Water damage drying
Fire & smoke cleanup
Mold remediation
Storm response
Sewage cleanup
ReconstructionFree visual inspection and a written scope of work before any mitigation begins - photos, moisture readings, and drying logs go in your claim file
The scope we write is the scope we bill. Anything new gets shown to you, in writing, before we touch it.
Get your free estimateFast, Reliable Mold Remediation Across Fontana
Mold remediation in Fontana typically costs $1,500 – $6,000 for a standard single-room job, with targeted bathroom or small-area treatment starting around $800 and full crawl space or attic remediation running $8,000 – $15,000 depending on square footage and containment needs. Most Fontana jobs take 3 – 7 days from containment to final clearance testing. If you’ve spotted discoloration on a wall, smelled something stale in a hallway, or just found water where it shouldn’t be, call us at (855) 356-4970. We respond to Fontana homes across 92334, 92335, 92336, and 92337, and we’ve worked in enough older Southridge bungalows and newer north-side two-stories to know exactly what we’re walking into before we arrive.
Why Mahogany Water Damage Is Fontana’s Preferred Mold Remediation Company
Fontana’s housing stock splits into two very different eras, and we’ve spent enough time in both to know the failure patterns before the first moisture reading. South of the 10, in 92335 and 92337, we’re usually chasing hidden slab leaks in 1950s – 70s stucco tract homes with original copper or galvanized supply lines. North of Summit Avenue and into 92336, the calls shift to attic mold from AC condensate overflows and failed PEX lines in 1990s – 2000s production builds. Our crews run IICRC-certified containment and drying protocols on every job, using Dri-Eaz dehumidifiers, Phoenix air movers, and XPOWER HEPA scrubbers that we own and calibrate, not rental units someone grabbed from a supply counter. Noel Carrasco leads a restoration team that handles water, mold, and fire under one roof, which matters when a mold issue started as a water loss and your insurance adjuster wants one coherent scope instead of three contractors pointing fingers. We carry commercial-grade negative air machines and moisture mapping equipment on every truck, so a Fontana estimate isn’t a guess, it’s a measured assessment with a written scope before any work starts.
Restoration work we handle
Bathroom Mold Removal in Fontana
Bathroom Mold Removal in Fontana usually means tackling fungal growth behind shower surrounds, under vanities, or inside wall cavities where decades of steam and occasional plumbing weeps have created a steady moisture supply. In older 92335 and 92337 homes especially, bathroom exhaust fans were often vented into the attic rather than outside, which pushed warm humid air into framing and insulation for 50-plus years. A visible patch on drywall is rarely the whole story; what’s behind it usually extends further into the wall cavity than the stain suggests. Here’s what the work involves and what drives the cost.
Containment and Source Removal
We set up negative air containment before touching the affected area. That means plastic sheeting, HEPA-filtered negative air machines, and sealed doorways so spores don’t spread through the rest of the house while we cut out affected drywall, insulation, and any rotted framing. A typical Fontana bathroom mold job with containment, removal, and antimicrobial treatment runs $1,200 – $3,500 depending on how far behind the wall the growth goes.
Ventilation and Preventative Correction
Removing mold without fixing why it grew is a half job. In Fontana bathrooms, that usually means rerouting an attic-vented exhaust fan to the exterior, replacing a failing wax ring under the toilet, or repairing a slow supply-line drip inside the vanity. We include a written correction scope with every bathroom mold remediation so the fix is documented, not just promised.
Mold Removal Service in Fontana
Mold Removal Service in Fontana starts with a moisture map, not a sales pitch. Whether it’s a south-side slab leak staining baseboards in 92335 or a musty attic in a north-side 92336 production home where the AC drain pan overflowed, we trace the moisture before we price the removal. In Fontana’s older slab-on-grade homes, moisture wicks through concrete and up into drywall, which means the visible mold at the baseboard line is often the top edge of a much larger problem inside the wall cavity. Standard room-by-room mold removal service runs $1,800 – $5,500 here, with crawl space or whole-attic jobs scaling higher.
Slab Leak and Stucco Hidden Growth
In the 1950s – 70s tracts south of Foothill Boulevard, copper and galvanized supply lines run under the slab. A pinhole leak can weep for months before anyone sees anything, and by then the mold has developed inside wall cavities where stucco exterior makes exterior detection nearly impossible. Our moisture mapping equipment reads through drywall and stucco to find the spread before we open walls, which means smaller cuts and less reconstruction.
Attic Mold and Condensate Damage
North Fontana homes built in the 1990s and 2000s have a different signature problem. AC units in hot attics, where summer temperatures push well past 100°F, generate condensate that overflows drain pans, soaks insulation, and feeds mold across the ceiling drywall below. We treat the attic as a contained workspace, remove affected insulation, dry the structure with Dri-Eaz and Phoenix units, and recommend drain-pan safeties so it doesn’t recur.
Trusted Brands We Service in Fontana
Most Fontana homes run equipment from the major brands, but what matters more to us is that the drying equipment we bring is commercial grade and ours. On our trucks you’ll find Dri-Eaz dehumidifiers, Phoenix air movers, and XPOWER HEPA air scrubbers, the same platforms large commercial restoration firms use on hospital and school jobs. Because we stock our own drying gear and replacement parts, a Fontana job doesn’t wait on a supply house delivery. We also keep Injectidry targeted-injection mats on hand for wall and floor cavity drying that avoids tearing out tile, hardwood, or built-in vanities a lesser-equipped competitor would have to demo. That’s the difference between restoration and replacement, and it’s the difference between a two-week disruption and a three-day job.
See the difference
Before
After
Before
After
Before
AfterCommon Mold Remediation Problems We See in Fontana Homes
- Hidden slab leaks in 1950s – 70s south-side stucco homes. Original copper and galvanized supply lines under 92335 and 92337 slabs develop pinhole leaks that go unnoticed until mold shows through drywall months later. By then, the wall cavity usually needs full containment and removal, not just surface cleaning.
- Attic mold from AC condensate overflows in north-side production homes. In 92336 and parts of 92337, attic-mounted air handlers drip on insulation and ceiling drywall during long 100°F-plus summers. Left unchecked, the mold spreads across the ceiling plane and into the HVAC return before the homeowner even notices a stain.
- Smoke and ash intrusion after Cajon Pass wind events. Santa Ana winds drive embers and fine ash through attic vents and into insulation. When winter rain follows, the ash-laden insulation holds moisture and becomes a mold substrate months after the smell of smoke faded.
- Category 3 water events that were dried but not sanitized. Sewage backups and outside floodwater carry bacteria that drying equipment alone won’t remove. When a previous contractor skipped antimicrobial treatment and containment, mold often returns within days of the drying fans coming down.
Pricing for Mold Remediation in Fontana, CA
Fontana mold jobs run a wider range than most cities because the housing stock splits so sharply. A small contained bathroom job in a 1960s stucco home in 92335 starts around $800 – $1,200 when caught early. A standard single-room remediation with full containment, HEPA air scrubbing, antimicrobial treatment, and structural drying runs $2,500 – $5,000. Attic jobs in north Fontana, where insulation removal and replacement drive cost, land between $4,000 and $9,000. Crawl space remediation for a 1,200-square-foot slab home typically runs $6,000 – $12,000, depending on access height and vapor barrier replacement. We provide a written scope with line-item pricing before any work begins, and we document everything with photos for insurance claims. Call (855) 356-4970 for a free estimate, and we’ll send a technician to Fontana with moisture mapping equipment, not a clipboard and a guess.
We Also Serve Cities Near Fontana
Our Mold Remediation crews cover Fontana and the surrounding communities, including Bloomington, Rialto, Glen Avon, and Pedley. If you’re in one of those areas and dealing with mold from a slab leak, AC overflow, or recent water loss, the same IICRC-certified team that handles Mold Remediation in Fontana will be the one showing up at your door. One crew, same equipment, same written scope, no handoffs.
Serving Fontana, CA — Our Local Coverage Area
We’re based in the Fontana area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs About Mold Remediation in Fontana
Mold can begin colonizing within 24 to 48 hours of a water leak in a Fontana home, especially during summer when interior and exterior temperatures stay high. The hotter the substrate, the faster the spore germination cycle runs, which is why a slab leak in a 92335 home or an AC overflow in a 92336 attic becomes a mold problem before the visible water damage does. Call (855) 356-4970 the same day you find or suspect a leak, and we’ll have containment and drying equipment running in Fontana before the 48-hour window closes.
Yes, older stucco homes in 92335 and 92337 often benefit from moisture mapping and surface sampling because the original construction hides leaks inside wall cavities where visual inspection cannot reach. A 1960s slab-on-grade home with original copper lines can have active mold growth for weeks before any discoloration appears. We use moisture meters and thermal imaging to find the spread first, then sample if clearance testing is needed after remediation.
Yes, smoke and ash from Cajon Pass wind events push fine particulates into attic insulation and HVAC returns in north Fontana subdivisions. When winter rain follows, that ash-laden insulation holds moisture long enough for mold to develop on the organic matter it carried in. If your attic smells like an old campfire months after a wind event, call us at (855) 356-4970 before the next rain season turns it into a mold load.
Category 2 water is contaminated but not sewage, such as washing machine discharge or AC condensate overflow. Category 3 water contains sewage, outside floodwater, or other grossly unsanitary sources. The distinction matters because Category 3 water requires full containment, antimicrobial treatment, and removal of affected porous materials before drying even starts; drying alone will not prevent mold from returning after a Category 3 event.
Preventing mold recurrence in Fontana means correcting the moisture source first, then verifying the structure is dry before rebuilding. For older south-side homes, that means repairing or rerouting slab leaks and sealing plumbing penetrations. For north-side homes, it means adding AC drain-pan safeties and correcting attic ventilation. We document every post-remediation moisture reading and provide a written clearance for your records, so the job ends at “restored to standard,” not just cleaned and painted.
Dealing with mold in a Fontana home isn’t a wait-and-see situation. The longer growth sits, the further it spreads into framing, insulation, and your family’s air. Call Mahogany Water Damage at (855) 356-4970 for a free estimate, and a Fontana technician will show up with containment equipment, HEPA air scrubbers, and a moisture map that shows exactly what we’re dealing with and what it’ll take to fix it right.
Written by Noel Carrasco, Owner at Mahogany Water Damage, serving Fontana and the surrounding Inland Empire communities.