12 Questions to Ask a Mobile Detailer Before You Book

Quality varies a lot between mobile detailers, so a five-minute conversation before you book is well worth it. These 12 questions cover price, insurance, and what happens if something goes wrong. A good detailer will answer them easily.

1. What exactly is included at this price?

Package names don’t mean much. Ask for a written list of what gets done inside and out, then check it against what a full detail should include. “Interior detail” can mean a vacuum and a wipe, or a full shampoo.

2. What will my total be, including travel?

Mobile detailers often use a minimum service charge, a per-mile fee outside their service area, or a flat travel add-on. Ask for one number that includes all of it, plus any tax. Then compare that total against typical detailing prices.

3. What could change the price after you see the car?

Pet hair, heavy stains, and odors are common surcharges. That’s fair, since they add real labor. What’s not fair is a surprise at the end. Send photos ahead of time and ask them to confirm any extra charge before they start.

4. Are you insured for damage to my car?

This is the question that matters most if something goes wrong. General liability covers basic risks such as slip-and-fall injuries, but it’s not the same as coverage for your car.

Insureon advises detailers to add garage keepers insurance, which covers customer vehicles in their care, custody, or control. Ask for proof, and ask whether the policy applies to work done at your address and not just at a shop.

5. Do you bring your own water and power?

Some mobile detailers carry water and run generators or battery systems. Others use the customer’s outlet and water supply. Neither is automatically better, but you need to know before the appointment. If they need your spigot or outlet, make sure both work and can be reached from where the car will be parked.

6. Where does the wash water go?

Rules vary by city. In Rancho Santa Margarita, California, it’s unlawful for wash water from mobile detailers to enter storm drains, and San Diego says commercial vehicles must be washed without creating runoff.

Your city may be stricter or looser. Listen for a real answer here, such as a containment mat, a low-water method, or a clear plan for the runoff. A shrug is a bad sign. For more on the rules, see is it illegal to wash your car in your driveway, and check with your city or county if you’re unsure.

7. How do you wash the paint?

Ask about their method and what touches the car. If they use a pressure washer, they should keep a safe distance and stay away from damaged paint, seals, and electronics. Point out any chipped paint or worn trim so they can work around it. The pressure washer guide shows what careful use looks like.

8. What products will you use on my car?

Tell them about any ceramic coating, paint film, or sensitive surfaces, so they can choose compatible products. If you have kids, pets, or allergies, mention that too.

Any detailer should follow product labels, ventilate the cabin, and never mix bleach with ammonia or other cleaners. If they can’t tell you what they use on the interior, keep looking.

9. Do you clean engine bays or remove seats?

If either is on the table, ask how they do it. Engine bays should be cleaned cool, with the intake and electronics protected.

Seats can hold airbag and seatbelt sensors. Anyone removing them should disconnect the battery, wait the time your owner’s manual gives, and never probe yellow connectors. Some cars should be left to a shop. If a detailer brushes this off, say no to that part of the job.

10. Can I see before-and-after photos of cars like mine?

Recent photos of similar work tell you more than a star rating. A black SUV with pet hair is a very different job from a white sedan. Read the reviews too, and look at how the detailer responds to complaints.

11. How long will it take, and what happens if it rains?

Get a time estimate so you can plan your day. Ask whether you need to stay home or can leave the keys. Then ask about bad weather and cancellations, including any deposit, since mobile work can depend on the forecast.

12. What happens if I’m not happy with the result?

Ask whether they’ll come back to fix a missed spot, and what the process is if something gets damaged. A good answer is simple and specific.

Before the appointment, take photos of the car’s condition. Do a walk-around at the end, while the detailer is still there, so any issue can be fixed on the spot. Here’s how to prepare your car so the day runs smoothly.

If a detailer gets vague on price, insurance, or wash water, move on. You can find other mobile detailers near you in the directory.