Supply Line Leak Under Kitchen Sink — Kaysville, UT

Loss Type: Category 1 Water / Slow Supply Line Leak
Location: Kaysville, UT near Fox Hollow Road
Response Time: Next-day scheduled
Job Duration: 4 days
Insurance: Yes – Liberty Mutual

The Situation

A homeowner near Fox Hollow Road in Kaysville noticed their kitchen cabinet floor felt soft when reaching under the sink to retrieve a pan. Investigation revealed a slow leak at the compression fitting on a hot water supply line that had been seeping undetected for an estimated 3 to 4 weeks. The cabinet floor was saturated, the adjacent toe kick had swollen, and moisture had migrated into the subfloor below and the shared wall between the kitchen and the pantry.

Because the leak was slow and ongoing rather than sudden, the homeowner contacted their Liberty Mutual agent first to confirm coverage before calling us. We were contacted to handle the water damage restoration the following morning.

The Problem

Slow chronic leaks are often more damaging than sudden flooding events because the moisture has time to penetrate deep into structural assemblies before being detected. In this case, 3 to 4 weeks of continuous moisture had saturated the cabinet subfloor, traveled along the floor joist below the kitchen, and caused elevated moisture readings in a 12-square-foot section of subfloor extending toward the pantry wall.

The pantry shared wall showed elevated moisture readings at the base on both sides — kitchen and pantry — indicating the bottom plate had been continuously wet long enough to create a mold risk in the wall cavity. Visual inspection after removing the toe kick confirmed early surface mold growth on the bottom plate and the lower 4 inches of drywall on the kitchen side.

What We Did

The plumber repaired the compression fitting before we began drying work. We removed the affected cabinet base, toe kick, and the lower 8 inches of drywall on both sides of the shared wall to expose the bottom plate and allow the wall cavity to dry completely. The mold-affected bottom plate was treated with an EPA-registered antimicrobial and encapsulant per IICRC S520 protocol.

The structural drying system included:

• Injectidry floor drying panels over the affected subfloor section
• 2 air movers directed at the open wall cavity and exposed subfloor
• 1 LGR dehumidifier running continuously in the kitchen
• Twice-daily moisture readings across subfloor, bottom plate, and wall cavity framing

All readings reached target moisture content on day 4. A post-drying inspection confirmed no active mold growth remained in the treated area. The full scope including mold treatment was documented for the insurance claim file with Liberty Mutual.

The Outcome

The subfloor was saved and required no replacement. The wall cavity dried completely with no further mold development beyond the treated section. Liberty Mutual covered the remediation scope. The homeowner’s contractor rebuilt the lower drywall, reinstalled the cabinet base, and replaced the toe kick. We provided a written report noting the mold treatment for the homeowner’s records.

“I had no idea how bad it had gotten under there. They found mold I couldn’t see and took care of it the right way. The whole process was documented thoroughly which made the insurance claim smooth. Very professional crew.” — A. Christensen, Kaysville UT

If you’d like to see more of the work we do in Davis County, browse our case studies including a water heater failure in Kaysville and a basement flooding situation we restored in Kaysville.