Questions to Ask Before Hiring a Remodeler or Contractor (2026)

Hiring the wrong contractor is the most expensive mistake you can make on a remodel, addition, or custom home - and the entire risk is decided in a conversation before any money changes hands. The good news is that the questions that separate a professional from a problem are simple, and the right answers are easy to recognize once you know what to listen for. This guide walks through the essential interview questions - license, insurance, references, permits, timeline, payment schedule, subcontractors, warranty, and change orders - and what a solid answer sounds like for each. If you are still deciding how you want the project delivered, start with our hub on design-build vs. general contractor; for a step-by-step vetting process, pair this with how to choose a contractor in the Bay Area.

What questions should you ask a contractor before hiring?

Ask for the CSLB license number, proof of general liability insurance and workers' comp, similar completed projects and references, a realistic timeline, the payment schedule, who pulls the permits, which work is subcontracted, the warranty, and how change orders are handled. Those nine questions cover the three things you are really testing: is this contractor legal and insured, do they have a track record on projects like yours, and is their business run on paper instead of on handshakes.

The point of the interview is not to trip anyone up - a good contractor answers all of it comfortably and often volunteers the paperwork before you ask. What you are watching for is the pattern of the answers. Specific, documented, and relaxed is the profile you want. Vague, defensive, or "trust me" is the profile you walk away from. The sections below group the questions the way they naturally come up in a first meeting, and the checklist puts all of them in one place you can bring to the table.

The must-ask questions checklist

Every one of these belongs in a first conversation. Print the table, ask each question out loud, and note not just the answer but how readily it comes. A contractor who has done this professionally for years will move through the whole list without hesitation.

If you only have time for three, make them the license number, the payment schedule, and who pulls the permits - those three flush out most unlicensed and unprofessional operators fast. The next two sections explain what to listen for on each group of questions.

Questions about license, insurance, and permits

In California a contractor license is required for any job of $500 or more in combined labor and materials, so the license number is the first thing to ask for and the easiest to verify. Look it up on the California State License Board (CSLB) website and confirm it is active and matches the business name on your contract. A legitimate contractor gives you the number without flinching; hesitation here is the single biggest warning sign in the whole interview.

Next, confirm coverage. Ask for a certificate of general liability insurance and workers' compensation, and confirm the contractor is bonded. Workers' comp matters more than people realize: if an uninsured worker is hurt on your property, you can be the one left exposed. These documents should arrive as PDFs or certificates, not as a verbal assurance.

Finally, permits. The rule is simple - the contractor should pull the permits, not the owner. In San Jose, permits are filed through the city portal at SJPermits.org. Simple like-for-like work can be handled over the counter, while anything structural or that adds square footage goes through plan review, then inspections during construction and a final sign-off. As of January 1, 2026, the 2025 California Building Codes are in effect, so a current contractor should be fluent in what they require. A contractor who wants you to pull an "owner-builder" permit to save themselves the paperwork is shifting legal responsibility onto you - a serious red flag. Our permitting service handles this end to end, and the same standards apply whether you build a remodel, an architecture-led design, or a custom home.

Questions about timeline, payment, and change orders

A realistic timeline is one that starts before construction. A professional will describe the full path - design, permitting, then the build - because permitting alone can run from same-day over-the-counter to several weeks of plan review depending on scope. If someone promises to start swinging hammers "next week" on a project that clearly needs plans and a permit, they are either cutting corners or setting up for delays and change orders later. Ask them to walk you through the phases: design, permitting, site prep and foundation, framing, MEP rough-in, insulation and drywall, finishes, then inspections and final sign-off.

On payment, California law is specific and worth memorizing: the down payment on a home-improvement contract is capped at 10% of the contract price or $1,000, whichever is less. Any contractor asking for more up front - or for cash to "get started" - is violating that cap and telling you exactly who they are. The rest of the payments should follow a milestone schedule tied to completed, inspectable work, not a calendar. The table below shows what a healthy structure looks like versus the warning signs.

Change orders are the last piece and the one that quietly wrecks budgets. A change order is a written amendment that documents a scope change, its cost, and any schedule impact before the work is done. Ask directly how they are priced and approved. The answer you want is "in writing, signed by both of us, before we build it." The answer you fear is "we'll just settle up at the end." Delivery method shapes how often these come up - a single accountable team tends to issue fewer change orders because the people who designed the project are the ones building it, a difference we cover in the design-build vs. general contractor hub.

What good (and bad) answers sound like

Across every question, a good answer shares three traits: it is specific, it is documented, and the contractor is unbothered that you asked. A pro expects these questions from a serious client and often produces the license number, insurance certificates, and reference list before you finish asking. That ease is itself the signal - it means the paperwork exists and gets shown to every client.

Bad answers cluster around vagueness and pressure. Here is the contrast for the questions that matter most:

• License: Good - "It's CSLB #XXXXXX, look it up, it's active." Bad - "I've been doing this twenty years, I don't really need one for this."
• Insurance: Good - "Here's my certificate for liability and workers' comp." Bad - "My guys are careful, we've never had a problem."
• Permits: Good - "We'll pull the permit and manage the inspections." Bad - "We can skip the permit and save you the fees."
• Down payment: Good - "Ten percent or a thousand dollars, whichever is less, then we bill by milestone." Bad - "I need half up front, in cash, to lock you in."
• Change orders: Good - "Everything gets written up and signed before we build it." Bad - "Don't worry, we'll figure out the extras at the end."

The through-line is that professionals run on paper and amateurs run on promises. Any single vague answer is worth a follow-up; a pattern of them, or any request to skip permits or pay cash, is your cue to keep interviewing. For a structured way to score contractors against each other, use the full Bay Area vetting checklist, and see the full menu of what a design-build studio delivers on our services page.

Real Bay Area projects

UniqHaus is a San Jose design-build studio that carries a project from first sketch to final inspection - architecture, interior design, 3D visualization, permitting, and construction under one roof. That single-contract model answers most of the questions above by design: one licensed, insured team is accountable for the whole job, one payment schedule is tied to real milestones, and permits are pulled and managed in-house rather than pushed back onto the homeowner. Across our Bay Area portfolio of remodels, additions, ADUs, and custom homes, the same standards apply from the first meeting to the final walk-through.

The clearest way to judge any contractor is to see finished work and talk to the people behind it, so browse our project portfolio to see the quality and range firsthand. Homeowners in San Jose and the surrounding Bay Area can see how we work in each area. When you are ready to put these questions to a team that welcomes them, the next step is a conversation - start a conversation with UniqHaus.

Frequently Asked Questions

What questions should you ask a contractor before hiring?

Ask for the CSLB license number, proof of general liability insurance and workers' comp, similar completed projects and references, a realistic timeline, the payment schedule, who pulls the permits, which work is subcontracted, the warranty, and how change orders are handled.

Does a contractor need a license in California?

In California a contractor license is required for any job of $500 or more in combined labor and materials. Verify the license is active on the California State License Board (CSLB) site, and confirm general liability insurance, workers' comp, and bonded status before signing.

Who should pull the permits, me or the contractor?

The contractor should pull the permits, not the owner. In San Jose permits are filed at SJPermits.org. Simple like-for-like work can be over-the-counter, while structural work or added square footage needs plan review, followed by inspections and a final sign-off.

How much of a down payment can a contractor ask for?

California law caps the down payment on a home-improvement contract at 10% of the contract price or $1,000, whichever is less. Any contractor asking for more up front is a red flag. The rest should follow a milestone schedule tied to completed work.

What does a good answer from a contractor sound like?

A good answer is specific, documented, and unbothered by the question: a license number you can look up, insurance certificates, named references, a phased timeline, and a written change-order process. Vagueness, cash-only requests, or pressure to skip permits are the warning signs.

What is a change order and why does it matter?

A change order is a written amendment to the contract that documents a scope change, its cost, and any schedule impact before the work happens. Ask how they are priced and approved, and make sure nothing gets built off a verbal agreement.