Toilet Overflow Subfloor Damage — Syracuse, UT

Loss Type: Category 2 Water / Toilet Overflow
Location: Syracuse, UT near 1000 West
Response Time: 47 minutes
Job Duration: 4 days
Insurance: Yes – Travelers

The Situation

A homeowner near 1000 West in Syracuse called us after an upstairs toilet overflowed due to a blocked drain line. The toilet had overflowed for an estimated 20 to 30 minutes before being discovered. Water had flooded the upstairs bathroom floor, migrated under the tile and into the subfloor, and had begun dripping through the bathroom subfloor into the ceiling of the main floor hallway directly below. A visible wet stain had already formed on the hallway ceiling by the time we arrived.

Upkeep’s water damage restoration team was on-site in 47 minutes. A plumber cleared the drain blockage the same evening.

The Problem

Toilet overflow water is classified as Category 2 under IICRC S500 because toilet bowl water contains biological contaminants even before it contacts waste material. All porous materials that contacted the toilet overflow water damage required Category 2 sewage cleanup — meaning the bathroom subfloor, the hallway ceiling drywall below, and any wet insulation between the floor assemblies were subject to antimicrobial treatment and potential removal.

Moisture readings under the bathroom tile showed the subfloor had absorbed a significant volume of water across the full bathroom floor area — approximately 55 square feet. The tile grout had directed water toward the wall bases where it had wicked into the bottom of the drywall on two walls. Thermal imaging moisture detection of the hallway ceiling below confirmed a moisture boundary of approximately 35 square feet in the ceiling assembly.

What We Did

We extracted standing water from the bathroom floor and began a detailed moisture map across both the bathroom subfloor and the hallway ceiling below. Because the bathroom had ceramic tile flooring we drilled 3/4-inch access holes through the tile grout lines at the wall bases to introduce airflow into the subfloor cavity — a technique that supports subfloor drying without tile removal when moisture readings are moderate and the tile itself is intact.

The hallway ceiling drywall was removed across the full moisture-affected area — 35 square feet — to expose the wet joist bay from below and allow simultaneous drying from both directions. An EPA-registered antimicrobial was applied to all exposed subfloor and joist surfaces per Category 2 protocol.

The structural drying process included an Injectidry floor drying system injecting airflow through the tile access holes into the subfloor cavity, 3 air movers directed at the exposed hallway ceiling joist bay and bathroom wall bases, 2 LGR dehumidifiers — one in the bathroom and one in the hallway below — and twice-daily moisture readings on the subfloor, joists, hallway ceiling framing, and bathroom wall drywall bases.

All tile access holes were plugged and grouted as part of job closeout on day 4 after all readings reached target moisture content.

The Outcome

The bathroom tile floor was saved entirely — no tile removal required. The hallway ceiling drywall repair required full section replacement, which was covered under the Travelers insurance claim along with the full remediation scope. The access hole repairs were invisible after grouting. The homeowner was particularly satisfied that the tile floor was preserved given it was a recent renovation.

This is one of several jobs we’ve completed for homeowners in the area. Learn more about our water damage restoration in Syracuse, UT.

“I was sure they were going to have to rip up my bathroom tile — I just had it done two years ago. They found a way to dry under it without removing it. The ceiling downstairs needed fixing but that was expected. Really impressed with how they handled it.”

— P. and R. Stoker, Syracuse UT

For additional examples from our work across Davis County, browse more water damage case studies — including related jobs from the same area: a basement mold inspection in Syracuse and an HVAC condensation damage in Syracuse.