A home project should leave you excited about the result, not wondering whether you missed something in the paperwork.
That’s especially true when the project affects your comfort, safety, savings, or ability to stay in the home the way you want.
Arizona gives homeowners a useful place to start: the Arizona Registrar of Contractors, usually called the ROC. The ROC licenses and regulates contractors and provides a public contractor search, complaint information, and consumer guidance.
Construction scams are on the rise, and paying close attention to your approach is worth taking seriously. In April 2026, the Arizona Attorney General warned homeowners about construction fraud involving casita and accessory dwelling unit projects, including large upfront payments, missing permits and contractor credentials that did not match the company doing the work.
1. Define the Job Before You Collect Bids
Write down what you want done and what a finished job should look like.
Include the parts that are easy to overlook: materials, removal of old materials, cleanup, protection of landscaping or furniture, start and completion expectations, and any accessibility details that matter to you.
A written scope helps contractors give more useful estimates. It also helps you compare the same job instead of comparing three different interpretations.
You can change the scope later. Just make sure the change is written down, priced, and understood by everyone.
2. Get at Least Three Written Estimates
The Arizona Registrar of Contractors recommends written estimates from at least three contractors.
Price matters, but the lowest number isn’t automatically the best value. Look for a clear description of labor, materials, timing, permits, and total cost.
Ask questions when one bid is much higher or lower than the others. The difference may come from material quality, work that was included or excluded, permit assumptions, or a contractor who didn’t understand the full job.
The Arizona Attorney General also recommends comparing multiple written bids and cautions homeowners to be skeptical when a price seems unusually low.
Be cautious if someone pressures you to sign immediately or discourages you from getting other estimates.
3. Verify the Exact License Record
Don’t stop when you see a license number on a truck, website, or proposal.
Use the ROC’s Contractor Search to confirm that the business is properly licensed. Check that the business name matches the proposal, the license is current, and the license classification covers the type of work you’re hiring for.
The ROC also recommends calling the phone number listed on the official license record to verify that the person negotiating with you is an authorized representative of the licensed contractor.
This matters because a polished salesperson and a real license number don’t necessarily mean the person or company in front of you is authorized to use that license.
4. Check References, Complaints, and Insurance
Ask for recent references from customers who had similar work completed. Then call them.
Ask whether the project started and finished reasonably close to the promised schedule, how changes were handled, whether the work site was kept orderly, and whether the contractor responded when a problem came up.
Review the public license record and complaint information available through the ROC.
If a contractor says the business is insured, ask for current documentation and confirm what the policy covers. The ROC notes that, with the exception of workers’ compensation requirements, a contractor isn’t required to carry insurance simply to hold an Arizona contractor license. The words “licensed, bonded, and insured” in an advertisement should be verified, not assumed.
5. Confirm the Permit Plan Yourself
Ask whether your project requires a permit, who will obtain it, and whether permit costs are included.
Permit rules depend on the project and the city or town where the property is located. Phoenix, Scottsdale, Mesa, Peoria, Surprise, and other Valley communities may use different processes.
The Arizona Registrar of Contractors says permits are ultimately the property owner’s responsibility, although many contractors obtain the permits and include the fees in the contract.
That makes it worth checking independently.
Contact your local building department or use its online permit system to confirm what your project requires. The City of Phoenix Planning and Development Department is one example of where homeowners can find permitting and residential construction information.
And if a contractor tells you a permit is “already in process,” ask to see documentation. The Arizona Attorney General specifically identified claims about permits that were never actually submitted as a warning sign in its 2026 casita-fraud alert.
6. Read the Contract From Beginning to End
The written contract should match the estimate you agreed to.
Look for the contractor’s correct business name and license number, a detailed scope of work, materials, total price, payment schedule, start and completion expectations, permit responsibility, cleanup, warranties, and how disputes or delays will be handled.
Pay particular attention to change orders. The ROC advises that change orders should be signed by both parties and should show how the change affects the total cost and timeline.
Don’t accept “we’ll figure that out later” for a part of the job that affects price, responsibility, or the finished result.
The Arizona Attorney General’s home-improvement guidance also recommends keeping the contract, change orders, warranties and correspondence related to the project.
7. Keep Payments Tied to the Work
A legitimate project may require money in advance for permits, fees, or special-order materials. That doesn’t mean payments should get far ahead of completed work.
Agree on a written payment or draw schedule tied to clear milestones.
Keep the contract, estimates, receipts, change orders, photos, emails, text messages, permit records, warranties and notes in one project file.
Good records help everyone stay organized. They may also become important if a disagreement occurs.
Two Minutes Now Can Save Months of Frustration
A license check can’t guarantee that every project will go perfectly. A detailed contract can’t prevent every delay. References can’t predict the future.
But these steps make it much harder for important details to stay hidden.
A trustworthy professional should be comfortable with a homeowner who asks questions, verifies information and wants the agreement in writing.
If you believe you’ve been the victim of contractor fraud, the Arizona Attorney General provides information for filing a consumer complaint, and the ROC provides its own process for filing contractor complaints.
This article provides general educational information, not legal advice. For questions about your contract, lien rights, remedies or a dispute, speak with a qualified Arizona attorney or the appropriate state or local agency.
