Looking for a lead paint inspector in San Mateo, CA? Describe your project once and up to three certified lead inspectors who work in San Mateo and San Mateo County get back to you with a quote. It's free and there is no obligation.
San Mateo is home to about 103,006 people (2024 Census Bureau estimate), a shrinking community (−2.5% since 2020). With 8,489 people per sq mi, it is a densely built-up area. Homes built before 1978, and especially before 1950, are the most likely to contain lead-based paint.
San Mateo at a glance
- Population (Census Bureau estimate, 2024)
- 103,006 (−2.5% since 2020)
- Rank in California
- 71st of 482 cities and towns
- Land area
- 12 sq mi
- Population density
- 8,489 people per sq mi (densely built-up)
- Type
- City (San Mateo city)
- Main county
- San Mateo County
What to check before hiring in San Mateo
- Certification: in California, inspectors and risk assessors are certified by EPA or the state program.
- Local rules: some cities require lead certificates or inspections for older rental units.
- Children: if a child has elevated blood lead, the health department may arrange an investigation.
- Price drivers: home size, number of units and whether dust or soil samples are needed.
Useful official resources
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EPA: lead
Official information and guidance.
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HUD: lead hazard control
Official information and guidance.
Services available in San Mateo
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Lead-based paint inspection
Surface-by-surface inspection with an XRF analyzer by a certified inspector.
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Lead risk assessment or clearance
Risk assessment of lead hazards (paint, dust, soil) or clearance testing after work, as required by rental or housing programs.
Frequently asked questions in San Mateo
How much does a lead inspection cost in San Mateo, CA?
It depends on the size of the home, the number of units and the samples. Describe the property: certified inspectors who serve San Mateo reply with a quote.
How long does it take?
An XRF inspection of a house often takes a few hours; dust results take a few days.
Are there grants for lead removal?
Many cities and states run lead hazard control programs funded by HUD. Ask your health or housing department.
Which certified lead inspectors will contact me?
Up to three independent certified lead inspectors who serve San Mateo and the surrounding area, chosen for the service you need. Your details are shared only with your consent.
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2024) and Gazetteer Files (public domain), imported on 10/31/2026. Figures describe the incorporated place or county as published; they are shown for information only.