12 Questions to Ask Before You Hire a Contractor

Twelve questions that separate solid contractors from costly mistakes, with the line-item logic and dollar ranges behind each one.

a man sitting at a desk talking to a woman

A homeowner sent me two bids for the same bathroom remodel last spring. One came in at $14,200, the other at $22,800. Same square footage, same tile, same fixtures listed. The $8,600 gap was not better workmanship. It was a vague scope on the cheap bid that left out the plumbing rough-in, the permit, and the demo haul-away, plus a fat contingency baked into the expensive one that nobody explained.

That is the whole problem with hiring. The price you are quoted is rarely the price you pay, and the difference usually lives in questions you did not ask. I spend my days pulling quotes apart into labor, materials, and permits, and the same dozen questions surface every time as the ones that actually move the number.

Ask these before you sign anything. Each one either protects your budget or exposes where a price really comes from.

1. Are you licensed and insured, and can I see both?

This is the cheapest insurance you will ever buy: it costs you a five-minute phone call to verify. A contractor without general liability and workers' comp turns your homeowners policy into the backstop if someone falls off a ladder on your property.

Ask for the certificate of insurance and call the carrier to confirm it is current. A general liability policy in the trades usually runs the contractor roughly $600 to $2,500 a year, so anyone skipping it is cutting a corner that ends up on your bill if something goes wrong.

Verify, do not trust

A license number printed on a truck means nothing until you check it against your state board's online lookup. It takes two minutes and catches expired or borrowed credentials fast.

2. Can you give me a line-item quote, not a single number?

One lump sum hides everything. I will not let a client sign a quote that says "kitchen remodel: $38,000" with no breakdown, because that single number could be 60 percent labor or 40 percent labor and you have no way to tell.

A real estimate separates demolition, materials, labor, permits, and cleanup. On a mid-range kitchen, expect labor to land around 35 to 45 percent of the total, cabinets and counters another 30 to 40 percent, and the rest split between appliances, permits, and disposal.

When the line items are visible, you can shop the padding. Maybe the cabinets are marked up 25 percent and you would rather supply your own. You cannot make that call against a black box.

3. Who is actually doing the work?

The person who walks your job and sells you the bid is often not the person swinging the hammer. Plenty of contractors subcontract the tile, the electrical, and the plumbing to separate crews, which is fine, but you want to know who and whether they carry their own insurance.

Subbed-out trades also add a markup layer. A general contractor typically tacks on 10 to 20 percent over what the sub charges, so a $3,000 electrical rough-in might show up as $3,600 on your invoice. That is not a scam, it is coordination, but you should know you are paying for it.

4. How do you structure payments?

Never pay in full up front, and be wary of anyone who asks for more than a third before work starts. A healthy deposit covers materials and mobilization, not the contractor's entire profit.

A typical structure on a $20,000 job looks like 10 to 30 percent down, then progress payments tied to completed milestones, with a final 10 percent held until the punch list is done. I walk through the math in more detail in our breakdown of a fair contractor payment schedule, but the principle is simple: your money should always trail the work, never lead it.

Red flag

A demand for 50 percent or more before a single nail is driven is one of the clearest warning signs in the trade. It often shows up alongside the other tactics we cover in how to spot home improvement scams.

5. What is your timeline, and what blows it up?

Ask for a start date, a rough end date, and the three things most likely to delay it. The honest answer almost always includes material lead times and permit approval, because those are outside the crew's control.

Delays cost real money when they push you into a second month of rented equipment, a longer hotel stay, or storage fees on your furniture. A dumpster rental alone runs roughly $400 to $700 a month, so a job that drags two weeks past schedule quietly adds a few hundred dollars you never budgeted.

Ask about their current workload

A contractor juggling six jobs may park your project for a week to chase a bigger one. Ask how many active jobs they are running and whether your crew is dedicated or shared.

6. What happens if the price changes mid-job?

Change orders are where budgets quietly bleed out. The moment the crew opens a wall and finds rot, knob-and-tube wiring, or a surprise that was not in the scope, the price moves, and you want that process defined in writing before it happens.

A fair contract spells out that any change over a set dollar amount, say $250, needs your written approval with a price attached before work continues. Without that clause, you can get handed a $4,000 surprise at the end and be told it was "obviously necessary."

Budget the unknown

On any project touching walls, plumbing, or older wiring, set aside a contingency of 10 to 20 percent of the total for things nobody could see in the bid. On a $30,000 job that is $3,000 to $6,000 you hope not to spend.

7. What does your warranty actually cover?

"We stand behind our work" is not a warranty. Get the specifics: how long, what parts, and labor or materials or both.

A typical workmanship warranty runs one to two years, while installed products carry the manufacturer's own coverage, sometimes 10 years or more on a roof or a water heater. Know which is which, because a labor warranty that expires in 12 months does you no good when a tile job fails in month 14.

8. Can I talk to three recent clients?

Not a curated list of best friends, but three jobs from the last six months similar to yours. The questions that matter are whether the final price matched the quote and whether change orders were explained or sprung as surprises.

Ask specifically: did the project finish within 10 percent of the original number? If three clients all say the final bill ballooned 30 percent over the estimate, you are looking at a lowball-then-upcharge pattern, and your number will do the same.

9. Will you pull the permits, or am I?

A contractor who asks you to pull the permit yourself is often trying to dodge accountability, because the permit holder is the one the inspector holds responsible. That should be the licensed pro, not you.

Permit costs vary widely by locality but commonly land between $150 and $2,000 depending on scope, and they belong in the line-item quote. If permits are missing from the bid entirely, the price is incomplete and the apples-to-apples comparison you thought you were making is broken.

10. How do you handle cleanup and disposal?

Demolition debris does not vanish, and hauling it is a line item with a real number behind it. A kitchen gut can fill a 20-yard dumpster, and disposal plus hauling commonly runs $400 to $900.

If cleanup is not mentioned, ask whether it is included or billed separately. I have seen "final cleaning" appear as a $600 add-on at the very end on jobs where the homeowner assumed it was part of the deal.

11. What is your contingency, and is it in the quote?

Some contractors bury a contingency cushion inside the bid without telling you, which is exactly why one of my two bathroom bids was $8,600 higher. Ask directly whether a buffer is included and how much.

A disclosed contingency is fine and honest. A hidden one inflates your comparison and means you might be paying a premium for risk that never materializes. If money is tight across a larger project, our guide to building a realistic whole home renovation budget shows how to allocate that buffer across rooms instead of letting each contractor pad it twice.

12. What is not included in this price?

The single most valuable question on the list. Every quote has exclusions, and the cheap bids win precisely because they leave the most out.

Common omissions: painting after the work, patching the wall where a fixture moved, electrical upgrades the new layout requires, and disposal. Make the contractor say out loud what falls outside the number, then add those costs back before you compare two bids. That $14,200 bathroom I mentioned was only cheaper until you added the $3,100 of work it quietly excluded.

The pattern to watch

A trustworthy bid is specific, written, and tied to milestones. A risky one is a round number, a verbal promise, and a big deposit. The questions above mostly exist to push a vague bid toward a specific one, because specific is where your budget is safe.

Is the lowest bid ever the right choice?

Sometimes, but only after you have normalized all bids for scope. A low number that excludes permits, disposal, and patching is not actually low. Add the missing line items back, compare like for like, and the cheapest honest bid often sits in the middle of the pack.

How much should I expect to pay a contractor up front?

A deposit of 10 to 30 percent is standard, scaled to cover materials and mobilization. Anything approaching half before work begins is a reason to pause and ask exactly what that money buys before the crew shows up.

What if the contractor refuses to give a line-item quote?

Treat it as your answer. A pro who tracks costs can break them out in an afternoon, and one who will not is either disorganized or hiding the markup. Either way, you cannot protect a budget you cannot see, so keep shopping.

Hiring is not about finding the cheapest hand, it is about finding the bid you can read all the way down. Ask these twelve questions, write the answers into the contract, and most of the expensive surprises lose their hiding spots. The contractor worth keeping will answer every one without flinching, because the honest ones price the same way I read a quote, one line at a time.