Why Your Questions Matter More Than the Estimate

A low bid can look like a win — until the project stalls, the work fails inspection, or you discover the contractor carried no insurance. Hiring a general contractor is one of the largest financial decisions most homeowners make, and the vetting process deserves as much attention as the renovation itself.

This checklist is designed to guide your conversations with prospective contractors before you sign anything. Use it across multiple interviews so you're comparing apples to apples. If a contractor is reluctant to answer these questions directly, that hesitation is itself useful information.

Once you've chosen someone and are ready to review the agreement, see our guide on understanding renovation contract terms for a clause-by-clause breakdown of what to expect in a professional contract.

Licensing & Insurance

Ask for the contractor's state license number and verify it directly with your state licensing board before proceeding. Must
Request a certificate of general liability insurance and confirm the coverage amount is adequate for the scope of work. Must
Confirm the contractor carries workers' compensation insurance covering all on-site workers, including subcontractors. Must
Ask whether the contractor will pull all required permits, and verify which permits your project legally requires in your municipality. Must

Experience & References

Ask how many years the contractor has been in business under their current license and business name. Must
Request at least three references from completed projects similar in scope and type to yours — then contact each one. Must
Ask references specifically whether the project finished on time, on budget, and whether they would hire this contractor again. Should
Search the contractor's name and business with your state attorney general's office or Better Business Bureau for any unresolved complaints. Should

Scope, Subcontractors & On-Site Management

Ask which portions of the work will be performed by subcontractors, and request names and license information for specialized trades. Must
Confirm who will be on your property each day — the general contractor personally, a project manager, or crews you haven't met. Must
Ask how many other active projects the contractor is managing simultaneously and how that affects availability for your job. Should

Contract, Payment & Timeline

Request a written, itemized contract covering scope of work, materials, labor, timeline, and payment schedule before signing anything. Must
Review the payment schedule carefully — be wary of any contractor requiring more than 10–15% upfront before work begins. Must
Ask how change orders are handled: confirm that any scope changes must be documented in writing with a cost and timeline adjustment. Must
Clarify what the project completion date means and what remedies exist if that date is missed without justification. Should
Ask whether the contractor will provide lien waivers from subcontractors and suppliers upon final payment. Should

Warranties & Dispute Resolution

Ask what warranty the contractor offers on their workmanship and get the terms in writing as part of the contract. Must
Confirm how disputes or deficiencies discovered after completion are handled and what the process looks like. Nice to have

Tools to Help You Prepare

You don't need specialized software to vet a contractor effectively, but a few practical resources will make your interviews more productive and your records more reliable.

Required

State contractor licensing board website

Verify that a contractor's license is current, active, and free of disciplinary actions in your state.

Required

Printed or digital interview notes template

Record answers from each contractor interview consistently so you can make a side-by-side comparison.

Required

Smartphone camera or scanner app

Capture copies of insurance certificates, license documents, and any written estimates provided during interviews.

Optional

Spreadsheet or comparison table

Organize bids, timelines, payment terms, and reference scores across multiple contractors for an objective review.

Not sure whether this project should involve a contractor at all? Our framework on DIY vs. professional installation can help you decide before you start reaching out for bids.

Never Pay in Full Before Work Is Complete

A contractor who demands full payment — or a very large deposit — before starting work is a significant red flag. Standard industry practice ties payments to project milestones, with a meaningful final payment withheld until the work passes inspection and punch-list items are resolved. Paying in full upfront removes your primary leverage if problems arise.

After the Interview: What to Do with Your Notes

Once you've spoken with two or three contractors using this checklist, compare your answers side by side. Look beyond price — evaluate responsiveness, clarity of communication, willingness to provide documentation, and comfort with your timeline. A contractor who answers every question clearly and promptly is demonstrating, in real time, how they'll communicate throughout the project.

Hiring a contractor shares the same decision discipline as any major financial commitment. The same analytical approach used in evaluating any big purchase applies here: consider total cost, alternatives, timing, and long-term fit — not just the upfront number.

Verbal Agreements Offer No Real Protection

In home renovation, if it isn't in writing, it effectively doesn't exist. Verbal assurances about timelines, materials, or warranties are nearly impossible to enforce if a dispute reaches mediation or court. Insist on a fully written contract before any work begins or any payment changes hands — and read every clause. For a guide to what those clauses mean, review our article on renovation contract terms.

This article is for general informational and educational purposes only and does not constitute legal, financial, or professional contracting advice. Requirements for licensing, permits, and insurance vary by state and locality. Always verify contractor credentials with your local licensing board and consult a qualified professional for guidance specific to your project and jurisdiction.