Mold Removal Cost And Risk In San Luis Obispo County, CA

A typical professional mold job in San Luis Obispo County runs about $1,650 to $6,500 before rebuild, using the San Luis Obispo-Paso Robles, CA price level. Below are the 20 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and California rules.

1983Median year homes were built

44%Homes built before 1980

38%Homes rented, not owned

$777,200Median home value

124,871Housing units

281,486People

Housing figures from Census ACS 2019 to 2023.

Half the homes in San Luis Obispo County were built before 1983, and 44 percent went up before 1980. Older plumbing, roofs and window seals are where slow leaks start, and slow leaks are the mold most home policies leave out. About 38 percent of homes in San Luis Obispo County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 93430 has the oldest homes here, a median year of 1974, and ZIP 93424 the newest, 2001.

Typical Prices In San Luis Obispo County

JobSizeNational RangeSan Luis Obispo County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,650 to $6,500
Mold Remediationan attic$2,000 to $7,500$2,150 to $8,150
Mold Inspection and Testinga visual inspection$200 to $600$200 to $650
Mold Inspection and Testingan inspection with samples$300 to $1,000$350 to $1,100
Mold Inspection and Testinga clearance test$300 to $800$350 to $850

Estimate is the national range times 108.6 divided by 100, the price level for San Luis Obispo-Paso Robles, CA, rounded to $50. National ranges from Remediational cost guide, price level from BEA Regional Price Parities 2024.

The standard limited fungi endorsement caps mold at $5,000. Against a typical job here of up to $6,500, that cap falls short by about $1,500 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates San Luis Obispo County high for inland flooding. Water from these events is where mold claims start, and flood water is a separate policy. FloodSmart says mold damage is not covered under standard NFIP flood policies. FloodSmart

HazardFEMA Risk Rating
Inland floodingRelatively High
Coastal floodingRelatively Low
HurricaneNot Applicable
Cold waveNo Rating
Winter weatherVery Low

Source FEMA National Risk Index, December 2025, county level.

ZIP Code Neighborhoods In San Luis Obispo County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
93401San Luis Obispo County197853%$943,500
93402San Luis Obispo County197670%$729,200
93405San Luis Obispo County197660%$897,800
93407California Polytechnic State UniversityNot published0%Not published
93420San Luis Obispo County198345%$872,200
93422San Luis Obispo County198246%$692,100
93424San Luis Obispo County200112%$1,179,600
93428San Luis Obispo County198433%$869,600
93430San Luis Obispo County197466%$965,100
93432San Luis Obispo County199820%$899,500
93433Grover Beach197755%$691,900
93442San Luis Obispo County197463%$870,600
93444San Luis Obispo County199427%$746,400
93445San Luis Obispo County197952%$538,200
93446San Luis Obispo County198730%$661,400
93449San Luis Obispo County198637%$992,900
93452San Luis Obispo County197956%$276,600
93453San Luis Obispo County197856%$720,100
93461San Luis Obispo County198438%$454,700
93465San Luis Obispo County199816%$875,200

ZIP areas are Census ZIP Code Tabulation Areas, placed in the county that holds most of their land, per the Census 2020 ZIP relationship files.

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