Price is the easy part. Before you hire a contractor in the United States, confirm the license, the legal business name, insurance, the written scope, how you'll pay, and who actually does the work.

A polished estimate, a stack of reviews, an LLC, or a W-9 still doesn't prove the person is licensed, insured, or a fit for your project. Licensing, deposit limits, contract notices, permits, and cancellation rules change by state and locality. Confirm those rules with the agency that regulates the trade where the job is. This is general consumer information, not legal advice.

Start with the right type of contractor

The person you hire should match the work and the contract structure.

Titles get used loosely. The contract needs to say who is responsible for the project, who receives your payments, who pulls permits, and who handles problems caused by subcontractors.

Ask these questions before you accept a bid:

• What is the exact legal name of the business?
• Who will sign the contract and send invoices?
• Will employees or subcontractors perform the work?
• Which parts of the project will be subcontracted?
• Who is responsible for permits, inspections, cleanup, and corrections?

Verify the license and business identity

License rules differ by trade, project size, and location. Some work sits with a state board. Other work is handled locally. A license may cover only one classification of work.

Use this process:

1. Find your state's official contractor licensing board or consumer-affairs agency.
2. Search the contractor's exact legal name and license number.
3. Check the status, expiration date, authorized trade classification, and service area.
4. Review disciplinary or complaint information if the agency publishes it.
5. Compare the license name with the name on the estimate, contract, insurance certificate, and invoice.
6. Ask whether the project needs a separate trade license, permit, bond, or inspection.

A private directory such as Uhire's contractor-verification resource can help you organize questions and compare candidates. Treat directory listings and reviews as a starting point, then confirm the license with the issuing agency.

A current license shows authorization. It does not prove workmanship, financial stability, on-time completion, or insurance coverage. Ask for recent references on projects like yours, and call those references yourself.

Check insurance before work begins

Request a current certificate of insurance and ask the contractor's agent or carrier to verify it. Match the named insured to the business in your contract. Check the policy dates, coverage types, and limits.

General liability insurance generally addresses certain third-party bodily injury and property-damage claims, subject to the policy's terms, exclusions, and limits. Construction Coverage's general liability overview describes the type of risk this policy is intended to address.

Depending on the project, also ask about:

• Workers' compensation: Relevant when the contractor has employees or a crew. State requirements differ.
• Commercial auto: Useful when company vehicles will transport people, equipment, or materials.
• Builder's risk or course-of-construction coverage: May matter for a major build or renovation.
• Professional liability: More relevant when the contractor provides design, engineering, inspection, or other professional services.
• Tools and equipment coverage: May address the contractor's own equipment, but it does not automatically protect your property.

A certificate is a summary, not the full policy. It may omit exclusions, extra insureds, or project conditions. Ask who is covered if a subcontractor causes damage, and request proof of insurance for significant subcontractors when the job warrants it. CREST's contractor insurance guide lists several common coverage types.

Insurance is not a workmanship warranty. It may not pay for every defect, delay, unfinished task, or contract dispute. Your written agreement should say how defective or unfinished work will be corrected.

Get a detailed written contract

Don't rely on a verbal promise or a one-page estimate for a substantial project. Before you pay a deposit, make sure the agreement identifies:

• The contractor's legal name, address, contact details, and license number
• Your name and the property address
• A detailed description of the work
• Plans, specifications, material grades, brands, and allowances
• Tasks that are excluded from the price
• The total price and whether it is fixed-price, time-and-materials, or cost-plus
• Deposit, progress-payment, and final-payment terms
• Start date, estimated completion date, and treatment of delays
• Responsibility for permits, inspections, disposal, and cleanup
• Names or roles of subcontractors, if known
• Warranty terms and the process for requesting corrections
• Change-order procedures
• Termination terms and the dispute-resolution process
• Required notices, disclosures, or cancellation language under local law

A fixed-price contract is based on a defined scope. Extra work should require a written change order. A time-and-materials contract should list hourly rates, material pricing, markups, and a method for approving hours. A cost-plus contract should explain the contractor's fee and may need a spending cap if you want a predictable maximum.

Require written approval before non-emergency extra work begins. A change order should describe the added or removed work, the price change, and the effect on the schedule. Don't sign a contract with blank spaces for the scope, price, or completion date.

Construction contracts may also address lien notices and lien waivers. Those documents can have legal consequences, and the procedures vary by state. Ask how payments to subcontractors and suppliers will be documented, and get local advice before you sign a waiver you don't understand.

Compare bids on the same scope

The lowest bid may simply leave out work another contractor included. Compare each proposal line by line.

Check whether every bid includes:

• Labor and subcontractor costs
• Materials, delivery, and storage
• Permit and inspection fees
• Engineering or design work
• Demolition, disposal, and cleanup
• Taxes and service fees
• Allowances for items you have not selected
• Temporary protection for floors, furniture, or landscaping
• Warranty work and post-project touch-ups
• The expected schedule

Ask what could change the price. Material allowances, hidden damage, design changes, and permit requirements can all move the final amount. If the contractor expects a price adjustment, require the reason and the revised price in writing.

Be cautious with a bid that is dramatically lower than the others, especially if the contractor can't explain the gap. A low price is not automatically a problem. Vague exclusions, unusually large deposits, or pressure to sign immediately raise your risk.

Use a payment plan that follows the work

Tie payments to observable milestones, not informal promises. Separate payments might correspond to approved materials arriving, a phase passing inspection, or a defined portion of work being completed.

Before paying:

• Match the invoice to the contract and approved change orders.
• Keep receipts, canceled checks, card confirmations, and payment records.
• Use a traceable payment method instead of undocumented cash.
• Ask what a deposit covers and whether any portion is refundable.
• Don't authorize extra work through a casual conversation.
• Confirm any request to change bank details by calling a known number for the business.
• Keep copies of permits, inspection results, photos, and messages.

A contractor may need a deposit to order materials, but a large upfront payment deserves a written explanation and clear protections. State law may limit deposits or require specific contract language.

Before you release the final payment, compare the completed work with the contract, document the punch list, and confirm required inspections. Don't make an unauthorized deduction or stop payment based only on frustration. Review the contract and get local advice if the parties disagree.

If the general contractor uses subcontractors, avoid paying them directly unless your contract specifically requires it and you have verified the arrangement. Separate payments can make it harder to tell who has been paid for labor or materials.

Understand what a W-9 does not prove

A contractor may ask you for a W-9 to collect taxpayer information. That form does not prove a license, insurance, quality of work, or independent-contractor status.

The IRS looks at the facts of the relationship, including behavioral control, financial control, and the type of relationship. Its independent contractor guidance explains why a contract label, invoice, LLC, or W-9 does not decide the classification by itself.

If you control how and when a person performs ongoing work, the arrangement may need closer tax review. Reporting duties also depend on who is paying and the nature of the payment. A personal home project should not automatically be treated like a business payment. Check current IRS instructions or ask a tax professional before filing tax forms.

Form SS-8 is used to request an IRS determination about worker status when the facts are unclear. It is not a way to resolve a defective remodel, late completion, or payment dispute. Form 8919 is intended for workers reporting certain uncollected employee Social Security and Medicare taxes, not for a homeowner's complaint about a contractor.

Watch for these warning signs

One warning sign may have an innocent explanation. Several together should make you pause.

• The contractor will not provide a license number or legal business name.
• The license name does not match the contract or invoice.
• The license is expired or does not cover the work.
• The insurance certificate is missing, expired, or lists a different business.
• The contractor refuses to identify subcontractors on a major project.
• The price is vague, unusually low, or filled with unexplained allowances.
• You are pressured to sign immediately.
• The contractor requests a large cash deposit without a detailed contract.
• The contractor says permits are unnecessary without explaining why.
• Extra charges are requested without written change orders.
• You are asked to sign blank documents or waive rights you do not understand.
• The contractor wants payment sent to a different person or account without independent confirmation.

Not every trade or small job requires the same license or insurance. If a contractor says a requirement does not apply, verify that statement with the relevant local agency rather than relying on an argument.

What to do if the project goes wrong

Act early and keep the discussion factual.

1. Document the problem. Save the contract, estimates, invoices, permits, photos, inspection reports, messages, and payment records.
2. Notify the contractor in writing. Describe the specific unfinished or defective work and request a written correction plan.
3. Stop approving extra work. Don't authorize new charges while the original scope is disputed.
4. Protect people and property. If there is an immediate safety hazard, keep people away from the area and contact the appropriate emergency or building authority.
5. Check the contract's dispute procedure. It may require negotiation, mediation, arbitration, or another step before a lawsuit.
6. Contact the appropriate agency. Possible routes include the state licensing board, local building department, or state attorney general's consumer-protection office.
7. Ask what remedy is available. A licensing agency may investigate or discipline a contractor but may not be able to recover your money.
8. Get advice for major losses. A local attorney, mediator, insurer, or construction professional may help you evaluate a serious property, payment, or lien dispute.

If you receive a lien notice or demand from a subcontractor or supplier, don't ignore it. Keep the notice and contract together, notify the general contractor promptly, and seek advice about the deadline and response required in your state.

Questions to ask before signing

Use this short checklist during the final meeting:

• Can I verify your license with the issuing agency?
• Does the license cover this exact type of work?
• What is the legal name on the contract and insurance policy?
• Who will pull permits and schedule inspections?
• Which employees or subcontractors will work on the project?
• Can I review current insurance information?
• What exactly is included and excluded from the price?
• What could trigger a price change?
• How must change orders be approved?
• What are the payment milestones?
• What warranty and correction process applies?
• How are delays, termination, disputes, lien notices, and waivers handled?

Look up the license number on the state board site, match that name to the contract and the insurance certificate, and keep a copy of both. If those three records don't line up, don't sign until they do.