Questions to Ask Before Hiring a Home Builder
What 40 years of Arizona construction teaches you about picking the right builder
Most homeowners regret not asking enough questions before signing. Licensing, contract structure, insurance coverage, and communication habits are all things you can verify up front. This guide covers 15 specific questions to ask any builder, what good answers look like, and what to do if the answers are vague. Arizona has specific licensing and legal protections worth knowing.
Licensing and credentials in Arizona
Arizona requires all contractors working on projects over $1,000 to hold a valid license from the Registrar of Contractors (ROC). For residential construction, that means a B General Residential Contractor license at minimum.
The B license authorizes a contractor to build or repair all parts of a residential structure. Work involving electrical, plumbing, HVAC, swimming pools, and water wells must be subcontracted to separately licensed specialty contractors. If a builder tells you they handle electrical or plumbing in-house with no specialty license, that is a problem worth verifying.
Every licensed contractor has an ROC number. You can look up that number at roc.az.gov in about 30 seconds. The lookup shows the license status, expiration date, license classification, and any complaints or disciplinary actions on file. Do this before you have any money conversation.
What a qualifying party means
Arizona licenses are tied to a "qualifying party", a person at the company who passed the trade exam and has verified experience in the classification. When you look up a builder's license, you can see who the qualifying party is. If that person has left the company, the license may be in a grey area. It is worth asking directly: "Is your qualifying party still actively involved in the company?"
Surety bond requirements
Arizona contractors are required to carry a surety bond. The bond amount depends on license classification and annual revenue, ranging from $2,500 to $100,000. Residential contractors also pay into the Residential Contractors' Recovery Fund, or they must post a $200,000 surety or cash bond as an alternative. That fund exists specifically to compensate homeowners when a licensed contractor causes damage or abandons a project.
The state does not require contractors to carry general liability insurance, that is worth knowing. Bonding and insurance are different things. Ask for both and ask to see proof of current coverage.
Experience and portfolio, what to actually look at
Years in business is less informative than number of completed projects similar to yours. A builder who has been around for 20 years but focuses on commercial work is not the same as someone who has built 50 custom homes in your price range.
When you ask to see past work, push for specifics. How many homes have they completed in the last 3 years? What was the average square footage? What neighborhoods? Budget ranges? A builder who can answer these with actual numbers has done the work. Vague answers are a signal.
References worth calling
Any builder can hand you a list of happy clients. Ask for references from projects that ran over a year ago, those homeowners have had time to see how their home held up and whether the builder responded to warranty issues. Also ask if you can speak with a client whose project had a problem. How a builder handles problems is the real test.
When you call references, ask three things. First: did the project finish on time? Second: did it finish within budget? Third: would you hire them again? The third answer is the one that matters most.
Subcontractor relationships
Custom home builders do not build homes alone. They manage a network of subcontractors, framing crews, electricians, plumbers, tile setters, painters. Ask whether the builder uses consistent subs or pulls whoever is available. Builders who work with the same subcontractors regularly get better results because communication and expectations are already established. When a builder says "we have relationships with our subs going back 15 years," that tells you something real.
Contract and pricing structure
How a builder prices your project shapes your entire financial exposure. There are two main structures: fixed-price and cost-plus. Each one has real trade-offs.
Which structure is better?
For most custom home projects, fixed-price contracts put risk on the builder rather than on you. Research from CoConstruct analyzing over 60,000 projects found that average profit margins on fixed-price contracts were 28% higher for builders, meaning they are priced with contingency built in. You pay for that certainty. Cost-plus gives you more visibility into where money is going but requires more financial trust in the builder and more active management of decisions.
Neither structure is inherently bad. The issue is when the structure is unclear, or when a builder cannot explain the terms in plain language.
Change orders, the real budget risk
The contract structure matters less than how change orders are handled. Change orders are written amendments that document any scope change and its cost before work begins. Builders who allow verbal change orders, or who are vague about pricing scope changes, put you at risk of surprise costs at the end. Ask the builder to show you a sample change order form and describe the process. A good answer sounds like: "Nothing changes without a signed change order. We price it before we touch it."
Payment schedule and Arizona law
Arizona law prohibits residential contractors from collecting more than one-third of the contract price as a down payment, or the cost of special-order materials (whichever is less). If a builder asks for 50% upfront, they are violating state law. A legitimate payment schedule is tied to construction milestones: foundation, framing, rough-in, drywall, completion. If the schedule does not track to actual progress, ask why.
Insurance and bonding, what to verify
Arizona does not require contractors to carry liability insurance. That makes asking for it more important, not less. Without it, damage to your property or an injury on your jobsite can become your financial problem.
There are three types of coverage worth asking about specifically.
General Liability Insurance
Covers property damage and bodily injury caused by the contractor's work. For a custom home build, you want at least $1 million per occurrence. Ask for a certificate of insurance naming you as an additional insured on the policy.
Workers' Compensation
Arizona requires workers' comp for any business with at least one employee. If a worker is injured on your property and the builder has no workers' comp, you may be liable. Verify coverage includes all subcontractors on the job.
Contractor's Bond (ROC)
Required by the Arizona ROC. The amount depends on annual revenue and license classification. Residential contractors also pay into the $200,000 Residential Contractors' Recovery Fund as an additional protection layer for homeowners.
How to verify coverage
Ask for certificates of insurance before signing any contract. Certificates should come directly from the builder's insurance agent, not a photocopy from the builder. Check that the policy is current, expiration dates matter. For the bond, you can confirm it is active through the Arizona ROC's online lookup at roc.az.gov.
Arizona lien law, a homeowner protection you should know
Under Arizona's mechanics lien law, only a claimant with a direct written contract with the owner-occupant can place a lien on a single-family dwelling. That means your general contractor can lien your property if you do not pay, but subcontractors and suppliers generally cannot for owner-occupied residences. Subcontractors are required to send a 20-day preliminary notice within 20 days of first providing labor or materials. If you receive one of these notices, it does not mean there is a problem, it is a standard legal step. Keep them and show them to your builder.
The 15 questions to ask before hiring any builder
Print this list. Bring it to your first meeting. A builder who gets annoyed by due diligence is telling you something important.
- What is your Arizona ROC license number, and what classification is it? Look it up yourself at roc.az.gov. Confirm the license is active, the classification matches residential construction, and there are no unresolved complaints.
- Who is the qualifying party on your license, and are they still with the company? The qualifying party passed the licensing exam and has the verified experience. If they have left, ask how the company has handled the license update with the ROC.
- How many homes have you completed in the last three years similar in size and budget to mine? A good builder has specific numbers. "About 8 to 12 per year" is a real answer. "Many" is not.
- Can I visit a home you completed and speak with that homeowner? Any builder confident in their work will say yes. If they stall or offer only names but no direct contact, be cautious.
- What does your contract structure look like, fixed-price or cost-plus? Either is acceptable. What matters is that the builder can explain clearly how pricing works, what happens when costs rise, and how change orders are handled.
- Walk me through your change order process. The right answer: every change is documented in writing, priced before work starts, and signed by both parties. No verbal approvals, no "we'll settle up at the end."
- What is the payment schedule, and what milestones does it track to? Payments should tie to completed construction phases. Asking for more than one-third of the total price upfront is a violation of Arizona law.
- Do you carry general liability insurance? Can you provide a certificate naming me as an additional insured? If the answer is no to either part, walk away or at minimum understand your exposure before signing.
- Do your subcontractors carry workers' compensation insurance? Subcontractor injuries on your property can expose you if coverage gaps exist. Ask to see sub coverage documentation.
- Who will be my primary point of contact on a day-to-day basis? Some builders are owner-operated and highly involved. Others assign a project manager you have never met. Know which you are getting before signing.
- How do you handle communication, calls, texts, a project management platform? The method matters less than consistency. Ask how often they send written updates and what the expected response time is for questions.
- What is the typical timeline for a project like mine, and what are the most common causes of delays? Good builders know where projects slow down: permit timelines, material lead times, weather delays in August. They plan for these. Builders who promise impossibly tight schedules without accounting for these realities are not being honest.
- What warranty do you provide, and how does the warranty process work? Arizona law requires a one-year workmanship warranty on new construction. Some builders offer longer coverage. Ask specifically how warranty claims are filed and what the response time is.
- Have you ever had a complaint filed against you with the Arizona ROC or the BBB? This is public information. Ask anyway. A builder who is honest about a past complaint and explains what happened demonstrates more integrity than one who pretends problems have never occurred.
- What makes your approach different from other builders in the area? The answer reveals values. Listen for things like process discipline, subcontractor relationships, communication standards, or design collaboration. Vague answers like "we care about quality" tell you nothing.
Red flags that should stop the conversation
Some things are recoverable deal points. Others are hard stops. Here is what falls into the second category.
Walk away from these
No ROC license or an expired one. Any contractor building a residence in Arizona without an active ROC license is operating illegally. The ROC lookup takes 30 seconds. If it shows no license, expired status, or a classification mismatch, stop the conversation.
Asking for more than one-third upfront. This is a statutory violation under Arizona law (A.R.S. § 32-1158). It also correlates strongly with contractors who take deposits and disappear. The Arizona Attorney General's office regularly issues warnings about this pattern.
No written contract, or pressure to skip one. A handshake deal gives you no legal protection. Every legitimate residential construction project in Arizona requires a written contract. If a builder pushes back on putting terms in writing, they are not a legitimate builder.
Discouraging you from pulling permits. Building permits exist so that inspectors can catch structural, electrical, and plumbing problems before walls close up. A builder who suggests skipping permits to save money is setting you up for problems you cannot see, and work that is illegal to occupy.
No physical address or local presence. Storm chaser contractors appear after hail seasons and monsoons. They have no local accountability. Verify the builder has a real local address, not just a phone number and a website.
Offering a suspiciously low bid. If one bid is 30–40% lower than the others, it is not because that builder is more efficient. It is because something is missing from their scope, or they plan to make it up in change orders. Low bids are where projects turn into disputes.
Slower yellow flags worth questioning
Some issues are worth noting but not immediately disqualifying if the builder has a solid explanation:
- Reluctance to provide direct references (not just names, but actual contact information)
- Vague answers about who will manage day-to-day on your project
- Unable to produce certificates of insurance on request
- No established process for change orders, just "we'll figure it out as we go"
- High-pressure tactics around timing or pricing ("this deal expires Friday")
- Complaints on file with ROC or BBB that the builder cannot explain or dismisses entirely
How to verify a builder in Arizona, step by step
You do not need to hire an attorney to do basic due diligence on a contractor. These five steps take less than 20 minutes and tell you most of what you need to know.
Check the ROC license at roc.az.gov
Go to roc.az.gov and search by business name or license number. Confirm: active status, correct license classification (B for residential), no expired bond, and no disciplinary actions. The site also shows complaints, both resolved and pending. One resolved complaint from 10 years ago is different from three open complaints in the last two years.
Search the BBB and Google reviews
Look up the company at bbb.org and search their name on Google. Pay attention to how the builder responds to negative reviews. A measured, professional response to a complaint says more than the complaint itself. Builders who argue with reviewers or dismiss concerns publicly tend to behave the same way on projects.
Verify current insurance with the builder's agent
Ask the builder for their insurance agent's contact information and request a certificate of insurance directly from the agent. Certificates should show current coverage dates, coverage limits, and list you as an additional insured where possible. A call to the agent also confirms the policy is actually in force, not just a printout of an expired policy.
Call at least two references from completed projects
Call, do not just text or email. Phone calls are harder to dodge and you get more honest answers when someone is speaking in real time. Ask whether they had problems and how the builder handled them. If a reference says the project was perfect with zero issues, they are either extraordinarily lucky or not being fully candid.
Review the contract with a real estate attorney before signing
A custom home is likely the largest purchase of your life. Paying $500 to $1,000 for an attorney to review the construction contract before you sign is money well spent. An attorney can flag unclear scope definitions, unusual payment terms, missing warranty language, or arbitration clauses that limit your options if things go wrong.
Design-build vs. traditional general contractor
How a builder is organized affects your process from day one. This is worth understanding before your first meeting.
| Factor | Design-Build | Traditional GC + Separate Architect |
|---|---|---|
| Who you work with | One firm handles design and construction | Architect designs; GC bids and builds |
| Single point of responsibility | Yes, one contract, one team | No, separate contracts with each party |
| Cost certainty | Higher, builder prices as design develops | Lower until full plans are complete and bid |
| Design flexibility | Moderate, builder's design team has style preferences | High, you hire the architect of your choice |
| Conflict between design and budget | Lower, same team is accountable for both | Higher, architect designs, GC prices, then negotiation happens |
| Timeline | Generally faster, design and preconstruction overlap | Slower, full design before construction begins |
| Best for | Homeowners who want one team and streamlined process | Homeowners with a specific architect or highly custom vision |
Neither model is universally better. The design-build model works well when you trust the builder's design team and want a tighter process. The traditional model works when you have a specific architect in mind or want a competitive bid after full plans are done. What matters is understanding which model you are entering and what your responsibilities are under each.
See our full guide to design-build vs. general contractor for a deeper comparison with cost implications.
Communication and project management expectations
Building a custom home takes 12 to 18 months. In that time, you will have hundreds of decisions to make and dozens of questions. How a builder communicates is not a soft preference, it directly affects the outcome of your project.
Set expectations before signing
Ask the builder to describe their communication process in specific terms. How often do you get written updates? Who do you call if there is a problem on site? What is the expected response time for a question? If the answer is "you can call me anytime," ask what happens when they are unavailable. A builder with no backup plan for communication is a builder who will go dark at some point.
Project management tools
Many builders now use project management platforms like Buildertrend or CoConstruct that give homeowners direct visibility into schedules, documents, photos, and financial summaries. These tools are not universally used, but their absence is worth noting. A builder who manages everything through text messages and spreadsheets has a higher risk of things slipping between the cracks on a complex custom home project.
How decisions get made, and documented
Every custom home involves hundreds of selections: tile, plumbing fixtures, cabinetry hardware, exterior colors, lighting, door hardware. These decisions often cascade, choosing one thing affects another. A good builder has a structured selection schedule and a documented process for recording what you chose and when. Builders who rely on memory for selections create disputes at the end about what was agreed.
The weekly site visit conversation
Ask whether you can visit the job site and how often. The answer should be yes, within reason. Builders who discourage site visits, or who require advance notice for every visit, are often trying to limit visibility into what is happening on site. You should be able to see your home being built. Coordinating visits is reasonable. Blocking them is not.
What to expect if things go wrong
Something unexpected happens on almost every custom home project, a subcontractor delay, a material back-order, a weather issue, a site condition that was not visible during planning. Ask the builder: "Tell me about a project where something went wrong. What happened and how did you handle it?" Their answer reveals how they operate under pressure. A builder who cannot recall any problems has either a perfect track record or a selective memory.
Frequently asked questions
Questions homeowners ask us regularly before starting the builder search process.
How many builders should I interview before choosing one?
Three is a reasonable number for most homeowners. Fewer than three and you do not have enough comparison. More than four and the process becomes exhausting and the decisions blur together. Get three bids, three sets of references, three contracts to compare. One will usually stand out clearly once you see the difference in how each builder communicates and documents their approach.
Is the lowest bid the biggest red flag?
Not always, but it is always worth understanding why one bid is significantly lower. A 5–10% difference is normal variance. A 25–40% difference usually means something is missing from the scope, the builder has cut corners on insurance or bonding, or they plan to recover margin through change orders. Ask the low bidder to walk through their bid line by line and compare it to the others. The missing items usually become visible quickly.
What does the Arizona ROC actually do if a builder harms me?
The ROC investigates complaints against licensed contractors and can order corrective work, revoke or suspend licenses, and issue civil penalties. For financial harm, the Residential Contractors' Recovery Fund can compensate homeowners up to $30,000 per transaction when a licensed contractor causes proven damages. Filing a complaint with the ROC starts at roc.az.gov. The process takes time, but it is a real option not available with unlicensed contractors, which is one of the biggest reasons licensing matters.
Can I hire an unlicensed builder if they are cheaper?
Technically no for projects over $1,000. Practically, you can, but you give up all ROC protections, cannot access the Recovery Fund, and may have difficulty getting a final inspection or certificate of occupancy, which means you cannot legally occupy the home. You also take on personal liability for any worker injuries on site since an unlicensed contractor almost certainly has no workers' compensation. The cost savings rarely survive contact with reality.
What is a typical warranty for a new custom home in Arizona?
Arizona requires a minimum one-year workmanship warranty on new residential construction. Many reputable builders offer longer coverage: two years on mechanical systems and ten years on structural defects. Get warranty terms in writing as part of the contract. Ask specifically what the claim process looks like, who you call, what the response time is, and whether the builder or a third party handles warranty work. Post-project responsiveness is one of the clearest separators between good builders and average ones.
Should I hire a home inspector for a new custom home build?
Yes. This surprises many homeowners. A private inspector hired by you (not the builder's own quality control person) can inspect at key phases: foundation, framing, rough-in, and pre-drywall. They are looking for the same things a municipal inspector looks for, but with more time and fewer projects to cover. The cost runs $300 to $600 per inspection. On a $1M+ home, that is a trivial expense for independent verification that work meets code before it is covered up.
How long does it take to build a custom home in Arizona?
Most custom homes in the Phoenix metro take 12 to 18 months from breaking ground to certificate of occupancy. Add 2 to 6 months for design and permitting before construction starts, so total time from first meeting to move-in is commonly 18 to 24 months. Larger or more complex homes can run longer. Phoenix area permit timelines vary by municipality, some cities process permits in weeks, others take months. Your builder should have a clear read on current permit timelines for your specific city. See our full custom home building process guide for a phase-by-phase timeline breakdown.
Ready to talk to a builder?
Fenn Rogers has built custom homes in the Phoenix metro for over 40 years. If you have questions about the process, licensing, or what a project like yours typically costs, we are happy to have that conversation, no sales pitch, no pressure.