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 Palo Alto
Mold remediation in Palo Alto typically costs $1,800 – $6,500 depending on square footage, containment requirements, and whether we’re dealing with lath-and-plaster or modern drywall. Most jobs in Palo Alto take 2 – 5 days from containment to clearance testing. That’s the straight answer. The longer answer is that mold here behaves differently than in, say, Cupertino or Sunnyvale, because so much of Palo Alto’s housing stock predates 1960 and was built with materials that hold moisture in ways modern construction doesn’t. If you’ve found mold in a Professorville craftsman or a mid-century ranch off Middlefield Road, call (669) 770-7417. We’ll walk you through what you’re actually looking at and what it costs to fix, before anyone schedules anything.
Why Dryden Restoration San Jose Is Palo Alto’s Preferred Mold Remediation Company
We’ve spent years working in Palo Alto’s older neighborhoods, and the work here is different. A 1920s Spanish Revival on Addison Avenue isn’t the same animal as a 1990s tract home in Menlo Park. The walls are thicker, the framing is old-growth redwood, and the plaster absorbs water like a sponge. Our crews know what that means for containment, drying, and what the city’s historic planner will ask to see before you can rebuild.
Every job starts with a written price before any tool is touched. Not an estimate that drifts upward once we open the wall. A number. On paper. That’s The Kingswell Way, and it’s been our standard since Carl Brandt founded Dryden in 2005 as part of the Kingswell family of independently owned restoration businesses.
We answer the phone. A live person, 24 hours a day, 7 days a week. When you call (669) 770-7417 from Palo Alto, you get a dispatcher who knows the area, not a voicemail tree. We’ll give you a named arrival window and the tech who shows up will be background-checked, uniformed, and carrying the same professional-grade equipment large commercial crews use: Dri-Eaz dehumidifiers, Phoenix air movers, XPOWER fans. Work is performed to IICRC, RIA, and IFA standards.
Restoration work we handle
Mold Remediation Services in Palo Alto
Mold Remediation Services in Palo Alto mean full containment, source removal, structural drying, and material matching for older homes. A typical job here runs $2,200 – $5,800, with smaller isolated areas like a single crawl space or bathroom ceiling falling between $1,800 and $2,500. The work involves setting up negative air pressure with 6-mil poly containment, HEPA vacuuming affected surfaces, cutting out materials that can’t be salvaged, treating the remaining structure with antimicrobial agents, and drying to a moisture content below 16% before any rebuild starts.
Containment and Air Quality Control
In Palo Alto homes with lath-and-plaster walls, containment isn’t optional. The plaster dust carries mold spores through the house fast. We seal off the work area, run HEPA-filtered negative air machines, and monitor relative humidity continuously. If we’re working in a raised-foundation home near San Francisquito Creek, we also check the crawl space, because that’s where moisture sits after a wet winter.
Crawl Space and Subfloor Treatment
Older Palo Alto homes on raised foundations trap moisture under the floor, and that moisture feeds mold you can’t see from the living room. We treat crawl spaces with antimicrobial fogging after removing contaminated insulation, then install vapor barriers where the existing one has failed. A crawl space treatment in Palo Alto typically adds $800 – $1,400 to a remediation project.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Professional Mold Removal in Palo Alto
Professional Mold Removal in Palo Alto often comes down to one question: can we save the original plaster, or does it come out in clean rectangles and get matched? In a Professorville home, the answer matters more than in most places. Drywall removal runs $4 – $7 per square foot for the removal and disposal. Lath-and-plaster removal runs $6 – $10 per square foot because it’s slower, dustier, and the material is heavier. Then there’s the matching: original plaster work from a specialist runs $20 – $40 per square foot in Palo Alto’s market.
Black Mold Remediation
Black mold, usually Stachybotrys, needs full containment and often requires us to remove not just the surface mold but the material it’s growing on. In Palo Alto’s older homes, that frequently means original wood lath behind the plaster. We document everything with moisture readings and photos before demolition, because the city’s historic review process wants to see that documentation.
Air Quality Restoration
After the mold is removed and the structure is dry, the air inside the house still carries spores. We run HEPA air scrubbers for 24 – 48 hours, then we test. If you’re in a home built before 1940, we’ll recommend clearance testing before the containment comes down. That runs $300 – $600 and it’s worth every dollar in a Palo Alto house where the building department is already involved.
Trusted Brands We Service in Palo Alto
We work on homes in every Palo Alto neighborhood, from the Eichlers in Greenmeadow to the craftsman homes of Professorville, the ranchers off Embarcadero Road, and the newer construction near Stanford. We carry the equipment those jobs demand: Dri-Eaz dehumidifiers for tight crawl spaces, Phoenix 200 MAX systems for whole-room drying, XPOWER air movers for plaster walls that need slow, even drying. Our techs are trained to IICRC standards and the work is aligned with RIA and IFA guidelines. That means something specific: when we say your walls are dry, we’ve measured them with a Protimeter moisture meter, not guessed.
Common Mold Remediation Problems We See in Palo Alto Homes
- Hidden moisture in original lath-and-plaster. Surface drying isn’t enough. The scratch coat behind the finish plaster holds water for weeks, and if you paint over it, the mold comes back within months. We measure moisture at depth before we call a wall dry.
- Historic-area permit delays. In Professorville and parts of Old Palo Alto, starting demolition without a historic review can trigger a stop-work order. That leaves containment up and mold spores circulating while you wait. We file the paperwork before we cut.
- Mismatched modern drywall in older homes. Using standard drywall where original plaster was removed not only looks wrong, it can fail the city’s historic review and force a full redo. We match materials and edges to the original profile.
- Creek-adjacent flood moisture. Homes near San Francisquito Creek or Adobe Creek can see category 2 or even 3 water intrusion in heavy winters. That water carries contaminants that feed mold fast and require specific containment protocols during remediation.
See the difference
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After
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AfterPricing for Mold Remediation in Palo Alto, CA
Here’s what you can expect to pay in Palo Alto. A small, contained job like a bathroom ceiling or a single closet runs $1,800 – $2,800. A full room with containment, structural drying, and material matching runs $3,500 – $6,500. Crawl space mold treatment adds $800 – $1,400. Post-remediation clearance testing runs $300 – $600. What moves the needle most is whether we’re saving original plaster or replacing it, and whether the city’s historic planner needs to review the scope. Every job gets a written price before work starts. Call (669) 770-7417 for a free estimate, no pressure, no obligation.
We Also Serve Cities Near Palo Alto
Dryden Restoration San Jose serves Palo Alto and the surrounding communities. If you’re in Stanford, Menlo Park, Sunnyvale, or Cupertino, our Mold Remediation team covers those areas too. The same written pricing, the same 365-Day Done Right Promise, the same background-checked techs. For more on our local coverage, see Mold Remediation in Palo Alto. Dispatch and scheduling are coordinated from our San Francisco Bay Area office, and crews serve Palo Alto locally.
Serving Palo Alto, CA - Our Local Coverage Area
We’re based in the Palo Alto 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 Palo Alto
In Professorville, any demolition that touches original fabric, including mold-damaged lath-and-plaster, can require historic review before work begins. That review can take weeks. We document moisture readings, photo the damage, and file the scope of work up front so the city sees exactly what we’re removing and why. That documentation also protects the homeowner if the scope grows mid-job.
Yes. We cut out damaged plaster in clean rectangles, then rebuild with matching materials and profile. In a 1920s home, that means three-coat plaster over wood lath, not drywall. We work with plaster specialists who understand the original thickness and texture. The goal is a repair that doesn’t look like a repair, and that passes the city’s historic review.
Category 2 water, sometimes called gray water, carries significant contamination and requires mold-specific containment. In Palo Alto, overflow from San Francisquito Creek or Adobe Creek during heavy winter storms is typically treated as category 2 at minimum, and sometimes category 3 if sewage or chemical runoff is present. That means full 6-mil poly containment, negative air pressure, and antimicrobial treatment before drying begins.
Not for the mold remediation itself, but if the siding is damaged and needs replacement, the city may require a permit, especially in the Old Palo Alto historic area. The permit process can slow things down, which is why we document everything before we start. If there’s any question, we’ll tell you up front and file the paperwork for you.
Within 24 to 48 hours. In Palo Alto’s wet winter months, when indoor relative humidity sits higher than the dry summer average, mold spores have everything they need: moisture, organic material, and stagnant air. That’s why we recommend calling within the first 24 hours after you notice a leak. Call (669) 770-7417 and we’ll tell you what to do before we arrive.
Call Dryden Restoration San Jose for Mold Remediation in Palo Alto
If you’ve got mold in a Palo Alto home, or even if you just suspect it, call (669) 770-7417. We’ll answer. We’ll explain what we’re seeing, what it costs, and what the process looks like in your specific neighborhood, whether that means matching original plaster in Professorville or treating a crawl space in Greenmeadow. You’ll get a written price before any work starts, a named arrival window, and a 365-Day Done Right Promise in writing. If a covered repair fails within a year, we come back and fix it free. That’s the deal.
Written by Carl Brandt, Owner at Dryden Restoration San Jose. Serving Palo Alto with mold remediation, water damage restoration, and fire damage restoration since 2005.