to inhibit mold growth. The space is then ready for reconstruction work like installing new drywall or flooring. Remember, your insurance company may need documentation of the drying process. Policies vary, and your insurer decides what is covered.