Caulk that won't stay clean, soft floors, stained ceilings
If black spots keep returning on the shower caulk, or the floor by the toilet has gone soft, the mold is probably being fed by water you can't see. Dial +1-844-326-4757 and get routed to a licensed, insured remediator working independently in Olla, who tracks down the leak or ventilation failure first, then removes the damaged material.
This line is free: ESS Mold Inspection only routes calls, and independent local contractors do all of the work.
Bathroom mold, explained
Every bathroom mold call falls into one of two buckets. Some of it is surface growth on grout lines and caulk, feeding on body oils and soap scum, and a good cleaning handles it. The other kind grows behind the tile, inside the wall cavity or under the floor, where a failed shower pan, a leaking valve or a bad wax ring keeps the framing wet for months.
People fight caulk mold for years without winning. When the growth is inside the bead, no spray will reach it; the old silicone gets sliced out with a razor, the gap is dried and treated, and new caulk goes in. Overhead, the ceiling above the shower collects condensation when the fan is too small, gets shut off right away, or blows into the attic rather than through an exterior cap.
Older tub surrounds often hide paper-faced drywall behind the tile, and paper is mold food once water gets past the grout. When the cause is a leak, the remediator and a plumber usually have to coordinate.
Why homeowners call
You'll be asked about the location of the mold, any soft flooring or loose tile, and stains downstairs before the call is routed.
Each contractor in the network runs an independent, licensed and insured business, and it's worth asking to see proof at the door. Some states keep assessment and remediation with separate companies, and the local pro works within that.
A ceiling stain that's growing or a floor that's flexing gets prioritized, and plenty of callers see someone that day.
You see the price in writing before anything is opened, with removal and rebuild items listed separately.
Bathroom pros carry pin and pinless moisture meters for reading through tile, thermal cameras, borescopes for looking into wall cavities, caulk removal tools, and HEPA vacuums with plastic containment.
Scope of work
The scope depends on how far the water traveled, from one caulk joint to the subfloor under the toilet.
The contractor scrubs and seals stained grout, then strips any silicone that mold has grown into and recaulks once the joint is fully dry.
When readings behind the tile run high, a section is opened inside plastic containment, the moldy drywall and backer are removed, and the studs are HEPA vacuumed and cleaned. The wall goes back with cement board and a waterproof membrane instead of drywall.
A failed wax ring lets water wick into the subfloor for months before the floor feels spongy or tiles around the toilet loosen. The toilet is pulled, the rotted subfloor cut out, framing dried and treated, and new plywood installed.
A P-trap or supply line that drips a little each day ruins the cabinet floor and the wall behind it. Pulling the vanity is usually the only way to see the damage behind it.
Ceiling mold from steam is cleaned or the drywall replaced depending on depth, and then the fan gets fixed. A common rule of thumb is about 1 CFM per square foot of floor with a 50 CFM minimum for small baths, ducted outdoors and run about 20 minutes after each shower, often on a timer switch.
Ring the line to reach an independent bathroom remediator in Olla who can read behind the tile and find the water source.
The process
Finding the water comes first in every step.
Describe the spots, any soft flooring, and whether there's an upstairs bath above a stain. You're then routed to a bathroom-focused remediator serving Olla.
For a live leak, the pro often comes the same day, carrying a meter, a thermal camera and drop cloths for the floor.
The contractor scans the tile, floor and ceiling for moisture, check the fan's airflow and where it vents, and may use a borescope through a small hole. If a plumbing leak is found, the quote notes that a plumber needs to repair it first.
Before the wall or floor is closed up, ask for photos of the cleaned framing, dry readings and a copy of any workmanship terms in writing. File it with the plumber's invoice.
From the dispatch log
Small spots, bigger causes: here's what usually turns up.
A homeowner had bleached the tub caulk over and over, and the dots returned within a month each time. The contractor found mold rooted inside the silicone and a fan that cleared barely any air. Moisture readings behind the tile were normal.
Outcome: Old silicone cut out and replaced, grout sealed, and the fan upgraded with a 20-minute timer.
A caller noticed the floor flexing next to the toilet and two tiles that had cracked loose. Once the toilet came up, the wax seal was crushed and the subfloor around the flange was rotted and moldy. Luckily the framing underneath was still sound.
Outcome: Subfloor section replaced, joist treated, new flange and wax ring set, then tile repaired.
A landlord called after a tenant reported a gray patch spreading on the ceiling above the tub. The fan was ducted into the attic, not outdoors, and it was rated far too low for the room. The drywall was soft in one corner.
Outcome: Damaged ceiling section replaced, new fan sized to the room and vented to an exterior roof cap.
A homeowner called about mold spreading on a kitchen ceiling that sat right below the upstairs bath. Thermal imaging and a meter pointed to a failed shower pan liner leaking into the floor system. A plumber was brought in for the pan.
Outcome: Ceiling below opened and cleaned in containment, joists dried, and the shower pan rebuilt before closing up.
These are composite examples based on common calls to the line, not individual customer reviews.
Before you call
Say where the spots are and the dispatcher will match you with a bathroom specialist working in Olla.
Call +1-844-326-4757Because the mold is growing inside the silicone, not just on top of it. Bleach lightens the surface but can't reach the roots in the bead. The fix is to cut the caulk out, dry and clean the joint, and apply fresh mildew-resistant silicone. Better ventilation keeps the new bead clean longer.
Warning signs include loose or hollow-sounding tiles, cracked grout that keeps reappearing, a musty smell that won't clear, and stains on the other side of the wall. A contractor can read moisture through the tile with a meter or infrared camera, and look inside with a borescope through a small hole.
Light surface spotting on sound, painted drywall can often be cleaned and then repainted with a mold-resistant bathroom paint. Sagging, soft or deeply stained drywall needs replacement. Either way, the fan has to be fixed or it'll come back.
For most bathrooms, figure roughly 1 CFM for each square foot of floor, and never under 50 CFM. The duct has to exhaust outdoors, and long, kinked runs reduce what the fan actually moves. A timer switch set for roughly 20 minutes works well.
Not always. If the moisture is limited to one area, the contractor may open just that section of wall. A leaking pan generally means the shower floor and bottom tile courses get rebuilt. You'll see the demo area in the quote before work begins.
Many bathroom mold jobs start with a leak, so the plumbing has to be repaired before the mold work will last. The remediator will flag the source, and you'll typically need a plumber to fix it before rebuild. Steam-only cases are the exception.
Service area
The line connects Olla homeowners, landlords and condo owners with independent pros who handle everything from a single moldy caulk joint to a rotted subfloor. Live leaks and ceiling stains below an upstairs bathroom get priority.
Phone +1-844-326-4757 with your address and a short description, and you'll be connected with a bathroom mold pro working in your part of Olla.
