How to Vet a Contractor Before Signing

Hiring a contractor ranks among the most consequential financial decisions you'll make as a homeowner, yet most people spend less time vetting their contractor than they do researching a new dishwasher. The difference between a professional who delivers quality work on schedule and one who abandons your half-finished kitchen comes down to the legwork you do before signing. A thorough vetting process isn't about being difficult or distrustful. It's about establishing clear expectations and confirming that the person you're hiring has the capability, credentials, and track record to execute your project. The red flags are almost always visible before work begins if you know where to look.

1. Verify Coverage First. Start by confirming the contractor holds a valid license in your state and carries both general liability and workers' compensation insurance. Request their license number and verify it directly through your state's licensing board website, not just by looking at a card they show you. Call their insurance carrier to confirm coverage is current and that policy limits meet your project scope.
2. Talk to Real Customers. Request contact information for three clients whose projects were completed within the past year, ideally jobs similar in scope to yours. Call each reference and ask specific questions about timeline adherence, budget accuracy, communication quality, and how the contractor handled problems. Ask if you can see photos of the completed work or visit the site if it's nearby.
3. Hunt the Bad History. Search the contractor's name on your state attorney general's website, Better Business Bureau, and local licensing board for complaints or disciplinary actions. Check Google reviews and look for patterns in negative feedback rather than isolated complaints. Search court records in your county for liens or lawsuits filed by or against the contractor.
4. See Their Operation. Schedule a meeting at the contractor's actual office or shop, not just a coffee shop. A legitimate contractor with staying power has a physical business location with tools, materials, and administrative infrastructure. Observe whether they have organized records, proper equipment, and staff who seem to know what's happening on current jobs.
5. Get It All in Writing. Get a complete written estimate that breaks down materials, labor, permits, and timeline with specific start and completion dates. The estimate should itemize each phase of work, specify material brands and grades, and outline the payment schedule. Vague line items like miscellaneous or allowances without explanation signal poor planning or room for padding.
6. Read Every Line. Review the written contract for clear language on scope of work, payment schedule, change order process, warranty terms, and dispute resolution. Payment should never exceed the value of work completed, and avoid contractors who demand large upfront deposits beyond what's needed for materials. Confirm the contract includes cleanup provisions and a specific substantial completion date.
7. Confirm Permit Plans. Clarify in writing who will pull necessary permits and confirm the contractor understands local code requirements for your project. Check with your municipal building department to verify the contractor has pulled permits for recent jobs and that inspections were completed. Contractors who suggest skipping required permits are liability risks.
8. Feel Out Their Honesty. Assess how the contractor communicated throughout the vetting process. Consistent responsiveness, clear explanations, and patience with your questions during the estimate phase predict how they'll communicate when problems arise mid-project. If getting straight answers feels difficult before you've signed, it will only get worse once work begins.