Crawl space mold removal in Van Nuys, California done right the first time
Crawl space mold removal in Van Nuys, California starts with finding where the water is coming from, not just scrubbing what you can see. We handle crawl space mold remediation Van Nuys homeowners call about after a slab leak, burst pipe, or winter rain pushes moisture under the house. Our crews treat the mold, dry the joists and subflooring, and set a vapor barrier so it stays dry.
Service overview
What crawl space mold removal in Van Nuys, California involves
Crawl space mold removal in Van Nuys, California is the process of containing mold growth under your house, physically removing the affected material, and drying the structure so it cannot return. We start with a moisture meter and thermal imaging camera to map wet framing, then set negative air machines and HEPA vacuums so spores do not drift into your living space. Contaminated insulation, baseboards, and sections of subflooring come out. What stays gets treated with an EPA-registered antimicrobial, then dried with commercial dehumidifiers and air movers until the wood reads normal on a moisture meter. Most Van Nuys homes we open up have the same story: a slow foundation water intrusion, an old appliance leak, or a toilet overflow that was mopped up but never dried underneath. The San Fernando Valley's hot, dry summers hide the problem, and the first winter rain brings the musty smell back. If you have been searching crawl space mold removal near me Van Nuys, the fix is drying the source first and treating the mold second. We also handle crawl space mold treatment Van Nuys California property owners need after sewage backup or a roof leak sends water down the walls.
! Common warning signs
Musty odor that keeps coming back
A recurring musty smell usually means active mold growth on wet framing. Air fresheners and sprays cover it for a day or two, but the spores keep moving up through the floor into your living space.
Visible black mold on joists and subflooring
Black mold on structural wood is a sign the crawl space has been wet for weeks or longer. Left alone, the mold feeds on the wood and rot follows, which can mean replacing joists instead of just cleaning them.
Wet insulation and standing water after rain
Insulation that stays wet holds moisture against the framing and feeds mold year-round. Standing water after a storm usually points to foundation water intrusion or a failed sump pump, and it will not dry out on its own.
Scope of work
What our crawl space mold removal service includes
Every crawl space mold removal in Van Nuys, California starts with an inspection and a written scope. The list below covers what is standard on our jobs. If we find a water source that needs a separate repair, like a slab leak or a broken drain line, we tell you before we start and price it clearly.
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01
Full crawl space inspection
We check the entire space with a moisture meter and thermal imaging camera, photograph what we find, and identify the water source. You get a written scope with pricing the same day, usually within two to three hours of arrival.
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02
Containment and HEPA filtration
We seal the access and set negative air machines with HEPA filtration so spores do not drift into your living space. Air scrubbers run for the duration of the removal, typically one to three days depending on the size of the space.
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03
Mold removal and antimicrobial treatment
Contaminated insulation, baseboards, and unsalvageable subflooring come out. Framing gets HEPA vacuumed and treated with an EPA-registered antimicrobial. We follow California Department of Public Health mold guidelines on containment and disposal.
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04
Drying and vapor barrier installation
Commercial dehumidifiers and air movers dry the framing until moisture meter readings return to normal. We then install a sealed 6-mil or 10-mil vapor barrier over the soil and up the foundation walls, and add a sump pump if the space collects groundwater.
Why homeowners call us for crawl space mold
Mold under the house does not stay under the house. It moves into the living space through the floor, and it keeps coming back until the moisture source is fixed. Here is what you actually get when we handle the job.
Book an inspectionTools and methods we use under your house
Thermal imaging camera and moisture meter
We use these together to find wet framing, hidden leaks, and the edges of mold growth that are not visible to the eye. Readings are logged before and after drying so you can see the difference.
Negative air machine with HEPA filtration
This keeps the crawl space under negative pressure during removal, so spores and dust do not drift up through the floor into your living space. It runs for the duration of the job.
Dri-Eaz and Phoenix Restoration Equipment dehumidifiers
Commercial-grade dehumidifiers pull moisture out of the air and the wood framing. We size the equipment to the cubic footage of the crawl space and check readings daily.
RIDGID wet/dry vacuum and sump pump
The wet/dry vacuum handles standing water and debris during removal. A sump pump goes in permanently when the space collects groundwater, so future rain does not pool under the house.
Local execution
Van Nuys sits in the San Fernando Valley, where summers are hot and dry and winter rain comes in a handful of heavy storms. That pattern hides crawl space moisture for months. The ground dries out on top, but water from a slab leak, foundation water intrusion, or an old appliance leak stays trapped under the house. Most of the housing stock here is ranch-style and post-war construction on slab or raised foundations, and a lot of it still has the original plumbing. When a pipe finally lets go, water runs down into the crawl space and sits. We see the same thing every January and February: homeowners call about a musty smell, and the inspection finds mold on the joists that started back in the fall. If you are looking for crawl space mold removal and encapsulation Van Nuys California homeowners can count on, we handle both in one visit so the space is clean and sealed before the next rainy season. We also check for attic mold at the same time, since roof leaks and crawl space moisture often come from the same storm.
How crawl space mold removal runs in Van Nuys
- • Van Nuys Downtown
- • Van Nuys Civic Center
- • Lake Balboa
- • Panorama City
Before and after
Same-day crawl space mold inspections in Van Nuys
When you call, we answer
Call (833) 321-7153 and a real person picks up, day or night. For crawl space mold removal in Van Nuys, California, we aim to have a technician at your door the same day if you call before 2 p.m., and within 24 hours otherwise. Our trucks carry moisture meters, thermal imaging cameras, HEPA vacuums, and enough containment material to start work on the spot if you approve the scope. A typical crew is two technicians, and we can scale to four for larger crawl spaces or when a slab leak has soaked a big area. We work weekends because that is when most homeowners are actually home to let us in. If you are dealing with a burst pipe or an active leak, tell us on the phone and we will prioritize the call so the water gets stopped before the mold spreads further.
How our crawl space mold removal process works
Inspection and testing
We crawl the space with a moisture meter and thermal imaging camera, check the vapor barrier, and look for the water source: foundation water intrusion, a slab leak, a burst pipe, or an appliance leak. You get photos and a written scope the same day, usually within two to three hours of arrival.
Containment and air control
Before anything is disturbed, we seal the crawl space access and set a negative air machine with HEPA filtration. That keeps spores from drifting up through the floor while we work. Air scrubbers run for the duration of the removal, typically one to three days depending on square footage.
Removal of affected material
We pull out moldy insulation, damaged baseboards, and any subflooring or carpet padding that cannot be saved. Framing gets HEPA vacuumed and treated with an EPA-registered antimicrobial. A wet/dry vacuum and water extraction unit handle standing water if the source was recent.
What crawl space mold removal costs in Van Nuys
Typical 2026 pricing for crawl space mold removal in Van Nuys, California runs $1,800 to $6,500. The low end covers a small, contained area with dry framing and no vapor barrier replacement. The high end covers large spaces with soaked wood, contaminated insulation, and a water source that needs repair. We give you a written price after the inspection, before any work starts, so there are no surprises. If you are comparing crawl space mold remediation Van Nuys quotes, ask each company whether the price includes drying, antimicrobial treatment, and a vapor barrier, because some do not.
Square footage affected
A 200-square-foot patch of mold is a very different job than 800 square feet across multiple joists. More area means more containment, more removal, more antimicrobial, and more drying equipment running for more days.
Water source repair needed
If the mold came from a slab leak, burst pipe, or foundation crack, that repair has to happen or the mold returns. Some repairs are simple, like resealing a foundation crack. Others, like a slab leak, add cost and time to the job.
Vapor barrier and sump pump
A new sealed vapor barrier is often necessary, especially if the old one is torn or missing. If the crawl space collects groundwater, a sump pump adds to the total but prevents repeat problems. Both are priced separately and clearly.
Crawl space mold questions, answered
How much does crawl space mold removal cost in Van Nuys California?
Most crawl space mold removal jobs in Van Nuys run $1,800 to $6,500 in 2026, depending on square footage, how far the mold spread, and whether a vapor barrier or sump pump is added. Small, contained growth under a 1,200-square-foot house often lands near the low end. Larger spaces with soaked framing, contaminated insulation, and a water source that needs repair push toward the top.
Who removes mold from crawl space near me in Van Nuys?
You want a licensed contractor with IICRC mold remediation training, not a handyman with a spray bottle. We hold IICRC AMRT certification and work under a CSLB B-1 license, and we follow California Department of Public Health mold guidelines on containment and removal. Call (833) 321-7153 and we can usually inspect the same day.
Is crawl space mold dangerous in Van Nuys California?
Yes, especially when it is black mold growing on wet framing under a living space. Spores move up through the floor and into the air your family breathes, which can trigger allergies, asthma flare-ups, and headaches. The structural risk matters too: mold feeds on wet joists and subflooring, and rot follows if the moisture source is not fixed.
How long does crawl space mold removal take in Van Nuys?
A typical crawl space takes two to four days from containment to final drying, with the vapor barrier going in on the last day. Smaller, dry spaces can finish in a day and a half. If the framing was soaked for weeks, expect four to six days of drying with daily moisture meter checks before we close it up.
Related services
flood restoration services
When a storm or plumbing failure floods the lower level, flood restoration services dry the structure and stop water from reaching the crawl space. We often run both jobs together so mold never gets a foothold.
emergency water removal
Emergency water removal pulls standing water out fast, which is the single best way to prevent crawl space mold. If your water heater or supply line let go, call us before the water soaks into the framing.
Get crawl space mold removal in Van Nuys, California today
Mold under the house gets worse, not better. We inspect the same day, give you a written price, and start work as soon as you approve it. Call (833) 321-7153 and we will get a technician to your door.