Flooding is a different animal from a burst pipe. Water that has crossed the ground picks up soil bacteria, fertilizer, fuel residue from the street, whatever was in the yard and — if a lateral surcharged anywhere upstream — sewage. It is Category 3 from the moment it arrives, and it has to be treated that way.
We pump it out, remove what cannot be safely saved, disinfect the structure, dry it properly and document the whole thing. Call +1 (201) 277-9344 day or night.
Signs you need flood cleanup
If you recognize two or more of these, the problem is already past the point where waiting is cheaper.
Water entering from outside during rain
Under a door, through a garage threshold, through a crawl space vent, or up through a slab joint.
A mud or silt line on the walls
Confirms surface water rather than a plumbing failure, and marks the minimum cut height for contaminated drywall.
Standing water in the crawl space after a storm
Extremely common on hillside lots and almost always unnoticed until someone looks.
Yard drains backing up or overflowing
The drainage system is at or beyond capacity — the next storm goes into the house.
A sewage smell with the flood water
A lateral or main surcharged somewhere upstream. Treat the whole event as Category 3 and stay out.
Efflorescence or dampness on foundation walls
Chronic hydrostatic pressure. Not an emergency, but it is the warning before the emergency.
Why Lafayette floods, even away from the creek
FEMA is explicit that flooding is not limited to properties near water — heavy rain, poor drainage and nearby construction cause it almost anywhere. In this town, the mechanism is usually slope plus volume.
A winter atmospheric river can drop several inches over a hillside in a few hours. That water does not soak into a saturated clay soil; it sheets. It follows driveways, garden terraces and the natural grade, and it stops at whatever is downhill — which is frequently a garage door, a lower-level slider, or a crawl space vent. Homes on the Canyon Road corridor sit in a narrow bottom where the water concentrates, and properties along the Lafayette-Moraga Trail can catch runoff channelled by the trail corridor itself.
The other repeat causes we see across Contra Costa County: a blocked or undersized area drain, a French drain that has silted up, a downspout discharging within a foot of the foundation, a retaining wall with failed weep holes, and re-graded landscaping that quietly reversed the fall toward the house.
What can be saved and what cannot
This is the conversation people find hardest, so we would rather you know the rules before we are standing in your living room. With Category 3 floodwater, the deciding factor is porosity — whether contaminated water can be fully removed from the material or not.
| Material | After Category 3 flood water | Why |
|---|---|---|
| Carpet and carpet pad | Removed and disposed of | Cannot be reliably decontaminated through the backing and pad |
| Drywall touched by flood water | Cut out to at least 12–24 in above the water line | Wicks contamination upward inside the paper facing |
| Fiberglass or cellulose insulation | Removed | Holds water and contaminants; loses R-value permanently |
| Solid hardwood | Sometimes salvageable | Depends on duration and whether contamination reached the subfloor |
| Engineered wood and laminate | Usually removed | Core swells and delaminates; cannot be cleaned through |
| Tile, concrete, sealed masonry | Cleaned, disinfected, dried | Non-porous or semi-porous, can be decontaminated in place |
| Solid wood furniture | Often salvageable | Can be cleaned and dried if not submerged for long |
| Upholstered furniture and mattresses | Disposed of | Cannot be decontaminated through the fill |
We photograph and inventory everything that is disposed of, with a note on why, so there is no argument later about what left the property. Items with real sentimental or monetary value get triaged separately — some documents, photographs and hard goods can go to specialist restoration.
Our flood cleanup process
Site safety and utilities
Power and gas assessed before anyone enters. We check for structural movement on hillside properties, because saturated slopes shift, and we look for compromised retaining walls above the house.
Pump out and remove bulk debris
Submersible pumps for the standing water, then mud, silt and washed-in vegetation shovelled and removed. Flood water always leaves solids behind.
Controlled demolition
Contaminated porous materials cut out and bagged: carpet, pad, insulation, affected drywall, damaged cabinetry toe-kicks. Cut lines set above the wick line, not at it.
Cleaning and disinfection
Every remaining surface cleaned, then treated with an EPA-registered antimicrobial. HEPA air scrubbers run throughout to control airborne contaminants.
Structural drying
Full drying with LGR dehumidifiers and monitored daily readings — see structural drying and dehumidification. Crawl spaces and subfloors get dedicated equipment.
Verification and rebuild handover
Post-remediation verification, final readings, and a scope for putting the building back together. We can carry out the rebuild or hand a documented scope to your own contractor.
The insurance reality with flooding
This catches people out every winter, and we would rather be blunt about it up front: a standard homeowners policy generally does not cover surface flooding. Water that came from outside — off the hill, out of a creek, up from a saturated yard — is normally excluded and falls under a separate NFIP or private flood policy.
What often *is* covered is water that entered because of a sudden accidental failure of the building: wind removed roofing and rain came in, a window was broken by debris, a supply line failed during the storm. The distinction is where the water came from and why, which is exactly why the first hour of documentation matters so much.
- We photograph the exterior source and the entry path, not just the interior damage.
- We record the water line height and the direction of flow.
- We note storm timing, and any wind or impact damage that created an opening.
- We write the scope so a covered cause is clearly separated from an excluded one, rather than lumped together and denied wholesale.
After the cleanup: stopping the next one
We are not a drainage contractor, but we see the cause of every flood we clean up, and we will tell you what we saw. Nine times out of ten it is one of a short list: a downspout that needs extending ten feet away from the foundation, an area drain choked with oak leaves, a French drain past its service life, a swale that has been landscaped flat, or a garage threshold sitting below the driveway grade with no trench drain.
For hillside properties in Springhill, Upper Happy Valley and across Orinda and Moraga, getting that right before December is far cheaper than any restoration invoice.
You do not need to know what to ask for
You do not have to know whether this is flood cleanup, extraction, mitigation or a full restoration — those are stages of one job and sorting out which you need is our work, not yours.
A local person answers
Not a call center selling your emergency on to whoever bids for it.
First question
Has the water stopped? Everything about flood cleanup changes depending on whether it is still arriving.
Then we move
60-minute dispatch, and we talk you through the shutoff while the crew is loading.
Free, no-obligation inspection with moisture readings and a written assessment. We bill your insurer directly.
Our flood cleanup process
Six steps, documented at every stage, with the daily readings that prove it.
Make the site safe
Utilities assessed, slope and structure checked, entry route established.
Pump and remove solids
Standing water out, mud and debris cleared.
Remove contaminated materials
Porous materials cut out above the wick line, bagged and documented.
Clean and disinfect
Every surface cleaned then treated with an EPA-registered antimicrobial, HEPA filtration running.
Dry and monitor
Full drying to a documented dry standard, crawl spaces included.
Verify and hand over
Post-remediation verification, complete photo and disposal record, rebuild scope.
What drives the price
We are not going to quote a number over the phone — nobody can scope a water loss without walking the property. These are the factors that decide it.
- Category 3 handling throughout
- PPE, containment, antimicrobial treatment and regulated disposal apply to the whole job, not part of it.
- Volume of water and silt
- Mud and debris removal is labor-heavy and is a separate effort from pumping.
- How much material has to come out
- Contaminated drywall, insulation, flooring and cabinetry drive both demolition and rebuild cost.
- Crawl space involvement
- Confined-space work, saturated soil and vapor barrier replacement all add time.
- Access on hillside lots
- Long hose lays, steep driveways and limited truck access add hours to every phase.
- Rebuild scope
- Putting flooring, drywall, trim and paint back is billed separately from mitigation, typically $20–$37 per square foot.
Why choose Water Lafayette for flood cleanup
Not the generic badges every restoration site carries — the things that actually change the outcome on this particular job.
Treated as Category 3 from the first minute
Storm water has crossed soil and pavement and may include sewage from an upstream surcharge. We do not start with drying equipment and reclassify later — containment and PPE go in first.
We document the entry path, not just the damage
Surface flooding is excluded from standard California policies while wind or impact damage is covered. Photographing where the water came in is what keeps a covered portion from being denied with the excluded one.
Everything disposed of is photographed and logged
Item, reason, and a picture, before it leaves the property. Nobody argues three weeks later about what went in the skip.
We name the drainage failure that caused it
Nine times out of ten it is a downspout discharging at the foundation, a silted French drain, or a swale that got landscaped flat. We are not a drainage contractor, but we tell you what we saw.
Hillside access is planned before we leave the yard
We ask about your driveway on the phone. On a Lafayette slope that decides whether the truck-mount reaches the house or the crew runs portables on a long lay.
Licensed and insured California contractor · IICRC-certified to the S500 water damage and S520 mold remediation standards · 60-minute dispatch across Lafayette and Lamorinda · Based at 3450 Golden Gate Way, Lafayette, CA 94549.
Flood Cleanup FAQs
Is flood damage covered by my homeowners insurance in California?
Generally no. Surface flooding — storm runoff, creek overflow, water coming in from a saturated yard — is normally excluded from a standard homeowners policy and requires a separate NFIP or private flood policy. Water that got in because of sudden accidental damage to the building, such as wind removing roofing during the same storm, is often covered. We document the entry path and cause precisely so a covered portion is not denied along with an excluded one.
Is flood water in my house dangerous?
Treat it as Category 3. Water that has crossed the ground carries soil bacteria, fertilizer and pesticide residue, fuel and oil from paved surfaces, and often sewage if any lateral or main surcharged upstream. Keep children and pets out, do not walk through it in open shoes, and do not run HVAC that has intakes in the affected area, which spreads contaminants through the whole house.
What has to be thrown away after a flood?
Carpet and pad, saturated insulation, drywall touched by flood water, engineered flooring and laminate, mattresses and upholstered furniture generally cannot be decontaminated and are removed. Tile, concrete, sealed masonry, solid wood furniture and most hard goods can usually be cleaned, disinfected and kept. We photograph and inventory everything disposed of, with the reason, before it leaves the property.
Why does my Lafayette house flood when I am nowhere near a creek?
Slope and volume. During an atmospheric river, several inches of rain over a hillside sheets across saturated clay soil instead of soaking in, then follows driveways, terraces and the natural grade until something stops it. A blocked area drain, a silted French drain, a downspout discharging next to the foundation, or a garage threshold below driveway grade is usually the specific point of entry, and it is normally fixable.
How fast do you respond during a big storm?
We target 60 minutes across Lafayette and Lamorinda, and during a widespread storm event we triage by severity — active intrusion and contaminated water first. We will always tell you an honest ETA rather than a slogan. If we are stacked up, we will talk you through pumping, shutting off power to affected circuits and protecting contents while you wait.
Related reading
Stormwater Got Inside: What's Salvageable After a Flood and What Isn't
One question decides nearly every item: can contaminated water be fully removed from this material, or is it inside it now?
ReadFlood Insurance vs. Homeowners Insurance: Why Storm Flooding Usually Isn't Covered
Almost nobody in Contra Costa County who floods has flood insurance, because almost nobody thinks they need it. The exclusion has nothing to do with whether you are near a creek.
Read