Water damage drying
Fire & smoke cleanup
Mold remediation
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 estimateTrusted Mold Remediation for San Francisco Homeowners
Mold in a San Francisco home is rarely just a surface problem. The city’s cool, damp marine air, fog that rolls in daily from the Pacific, and older housing stock with single-pane windows and minimal ventilation create conditions where moisture settles in and mold takes hold behind walls, under sinks, and in bathroom ceilings. A musty smell you can’t place or a dark patch that returns after cleaning usually means the moisture source is still active. That’s where Tidemark Water Damage San Francisco comes in. We offer Mold Remediation in San Francisco with a written price before any work starts, pet-safe products where a choice exists, and a 365-Day Done Right Promise that follows every job long after the crew leaves. Call (831) 400-3496 to speak with a live person, day or night.
Mold Removal Service
Mold Removal Service is the physical removal of visible mold growth from building materials and surfaces, paired with the treatment needed to keep it from returning. You need it when you can see discoloration on walls, ceilings, or baseboards, or when a room smells persistently damp and earthy. Tidemark Water Damage San Francisco approaches removal the same way we approach Mold Remediation in Oakland: find the tide mark, dry past it, and remove what can’t be saved. Most San Francisco jobs we see in a single bathroom or closet run between $800 and $1,800, and you’ll see the written number before we start.
Containment Before Removal
Plastic sheeting and negative air pressure keep spores from drifting into bedrooms and kitchens while we work. Shoe covers go on at the door. Drop cloths cover the floor before the first piece of equipment comes in.
Why We Remove, Not Just Spray
Killing mold without removing it leaves dead spores behind, and those still trigger allergies and asthma. We cut out affected drywall, treat the framing, and leave surfaces that are actually clean, not just painted over.
Restoration work we handle
Mold Remediation Services
Mold Remediation Services go beyond surface cleaning to address the moisture that feeds mold in the first place. You need remediation when mold recurs after cleaning, when a leak or flood has gone unaddressed, or when a home inspection flags mold before a sale. The team at Tidemark Water Damage San Francisco follows IICRC standards for containment, removal, and drying, using equipment from Dri-Eaz and XPOWER. Full remediation in a San Francisco home with two affected rooms typically runs $2,500 to $6,000, including the written scope you approve before anyone picks up a tool.
Moisture Mapping and Drying
We use thermal imaging and moisture meters to find where water traveled, not just where it pooled. A tide mark is the line water leaves on a wall, and it’s the first thing our technicians look for on every job.
Post-Remediation Verification
After removal and drying, we run air sampling or surface swabs to confirm spore levels have returned to normal for the space. The photo of the clean-up is shared with you before the crew leaves, so you see exactly what was done.
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
Professional Mold Removal means trained technicians, proper containment, and documentation, rather than a handyman with bleach and a bucket. You need it when mold covers more than roughly ten square feet, when it’s inside wall cavities or HVAC ducts, or when someone in the home has respiratory issues. Tidemark Water Damage San Francisco technicians are credentialed through IICRC, RIA, and IFA, and they arrive uniformed and background-checked. Professional removal for a contained bathroom or kitchen area in San Francisco usually falls between $1,200 and $2,500, and our Mold Remediation in Hayward and Peninsula clients see the same upfront written pricing.
What Credentials Actually Mean
IICRC certification means the person in your home has passed exams on industry-standard removal and drying procedures, not just watched a training video. RIA and IFA credentials add specialization in restoration and forensic investigation.
When DIY Isn’t Safe
Disturbing mold inside a wall sends spores into the air, which is the opposite of what you want when a child or pet is sleeping two rooms away. We contain first, remove second, and verify third.
Mold Inspection
Mold Inspection is the diagnostic step that identifies whether mold is present, what type it is, and where the moisture source is hiding. You need it when you smell something off but see nothing, when water damage happened months ago and was never properly dried, or when buying or selling a home in San Francisco. Our inspection includes thermal imaging, moisture meter readings through walls and floors, and air or surface sampling when needed. A visual inspection with a written report for a San Francisco single-family home typically runs $350 to $600, and the findings come with a straight answer about what we’d do next and what it would cost.
Thermal Imaging Finds What Eyes Miss
Cold spots in walls and ceilings often signal trapped moisture that feeds hidden mold. We scan every room, including closets and under sinks, because mold in San Francisco homes commonly starts where a slow pipe leak has gone unnoticed for months.
Sampling Without Fear
We don’t sell a lab report unless the lab report is necessary. If you need documentation for a real estate transaction or insurance claim, we collect samples carefully and send them to an accredited lab.
Mold Removal Specialist
Mold Removal Specialist is the person you want when mold has gotten into drywall, insulation, or subflooring and a general contractor is out of their depth. You need a specialist when remediation involves structural drying, when multiple rooms are affected, or when a prior attempt at removal didn’t solve the problem. Rick Sumner has built Tidemark Water Damage San Francisco around a simple standard: explain before acting, and name what will be protected and how. Specialist-led remediation for a multi-room San Francisco job generally runs $4,000 to $9,000, and every number is in writing before the first cut is made.
Rick Sumner’s Approach
Rick Sumner, the owner behind Tidemark Water Damage San Francisco, has built the local operation around the Cedarwell Care Promise network standard: written price first, pet-safe products, and a 365-Day Done Right Promise.
When a Specialist Saves You Money
Doing remediation wrong the first time means ripping it out and doing it again. A specialist finds the full extent of the water damage the first time, so you don’t pay for the same wall twice.
Black Mold Removal
Black Mold Removal is the careful removal and treatment of Stachybotrys chartarum, the greenish-black mold that has a reputation, sometimes overstated, for being the most dangerous type to breathe in. You need professional removal when dark, slimy-looking mold appears in areas that stay damp, like behind a leaking shower pan or under a sink that drips. We treat every mold type with the same level of care and containment, and we don’t use fear to sell work. Black mold removal in a San Francisco bathroom of typical size runs $1,500 to $3,000, with the written price delivered before we begin.
Don’t Panic, Don’t Wait
Not every dark mold is Stachybotrys, and not every Stachybotrys exposure makes people sick. But any mold that’s been growing unchecked for months deserves a professional look, especially in homes with small children or anyone with asthma.
Safety Is Our Default
High-concentration spore exposure during black mold removal can irritate lungs and skin. Our technicians wear full PPE and run HEPA air scrubbers during the job, and we keep the containment zone sealed until the air tests clear.
Mold Removal Contractor
Mold Removal Contractor is a licensed, insured restoration company qualified to pull permits when needed and remove mold from structures, not just surfaces. You need a contractor when remediation touches framing, subflooring, or load-bearing walls, or when your insurance company requires a documented, credentialed responder on the job. Tidemark Water Damage San Francisco is independently owned and operated, working to the Cedarwell Care Promise. Contractor-led removal with structural drying in a Bay Area home typically ranges from $3,500 to $8,000, and we coordinate directly with your adjuster when a claim is involved.
Working With Your Insurance
We photograph everything, document moisture readings, and provide the written scope your adjuster needs to process a claim. You get the same documentation, so you never wonder what was found, what was done, and what it cost.
Permits and Code
When structural repairs are required, we handle city of San Francisco permitting so the work is inspected and signed off. You shouldn’t have to become a building code expert to fix a mold problem.
Bathroom Mold Removal
Bathroom Mold Removal is one of the most common services we perform in San Francisco, where older Victorians and 1940s row houses often lack exhaust fans or have fans that vent into the attic instead of outside. You need it when mold keeps coming back on the ceiling, around the tub, or under the vanity. We remove affected drywall and trim, treat the framing, fix the ventilation problem if it’s accessible, and leave the bathroom clean. Removal for a modest San Francisco bathroom runs $900 to $2,000, and we always check the fan and vent before we call the job done.
The Ventilation Issue
If the exhaust fan vents into the attic, that moisture goes somewhere, and that somewhere is usually the underside of your roof sheathing. We check where the duct actually goes, not just whether the fan makes noise.
Kid and Pet Safe Products
Where there’s a choice, we use pet-safe cleaning and treatment products. We also run quieter settings on drying equipment during naptime and school hours, because the family still lives here while the work happens.
See the difference
Before
After
Before
After
Before
AfterBrands We Service
We run professional-grade drying and remediation equipment from Dri-Eaz and XPOWER on every mold job that needs it. Dri-Eaz dehumidifiers and air movers are built for restoration work, not home use, and their sensors give us the precise moisture numbers we need to know the drying is actually done. XPOWER air scrubbers with HEPA filtration run during removal to keep airborne spores contained inside the work zone.
Our IICRC, RIA, and IFA credentialed technicians also work with Injectidry systems when mold is the result of water that traveled through structure, like a leak that ran inside a wall cavity or ceiling. We know how to set up and monitor this equipment to dry past the tide mark, not just to the visible stain. Whether you have mold in a single bathroom or spread through a crawl space, we come prepared.
Signs You Need a Pro Right Now
- A musty smell that doesn’t go away. That earthy odor comes from microbial volatile organic compounds, which means mold is actively growing somewhere, even if you haven’t found it yet. A pro with thermal imaging can locate the moisture source fast.
- Dark stains on walls, ceilings, or baseboards. Mold growing on a surface usually means it’s also growing behind that surface. Wiping it down doesn’t fix the moisture inside the wall cavity.
- Recent water damage that wasn’t professionally dried. Mold can begin growing within 24 to 48 hours of a leak in San Francisco’s humid coastal air. If a pipe burst or a toilet overflowed and the area was only air-dried, hidden mold is a real risk.
- Peeling paint or warped drywall around windows and doors. Condensation and rain intrusion in older San Francisco homes often leave the wall cavity wet for months. Where there’s warping, there’s been water, and where there’s been water, mold usually follows.
- Someone in the house can’t stop coughing or sneezing. Wheezing, headaches, or worsened allergies that ease when you leave the house can point to mold exposure. Children, elderly family members, and anyone with asthma are most affected.
Our Process, Step by Step
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Walk the house and listen. We start by asking when you first noticed the smell or stain, and whether there’s been any water damage in the past year. Then we check the obvious spots and the not-so-obvious ones: under sinks, behind the washing machine, at the base of exterior walls.
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Map the moisture. Using thermal imaging and moisture meters, we find where the water actually went, including inside wall and ceiling cavities. We look for the tide mark: the line water leaves behind as it travels, because everything below it is suspect.
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Write the scope and price. Before any work starts, you see exactly what we’ll remove, what we’ll treat, what we’ll dry, and what it costs. Nothing gets torn out without your written agreement. This is the Cedarwell Care Promise standard, and it applies on every job.
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Contain, remove, and dry. We seal off the work area with plastic sheeting and negative air pressure, then remove affected materials carefully. HEPA air scrubbers run throughout, and professional drying equipment from Dri-Eaz and XPOWER runs until moisture readings confirm the area is dry, not just looking dry.
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Verify and show you the work. We take a photo of the clean-up before the crew leaves and share it with you. If sampling was done, we send you the lab results and explain them in plain words. The 365-Day Done Right Promise means if anything isn’t right, we make it right.
How Much Does Mold Remediation Cost in San Francisco?
A typical single-bathroom mold removal in San Francisco runs between $900 and $2,000. A kitchen with water damage behind the cabinets typically runs $1,500 to $3,500. Multiple rooms involving structural drying can reach $9,000 or more. Prices in the city trend higher than in Hayward or other East Bay cities because parking, access, and building density affect how long a job takes and how crews move equipment through narrow hallways and stairwells.
What affects the price: how far the mold has spread, whether drywall and insulation need replacement, whether structural framing is involved, and whether the moisture source is still active. You avoid overpaying by getting a written scope before work starts and by choosing a company that removes and dries rather than spraying and walking away. Our estimates are free, detailed, and delivered before you commit to anything.
Our Service Area Near San Francisco
Tidemark Water Damage San Francisco serves the entire city, from the Sunset and Richmond districts to Bernal Heights, Noe Valley, the Mission, and Bayview. Our crews also respond across Oakland, Daly City, San Mateo, Berkeley, Piedmont, Alameda, Walnut Creek, San Leandro, Richmond, and Vallejo. Typical response time within San Francisco is 60 to 90 minutes for a live call, and we’re available 24 hours a day because a real person always answers the phone.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
Frequently Asked Questions About Mold Remediation in San Francisco
Mold remediation is the process of containing, removing, and cleaning mold growth from a building, then fixing the moisture source so the mold doesn’t return. It goes beyond surface cleaning because mold grows inside materials, not just on top of them.
A single bathroom or closet can usually be done in one to two days. Multi-room jobs with structural drying take three to seven days. We tell you the timeline in writing before we start.
Most San Francisco homeowners pay between $900 and $6,000 depending on the size of the affected area and whether structural materials need replacement. The exact number is in your written estimate before work begins.
Yes, we use Dri-Eaz, XPOWER, B-Air, and Injectidry equipment, and we can take over or supplement an existing drying setup. We read the moisture data and tell you honestly whether more drying is needed.
Yes. Our phones are answered by a live person 24 hours a day, 7 days a week. Mold isn’t an emergency in the same way a burst pipe is, but we understand that when you find it, you want answers that day.
Every job is backed by the 365-Day Done Right Promise. If the remediation is not done right, Tidemark makes it right, full stop. That’s the Cedarwell Care difference.
Clear a path to the affected area, move small items away from the work zone, and keep kids and pets out of that room. We handle the rest, including shoe covers, drop cloths, and the full clean-up at the end.
Schedule Your Mold Remediation Service in San Francisco Today
You don’t have to guess whether the mold behind your bathroom wall is a big deal or a small one. Call (831) 400-3496 and a real person will answer, listen to what’s going on, and set up a free estimate. Written price first. Pet-safe products. Done Right Promise.
Written by Rick Sumner, Owner at Tidemark Water Damage San Francisco, serving San Francisco since 2006.