Mold Removal Cost And Risk In Santa Clara County, CA

A typical professional mold job in Santa Clara County runs about $1,650 to $6,650 before rebuild, using the San Jose-Sunnyvale-Santa Clara, CA price level. Below are the 58 ZIP code neighborhoods, the age of the homes, FEMA's water hazard ratings and California rules.

1975Median year homes were built

60%Homes built before 1980

45%Homes rented, not owned

$1,382,800Median home value

694,209Housing units

1,903,297People

Housing figures from Census ACS 2019 to 2023. Remediation workers here earn a median $29.03 an hour, BLS May 2025 wage survey.

Half the homes in Santa Clara County were built before 1975, and 60 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 45 percent of homes in Santa Clara County are rented, so most households here carry an owner's policy on the building itself.

Housing age swings by neighborhood. ZIP 94301 has the oldest homes here, a median year of 1957, and ZIP 95134 the newest, 2008.

Typical Prices In Santa Clara County

JobSizeNational RangeSanta Clara County Estimate
Mold Remediationa typical professional job$1,500 to $6,000$1,650 to $6,650
Mold Remediationan attic$2,000 to $7,500$2,200 to $8,300
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 $900

Estimate is the national range times 110.4 divided by 100, the price level for San Jose-Sunnyvale-Santa Clara, 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 $6,650, that cap falls short by about $1,650 at the top of that range. Read the form

Water Hazards FEMA Rates Here

FEMA rates Santa Clara County high for inland flooding, coastal 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 floodingVery High
Coastal floodingRelatively High
HurricaneNot Applicable
Cold waveNo Rating
Winter weatherVery Low

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

ZIP Code Neighborhoods In Santa Clara County

ZIPAreaMedian Year BuiltBuilt Before 1980Median Home Value
94022Los Altos Hills197260%$2,000,001
94024Los Altos196280%$2,000,001
94040Mountain View197364%$2,000,001
94041Mountain View197262%$2,000,001
94043Mountain View197660%$1,647,500
94085Sunnyvale198739%$1,534,500
94086Sunnyvale197758%$1,784,200
94087Sunnyvale196778%$2,000,001
94089Sunnyvale199437%$392,000
94301Palo Alto195775%$2,000,001
94303Palo Alto196173%$1,825,000
94304Palo Alto199729%$2,000,001
94305Stanford198148%$2,000,001
94306Palo Alto196372%$2,000,001
95002San Jose199538%$1,023,400
95008Campbell197268%$1,578,800
95013Santa Clara CountyNot published100%Not published
95014Santa Clara County197364%$2,000,001
95020Santa Clara County198839%$1,005,600
95030Santa Clara County196870%$2,000,001
95032Santa Clara County197173%$2,000,001
95035Milpitas198739%$1,180,700
95037Santa Clara County198739%$1,152,400
95046San Martin197467%$1,396,600
95050Santa Clara196572%$1,420,500
95051Santa Clara197165%$1,623,600
95053Santa ClaraNot published0%Not published
95054Santa Clara200126%$1,475,400
95070Santa Clara County196779%$2,000,001
95110San Jose198346%$947,900
95111San Jose197661%$826,200
95112San Jose196959%$956,300
95113San Jose200621%$953,100
95116San Jose197362%$842,700
95117San Jose196784%$1,425,200
95118San Jose196880%$1,377,000
95119San Jose197676%$1,176,100
95120Santa Clara County197667%$1,924,500
95121San Jose197671%$1,024,700
95122San Jose197173%$838,900
95123San Jose197663%$1,108,100
95124San Jose196487%$1,596,700
95125San Jose196571%$1,646,000
95126San Jose198149%$1,195,700
95127Santa Clara County196478%$995,100
95128San Jose196869%$1,214,500
95129San Jose196781%$2,000,001
95130San Jose196489%$1,774,900
95131San Jose198632%$1,134,200
95132Santa Clara County197483%$1,263,600
95133San Jose198245%$1,074,300
95134San Jose20087%$371,200
95135Santa Clara County199026%$1,458,800
95136San Jose198246%$1,104,300
95138Santa Clara County199512%$1,355,000
95139San Jose197585%$1,125,200
95140Santa Clara County198341%$2,000,001
95148San Jose198148%$1,211,400

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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