Detroit, Michigan · 13 years in business
Mobile detailing that comes to your driveway or office lot, with interior and exterior packages.
Everything below this line — the compliance file, operational scorecard, proof-of-work records, dispute protocol, and credentialed reviews — is generated sample content that illustrates the WashAttest record format. It is not real data about Onyx Auto Spa. This business is not yet in our directory, so no real data exists for it on this page.
Sample record snapshot
Verified Aug 24, 2026
Trailing 12 months
Attached to this listing
All resolved
Each document is checked against the issuing source and re-verified at renewal. An expired or missing item stays visible on the record.
General liability insurance
Liberty Mutual — $5M umbrella aggregate
verified
Expires Dec 12, 2026
Workers' compensation
Liberty Mutual — statutory limits, 11 employees covered
verified
Expires Sep 12, 2027
Business license
State contractor registration #260717
verified
Expires Sep 18, 2027
Stormwater / NPDES permit
State general permit for mobile washing discharge
verified
Expires Mar 12, 2027
OSHA safety program
Documented training program, 1 recordable incidents in 12 months
verified
No expiry on file
Water reclamation and discharge
Trailing 12 months, drawn from 185 documented visits. These are the numbers a star rating hides.
Arrived within the agreed service window
Visits requiring a return trip
Median time to first reply
Documented nightly capacity
Contracts renewed at term
Recordable incidents per 1,000 visits
Documentation attached to this listing and reconciled against billing, so a claim about work performed can be checked rather than taken on faith.
Timestamped photo pairs captured at the start and end of each scheduled visit, retained for 24 months.
Per-visit log recording date, unit identifiers, services performed, and the crew on site.
Current certificate naming the required additional insured, re-verified at each renewal.
Unit-level report reconciling units serviced against units billed for the billing period.
A business can answer a review with evidence. The record shows the claim, the response, the evidence, and the outcome — including when the review was upheld.
No disputes have been filed against this listing.
38 of 42 reviews come from a verified operator role. Roles on this listing: Vehicle owner, Fleet manager, Realtor, Collector, Small business owner, Rideshare driver, Dealership manager.
Sabrina C.
Vehicle owner
Oct 18, 2026
The work was decent but it took much longer than quoted. They missed the door jambs and the console.
Mobile Detailing · Detroit, Michigan · via Yelp
Omar Z.
Fleet manager
Oct 16, 2026
The detail was rushed and the result showed it. I was charged the full amount for a partial job.
Mobile Detailing · Detroit, Michigan · via Google
Amber I.
Realtor
Sep 23, 2026
Had them out to my place in Detroit for a ceramic coating on my Kia Telluride. Zero swirl marks after the polish.
Mobile Detailing · Detroit, Michigan · via Direct
Miguel Y.
Realtor
Sep 8, 2026
My Chevy Tahoe is my daily driver and it shows — not anymore. Paint looked better than the day I bought it.
Mobile Detailing · Detroit, Michigan · via Facebook
Jill H.
Collector
Sep 5, 2026
Booked the interior and exterior package for my Toyota Camry. They even cleaned the door jambs and the trunk seal.
Mobile Detailing · Detroit, Michigan · via Yelp
Monica B.
Fleet manager
Sep 2, 2026
Mobile detailing that comes to you in Detroit — exactly what I needed. Zero swirl marks after the polish.
Mobile Detailing · Detroit, Michigan · via Facebook
Malik M.
Vehicle owner
Sep 1, 2026
Booked online, confirmed in minutes, detailed the next morning in Detroit. Tires and trim were dressed perfectly — not greasy at all.
Mobile Detailing · Detroit, Michigan · via Yelp
Nadia I.
Small business owner
Aug 16, 2026
Great communication from booking to finish in Detroit. It rained the next day and the water beaded right off.
Mobile Detailing · Detroit, Michigan · via Direct
Jasmine S.
Fleet manager
Jul 23, 2026
Scheduled a full detail for my Audi Q5 and it came out flawless. The paint looks great. The interior vents were slightly overlooked.
Mobile Detailing · Detroit, Michigan · via Google
Brett S.
Fleet manager
Jul 20, 2026
They came to my apartment complex in Detroit with their own water and power. The headlights look brand new after they polished them.
Mobile Detailing · Detroit, Michigan · via Yelp
Paige V.
Rideshare driver
Jul 9, 2026
The ceramic coating they applied in Detroit has made washing so much easier. They even cleaned the door jambs and the trunk seal.
Mobile Detailing · Detroit, Michigan · via Google
Wendy J.
Dealership manager
Jul 1, 2026
I manage several vehicles and use them for all of them in Detroit. The leather was conditioned and looks and feels great.
Mobile Detailing · Detroit, Michigan · via Google
Alexis C.
Fleet manager
Jun 23, 2026
They detailed my Volvo XC90 while I was at work in Detroit. Paint looked better than the day I bought it.
Mobile Detailing · Detroit, Michigan · via Google
Diego K.
Collector
Jun 12, 2026
The detailer was friendly but the finish was inconsistent. The price went up from the quote without explanation.
Mobile Detailing · Detroit, Michigan · via Google
Dawn G.
Collector
May 24, 2026
Two kids, a dog, and a Chevy Silverado — they made it look new again. Great work overall — I just wish the booking window was tighter.
Mobile Detailing · Detroit, Michigan · via Google
Hannah M.
Realtor
May 3, 2026
I was skeptical about a mobile detail, but my Chevy Silverado looks incredible. Happy with the detail. It took longer than quoted but the result was worth it.
Mobile Detailing · Detroit, Michigan · via Google
Marco E.
Fleet manager
Apr 16, 2026
I use them for every vehicle in the family here in Detroit. Zero swirl marks after the polish.
Mobile Detailing · Detroit, Michigan · via Facebook
Derek X.
Realtor
Apr 8, 2026
I have been using them monthly in Detroit for over a year now. They cleaned areas I did not even know were dirty.
Mobile Detailing · Detroit, Michigan · via Google
Rita L.
Dealership manager
Mar 18, 2026
Booked a gift detail for my dad and his Ford F-150 in Detroit — he was thrilled. Paint looked better than the day I bought it.
Mobile Detailing · Detroit, Michigan · via Google
Joy P.
Collector
Feb 27, 2026
My Volkswagen Tiguan had pet hair everywhere. You would never know now. The carpets came out two shades lighter.
Mobile Detailing · Detroit, Michigan · via Facebook
Odette P.
Vehicle owner
Feb 19, 2026
Scheduled a full detail for my Range Rover Sport and it came out flawless. The leather was conditioned and looks and feels great.
Mobile Detailing · Detroit, Michigan · via Google
Derek E.
Dealership manager
Feb 15, 2026
I manage several vehicles and use them for all of them in Detroit. Good service. I would have liked a text when they were on the way.
Mobile Detailing · Detroit, Michigan · via Yelp
Xavier K.
Small business owner
Feb 3, 2026
I wanted to love this. The result was okay, not great. The seats were cleaned but the carpets were still damp when they left.
Mobile Detailing · Detroit, Michigan · via Google
Cecilia T.
Vehicle owner
Feb 1, 2026
They detailed my Hyundai Tucson at my office parking lot in Detroit. The leather was conditioned and looks and feels great.
Mobile Detailing · Detroit, Michigan · via Yelp
Simon M.
Fleet manager
Jan 27, 2026
Same-day booking in Detroit and they still took their time. The interior smelled brand new when they finished.
Mobile Detailing · Detroit, Michigan · via Google
Joy F.
Collector
Jan 13, 2026
The convenience of a mobile detail in Detroit is worth every penny. They cleaned areas I did not even know were dirty.
Mobile Detailing · Detroit, Michigan · via Google
Vanessa Z.
Vehicle owner
Jan 11, 2026
I use them for every vehicle in the family here in Detroit. Excellent result. Communication before the appointment could be faster.
Mobile Detailing · Detroit, Michigan · via Direct
Derek Q.
Vehicle owner
Dec 28, 2025
Best mobile car wash I have found in Detroit. Quality work. Just note they need access to a power outlet.
Mobile Detailing · Detroit, Michigan · via Yelp
Reggie Z.
Vehicle owner
Dec 23, 2025
The convenience of a mobile detail in Detroit is worth every penny. Really happy with it, though the price is on the higher end for the area.
Mobile Detailing · Detroit, Michigan · via Google
Neil D.
Realtor
Dec 12, 2025
Mobile detailing in Detroit that actually shows up when they say they will. The whole job took about three hours and it shows.
Mobile Detailing · Detroit, Michigan · via Yelp
Leo H.
Fleet manager
Dec 4, 2025
Best mobile car wash I have found in Detroit. They pulled out stains I had written off years ago.
Mobile Detailing · Detroit, Michigan · via Yelp
Erin T.
Vehicle owner
Nov 7, 2025
Paint correction on my Honda CR-V removed swirls I thought were permanent. Great work overall — I just wish the booking window was tighter.
Mobile Detailing · Detroit, Michigan · via Google
Ruben P.
Rideshare driver
Oct 10, 2025
I was skeptical about a mobile detail, but my Porsche Macan looks incredible. The leather was conditioned and looks and feels great.
Mobile Detailing · Detroit, Michigan · via Google
Ruth P.
Realtor
Oct 8, 2025
Had my Volkswagen Tiguan detailed in my own driveway in Detroit. It rained the next day and the water beaded right off.
Mobile Detailing · Detroit, Michigan · via Google
Rafael A.
Vehicle owner
Sep 14, 2025
Booked a detail for my Toyota 4Runner and it was a mixed bag. I had to point out three areas that were still dirty.
Mobile Detailing · Detroit, Michigan · via Facebook
Rita Z.
Dealership manager
Sep 11, 2025
Booked a mobile detail in Detroit and the van pulled up right on time. Excellent result. Communication before the appointment could be faster.
Mobile Detailing · Detroit, Michigan · via Facebook
Tanya W.
Fleet manager
Aug 12, 2025
Paint correction on my Tesla Model 3 removed swirls I thought were permanent. They cleaned areas I did not even know were dirty.
Mobile Detailing · Detroit, Michigan · via Google
Nora P.
Fleet manager
Aug 8, 2025
Two kids, a dog, and a Toyota Tacoma — they made it look new again. The whole job took about three hours and it shows.
Mobile Detailing · Detroit, Michigan · via Google
Hugo M.
Dealership manager
Aug 4, 2025
My Toyota 4Runner had not been properly cleaned in two years. The carpets came out two shades lighter.
Mobile Detailing · Detroit, Michigan · via Google
Curtis W.
Vehicle owner
May 23, 2025
Booked a mobile detail in Detroit and the van pulled up right on time. The glass was crystal clear inside and out.
Mobile Detailing · Detroit, Michigan · via Facebook
Preston T.
Dealership manager
May 14, 2025
Mobile detailing that comes to you in Detroit — exactly what I needed. Good service. I would have liked a text when they were on the way.
Mobile Detailing · Detroit, Michigan · via Google
Jerome V.
Dealership manager
May 5, 2025
They detailed my Ford F-150 at my office parking lot in Detroit. Happy with the detail. It took longer than quoted but the result was worth it.
Mobile Detailing · Detroit, Michigan · via Google
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Detroit, Michigan
Paint-safe hand washing, interior deep cleans, and ceramic coating applied on site.
Detroit, Michigan
Mobile detailing that comes to your driveway or office lot, with interior and exterior packages.