What the March 2016 Bogue Falaya Flood Taught Covington About HVAC Elevation

An air conditioner is full of electrical controls, motors, and insulation, none of which tolerate submersion. Floodwater on the Northshore is not clean, either. It carries mud, sewage, and debris that lodge in coils, contactors, and blower assemblies. Once that grit and contamination is inside, a rinse does not restore the equipment to safe operation.

Powering up a flood-soaked system risks short circuits and fire, which is why submerged units have to be evaluated before any attempt to run them, and often replaced rather than repaired.

The homes that fared best had their equipment up off the ground. Elevated condenser pads and air handlers raised above the flood line kept working while ground-level units were lost. That is the single clearest takeaway from 2016: in a river town, elevation is protection.

FEMA and local floodplain rules increasingly push for mechanical equipment to sit at or above the base flood elevation, and doing so protects both your comfort and your ability to insure and rebuild.

Not every home can do all of this, but even partial elevation of the most vulnerable components dramatically cuts your flood loss. It is worth planning at replacement time rather than after the next flood.

Ducts that sat in floodwater are their own problem. Insulation and duct board soak up contaminated water and stay wet, and the EPA guidance is to dry or remove water-damaged porous materials within 24 to 48 hours to prevent mold. Flooded flex duct and insulated duct board usually need replacement, not just cleaning.

This is why a post-flood HVAC assessment looks at the whole system, condenser, air handler, and ducts, not just whether the outdoor unit turns on.

The families who called us before hurricane season, not during the next flood, are the ones who elevated in time. If your Covington home is near the Bogue Falaya, the Tchefuncte, or in any low-lying area, ask about elevating your equipment and protecting your ductwork now. For a flood-readiness assessment or storm damage evaluation, call (327) 210-5999, and we will help you protect the system before the river decides for you.

When the Bogue Falaya and Tchefuncte overtopped their banks in March 2016, thousands of Covington homes that had never flooded took water, and the HVAC lesson was brutal and clear: ground-level condensers and slab-mounted air handlers were destroyed en masse. Units that sat six inches off the ground fared no better than those on the slab, because the water rose two to four feet in many neighborhoods. The homes that recovered fastest were those whose equipment had already been elevated on tall stands or moved to raised platforms.

The failures were not always immediate. Some systems that got splashed but not submerged ran for weeks, then failed as silt-contaminated bearings and corroded contactors gave out. That delayed failure pattern is why post-flood inspections matter even when a unit seems to have survived. The 2016 event reset how experienced Covington technicians think about placement: in a flood-prone parish, elevation is not an upgrade, it is baseline resilience.

Apply what 2016 taught to any repair, replacement, or new install if your home sits in or near a flood-prone Covington neighborhood.