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 costs $1,800 – $6,500 for a typical 100 – 300 sq ft affected area, with most jobs completed within three to five working days. We serve every Fontana ZIP code, from the older north-side tracts to the newer 92336 and 92337 hill subdivisions. Oxford Restoration Co is IICRC-certified and we arrive with industrial drying equipment from Dri-Eaz, Phoenix, and Injectidry, not consumer-grade fans from a rental yard. If you’ve found mold or that persistent musty smell in your Fontana home, call (877) 265-8058 and we’ll schedule an assessment within 24 hours.
Why Oxford Restoration Co Is Fontana’s Preferred Mold Remediation Company
Fontana homeowners call us because we understand this city’s specific failure patterns. Noel Carrasco built our process around a simple observation: most Fontana mold problems are misdiagnosed. A stain on a vaulted ceiling in a 1960s tract home near Kaiser High School may look like a roof leak, but in this city it’s often wind-driven rain pushed under a roof edge during a Santa Ana event. That distinction changes everything about how a job should be scoped, priced, and performed.
Our Mold Remediation team carries moisture meters, thermal imaging, and Injectidry cavity-drying systems that let us dry wall assemblies without tearing out drywall unnecessarily. Fontana customers in 92335 and 92337 appreciate that precision because the alternative is a bigger repair bill and weeks of demolition dust. We don’t hand work to subcontractors. You get the same IICRC-certified crew from initial inspection through final clearance testing.
We hold RIA and IFA affiliations, which means we answer to professional standards, not internal shortcuts. That matters in a market where some contractors still fog bleach and call it remediation. For Fontana property managers handling tenant complaints about recurring bathroom mold in older stucco buildings, our written scope of work and photo documentation also simplify insurance claims and owner reporting.
Restoration work we handle






Bathroom Mold Removal in Fontana
Bathroom Mold Removal in Fontana typically costs $450 – $1,400 for ceiling and upper-wall treatment in a standard 5×8 bathroom. We see this constantly in the 1950s – 1970s single-story tract homes that dominate the 92335 and 92337 ZIP codes, where original exhaust fans are weak or vent into the attic instead of outside. Fontana’s hot, dry summers mask the problem because surfaces dry fast, but the humidity from daily showers still migrates into wall cavities.
What We Actually Do
We contain the bathroom with negative air pressure, remove affected drywall or plaster, and treat framing with an antimicrobial. Then we run structural drying with a Dri-Eaz dehumidifier until moisture readings in adjacent cavities return to normal. If the fan is venting into the attic, we’ll flag it, because no remediation survives that condition.
When Fontana Homeowners Need This Now
Black spotting on the ceiling above the shower, peeling paint along the tub surround, or a persistent damp odor that returns within days of cleaning. In slab-on-grade Fontana homes, bathroom mold sometimes traces to a pinhole leak in original copper supply lines under the floor. We moisture-map before we cut so we don’t treat the wrong square footage.
Mold Removal Service in Fontana
Mold Removal Service in Fontana runs $1,200 – $5,800 depending on the affected square footage, whether the mold is in wall cavities or open attic space, and whether the source is wind-driven moisture intrusion or an active plumbing leak. Older north-side homes near the 10/15 interchange often need a different approach than the 1990s – 2000s stucco builds in the 92336 hills, where envelope leaks around windows and doors are the bigger driver.
Containment and Source Correction
We isolate the affected zone, correct the moisture source, and physically remove contaminated material rather than just coating it. In Fontana we frequently find mold in attics where wind-driven rain blew under roof edges or through a failed exterior door seal, not through the roof field itself. If you don’t fix the door weatherstripping or wind-rated seal, the mold returns in one season.
Clearance and Documentation
After drying and treatment, we run a visual inspection and moisture verification, then provide photo documentation and a written report. Fontana homeowners dealing with insurance adjusters get direct documentation they can send without us acting as a middleman. We coordinate directly with your carrier when you need it.
Trusted Brands We Service in Fontana
Our equipment list is specific for a reason: Dri-Eaz dehumidifiers, Phoenix air movers, XPOWER axial fans, B-Air filtration, and Injectidry cavity-drying systems are what commercial restoration firms use on hospitals and schools. We don’t run contractor-grade blowers. For Fontana customers, that means a bathroom or attic dries fully the first time, and we’re not back in six months re-treating the same wall. We also stock common replacement door seals, weatherstripping, and threshold assemblies appropriate for Fontana’s wind exposure, so post-storm repairs don’t wait on a parts order from Riverside.
See the difference
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After
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After
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AfterCommon Mold Remediation Problems We See in Fontana Homes
- Attic mold that isn’t a roof leak. Cajon Pass winds drive rain under roof edges and through worn door thresholds, especially on north-side tracts where homes face the prevailing gusts. Techs from other areas misread the stain pattern, treat the ceiling, and the mold returns.
- Wind-rated door failures feeding hidden mold. A door that looks fine at eye level can have a rotted threshold or failed weatherstripping that channels water into wall cavities during a Santa Ana event. Remediation without door repair is a temporary fix.
- Slab-on-grade moisture migration. Fontana’s original 1950s – 1970s tract homes sit on slabs, and galvanized supply lines are at the end of their service life. A slow slab leak wicks under flooring and into base plates, producing category-3 contamination that spreads unseen for months.
- Permit issues on wind-rated door replacements. Certain Fontana zones require wind-load compliance on exterior door replacements. A post-storm door swap without proper documentation can fail inspection and leave the opening vulnerable to the next wind event.
Pricing for Mold Remediation in Fontana, CA
A bathroom ceiling job in Fontana generally runs $450 – $1,400. A single closet or small wall cavity with source correction lands around $1,200 – $2,800. Larger jobs, like full attic treatment or remediation after a wind-driven rain intrusion through multiple door assemblies in a mid-century tract home, run $3,500 – $6,500. What moves the number: square footage of growth, whether the mold is in open attic space or enclosed wall cavities, and whether the source is a simple door seal replacement or a full plumbing repipe on original galvanized lines. We provide a written scope of work before any demolition starts. Call (877) 265-8058 for a free estimate, and we’ll give you honest numbers in Fontana terms.
We Also Serve Cities Near Fontana
Oxford Restoration Co covers Fontana and the surrounding Inland Empire communities including Bloomington, Rialto, Glen Avon, and Pedley. If you’re just outside Fontana city limits and dealing with mold from wind-driven moisture or a slab leak, call us and we’ll let you know our next available assessment window.
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
Because Fontana’s wind exposure forces moisture into places leaks never reach. Santa Ana winds push rain under roof edges, through window flashing, and around exterior door weatherstripping. The moisture enters wall and attic cavities, condenses, and feeds mold growth without ever producing a visible puddle or drip. In Fontana’s north-side tracts, this shows up as attic staining that gets misread as a plumbing leak. Call (877) 265-8058 and we’ll moisture-map before assuming anything.
The wind itself doesn’t cause mold, but it drives rain into building envelopes at speeds and angles that normal weatherproofing doesn’t anticipate. Doors and vents rated for ordinary rain fail under sustained 40 – 60 mph gusts. That means Fontana remediation has to include source correction on the door or roof edge itself, not just the moldy drywall. We address both in every scope.
Exterior door replacements in certain Fontana zones must meet wind-load standards for high-wind exposure, particularly in areas near the Cajon Pass corridor. A door that lacks the right rating can fail inspection and, worse, let water back into the same cavity you just dried. We account for local requirements in our written scope before any repair begins.
Yes, and it’s more common than most people think. In Fontana’s 1950s – 1970s single-story homes, the bathroom often sits near a gable end that takes direct wind loads. A failed door seal or window flashing on that wall can feed moisture into the bathroom wall cavity, producing mold that looks like a plumbing or ventilation problem. We check both before cutting anything open.
Mold can colonize within 48 – 72 hours of water intrusion, and in Fontana’s warm Inland Empire temperatures, that window is often shorter. Drywall, insulation, and framing trapped behind stucco hold moisture for weeks unless actively dried. The sooner we get containment and drying equipment running, the less material we have to remove. Call (877) 265-8058 the day you notice staining or odor. It’s cheaper than waiting.
Written by Noel Carrasco, Owner at Oxford Restoration Co, serving Fontana and the Inland Empire with IICRC-certified mold remediation, water damage restoration, and fire damage restoration.