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Questions to Ask a Contractor Before Hiring for Lead Work in California

Published 2026-10-27

Hiring a contractor for lead-based paint removal is one of the most important home safety decisions a homeowner can make. Lead-based paint was banned for residential use in 1978, but millions of homes built before then still contain it. Before you sign any agreement, you need to ask the right questions to ensure the contractor is qualified, properly licensed, and equipped to handle the job safely. Here are the critical questions that should guide your hiring decision.

Is Your Contractor Licensed and in Good Standing?

This is your first and most essential question. In California, contractors performing lead work must be licensed by the Contractors State License Board (CSLB). Ask to see the license and verify it at cslb.ca.gov—don't just take their word for it. A legitimate contractor will welcome this verification. Ask specifically about their contractor classification and whether they hold any specialty certifications related to lead work. A licensed contractor demonstrates they've met training, bonding, and insurance requirements set by the state. If a contractor hesitates to provide their license number or you can't verify it online, that's a red flag to move on.

What Training and Certifications Do They Have?

Beyond a basic contractor license, ask about their specific training in lead-safe work practices. Ask how long they've been performing lead work and whether they've completed any lead-specific courses or certifications. Ask them to explain the EPA's RRP (Renovation, Repair, and Painting) rule and how they comply with it. A knowledgeable contractor should be able to discuss containment protocols, dust control, safe disposal, and post-work clearance testing without hesitation. If they can't explain these practices clearly, they may not be properly trained for this specialized work.

What's Your Process for Assessment, Containment, and Cleanup?

Ask the contractor to walk you through their entire process step by step. How will they assess which surfaces contain lead? How will they contain the work area to prevent dust spread to other parts of the home? What equipment and methods will they use for removal? How will they dispose of lead-contaminated materials? Will they perform clearance testing after the work is complete, and if so, how? A thorough contractor should be able to explain each phase in detail. Don't accept vague answers—specificity indicates they know what they're doing.

Can You Provide References and Documentation?

Ask for references from recent lead work projects and follow up with them. Ask whether the contractor carries liability insurance and will provide proof. Request documentation showing their compliance with California and federal lead regulations. Ask what happens if problems are discovered during the work—will they address unexpected issues and how will they communicate scope changes? A professional contractor will have this information organized and available.

Taking time to ask these questions before hiring protects both your home and your family's health. A qualified, licensed contractor will answer confidently and completely. To find a licensed contractor qualified for lead work in your area, contact Bay Area Lead Removal at (628) 301-4165 for a referral.

Verify any contractor's license at cslb.ca.gov before work starts, and ask what lead-related certification applies to the job.

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