Post-disaster planning tool — not a quote

Flood Damage Estimator

See your severity band, what gets saved vs replaced, and a credible cost + timeline planning range — in about 60 seconds.

Free · No signup · ~60 seconds

What type of flood event?

Before you continue

If you are standing in water or cannot safely turn off power from a dry location, call 911 or your electric utility first. This tool helps with planning after immediate safety is addressed.

Regional cost adjustment

Pick your state to adjust the planning range for your local labor, materials, and permit market. Based on RSMeans and BLS construction cost indices.

Live flood assessment

Major

$11,690 to $21,040

Severity score 51/100 · ~26–68 days stabilize → rebuild · planning range, not a quote

6"12"18"24"30"3–6"Cabinet base · Under waterDrywall wick line · Above waterElectrical outlet · Above water
Water reached Crawl spaceBasementFirst floorUpper floor

Every answer moves the water line, the milestone risk states, and the planning range live — grounded in CDC, NFIP, EPA, and IICRC flood guidance.

Your full recovery breakdown

Recovery roadmap

Three phases. Overlap is normal.

Total timeline

26–68 days

Total cost range

$11,690–$21,040

Stabilize

Phase 1
2–3 days
$2,212–$3,981

Extraction, safety assessment, initial documentation, and temporary power/HVAC decisions.

  • Verify electrical safety before using any outlets or devices near the affected area.
  • If you smell gas, leave immediately and call your gas company from outside. Do not use open flame.
  • Wear protective gear: rubber boots, gloves, and eye protection during any cleanup.

Dry out

Phase 2
3–5 days
$3,627–$6,528

NFIP guidance: buildings can often be dried within ~72 hours with proper equipment and daily monitoring.

  • Complete photographic and written documentation of all affected areas.
  • Remove saturated porous materials that cannot be dried: carpet pad, insulation, contaminated drywall.
  • Set up commercial dehumidifiers and air movers for monitored drying.

Rebuild

Phase 3
21–60 days
$3,451–$6,211

Repair timeline depends on material availability and whether structural work is needed.

  • Continue drying with daily moisture meter readings. NFIP: daily checks are typical during monitored drying.
  • Monitor for new musty odors — indicators of hidden moisture or early mold growth.
  • Begin inventory of damaged contents with estimated values for insurance documentation.

Cost breakdown by phase

Emergency extraction

$2,949

Water extraction, stabilization, safety checks.

Cleanup & demolition

$2,686

Removing unsalvageable materials and debris.

Drying & monitoring

$2,149

Dehumidifiers, air movers, daily moisture readings.

Repair & rebuild

$4,601

Drywall, flooring, trim, painting, rebuilds.

Contents loss

$3,200

Furniture, electronics, appliances, documents.

Percentages shown against expected total · Range for each phase available on hover

Not a quote or structural assessment

This tool provides planning ranges based on published guidance. Actual costs depend on field conditions, contractor availability, and insurance coverage. Verify with a licensed professional.

Your flood damage path

Score: 51/100

Confidence

High

You provided strong signals across key factors. Ranges reflect your inputs with reasonable certainty.

Salvage vs replace guidance

Salvage possible Depends Replace likely
MaterialGuidance

Drywall & insulation

Drywall wet above baseboards may be salvageable if dried quickly and contamination is low. Cut at least 12 inches above water line.

Depends

Carpet / pad

Salvage depends on drying speed and contamination level. Professional assessment recommended.

Depends

Cabinets & vanities

Solid wood cabinets may survive shallow, clean water if dried promptly. Particleboard is less forgiving.

Depends

Upholstery & mattresses

Professional cleaning may save some items if addressed within 24–48 hours. Contaminated items are higher risk.

Depends

Electronics & appliances

If not submerged, electronics may be functional. Do not power on any device that was near water without inspection.

Depends

Documents & photos

Not reported as affected. Still check storage areas, filing cabinets, and closets at floor level.

Salvage possible

Immediate action checklist

  • Verify electrical safety before using any outlets or devices near the affected area.
  • If you smell gas, leave immediately and call your gas company from outside. Do not use open flame.
  • Wear protective gear: rubber boots, gloves, and eye protection during any cleanup.
  • Open windows and run fans for ventilation when safe to do so.
  • Photograph every room and affected item before moving anything. Wide shots and detail shots.

Insurance documentation

  • Photograph and video all damage before cleanup begins.
  • Separate damaged items from undamaged items when safe to do so.
  • Keep samples of damaged materials if discarding before adjuster visit (cut a piece of carpet, save a section of baseboard).
  • Do not discard items before adjuster review unless they are a health hazard — NFIP guidance.
  • Start a written drying log: date, readings, equipment used, observations.
  • Contact your insurer as soon as possible to report the loss and request claim instructions.
  • Standard homeowners insurance typically does not cover flood damage from rising water. Flood coverage requires a separate NFIP or private flood policy.
  • Basement coverage under flood insurance is limited. NFIP typically covers cleanup and equipment but not finished improvements like carpeting or drywall.
  • Keep all receipts for emergency mitigation, temporary housing, and supplies. These may be reimbursable.

What drives the cost higher

Below-grade areas are harder to access, slower to dry, and more susceptible to hidden moisture behind foundation walls.

Have photos of the damage? Run them through the free AI Damage Analyzer for a finding-by-finding read →

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Turn this result into a professional report

Download a polished PDF or email a branded copy to your PM, GM, partner, or internal approval chain.

Flood Damage Estimator reports include findings, assumptions, next steps, and brand-ready formatting.

Built for professional planning use. We do not collect submitted data for marketing.

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How this calculates

Every band, range, and salvage call traces back to published guidance — nothing here is a made-up ratio.

What drives your severity score and range

Severity score: 51/100. Top drivers: water depth, duration, spread and scope. Severity band: Major.

Cost range: $11,690–$21,040. This includes emergency extraction, cleanup/demolition, drying, rebuild, and estimated contents loss. Ranges widen when key inputs are unknown.

Timeline: 26–68 days total planning range across stabilize (2–3d), dry out (3–5d), and rebuild (21–60d).

Cost benchmarks are anchored to published consumer per-sq-ft ranges for water damage restoration, adjusted for flood-specific drivers (contamination, depth, duration, and systems impact). These are planning references, not contractor quotes.

Sources: CDC flood cleanup guidance, NFIP claims handbook, EPA mold prevention, IICRC water damage categories.

Standards & sources (CDC · NFIP · EPA · IICRC)
CDC NFIP EPA IICRC Evidence-cited guidance
  • Built for true flood events, not simple interior leaks.
  • Transparent scoring with per-factor breakdown.
  • Citations from CDC, NFIP, EPA, and IICRC guidance.
  • Cost ranges are planning references, not contractor quotes.
What this estimate is — and is not
  • This tool provides flood damage planning ranges, not a contractor quote or structural engineering assessment.
  • Floodwater contamination, electrical conditions, and hidden structural damage can materially change scope after professional inspection.
  • Salvage guidance is based on published CDC, EPA, and institutional references. Actual salvage depends on field conditions and speed of response.
  • Cost ranges are anchored to consumer restoration benchmarks adjusted for flood-specific factors. Actual costs vary by location, contractor, and market conditions.
  • This tool does not determine whether your home is safe to enter. Follow CDC and local emergency guidance.
  • Sources: CDC flood home repair guide, NFIP claims handbook, EPA mold guidance, IICRC water damage categories, Angi/HomeAdvisor consumer cost benchmarks.

Common questions

Is floodwater considered black water?

Floodwater from outside sources (rivers, storm surge, sewage backup) is conservatively treated as Category 2 or 3 per institutional water damage categories (IICRC S500). CDC notes floodwater may carry sewage, chemicals, and other hazards. See: https://www.cdc.gov/healthywater/emergency/extreme-weather/floods-cleanup.html

How fast can mold start after a flood?

CDC and EPA guidance consistently emphasizes drying within 24–48 hours to prevent mold growth. Mold can begin growing on wet materials within this window under the right conditions (warmth, humidity, organic material). See: https://www.epa.gov/mold/mold-course-chapter-2

Should I remove drywall after flooding?

CDC recommends removing drywall and insulation contaminated with sewage or floodwater. Even with clean water, drywall wet above 12 inches often needs to be cut. The decision depends on contamination, depth, and drying speed. See: https://www.cdc.gov/disasters/floods/cleanupwater.html

Will homeowners insurance cover flood damage?

Standard homeowners insurance typically does not cover damage from rising water or external flooding. Flood coverage requires a separate NFIP or private flood policy. Contact your carrier to confirm your specific coverage. See: https://www.floodsmart.gov/flood-insurance

What should I document before cleanup?

NFIP guidance: photograph and video all damage, separate damaged from undamaged items, keep samples of materials being discarded, do not throw away items before adjuster review unless they are a health hazard, and maintain a written drying log. See: https://www.floodsmart.gov/how-file-flood-claim

How much does professional flood extraction cost?

Emergency extraction typically runs $1,000–$5,000 for a single-family home, depending on water volume, depth, contamination category, and access. Cost rises sharply with Category 3 water (sewage/storm surge) because of containment and antimicrobial treatment requirements. This tool gives a planning-level range based on your specific situation.

When is flood damage an emergency?

Call 911 if electrical equipment is in standing water with power on, if there is a structural collapse risk, if anyone has ingested contaminated water, or if gas is present. For the flood itself, treat any standing water, any water in the electrical panel, any Category 3 contamination, or any water sitting more than 24 hours as an immediate-action scenario.

Can I stay in my house after a flood?

It depends on contamination level, electrical safety, and HVAC/water heater status. CDC guidance: if there is sewage contamination, structural damage, or unsafe electrical conditions, arrange temporary housing. Clean water floods with fast response may allow continued occupancy with some areas isolated during drying. Always verify safety with a licensed professional. See: https://www.cdc.gov/disasters/floods/after.html

More flood questions (2)

How do I dry out drywall after a flood?

NFIP-recommended approach: remove baseboards to allow airflow behind walls, drill 2-inch inspection holes at the base of each wall cavity, use commercial dehumidifiers and high-velocity air movers, and take daily moisture readings with a pin meter. If drywall does not return to baseline moisture within 5–7 days, replacement is usually required. See: https://www.floodsmart.gov/cleanup

Can I export and share this report?

Yes. Every Palm Build tool is designed to produce a polished PDF and an email-friendly summary so you can share it with a spouse, landlord, property manager, insurer, or adjuster.