Hiring a contractor is one of the biggest decisions you will make as a homeowner. Whether you are remodeling a kitchen, replacing a roof, or finishing a basement, the person you choose affects your budget, your timeline, and how much stress you carry for the next few months.

The good news: most bad experiences can be avoided with the right questions up front. Use the 12 questions below to compare contractors fairly and spot problems before they cost you money.

1. Are you licensed and insured?

Requirements vary by state and trade, so check what your state requires, then ask to see the license and proof of insurance. Ask for general liability coverage and workers’ compensation. Verify both directly with the issuer instead of relying on a photocopy.

2. Can I see examples of similar projects?

A contractor who has built dozens of bathrooms may not be the right fit for a whole-home addition. Ask for photos and, if possible, addresses or references from projects close to the size and scope of yours.

3. Can you give me recent references?

Call at least two or three past clients. Ask whether the project finished on time, whether the final cost matched the estimate, and how problems were handled when they came up.

4. Who will actually be doing the work?

Many contractors use subcontractors for specialty work like electrical or plumbing. That is normal, but you should know who will be in your home, who supervises them, and who is responsible if something goes wrong.

5. What is included in the written estimate?

A solid estimate lists materials, labor, brand or product allowances, permits, cleanup, and disposal. Vague line items like “miscellaneous” make it hard to compare bids. Get at least three written estimates for the same scope of work.

6. Who pulls the permits?

Most structural, electrical, plumbing, and roofing work requires permits. A professional contractor handles this and builds it into the plan. Be cautious if a contractor suggests skipping permits to save time or money, because unpermitted work can create trouble when you sell or file an insurance claim.

7. What is the payment schedule?

Payments should be tied to project milestones, not just dates. Be wary of large upfront payments, and check what your state allows for deposits. Never pay the full amount before the work is complete.

8. What is the timeline, and what could change it?

Ask for a start date, an expected completion date, and what typically causes delays, such as material lead times or weather. A good contractor explains this clearly instead of promising the impossible.

9. How do you handle changes and surprises?

Older homes in particular can hide issues behind the walls. Ask how change orders work, and make sure any change in scope or price is agreed to in writing before the work happens.

10. What warranty do you offer?

Ask what is covered, for how long, and who to call if an issue appears after the job is done. Get the warranty terms in writing, for both labor and materials.

11. How will we communicate during the project?

Ask who your main point of contact is, how often you will get updates, and how quickly questions are answered. Communication problems cause more frustration than most people expect.

12. Will everything be in a written contract?

The contract should include the full scope of work, total price, payment schedule, timeline, materials, warranty, and how changes and disputes are handled. If it is not in writing, treat it as not agreed.

Contractor red flags to watch for

Pressure to sign or pay today because of a “special price”
A large cash-only deposit
No physical business address, license number, or proof of insurance
Estimates that are far lower than every other bid
Unwillingness to put anything in writing

Don’t hire until you have a plan

You do not need to memorize these questions. We put them, along with space to compare estimates side by side, into a simple printable checklist you can bring to every contractor meeting.

Download the free pre-hire contractor checklist

The bottom line

Take your time, compare at least three bids, check references, and get everything in writing. A little homework before you hire can save you thousands of dollars and months of headaches.

Ready to talk about your project? Contact Ace Estates for guidance on your next home improvement.

Disclaimer: This article is general educational information. Licensing, permit, and contract rules vary by location, so confirm requirements with your local authorities.

How to Hire a Contractor: 12 Questions to Ask Before You Sign