Questions to Ask a Contractor's References (and What to Do With the Answers)

Everyone tells you to check references. What a finished reference check is actually supposed to produce is much less clear.

So it’s easy to wing it: three friendly calls, three vaguely positive impressions, and a decision really made somewhere else. The problem isn’t that the questions weren’t smart enough. It’s that reference one talked about the kitchen and reference three talked about the crew being friendly, and there’s no honest way to weigh a kitchen against a crew. The fix is structural: ask the same questions, in the same words, of everyone.

If you’re about to dial, here they are — with more on what each of the six questions is for further down:

1. Can you confirm the dates and scope of the job?
2. Would you hire them again?
3. Did it happen roughly when they told you it would?
4. Did the final cost land where you expected?
5. When something went wrong, how did they handle it?
6. Is there anything you’d want to know, in my position?

Ask those six of every reference, in that order, in exactly those words. The rest of this page is why that wording matters, what to write down, and the paperwork check that sits on the other side of the calls.

The list you were handed is already curated

Start from what the three names actually are: a curated list. Nobody hands you the client from eighteen months ago who is still waiting on a callback. So ask for more than three, and ask specifically — recent clients, on work that looked like the job you’re about to hire for, not the oldest or the fondest.

If a number is dead or rings out forever, that isn’t automatically damning, but don’t let it end the search either. Call the office and ask for a working number. How that request gets handled — promptly, or with visible reluctance — is itself a small piece of information.

A few ways to round the list out on your own:

• Ask specifically for the two or three most recent jobs, not the two or three favorites. Recency tells you what the crew looks like now, not two years ago.
• Ask for a job of similar scope to yours. A glowing reference for a small repair doesn’t tell you much about how the same contractor handles a full remodel.
• Where you can arrange it politely, seeing a past job holding up in person is its own kind of reference — a photo can be old, a driveway can’t.

Call, don’t email

A written answer can be revised on the way to you — read back, softened at the one blunt line, sometimes handed to someone else to answer for them. None of that is available on the phone. A written reply can be edited before you ever see it; a live answer cannot, and the half-second of hesitation before it is part of what you’re there to hear.

Ask open, then get out of the way

“Walk me through what happened when the tile order was delayed” produces an account you can actually evaluate. “How would you rate them, one to ten” produces a number offered mostly to get off the phone politely — nobody means it with any precision, and it tells you almost nothing about what actually happened.

Once you’ve asked, stop talking. Let the silence sit. It will feel far longer to you than it does on the other end of the line, and that pause is where a qualified, specific answer has room to arrive — the reflexive first sentence rarely has room for one.

Two more habits pay for themselves on every call. Don’t correct anything in the moment — if a reference’s account doesn’t quite match what the contractor told you, note the discrepancy and keep going, because stopping to reconcile it there ends the flow and makes the rest of the call more guarded. And follow the energy, not your list: if a small aside lights someone up, a story about a mistake and how it got fixed, a detail about the crew showing up early, let them run with it. That aside is usually where the real answer was hiding, not the next question you had planned.

The six questions, asked exactly the same way

This is the part that turns three separate conversations into one comparison, and it only works if the wording doesn’t drift from call to call — change even one word between reference one and reference three and you’re back to comparing a kitchen against a crew.

These are the same six listed at the top of the page, with what each answer actually tells you. Ask every reference you reach these six, in this order, worded the same way every time — they all point the same direction, so a reassuring answer always leans the same way:

What you never ask a contractor’s references

Notice what these six aren’t. None of them ask about the contractor as a person — nothing about age, race, religion, national origin, disability, pregnancy, family or marital status, or medical history. None of that tells you anything about the work, and none of it belongs in a reference call or in a conversation with the contractor. Keep every question pinned to documented conduct: what happened, when, and how it was handled.

If a reference volunteers something in that territory anyway — and occasionally one will, usually meaning no harm by it — don’t write it down, and don’t let it weigh on your decision in either direction. Steer the call back to the six questions and carry on.

When a reference won’t say, that’s an answer too

A reference who confirms the dates without a beat of hesitation and then goes quiet, twice, the moment you ask about the final cost has told you something specific. Don’t leave that box blank and move on. Write down exactly what happened — hesitated on cost, quick and easy on everything else — because that pattern is the answer, not the absence of one.

When two references glow and one hedges

This is not a 2-to-1 vote you can round up from. Look at which of the six questions the guarded reference actually hesitated on. A complaint that clusters around schedule and communication is a different kind of problem than one that clusters around the standard of the finished work — and either one is worth chasing down with a fourth reference before you decide which it was, or whether it was simply a fluke.

Save these two for last

Two questions belong at the very end of the call, once things have warmed up and the reference has already told you a story or two.

First: would you use them again, for something bigger than this job. That’s a step past the second of the six, which asks only whether they’d hire again at all — this one asks whether they’d hand over something larger, which is a question about whether the relationship survived contact with an actual problem.

Second: who else should I be talking to. A reference you find this way wasn’t selected for your benefit the way the original three were, and one name that comes to you sideways can be worth more than the whole curated list you started with.

References tell you what they’re like. Verification tells you if it’s true.

Reference calls answer one question — what is this person like to work with. They don’t answer a second, entirely separate one: is what they told you about their credentials actually current. That’s a paperwork check, not a phone call, and skipping it because the calls went well is how a genuinely well-liked contractor still turns out to be working without valid insurance.

Do the check that’s easiest to skip: don’t compare the expiration date on a license or certificate of insurance to today’s date. Compare it to the date the job is expected to end. A policy that’s perfectly valid the morning you check it can lapse three weeks before the roof is actually finished, and “valid when I looked” is exactly the gap that can leave the last stretch of the work without the coverage you assumed was there.

A few more things worth confirming while you’re at it:

• Look the license up by number on the issuing body’s own records, rather than trusting a card or the lettering on a truck door.
• Ask for the certificate of insurance sent directly by the agent, not forwarded by the contractor — a forwarded document can be edited before it ever reaches you.
• Read the policy limits themselves, not just whether a policy exists. A certificate can be entirely current and still cover far less than the job in front of you.

This isn’t legal advice

Licensing categories, insurance minimums, and what a contractor is required to carry all differ by state, county, and sometimes city — this is general guidance on how to run the conversation and the paperwork check, not a statement of what the law requires where you live. Nothing here runs a search or checks anyone on your behalf: it is a way to ask better questions and write down what you are told. If you do decide to run a background or credit check on someone, use a screening service that complies with the law where you are and get written consent before you do. Check your own jurisdiction’s requirements directly before you rely on anything a reference or a certificate tells you. Nothing here, and nothing in the workbook below, is a background-check service. The workbook records what you find; it doesn’t search for anything or screen anyone.

The printable and the workbook

None of this needs anything more than a phone, a notebook, and the discipline to ask the same six things the same way three times in a row — that discipline is the entire method, and you can run it with nothing but a pen.

If you’d rather not run it from memory, the free contractor reference-check questions printable is 24 questions with the six probes on a print-and-use call sheet — no signup, nothing to fill in first. The Reference & Vetting Tracker is the paid workbook the printable comes from: it puts the same six worded-identically probes in front of you for every reference, counts the probes your references disagreed on, and carries a verification ledger that measures every license and certificate against the day your job actually finishes rather than the day you happened to look.

If the paperwork on the other side of the reference calls is a contract rather than a credential, the Contract & Deposit Red-Flags Review Checklist is built for the clauses instead of the calls. And if the whole reason you’re vetting a contractor in the first place is a home you’re deciding whether to buy or keep, the True Cost of Homeownership Calculator works out the other half of that decision.

The hardest part of a reference check

It isn’t finding the questions. It’s making the second and third call sound exactly like the first one — resisting the pull to chat, to follow whatever the reference brings up, to let a good conversation wander wherever it wants to go instead of through the same six stops. Ask the six the same way every time, write down the hesitations as answers, and check the paperwork against the day the work ends, not the day you happened to look. That’s the whole method, and it’s the discipline, not the cleverness, that makes it work.