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Kitchen Water Damage Cost

Kitchen water damage often stems from appliance failures, dishwashers, refrigerator ice-maker lines, and sink supply connections, along with slow leaks under the sink. In 2026 kitchen repairs typically cost 800 to 6,000 dollars, with cabinetry and flooring being the biggest cost drivers. Water frequently pools under cabinets and appliances where it is hard to see, soaking the toe kick, subfloor, and cabinet bases before anyone notices. Because kitchens contain expensive cabinetry, countertops, and flooring, replacing damaged materials adds up quickly. Appliance leaks that run while a home is empty can flood a large area. This guide breaks down kitchen water damage pricing by severity, identifies the common leak sources, and details the factors that determine whether you face a simple cleanup or a costly cabinet and floor replacement.

Minimum

$800

Average

$2,800

Maximum

$6,000

Per sq ft

$5.00–$12.00

Pricing Detail

Cost breakdown

Researched 2026 national pricing. Use the calculator for a state-adjusted, itemized estimate.

ItemLowAverageHigh
Under-sink leak cleanup$300$700$1,500
Cabinet base repair / replace$800$2,000$4,000
Flooring replacement$1,000$2,500$5,000
Subfloor repair$1,200$2,600$4,500
Full kitchen water repair$3,000$5,000$9,000

Where kitchen leaks start

Appliances are the leading source: dishwasher hoses and pumps, refrigerator ice-maker supply lines, and garbage disposal connections. Under-sink shutoffs, supply lines, and drain traps also fail and drip unnoticed into the cabinet below.

Because these leaks hide inside cabinets and behind appliances, water can soak the cabinet base, toe kick, and subfloor for weeks. A warped cabinet bottom, buckling floor, or musty smell often reveals the problem.

Cabinets and flooring drive the cost

Kitchen cabinets are typically made of particleboard or MDF that swells and crumbles when wet, so soaked cabinet bases usually cannot be saved. Replacing base cabinets, especially custom ones, is a major expense.

Flooring is the other big driver. Water that spreads under cabinets and appliances can require replacing a large section of floor and the subfloor beneath, since a seamless patch in the middle of a kitchen is hard to achieve.

Cost Factors

What affects your cost

Leak source

A caught under-sink drip is cheap to fix, while an appliance line that ran for weeks causes widespread damage.

Cabinet material

Particleboard and MDF cabinet bases swell when wet and usually need replacement rather than drying.

Flooring extent

Water spreading under cabinets often forces replacing a large floor section for a seamless result.

Subfloor damage

Rotted subfloor beneath the kitchen requires demolition and structural replacement.

Custom finishes

Custom cabinetry and premium flooring cost far more to match and replace than stock materials.

FAQ

Frequently asked questions

Repairs run 800 to 6,000 dollars. A caught under-sink leak is cheap, while cabinet base replacement, flooring, and subfloor repair after a prolonged appliance leak reach the top.

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