Mold remediation
Water damage drying
Fire & smoke cleanup
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 $1,200 – $3,800 for a contained room-level removal and $4,000 – $12,000+ for a whole-attic or crawl space project, with most jobs completed in 2 – 5 days. Here’s what matters more than the number: Fontana’s mold problems almost never start the way homeowners expect. They start with Santa Ana winds, hidden roof damage, and ash that finds its way into places you can’t see. Our IICRC-certified team serves every Fontana zip code, from the older 92335 core to the newer 92337 tract developments, and we answer at (833) 589-7005 when you need someone to take this off your plate.
Why OC Restoration Co Is Fontana’s Preferred Mold Remediation Company
We’ve worked in enough Fontana homes to know the difference between a 1950s Kaiser Steel ranch in 92335 and a 2000s stucco tract house in 92337. That matters because mold behaves differently in each. The older wood-frame construction wicks moisture into places you’d never expect, while slab-on-grade foundations in the newer developments create entirely different failure modes. When a Fontana homeowner calls us after a wind event or a hidden leak, we’re not starting from zero. We know the housing stock, the storm drain patterns in the flat core, and what happens when ash meets a torn shingle roof.
Our Mold Remediation team is IICRC-certified, which means we follow documented, protocol-driven processes rather than informal company practices. Insurance adjusters work with us regularly because our moisture mapping, drying logs, and before-and-after documentation meet the standard their files require. Allen Burkhart leads every project with the same expectation: prove the mold is gone with data, not with a shrug. We’re active members of the Restoration Industry Association (RIA) and IFA, held to continuing education and a professional code of ethics. That’s not marketing language. It’s the difference between a contractor who guesses and one who documents.
Restoration work we handle
Bathroom Mold Removal in Fontana
Bathroom Mold Removal is the call we get most often from Fontana homeowners in 92335, and it almost always traces back to the same root cause: a slab leak or pinhole plumbing failure in the original copper supply lines, not poor ventilation. The mold you see on the drywall or behind the toilet is usually the symptom. The source is water moving through a wall cavity or under tile, invisible until it starts staining. In a Fontana ranch built in the 1960s, that means the framing behind the shower surround has been wet far longer than the visible mold suggests.
What a Real Bathroom Remediation Involves
Containment goes up before anything else. We seal the bathroom with negative air pressure so spores don’t spread through the house when we open the wall. Then we remove the affected drywall and insulation, treat the framing with antimicrobial solution, and dry the cavity with Dri-Eaz dehumidifiers and air movers until moisture readings confirm the wood is back to pre-loss condition.
When Fontana Homeowners Should Call Immediately
If you see dark staining at the base of a wall, smell musty air that doesn’t go away, or notice floor tile lifting near a bathroom, call (833) 589-7005 the same day. A typical bathroom mold removal in Fontana runs $800 – $2,400 depending on how far the water traveled behind the wall. Waiting turns a two-day job into a multi-week reconstruction.
Mold Removal Service in Fontana
Mold Removal Service calls in Fontana come in two flavors: the panicked kind after a wind event, and the tired kind from homeowners who’ve been living with a musty smell for months and finally decided to do something about it. Both need the same thing, and it’s not just spraying bleach on a wall. It’s finding where the moisture is coming from, mapping how far the mold has spread, removing it under containment, and drying the structure so it doesn’t come back.
Post-Wind Event Mold in Attics
After a Santa Ana event tears shingles off a roof in 92335, the damage isn’t always obvious from the ground. Water moves through the roof decking into the attic, where dust and ash that blew in through the same gap sit on wet wood and start growing mold within 48 hours. Our team performs moisture mapping across the attic decking and framing, not just a visual inspection, because mold often grows on the underside of the roof sheathing where you can’t see it from the attic hatch.
Slab Leak Mold Under Tile
In newer 92337 homes, mold under tile floors from slab leaks is a recurring problem. The symptoms are subtle: a persistent musty smell, grout that stays dark no matter how much you scrub, or a warm spot on the floor. By the time you notice it, mold is often established under the tile and in the thinset. We remove the affected tile, treat the substrate, and dry the slab before any new flooring goes down.
Trusted Brands We Service in Fontana
Fontana homeowners and property managers call us about mold discovered during air quality testing, after plumbing failures, and following wind or fire events. The equipment we use on every job includes professional-tier brands like Dri-Eaz and Phoenix. These aren’t consumer or rental-grade machines. They’re the same commercial-grade systems you’d find on large national restoration projects, and they’re what makes the difference between drying a surface and drying a structure. We maintain equipment specifically for the demands of Fontana’s climate: dry heat that can mask moisture as it evaporates, while hidden cavities stay wet and keep growing mold.
See the difference
Before
After
Before
After
Before
AfterCommon Mold Remediation Problems We See in Fontana Homes
- Ash-driven attic mold after Santa Ana wind events. Wind-stripped shingles and blown-in ash from the Cajon Pass corridor create the exact combination for attic mold. The ash holds moisture against the wood, and the roof leak feeds it.
- Old copper plumbing pinhole leaks in 1950s-1970s ranch homes. The original galvanized and early copper supply lines in Fontana’s older core develop pinhole leaks that run inside walls for weeks before anyone notices. By the time mold appears, framing damage is already done.
- AC condensate and slab leaks in newer 92337 tract homes. Category 2 water from air handler condensation pans or failed supply lines under slab-on-grade foundations goes unnoticed for long periods, allowing mold to spread under tile and behind baseboards.
- Storm drain backup in the flat 92335 core. When Fontana’s rare heavy rains overwhelm aging storm drains, ground-level water intrudes through door thresholds and wicks into original wood framing. Surface drying alone won’t address what’s inside the wall cavities.
Pricing for Mold Remediation in Fontana, CA
Bathroom mold removal in Fontana typically runs $800 – $2,400. Attic mold remediation from wind-driven roof leaks runs $1,800 – $5,000 depending on the square footage of affected decking. Whole-house mold issues involving multiple rooms or crawl space treatment range from $4,000 – $12,000+. What moves the number: how far moisture traveled, whether containment requires sealing off multiple rooms, and whether building materials need replacement versus treatment. A crawl space with accessible access costs less than one with 18 inches of clearance. We give every Fontana homeowner a written scope before work starts, so you know exactly what’s being done and what it costs. Call (833) 589-7005 for a free estimate. We serve all of Fontana, from 92335 to 92337.
We Also Serve Cities Near Fontana
In addition to Fontana, our team handles mold remediation in Mold Remediation in Fontana‘s neighboring communities including Bloomington, Rialto, Glen Avon, and Pedley. If you’re in one of these areas and dealing with a moisture or mold issue, the same IICRC-certified team and documented process applies.
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
Within one to two weeks, because mold can begin growing on wet drywall or decking within 24 to 48 hours once ash and dust combine with a hidden roof leak. If you notice a musty odor after a wind event, don’t assume it’s just dust. Call (833) 589-7005 and we’ll perform moisture mapping to check for hidden reservoirs before mold becomes visible.
Older 92335 ranch homes have wood-frame construction and original plumbing that leaks inside wall cavities, meaning mold spreads through framing and insulation that newer homes don’t have. Newer 92337 tract homes sit on slab-on-grade foundations, where slab leaks push moisture up through tile and hide mold beneath flooring. The remediation approach, containment setup, and drying equipment differ for each. We know which method applies to your house.
Indirectly, yes. The ash itself doesn’t grow mold, but when wind-driven ash infiltrates attics and wall cavities and combines with moisture from a roof leak or plumbing failure, it becomes a nutrient-rich layer that accelerates mold growth on building materials. After smoke and ash events, we recommend a moisture inspection even if you don’t see visible water damage. Call (833) 589-7005 to schedule one.
We first locate and stop the slab leak, then set up containment in the bathroom, remove affected drywall or tile, treat the framing or slab with antimicrobial solution, and dry the cavity with Dri-Eaz equipment until moisture readings verify pre-loss condition. A typical bathroom mold removal from a slab leak in Fontana runs $1,200 – $2,800 depending on how far the moisture traveled under the tile.
By documenting that the structure reached pre-loss moisture readings before any reconstruction begins, and by advising on the roof repair that stopped the leak in the first place. We use Injectidry systems when needed to dry inside wall cavities without full demolition, and we verify with moisture meters that nothing is left damp. If you had a Santa Ana wind event damage your roof in Fontana and you suspect mold, call (833) 589-7005 for a free estimate.
Written by Allen Burkhart, Owner at OC Restoration Co, serving Fontana and the Inland Empire since 2005.