Dishwasher leaked under
the kitchen floor.

Yes — for sudden and accidental failures. A dishwasher door gasket failure, a supply line connection that let go, a drain hose that disconnected, or a pump seal failure are all sudden and accidental events covered by standard Florida HO-3 policies. The resulting water damage to the kitchen floor, subfloor, cabinet bases, and adjacent rooms is covered. A slow drip under the dishwasher that went undetected for weeks or months may be excluded under the maintenance exclusion — the key is the suddenness of the event, which your matched pro documents from Day 1.

Dishwasher water travels under kitchen flooring faster than it appears on the surface. Vinyl plank and laminate flooring have no waterproof barrier at the seams — water slides under the entire floor panel within minutes. From there it soaks into the OSB or plywood subfloor and migrates outward. Cabinet bases (which are typically particleboard) absorb water from below and swell permanently. The water spreads into the adjacent room, under the refrigerator area, and along the wall base on the far side of the kitchen. Professional thermal imaging routinely finds the wet area extending 4–8 feet beyond the visible wet edge at the dishwasher location.

The damage inventory in order of frequency: (1) kitchen flooring — vinyl plank and laminate require full section replacement once the subfloor is wet and the planks have been lifted; (2) subfloor — OSB swells and delampiates when wet, losing structural integrity; (3) kitchen base cabinets — particleboard bottoms and toe kicks absorb water and swell beyond repair; (4) adjacent room flooring — water travels under wall plates into the next room; (5) wall base drywall — drywall at the floor line wicks water upward; (6) ceiling below if it's a second-floor kitchen. Dishwasher water is Category 1 (clean water) unless it contains food debris, making it relatively straightforward to remediate.

Vinyl plank and laminate flooring that has been lifted and dried quickly (within 24 hours, with no subfloor swelling) can sometimes be reinstalled if the individual planks didn't buckle or delaminate. However, most vinyl plank and laminate kitchen floors require replacement after a significant water event — the adhesive backing deteriorates and the click-lock joints warp. Tile flooring over a waterproof membrane may survive if the subfloor dried adequately. Hardwood flooring has the best salvage rate if drying begins within 24–48 hours and the water was clean. Have a moisture professional assess the subfloor before making flooring decisions.

Key prevention steps: Replace the dishwasher supply line hose every 5–7 years — braided stainless steel hoses are more durable than rubber. Check and replace the door gasket when it shows cracking or stiffening (every 5–8 years in Florida's heat). Install a leak detector under the dishwasher that alerts to standing water — the space under the dishwasher is not visible during normal use. Inspect the drain hose connection at the sink drain or garbage disposal annually. Florida's heat accelerates rubber deterioration significantly compared to cooler climates — treat dishwasher maintenance like HVAC maintenance: annual inspection.