A good interview tells you more than any brochure. The right questions surface whether a contractor is licensed, insured, organized, and honest about how the job will actually run — long before a shovel hits the ground. Here are fifteen questions worth asking every candidate, grouped by what they reveal, plus what a solid answer sounds like.
The short version
Confirm licensing, insurance, and who is legally responsible for the work.
Find out who actually shows up — employees, subs, or a rotating crew.
Pin down the timeline, the payment schedule, and how changes are handled.
Ask about permits, cleanup, and the warranty in writing.
Watch how they answer as much as what they answer.
Licensing and insurance
Are you licensed for this type of work in my area? You want a clear yes and a license number you can verify.
Do you carry general liability and workers’ compensation insurance? Ask for a certificate; uninsured work can push liability onto you.
Is the business registered under the name on the contract? The names on the license, insurance, and contract should match.
Experience and the crew
How many projects like mine have you done recently? You want relevant, current experience, not just years in business.
Who will actually be on site each day? Find out whether it is your contractor’s own crew, subcontractors, or both.
Who is my point of contact, and how do I reach them? One clear line of communication prevents a lot of headaches.
Can you share recent references and an address I can drive by? Real, reachable references are a strong sign.
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Scope, schedule, and money
What is your written estimate, and what does it include and exclude? Vague, lump-sum bids are hard to compare and easy to pad.
What is the start date and realistic finish date? Look for a schedule, not just “soon.”
What does the payment schedule look like? A modest deposit with payments tied to milestones is healthy.
How do you handle change orders and surprises? The answer should be “in writing, priced before we proceed.”
Who pulls the permits? For permitted work, the contractor should handle it — that keeps responsibility with them.
Standards and the finish
How do you protect the rest of my home and clean up? Dust control and daily cleanup say a lot about professionalism.
What warranty do you offer on labor? Get the length and terms in writing, separate from any product warranties.
What happens if I am not satisfied with something? A confident pro has a straightforward answer for this.
Question area
Good answer
Warning sign
Insurance
Provides a certificate on request
“I’ve never needed it”
Payment
Deposit plus milestone payments
Large cash sum up front
Changes
Written, priced change orders
“We’ll settle up at the end”
Warranty
Written labor warranty
Verbal promise only
Pro tip — listen for defensiveness
The content of the answers matters, but so does the tone. A trustworthy contractor welcomes questions about insurance, payment, and warranties because those are the things they get right. If a candidate seems annoyed that you asked, imagine how they will react when you raise a problem mid-project.
Put it in writing
Once you have your answers, the ones that matter belong in the contract: scope, price, schedule, payment milestones, permit responsibility, and warranty. A verbal “don’t worry, we’ll take care of it” is worth nothing when a dispute comes up. The best contractors expect this and put it in writing without being pushed.
Ready to start interviewing?
Find and compare local general contractors on Contractors At Your Service.
Talking with at least three lets you compare answers, approaches, and prices without dragging the process out. For a large or unusual project, a couple more can be worth the time.
Should I ask these questions over the phone or in person?
A quick phone screen weeds out poor fits on availability and scope. Save the detailed questions — crew, schedule, payment, warranty — for a site visit where the contractor can see the actual work and give real answers.
Is it rude to ask for insurance certificates and references?
Not at all — it is standard, and professionals expect it. Anyone who treats these basic requests as an insult is telling you something useful about how the job will go.
What if a contractor refuses to put answers in writing?
Treat it as a serious red flag. The whole point of the interview is to turn good answers into contract terms. A contractor who will not commit scope, price, schedule, and warranty to paper is one to walk away from.
General information for homeowners — not legal or professional advice. Remodeling costs, permits, and licensing rules vary by location and change over time; confirm with a licensed local contractor.