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Questions to Ask a Contractor Before Signing Any Home Improvement Agreement

Questions to Ask a Contractor Before Signing Any Home Improvement Agreement

Photo credit: FaqsInsights.com | Stay Informed, Stay Ahead

Hiring a contractor without the right questions is one of the most common renovation mistakes. Use this checklist to vet professionals before work begins.

Key Takeaways

  • Verifying a contractor's license and insurance before signing is non-negotiable in most states.
  • A detailed written contract protects you if scope, timeline, or payment disputes arise later.
  • Asking about subcontractors upfront prevents surprises about who is actually working in your home.
  • Payment schedules tied to project milestones are generally safer than large upfront lump sums.
  • Permit responsibility and cleanup expectations should be spelled out in writing before work begins.

Why These Questions Matter Before You Sign

Hiring a contractor is one of the highest-stakes decisions a homeowner can make. A poorly vetted hire can result in unfinished work, code violations, or costly repairs - sometimes years after the project closes. Yet many homeowners sign agreements after a single conversation, without knowing what they agreed to or who, exactly, will be showing up on day one.

This checklist gives you a structured framework to evaluate any contractor before committing. It's most useful during the bidding phase, when you have leverage and time to compare responses. If you're planning a larger project - say, a bathroom renovation - you'll also want to think about how trades will be sequenced once work begins. Our bathroom remodel planning guide walks through that process in detail.

Never Skip the Insurance Verification Step

A contractor who cannot produce a current certificate of insurance - or who asks you to pull permits in your own name - presents significant financial and legal risk. If an uninsured worker is injured on your property, you may be held liable. Always request the certificate directly from the insurer, not just a printed copy from the contractor.

What to Ask and Why It Matters

Work through the checklist below with each contractor you're considering. Document their answers in writing - either by email follow-up or by noting responses during the meeting. Consistent documentation makes it far easier to compare bids and spot red flags.

Credentials and Legal Standing

Ask for the contractor's license number and verify it independently with your state licensing board. Must
Request a certificate of general liability insurance and confirm it is current and adequate for your project scope. Must
Ask whether workers' compensation insurance covers all workers on site, including any subcontractors. Must
Check the contractor's standing with your state's attorney general or consumer protection office for unresolved complaints. Should

Experience and References

Ask how many projects similar in scope and type to yours the contractor has completed in the last two years. Must
Request at least three references from comparable past projects and follow up with actual phone calls. Must
Ask whether you can visit a current or recently completed job site to see work quality firsthand. Should

Subcontractors and Crew

Ask which portions of the work will be handled by subcontractors rather than the contractor's direct employees. Must
Confirm that any subcontractors used are also licensed and insured for their respective trades. Must
Ask who your primary day-to-day point of contact will be once work is underway. Should

Permits and Code Compliance

Ask explicitly who is responsible for pulling all required permits - this should always be the contractor, not the homeowner. Must
Confirm that all inspections required by local code will be scheduled and passed before work proceeds to the next phase. Must
Ask whether the project scope as described falls within any local zoning or HOA restrictions that need to be checked. Should

Contract and Payment Terms

Review the written contract line by line and ensure the full scope of work, materials, and finishes are specified - not just described in general terms. Must
Confirm that the payment schedule is tied to project milestones rather than calendar dates or upfront percentages exceeding what is standard in your state. Must
Ask how change orders are handled - they should require written authorization and a cost estimate before additional work begins. Must
Verify the contract includes a lien waiver clause, protecting you if the contractor fails to pay suppliers or subcontractors. Should

Timeline and Site Management

Ask for a realistic project start date and an estimated completion timeline with key milestones documented. Must
Ask how daily site cleanup and waste removal are handled, and who is responsible for disposal costs. Should
Confirm who secures the site at the end of each workday if your home will have open walls, cut utilities, or temporary access points. Nice to have

Once you've selected a contractor and work begins, trade sequencing becomes the next critical variable. Skipping steps - or letting trades overlap incorrectly - can cascade into expensive rework. See our guide on renovation trade sequencing to understand how to coordinate the work after you've signed.

Large Upfront Payments Are a Common Red Flag

Most consumer protection agencies advise against paying more than 10-33% of a project's total cost upfront, though limits vary by state. A contractor who demands 50% or more before a single task is completed may be financially unstable or operating in bad faith. Structure your payments in the contract to follow completed, verifiable milestones - and never make a final payment until the work has passed inspection and you are satisfied with the result.

Tools to Help You Stay Organized

Having the right tools on hand makes your contractor interviews more productive and your paper trail more defensible.

Required

State Contractor License Lookup Portal

Used to independently verify a contractor's license status and check for disciplinary history before signing.

Required

Written Question Log or Spreadsheet

Helps you record contractor answers consistently so you can compare multiple bids side by side.

Required

Contract Review Checklist

A clause-by-clause checklist ensures the written agreement covers scope, payment terms, permits, and warranties before you sign.

Optional

Camera or Smartphone

Documents the existing condition of your home before work begins, providing a clear baseline if disputes arise.

Optional

Real Estate or Construction Attorney

For larger or more complex projects, an attorney can review the contract language and flag provisions that are unfavorable or ambiguous.

Home & Garden Editorial Team

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