How to vet a home contractor before hiring

A good contractor protects your budget and your home. These steps help you verify credentials, compare written bids, and spot common red flags before you sign.

Home interior under renovation with exposed walls and construction materials

Home services

Last updated: 2026-05-24 · By Pebble Finds Editorial (Editorial)

Key takeaways

  • Verify license status with your state or local licensing authority before you sign.
  • Confirm liability and workers' compensation insurance with the insurer, not just on paper.
  • Get at least three written estimates with the same project scope.
  • Use a detailed written contract and avoid paying the full job upfront.
  • Walk away from high-pressure sales, cash-only demands, and vague contracts.

Why contractor vetting matters

Home improvement projects can be expensive, and poor contractor choices can lead to unfinished work, property damage, or lost deposits. The Federal Trade Commission (FTC) regularly warns consumers about home repair and remodeling fraud.

Most problems are preventable with basic verification: license checks, insurance confirmation, written bids, and a clear contract. Legitimate contractors expect questions.

Step 1: Verify license and registration

Many states require contractors to hold an active license for certain work. Search your state licensing board database using the business name and license number the contractor provides.

Confirm the license class matches your project type and check for complaints or disciplinary actions. If licensing is not required in your area, ask your local building department what credentials apply.

Step 2: Confirm insurance coverage

Ask for a certificate of insurance showing general liability and workers' compensation coverage. Then call the insurer to confirm policies are active for your project dates.

Without proper insurance, you may face liability if someone is injured on your property or if damage occurs during the job. The FTC hiring contractor guide recommends treating insurance verification as non-negotiable.

Step 3: Check references and reputation

Request at least three recent references for similar work and call them. Ask about timeline, budget changes, communication, quality, and cleanup.

Search complaint records through your state attorney general or consumer protection office. Online reviews can help, but rely on patterns and how issues were handled, not a single rating.

Step 4: Compare written estimates

Get written estimates from multiple contractors using the same scope: materials, labor, timeline, permits, and exclusions. The FTC advises caution when one bid is far below others; that can signal cut corners or hidden charges later.

Do not choose on price alone. Clarity, communication, and contract terms matter as much as the bottom line.

Step 5: Review the contract and payment schedule

Get a signed written contract before work starts. It should list scope, materials, start and completion dates, total price, payment milestones, warranty terms, and change-order rules.

The FTC recommends avoiding large upfront payments. Many homeowners use a modest deposit plus progress payments, with a final holdback until work is complete and accepted. Never pay the full amount before completion.

Confirm who pulls required permits and schedules inspections. Unpermitted work can create safety and resale problems.

Red flags that should stop the hire

Be cautious if a contractor pressures you to sign immediately, demands cash or untraceable payment, refuses license or insurance verification, offers to skip permits, or asks for full payment upfront.

Door-to-door offers with “leftover materials” discounts are a common warning sign in FTC consumer alerts. Take time to compare options.

Sources

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Common questions

How much should I pay a contractor upfront?

Many homeowners pay a small deposit plus progress payments tied to completed work. The FTC warns against paying the full job upfront. Check your state rules—some states cap deposit amounts.

How do I verify a contractor license?

Use your state or local licensing board lookup with the contractor’s license number and legal business name. Confirm status, expiration, and complaint history yourself.

What insurance should a contractor carry?

Ask for general liability insurance and workers' compensation where required. Verify coverage directly with the insurance company using the certificate details.

Should I always pick the lowest bid?

Not necessarily. A very low bid can mean missing scope, lower-quality materials, or future change orders. Compare clarity, references, and contract terms alongside price.

What if something goes wrong during the project?

Document issues in writing with photos and dates. Contact the contractor first. If needed, file complaints with your state consumer protection office and report fraud to the FTC at ReportFraud.ftc.gov.

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