What questions should I ask a custom home builder before hiring them?

Before you hire a custom home builder, ask a focused set of questions across eight areas: their license, their references and finished homes, their contract and pricing, their allowances, their change-order process, the schedule, how they communicate, and their warranty. The goal is not to trip the builder up. It is to confirm the person who will run a year-long, several-hundred-thousand-dollar project is licensed, transparent, and willing to put answers in writing. A good builder welcomes every question on this list. A weak one gets vague or annoyed, and that reaction is its own answer.

This page is the consolidated checklist. Each section links to the deeper page on that single topic, so you can ask the question here and dig into the detail when you need it. Bring this list to the first real meeting and write down what you hear.

Questions about license, references, and past work

Start with the questions that prove a builder is real and accountable, because everything else rides on it. In Arizona, residential builders are licensed by the Arizona Registrar of Contractors (ROC), so the first three questions are non-negotiable:

• What is your ROC license number? A good builder gives it without hesitation. Run it through the free license search at roc.az.gov and confirm the status reads Active, the class is B (General Residential Contractor), the class for building a whole home, and the name matches the business you are hiring.
• Can I have a list of recent client references? The ROC's consumer guidance tells buyers to "request a list of references and check them." Ask for clients from the last year or two, then actually call them.
• Which finished homes can I walk through? Ask to see three to five completed homes, including some that are three to five years old and have been through a few Arizona summers. New homes hide nothing because nothing has aged.

For the full how-to on each, see how to verify an Arizona contractor license with the ROC, how to check a builder's references and past work, and what to look for when touring a builder's past homes. A builder who passes these three is showing you they are legitimate and proud of their work.

Questions about the contract, price, and allowances

Ask exactly how the deal is structured and priced, because the contract is where good intentions become enforceable promises. Three questions separate a clear builder from a vague one:

• Is this fixed-price or cost-plus? A fixed-price contract is one total to deliver the finished home. A cost-plus contract bills the actual cost plus the builder's fee. You cannot compare two bids until you know which model each uses. See cost-plus vs fixed-price home contracts.
• What does the written contract include? Under A.R.S. 32-1158, any Arizona home construction contract over $1,000 must state the price including taxes, the deposit, the completion date, and each progress payment tied to a construction stage. Ask to see a sample contract and confirm those terms are there. See what to include in a custom home contract.
• How do you set allowances? An allowance is the dollar amount your contract sets aside for an item you have not picked yet, like flooring or cabinets. Ask where buyers in your finish range actually land, so the allowances are realistic and not lowballed to make the bid look cheap. See what a builder allowance is and what happens if you go over and the allowance glossary entry.

A builder who walks you through the contract line by line, and sets honest allowances, is telling you they intend to be straight with you about money for the whole build. For reading competing bids fairly, see how to compare builder bids and quotes.

Questions about change orders, schedule, and communication

Ask how the builder handles the three things that go sideways most often during a real build: changes, time, and contact. The bid tells you the plan. These questions tell you how the builder behaves when the plan moves:

• How are change orders handled? A change order is a written, signed document that adjusts your price and scope when you change something or pick a selection over its allowance. Ask whether every change gets priced and approved in writing before the work happens. The answer should be yes, every time. See the change order glossary entry.
• What is the realistic schedule, and what could move it? Ask for a real timeline and the honest risks, like long-lead windows or cabinets, permit review, and monsoon weather between June 15 and September 30. A builder who promises a suspiciously fast finish is either guessing or selling.
• Who is my single point of contact, and how often will I hear from you? Ask who runs your job day to day and what the update cadence is. How a builder communicates during bidding previews how they will communicate mid-build. See how important communication is during a custom build.

It is also fair to ask what software or client portal they use to share the schedule, selections, change orders, and photos. A builder running an organized job usually has a real system, not a folder of texts. See what a builder's client portal should show you.

Questions about warranty and standing behind the work

Ask what happens after you move in, because a good builder thinks of the warranty as part of the build, not an afterthought. Three questions close the loop:

• What does your warranty cover, and for how long? Most builder warranties follow the 1-2-10 pattern: one year on workmanship and finishes, two years on systems like plumbing and electrical, and ten years on major structural defects. Ask for the written warranty and read it. See how long a builder warranty lasts in Arizona.
• How do I submit a warranty claim, and how fast do you respond? Ask whether claims go through a portal or a form, and what their typical response time is. Ask if they do a builder-initiated walkthrough near the end of year one. See how builders handle warranty callbacks and the one-year walkthrough.
• What is your complaint history with the ROC? One old resolved complaint across years of building is normal. A pattern is not. You can check this on the same ROC license search you used earlier.

Behind every written warranty sits Arizona's implied warranty of workmanship and habitability, which courts attach to every new home, and A.R.S. 32-1162, which gives you two years from the earlier of close of escrow or occupancy to file an ROC complaint on a new home. A builder who answers warranty questions plainly is one who expects to stand behind the house.

Put the whole list together and a simple test emerges: a good builder answers every question, shows you proof, and is glad to put it in writing. For the positive signals to look for, see the green flags of a good custom home builder, and for the warning signs, see the red flags that a builder is not legitimate. At Jematell Homes we hand over the license number, references, finished homes you can walk, a contract that meets A.R.S. 32-1158, realistic allowances, and a written warranty, because the questions a careful buyer asks are the ones we want to answer.

Where Jematell Homes comes in

Transparency, a real license, and a written scope are how we work. If you are planning a custom home in Scottsdale, Rio Verde, or the greater Phoenix metro, we are happy to walk through your project.

Sources

• Arizona Registrar of Contractors: Before You Hire a Contractor
• A.R.S. 32-1158 (Home construction contract requirements)
• Arizona Registrar of Contractors (ROC) license search
• A.R.S. 32-1162 (Two-year deadline to file an ROC complaint on a new home)