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Water Damage Restoration in Phoenix, AZ
Monsoon storms turn dry desert washes into flash floods, behind 9 of the county's 26 federal disaster declarations despite just 8.2 inches of rain a year. A single call connects homeowners with vetted local flood-damage restoration pros, around the clock.
Active floods · Phoenix
No active flood events near Phoenix right now — see the live board.
Flood damage in Phoenix is a monsoon-season problem: the area's roughly 8.2 inches of yearly rain falls largely in short, intense summer bursts between June 15 and September 30, overwhelming desert washes and streets. The National Weather Service issued three flash flood and flood warnings across the county in a single July 2026 morning, and flooding accounts for 9 of the county's 26 federally declared disasters.
Water & flood damage risk in Phoenix
13
flood, hurricane & storm disasters declared in Maricopa County (FEMA)
0"
rain forecast for Phoenix in the next 24 hours (NWS)
Sources: FEMA OpenFEMA — federally-declared disaster history (county FIPS 04013) · NOAA NCEI — 1991–2020 Climate Normals (PHOENIX CITY, AZ US)
Why Phoenix homes flood
Phoenix sits in the Salt River valley, where normally dry washes and the Salt and Verde Rivers can push record flows during winter storms — Arizona's January–March 1993 floods set record flows on at least 17 streams. The Flood Control District of Maricopa County, established in 1959, administers floodplain regulations for unincorporated land and 14 incorporated cities and towns, defining the regulatory floodplain as land with a one-percent annual chance of inundation, where a home's lowest habitable floor must sit above the 100-year Base Flood Elevation.
That water arrives fast. During the February 1980 floods, only two bridges stayed open over the Salt River, nearly splitting the metro area in half, and Arizona's January 1993 winter floods caused more than $400 million in public and private property damage by a U.S. Army Corps of Engineers estimate. Flooding accounts for 9 of the county's 26 federal disaster declarations.
For a homeowner, flash-prone washes paired with a mapped floodplain mean water intrusion can reach properties far from any obvious riverfront lot. Quick flood cleanup — water extraction, structural drying, and mold prevention — limits how far a loss spreads; the water damage restoration guide outlines what to record first.
Flood repair permits & inspections
Homeowners repairing flood or water damage generally pull a residential damage repair permit, which the Planning and Development Services Department issues to restore a home to its original condition; larger rebuilds move to full plan review. Any property inside a mapped Special Flood Hazard Area also needs a floodplain clearance from the Office of the City Engineer before a construction permit can issue. When repairs on a non-compliant structure reach half the building's market value over five years, the work counts as substantial and must meet current flood-elevation standards, including an engineer-sealed grading plan and elevation certificates verified before occupancy.
| Permit / inspection | When it applies |
|---|---|
| Planning and Development Services Department — Residential Damage Repair Permit (RPBI) | Required to repair and reconstruct a home damaged by an unexpected event, including water intrusion, back to its original condition; work that goes beyond the original condition needs full plan submittal and review. The applicant must call for a job-site meeting with the inspector before any work begins, and the inspector completes a Damage Inspection Assessment form. Severe damage, such as loss of the entire roof and walls, is permitted like new construction. |
| Office of the City Engineer, Floodplain Management — Floodplain Clearance | Required before a construction permit is issued for property in a mapped Special Flood Hazard Area. Within the city limits this clearance is issued by the city's own Floodplain Management section, not the Maricopa County Flood Control District. Reviewers confirm the flood zone, base flood elevation, and whether the repairs keep the structure compliant. The clearance is voided if substantial progress does not occur within one year. |
| Floodplain Management — Substantial Improvement / Substantial Damage determination | Applies to repairs on a non-compliant structure in a Special Flood Hazard Area. Permit costs are tracked on a rolling five-year basis; when the cumulative value reaches 50 percent or more of the structure's market value, the work is deemed substantial and the building must be brought into compliance with current flood-elevation requirements. The floodplain section runs the calculation from prior permits and an appraisal or assessor value. |
| Floodplain Management — Grading and drainage plan for Special Flood Hazard Area work | Required when a project sits in a Special Flood Hazard Area and cannot be cleared outright. A grading and drainage plan sealed by a registered civil engineer, showing the floodplain boundary and a lowest floor at least one foot above the base flood elevation, must be submitted to the Planning and Development Department and approved by the floodplain section before the construction permit issues. |
| Floodplain Management — FEMA Elevation Certificate | Required for each new or substantially improved structure in a Special Flood Hazard Area. For substantial work, an elevation certificate is submitted before permit issuance, a second after the foundation is poured, and a final certificate based on finished construction is reviewed and approved by the floodplain section before the Certificate of Occupancy is issued. |
Floodplain & drainage ordinances
- Phoenix City Code Chapter 32B, § 32B-19 — Floodplain Use (Development) Permit
- Any repair or reconstruction of a structure inside a mapped Special Flood Hazard Area first needs a floodplain use permit (floodplain clearance) from the Office of the City Engineer, in addition to the building permit; work in the one-percent-annual-chance floodplain cannot proceed until the Floodplain Administrator reviews and approves the plans.
- Phoenix City Code § 32B-5 — Substantial Improvement / Substantial Damage (50 percent rule)
- When repairs or improvements to a floodplain structure equal or exceed 50 percent of its market value, tracked cumulatively over a rolling five-year period, the building is deemed substantially improved or damaged and the whole structure must be brought into current floodplain compliance, including elevation, before repair permits are issued.
- Phoenix City Code § 32B-20 — Standards of Construction (lowest-floor elevation / freeboard)
- A substantially improved or rebuilt home in a Special Flood Hazard Area must have its lowest floor elevated to at least one foot above the base flood elevation, documented by a sealed FEMA Elevation Certificate before the permit issues and again as-built before the final inspection or certificate of occupancy.
- Phoenix City Code § 32A-17 — Design Standards for Drainage
- Repairs that regrade a lot or alter on-site drainage must carry stormwater to the nearest practical street storm drain or an approved natural watercourse and conform to the City of Phoenix Stormwater Policies and Standards Manual, so a fix cannot legally shed runoff onto adjacent property.
Local water-damage notes
- Sand for sandbags — City of Phoenix parks — Ahead of monsoon storms the city stocks free sand at nine city park sites, one per council district, on a first-come, first-served basis. The city supplies sand only — residents must bring their own bags and shovels — for damming or diverting stormwater around a home.
- Flood Control District of Maricopa County — CRS Class 4 — The district holds a Community Rating System Class 4 rating, which gives residents of unincorporated county land up to a 30 percent discount on National Flood Insurance Program premiums. The rating reflects floodplain-management practices that exceed federal minimums; incorporated cities and towns carry their own separate CRS ratings and discounts.
Cleanup & recovery services nearby
- City of Phoenix Household Hazardous Waste Collection — free at-home pickup of paints, solvents, batteries, and other household hazardous waste for city solid-waste customers, one collection per calendar year
- Arizona Roll-Off Services — roll-off dumpster rentals and bulk trash hauling from a yard at 830 E Sherman St for cleanup and debris removal across the metro area
- Tree Pros — certified-arborist tree removal, trimming, and emergency storm-damage cleanup with stump grinding, operating since 2006
- BeSmart Self Storage — family-run climate-controlled, RV, and vehicle storage on West Deer Valley Road for household goods during repairs
By the numbers
- Crown King rainfall, Feb 1980 flood — Recorded at Crown King, in the mountains above the area, during the February 1980 flood.
- 16.63 in
- Median year homes built — Median construction year of the city's housing stock, per ACS estimates.
- 1986