By the time you've found a shop you like, you want to believe in it. You've seen the finished cars in the lobby, you've shaken the owner's hand, and the deposit feels like the natural next step. It isn't. The deposit is the moment your leverage drops to almost nothing. Everything you do before it — every question you ask while you can still walk away clean — is the cheapest diligence available to you. A shop that can't, or won't, answer those questions plainly is telling you something more useful than any reference.
Why the pre-deposit window is the one that matters
Once your car is in their bay and your money is in their account, the conversation changes. Now you're a customer with a project in progress, and asking hard questions feels like an accusation. Before the deposit, the same questions are just diligence — the ordinary work of deciding who to trust with a five-figure restoration and the next eighteen months of your life.
So treat the interview as the interview. You're not there to be sold the finished car you already imagined. You're there to find out how this shop actually runs: how it bills, how it documents, how it communicates when things go sideways, and what happens if you ever need to leave. The point of a checklist isn't suspicion — it's that the checklist asks the questions you won't think to ask while you're standing in a clean lobby, excited about your car.
The eight categories
The Shop Vetting System organizes the work into 47 questions across eight categories. You don't have to ask all 47 in one sitting, but you should know which territory each one covers, because trouble tends to hide in the categories owners skip.
- A. Reputation, history, and credibility — how long they've operated, what they specialize in, what they don't take on.
- B. Capacity, scheduling, and workflow — how many cars are in the shop, where yours sits in the queue, how work actually flows.
- C. Process, documentation, and communication — what gets written down, photographed, and reported, and how often.
- D. Parts sourcing, originality, and scope discipline — how they handle original components and parts you bring yourself.
- E. Financials, deposits, and payment structure — how money is staged against work.
- F. Contract, change orders, and dispute resolution — what's on paper and what happens when scope shifts.
- G. Workshop, safety, and equipment — the physical conditions your car will live in.
- H. References, vetting, and audit trail — who will vouch for them, and what record exists.
That last category — references — is its own discipline, and we cover the questions to ask a shop's references separately. This piece stays on the questions you put to the shop itself, face to face, before any money moves.
The highest-leverage questions
A handful of questions do more work than the rest. They're the ones that map directly to how a project succeeds or stalls. Ask these plainly and listen to the whole answer.
- On payment: “Is payment tied to documented milestones, or do you require a large deposit upfront?” A healthy shop ties draws to completed, documented work. A large lump-sum deposit moves the risk onto you before a single bolt is turned.
- On documentation: “What's your photo and progress-report cadence, and what do I get between visits?” Silence between visits is where projects stall. You want a defined rhythm, not a vague promise to keep you posted.
- On access: “Can I inspect the car on reasonable notice at any stage?” A shop that conditions or refuses inspection is telling you something. The right answer is a simple yes.
- On the contract: “Will you work from a written contract with itemized scope and price, and milestone-tied payments?” Refusal here is a vetting signal in itself.
- On change orders: “What's your written change-order process and approval window?” Restorations grow. You want to know how growth gets priced and approved before it happens, not after.
- On parts and originality: “How do you handle original and matching-numbers components, and parts I source myself?” The answer reveals whether they respect your car's value or just their own parts margin.
- On separation: “If I needed to stop the project, what's the process to get my car, my parts, and my documentation back?” The answer reveals how they treat exits — and how they think about whose property this really is.
Watch how they answer, not just what they answer
Here's the part most checklists miss. You're not testing whether the owner has the right answer memorized. A polished answer to the deposit question means very little; plenty of struggling shops have a smooth script. What you're watching is the manner of the answer.
When you ask whether you can inspect the car on reasonable notice, does the owner say yes without flinching — or does the answer come wrapped in conditions, exceptions, and a faint note of being insulted? When you ask about a written contract with itemized scope, do they reach for a sample, or do they explain why their handshake is better than paperwork? A defensive answer to a fair question is the signal. The information isn't in the words. It's in whether the shop treats your diligence as normal or as a problem.
“A defensive answer to a fair question is the signal.”
How to use this before you sign
Bring the questions on paper or your phone and work through them in person. Don't apologize for having a list — a good shop has seen serious owners do exactly this, and the bad ones reveal themselves the moment the list comes out. Note not just the answers but the reactions, because the reactions are the data. A shop that answers plainly across all eight categories has already shown you most of what a deposit was supposed to buy you: trust you can verify.
The seven questions above are the spine. The full set of 47, organized across the eight categories with a scoring method for comparing shops against each other, lives in the Shop Vetting System. Ask the spine questions at minimum. Run the full list when the project — and the car — is worth the extra hour. It almost always is.
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Sources & notes
- Framework adapted from the Shop Vetting System's '47 Questions' — 47 questions organized across 8 categories (reputation; capacity and workflow; process and documentation; parts and originality; financials and deposits; contract and change orders; workshop and safety; references and audit trail). The complete question list and the comparative scoring method are in the System.
Dorian Quispe
Restoring a '67 in Los Angeles, and writing down what it actually costs. Author of the Shop Vetting System.