Free 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.
Restoration Company in San Lorenzo, CA
San Lorenzo is a flat, low-lying community built along a creek that gives the town its name, and that geography shapes almost every water damage call we take here. The post-WWII Bohannon tract homes, the shallow crawl spaces, and the flood-prone parcels near San Lorenzo Creek all create restoration work that looks different from what you’d see in Castro Valley or the Oakland hills. Marsh Water Damage Restoration handles water, mold, and storm damage across San Lorenzo with a written price before any work starts and a live person answering every call. If you’ve got standing water or a musty crawl space, call (910) 613-6568 and we’ll tell you exactly what’s next.
Why San Lorenzo Homes Are Different
Most of the homes here were built by David D. Bohannon starting in the mid-1940s: small, single-story, two and three bedroom houses on post-and-pier foundations. The crawl spaces under these homes often have just 18 inches of clearance, no effective vapor barrier, and bare soil or degraded kraft paper instead of the plastic sheeting you’d find in newer construction. After any water event, that space holds moisture for days. We routinely pump out standing water and run forced-air drying through those tight crawl spaces before the above-floor work can start, because if you skip that step, the damp air rises and feeds mold in the living space.
San Lorenzo Creek runs straight through town, and a large share of residential parcels sit inside FEMA-designated Special Flood Hazard Areas tied to the creek. During atmospheric-river storms, the creek overtops its banks quickly and water presses against foundations for extended periods. Add the Bay marine layer’s lingering post-storm humidity, and structural drying slows down measurably. These are the jobs where we use psychrometric readings, which is a precise way of measuring moisture in the air and inside framing, to confirm the house is actually dry and not just dry on the surface.
Our Main San Lorenzo Services
San Lorenzo homeowners call us most often for two things: sudden water intrusion from failed plumbing or creek flooding, and mold that shows up later in the crawl space or behind baseboards. Storm damage from the winter atmospheric rivers rounds out the picture. Each of these jobs has its own page below because each one follows a different playbook.
Water Damage Restoration in San Lorenzo
A burst supply line or a creek surge into a Bohannon-era home means water goes where it shouldn’t: under the house, into wall cavities, and through the original wood subfloor. We extract first, then set professional drying equipment from Dri-Eaz and Phoenix to pull moisture out of framing and drywall. Galvanized supply lines in unupdated homes here corrode in the mineral-heavy water and fail without warning, which is a common call pattern we know well. Read the full breakdown on our Water Damage Restoration in San Lorenzo page, including what a typical extraction costs before drying equipment goes in.

Mold Remediation in San Lorenzo
San Lorenzo’s shallow crawl spaces trap moisture, and when they don’t dry out after a water event, mold concentrates where you can’t see it first. Our team isolates the affected area with containment, removes contaminated material, and treats the framing so the problem doesn’t just come back in a few months. The goal is to fix the moisture source, not just wipe the visible growth. Full scope and pricing details are on our Mold Remediation in San Lorenzo page.

Storm Damage Restoration in San Lorenzo
When San Lorenzo Creek rises or heavy rain drives water against foundations, the immediate need is water removal and structural drying, followed by repair of whatever the storm compromised. We stage equipment so it’s ready when the storm hits, because these events are predictable but the timing never is. Our Storm Damage Restoration in San Lorenzo page covers how we handle creek flooding, roof leaks, and the debris that comes with them.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in San Lorenzo
We run Phoenix, XPOWER, and Injectidry equipment on San Lorenzo jobs because these machines hold up to the repeated crawl-space and flood-driven work this area throws at them. Our our brands page lists what we deploy and why. Parts and replacement units are stocked locally, so a failed blower or extractor doesn’t put a drying job on hold.
Pricing for Restoration Company in San Lorenzo, CA
| Service | Typical range in San Lorenzo |
|---|---|
| Water extraction (crawl space pump-out + interior) | $1,200 – $4,500 |
| Structural drying (3 – 5 days, equipment included) | $1,000 – $3,000 |
| Mold inspection with moisture mapping | $250 – $600 |
| Mold remediation (contained area under 100 sq ft) | $1,500 – $6,000 |
| Crawl space vapor barrier replacement | $2,000 – $5,000 |
| Post-flood antimicrobial treatment | $500 – $1,200 |
| Storm water extraction + emergency board-up | $1,800 – $5,500 |
| Replacement of water-damaged drywall (per room) | $900 – $2,800 |
Two things push San Lorenzo prices upward more than anywhere else nearby: the creek-flood parcels that require pump-out before drying can begin, and the 18-inch crawl spaces that demand specialized low-profile drying gear and extra labor. Every job gets a written price before any work starts, printed on the work order, so you know the number before a single tool leaves the truck.
Neighborhoods We Serve in San Lorenzo
Our crews work throughout San Lorenzo, from the blocks closest to San Lorenzo Creek to the quieter residential streets on the community’s eastern edge. We know the housing stock, and we know which streets flood first when the creek rises.
- San Lorenzo Village
- Bay-O-Vista
- Ashland
- Cherryland
- Central San Lorenzo
Response time across San Lorenzo runs under 60 minutes for water and storm emergencies, because we dispatch local crews who already know the shortcuts around the creek crossings. Mold inspections are scheduled around your availability, not ours.
Service Area – Cities Near San Lorenzo
When San Lorenzo homeowners ask whether we handle neighboring cities, the answer is yes. We work in Castro Valley, CA where the hills change the drainage patterns, San Leandro, CA to the north, and Union City, CA to the south. We also serve Oakland, NJ for clients who found us through the broader region.
Serving San Lorenzo, CA - Our Local Coverage Area
We’re based in the San Lorenzo 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 Restoration Company in San Lorenzo
Under 60 minutes for active water intrusion. The creek rises fast during atmospheric rivers, and standing water against a foundation gets worse by the hour. Call (910) 613-6568, a live person answers, and a crew is dispatched immediately. We stage equipment during storm warnings so response isn’t delayed by gear loading.
Most mold remediation inside the building footprint doesn’t require a permit, but if structural repairs extend to framing or foundation work, Alameda County may require one. We handle the scope documentation and can tell you during the initial assessment whether your job needs a permit pull. You’ll know before any work starts.
Most homeowners policies in San Lorenzo cover sudden water damage like a burst pipe, and flood insurance policies cover creek overtopping. We document everything with photos and moisture readings, and we coordinate directly with your adjuster so the file moves. Call (910) 613-6568 and we’ll walk through what your policy likely covers.
What happens when you call
- 1A real person answersNo phone trees - talk to a local damage restoration pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What San Lorenzo Customers Say
"Knowing the techs were background checked was a big deal with them working in our home for days. Respectful and careful with our belongings."
- Priya S."Washing machine hose burst while we were out. The crew arrived with badges, set up fans and dehumidifiers, and checked the wall cavities with a moisture meter. Floors were dry in four days."
- Colleen A."Clear communication about what insurance would cover and what wouldn't. Never felt pushed."
- Oscar P.






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