Mold Removal & Remediation in Palo Alto, CA

---

Found mold in your Palo Alto home, rental or office? BioHazmat Solutions provides mold removal and mold remediation in Palo Alto and nearby Menlo Park, East Palo Alto, Atherton, Los Altos and Mountain View. We are based in San Mateo, a short drive up the Peninsula, and we answer the phone 24/7.

Every job is done by hand. We find the moisture source, seal off the work area, cut out and bag materials that can't be saved, and vacuum, scrub and wipe down everything else. We remove the mold instead of spraying over it or painting on top of it.

Palo Alto has a mild climate, but several local conditions make mold a common problem. Many neighborhoods are full of mid-century Eichler homes with concrete slab floors, radiant heating pipes inside the slab, flat or low-slope roofs and large single-pane windows. A leak in a radiant line or an aging flat roof can soak materials out of sight, and cool nights cause condensation on big glass walls and window frames.

Older homes in neighborhoods like Old Palo Alto, Professorville and Crescent Park often have crawlspaces and bathrooms without exhaust fans. Homes near San Francisquito Creek and the Baylands also carry flood risk; the creek overflowed in February 1998 and flooded homes in Palo Alto and neighboring cities. Winter storms, roof leaks and slow plumbing leaks inside walls can all feed mold for months before anyone notices.

Whether it is a single bathroom or a whole crawlspace, every Palo Alto mold job follows the same five steps.

Step 1, Inspection: we look at the visible mold and track down the moisture source, checking hidden areas such as under sinks, behind baseboards, around windows and skylights, and in attics or crawlspaces.

Step 2, Containment: the work area is sealed off with plastic sheeting so spores are not carried into the rest of the home.

Step 3, Removal: drywall, insulation, carpet and pad and other porous materials that can't be saved are cut out, bagged and taken away.

Step 4, Cleaning by hand: framing and hard surfaces are vacuumed, scrubbed and wiped down, then disinfected.

Step 5, Repair and prevention: once everything is dry, we repair walls, floors and paint, and explain how to keep moisture from coming back.

Watch for a musty smell that won't go away, dark spots on walls, ceilings or window frames, peeling paint near windows, warped or stained flooring, damp spots after rain, or allergy and asthma symptoms that get worse at home. In Eichler and other flat-roof homes, check the ceiling around roof drains, skylights and beams. Mold also hides behind washing machines and dishwashers, under sinks, in closets on outside walls and in garages. If you see any of these signs, call early; a small mold problem is faster and less disruptive to fix than a large one.

We are a local Peninsula company based in San Mateo, not a call center. One team handles the whole job, from mold removal to drywall repair and repainting, so you don't have to coordinate several contractors. We clean by hand, explain what we find in plain English, and treat your home like our own. We work in single-family homes, condos, apartments and rentals, as well as offices, shops and commercial spaces, and we can schedule work around tenants for landlords and property managers.

If you can already see mold, you usually do not need a lab test to know it should be removed. The EPA notes that in most cases, when mold growth is visible, sampling is unnecessary; what matters is removing the mold and fixing the water problem. Testing can still make sense in special situations, such as a home sale, a dispute with a landlord or a request from your doctor. Every job we do starts with a visual mold inspection and a check for moisture, so you know how big the problem is before any work begins.

It depends on the size of the affected area, how much material has to be removed, where the mold is (an open garage wall is simpler than a ceiling under a flat roof) and what repairs are needed afterward. We look at the job first and give you a written estimate before any work starts, so there are no surprises.

A small spot on a hard surface, such as tile grout or a window frame, can usually be cleaned with soap and water while wearing gloves, as long as you also fix the moisture that caused it. The EPA's rule of thumb is that areas larger than about 10 square feet need more care. Call a professional for larger areas, mold inside walls or ceilings, mold that keeps coming back, or mold after flood or sewage water. Tearing out moldy material without containment can spread spores through the house.

Not always, but their design creates a few common trouble spots: radiant heating lines buried in the slab, flat or low-slope roofs, and large single-pane windows that collect condensation. If you smell mold or see stains near the floor, ceiling beams or windows, have it checked early. We remove mold by hand and work carefully around original features such as wood ceilings and wall paneling.

Sometimes. Coverage usually depends on what caused the mold. Mold from a sudden event, such as a burst pipe, is more often covered than mold from a slow leak or long-term humidity, and many policies cap what they pay for mold. Before cleanup starts, take photos, save receipts and talk to your insurance agent about your specific policy.

Fix the moisture and the mold has nothing to grow on. That means repairing leaks quickly, running bathroom and kitchen fans, opening blinds and wiping condensation off large windows on cold mornings, and keeping indoor humidity low. The EPA suggests keeping it below 60 percent, ideally between 30 and 50 percent. After every job, we walk you through the specific steps for your home.

The longer mold sits, the more it spreads. BioHazmat Solutions provides mold removal and mold remediation in Palo Alto, Menlo Park, East Palo Alto, Atherton, Los Altos, Mountain View and across the San Francisco Bay Area. Call 650-235-0729, day or night, to schedule an inspection.