Hiring a Contractor: Questions Worth Asking Before Work Begins

Home & Living Editorial Team Staff Writer · Feb 15, 2025 · 6 min read

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Know what to ask before signing anything. This guide covers licensing, insurance, written quotes, timelines, and red flags to watch for.

Key Takeaways

Always verify a contractor's license and insurance before any work or payment begins.
Get every quote, timeline, and scope of work in writing — verbal agreements are hard to enforce.
Understand the payment schedule upfront; large deposits before work starts are a common red flag.
Confirm who pulls permits and who is responsible for inspections on your project.
Check references from recent, comparable projects — not just testimonials on the contractor's website.

Why Your Questions Matter Before a Single Nail Is Driven

Hiring a contractor is one of the most consequential decisions a homeowner makes. The work affects your home's safety, your budget, and in some cases your legal standing with local building authorities. Yet many homeowners skip the vetting process — and pay for it later with unfinished work, budget overruns, or code violations.

The good news: a handful of focused questions, asked early, reveal whether a contractor is prepared, professional, and trustworthy. You don't need a construction background to ask them. You just need to know what to listen for. If you're new to managing home projects, our beginner's guide to home improvement priorities is a helpful starting point.

Start a Simple Project File

Keep all contractor communications, quotes, contracts, permits, and receipts in one folder — physical or digital. If a dispute arises or you sell your home, having a clear paper trail is invaluable. Even a few organized photos of work at each stage can make a meaningful difference.

Licensing, Insurance, and Credentials: The Non-Negotiables

Before discussing scope or price, confirm the basics. Ask directly: Are you licensed to do this type of work in this state? Licensing requirements vary by trade and location, so verify the answer independently through your state's contractor licensing board rather than taking anyone's word for it.

Equally important: Do you carry general liability insurance and workers' compensation? Liability insurance protects your property if the contractor damages something. Workers' comp protects you if a worker is injured on your property — without it, you could face legal exposure. Ask for certificates of insurance and confirm they're current before signing anything.

Licensing Requirements Vary by State and Trade

There is no single national contractor license in the United States. Requirements differ significantly by state, county, and trade (electrician, plumber, general contractor, etc.). What's required in one state may not apply in another. Always verify the specific requirements for your location and project type through your local or state licensing authority.

Also ask whether subcontractors will be involved. If so, do those subs carry their own insurance? The answer should be yes.

Scope, Quotes, and the Written Contract

A verbal estimate is not a contract. Before any work begins, you should have a written document that covers: the exact scope of work, materials to be used, start and end dates, total cost, and the payment schedule. Vague language like "standard materials" is a warning sign — specifics protect both parties.

Require a fully itemized written contract before any work begins.

A detailed contract defines expectations for both parties and provides a legal reference if disputes arise. Vague agreements leave homeowners vulnerable to scope creep and unexpected charges.

Example: A contract for a bathroom remodel should specify tile type and dimensions, fixture grades, grout color, and which party supplies each material — not simply 'bathroom renovation.'

Verify license and insurance independently through official sources.

Contractors can misrepresent their credentials verbally or on paper. Checking directly with your state licensing board and requesting a current certificate of insurance confirms the information is accurate and up to date.

Example: Search your state contractor licensing board's public database using the contractor's name or license number before your first payment.

Tie payment milestones to completed work, not to the calendar.

Calendar-based payments give contractors little incentive to stay on schedule. Milestone-based payments — such as paying the next installment after framing is inspected and approved — keep progress and payment aligned.

Example: A kitchen renovation contract might schedule payments at contract signing, rough-in completion, cabinet installation, and final walkthrough.

Confirm permit responsibility in writing before work starts.

Unpermitted work can trigger fines, require teardown, and complicate home sales. Knowing — and documenting — who is responsible eliminates ambiguity and protects you if something goes wrong.

Example: Add a line to the contract stating: 'Contractor is responsible for obtaining all required permits and scheduling all inspections before, during, and upon project completion.'

Check references from recent, comparable projects — then actually call them.

A reference from five years ago or a very different type of project tells you little about current workmanship. Recent references from similar jobs reveal how the contractor actually performs under conditions like yours.

Example: If you're having a deck built, ask for references from two or three deck projects completed in the past 12 months, and ask those homeowners specifically about cleanup, communication, and whether the final cost matched the quote.

On the topic of payment: a reasonable deposit to secure scheduling and cover initial materials is normal. However, if a contractor requests more than 30–50% upfront before any work has started, treat that as a red flag. Staggered payments tied to project milestones are a sounder structure. You can apply similar contract-review discipline to other large commitments — see our pre-purchase checklist for finance agreements for a comparable approach.

Permits, Timelines, and References

Ask plainly: Will this project require a permit, and who will pull it? The contractor — not the homeowner — should generally pull permits for the work they're performing. A contractor who suggests skipping permits to save time or money is steering you toward potential fines, failed home inspections at resale, and safety risks. Our article on understanding building permits explains which projects typically require one and why it matters.

Ask for a realistic timeline with milestones, and ask what happens if delays occur. Then ask for two or three references from projects completed in the past year — specifically projects similar in scope to yours. Call those references and ask whether the work was completed on time, on budget, and to their satisfaction.

high Search your state's contractor licensing board website today to verify the license status of any contractor you're considering.

high Write down your project scope in plain language before your first contractor meeting — this helps you evaluate whether their quote addresses everything you need.

high Ask for a certificate of insurance before scheduling a site visit — any reputable contractor will provide one without hesitation.

medium Call at least two references from recent projects and ask one specific question: 'Did the final cost match the original quote, and if not, why?'

Finally, trust your instincts during initial conversations. A contractor who dismisses your questions, pressures you to sign quickly, or can't produce documentation on request is showing you something important. Don't ignore it. Being well-informed also means separating fact from fiction — our piece on home improvement myths covers common misconceptions that cost homeowners money.

Home & Living Editorial Team

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Home & Living Editorial Team is the collective byline for our editorial team and contributor network. Articles published under this byline or an editorial pen name are researched, written, and reviewed according to our editorial standards for clarity, consistency, and independence before publication.

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