Walnut Creek, California · 11 years in business
Paint-safe hand washing, interior deep cleans, and ceramic coating applied on site.
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 Basalt Mobile Detailing. This business is not yet in our directory, so no real data exists for it on this page.
Sample record snapshot
Verified Sep 23, 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 Mar 3, 2027
Workers' compensation
Liberty Mutual — statutory limits, 3 employees covered
verified
Expires Mar 29, 2027
Business license
State contractor registration #750896
verified
Expires Oct 17, 2027
Stormwater / NPDES permit
State general permit for mobile washing discharge
verified
Expires Jul 17, 2027
OSHA safety program
Documented training program, 0 recordable incidents in 12 months
verified
No expiry on file
Water reclamation and discharge
Trailing 12 months, drawn from 152 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.
41 of 45 reviews come from a verified operator role. Roles on this listing: Collector, Small business owner, Vehicle owner, Dealership manager, Fleet manager, Realtor, Rideshare driver.
Rachel R.
Collector
Oct 1, 2026
Booked a gift detail for my dad and his Tesla Model Y in Walnut Creek — he was thrilled. The carpets came out two shades lighter.
Mobile Detailing · Walnut Creek, California · via Google
Alicia I.
Small business owner
Sep 24, 2026
Booked the interior and exterior package for my Volvo XC90. They pulled out stains I had written off years ago.
Mobile Detailing · Walnut Creek, California · via Yelp
Molly J.
Vehicle owner
Sep 20, 2026
I manage several vehicles and use them for all of them in Walnut Creek. Paint looked better than the day I bought it.
Mobile Detailing · Walnut Creek, California · via Google
Lorraine M.
Dealership manager
Sep 8, 2026
They detailed my Subaru Outback while I was at work in Walnut Creek. Would book again. Rescheduling once was a minor hassle.
Mobile Detailing · Walnut Creek, California · via Google
Bryce J.
Collector
Sep 2, 2026
The detailer was professional, on time, and clearly cared about the result. Paint looked better than the day I bought it.
Mobile Detailing · Walnut Creek, California · via Google
Jill K.
Fleet manager
Aug 22, 2026
Full interior shampoo on my Lexus RX and the seats look brand new. Every crevice was spotless, including the vents and cup holders.
Mobile Detailing · Walnut Creek, California · via Yelp
Trisha V.
Dealership manager
Aug 10, 2026
Great communication from booking to finish in Walnut Creek. They cleaned areas I did not even know were dirty.
Mobile Detailing · Walnut Creek, California · via Yelp
Reggie C.
Fleet manager
Aug 9, 2026
I have been using them monthly in Walnut Creek for over a year now. They cleaned areas I did not even know were dirty.
Mobile Detailing · Walnut Creek, California · via Google
Sofia Z.
Realtor
Aug 2, 2026
My Ram 1500 is my daily driver and it shows — not anymore. Tires and trim were dressed perfectly — not greasy at all.
Mobile Detailing · Walnut Creek, California · via Google
Isaiah Q.
Fleet manager
Jul 10, 2026
Had my Lexus RX detailed in my own driveway in Walnut Creek. The interior smelled brand new when they finished.
Mobile Detailing · Walnut Creek, California · via Google
Derek L.
Collector
Jul 9, 2026
I was skeptical about a mobile detail, but my Acura MDX looks incredible. Good service. I would have liked a text when they were on the way.
Mobile Detailing · Walnut Creek, California · via Google
Colin J.
Vehicle owner
Jul 3, 2026
They treated my Chevy Silverado like it was their own car. The interior smelled brand new when they finished.
Mobile Detailing · Walnut Creek, California · via Yelp
Leah H.
Vehicle owner
Jul 2, 2026
Booked online, confirmed in minutes, detailed the next morning in Walnut Creek. The carpets came out two shades lighter.
Mobile Detailing · Walnut Creek, California · via Yelp
Kurt D.
Vehicle owner
Jun 28, 2026
Mobile detailing that comes to you in Walnut Creek — exactly what I needed. They pulled out stains I had written off years ago.
Mobile Detailing · Walnut Creek, California · via Facebook
Lydia B.
Dealership manager
Jun 27, 2026
Same-day booking in Walnut Creek and they still took their time. They even cleaned the door jambs and the trunk seal.
Mobile Detailing · Walnut Creek, California · via Google
Rosa O.
Fleet manager
Jun 19, 2026
Booked a mobile detail in Walnut Creek and the van pulled up right on time. Solid detail. The trunk area could have used one more pass.
Mobile Detailing · Walnut Creek, California · via Facebook
Leah W.
Collector
Jun 16, 2026
The detailer was professional, on time, and clearly cared about the result. Excellent result. Communication before the appointment could be faster.
Mobile Detailing · Walnut Creek, California · via Facebook
Meredith E.
Small business owner
May 21, 2026
My Volvo XC90 had pet hair everywhere. You would never know now. The leather was conditioned and looks and feels great.
Mobile Detailing · Walnut Creek, California · via Yelp
Megan I.
Rideshare driver
May 18, 2026
The convenience of a mobile detail in Walnut Creek is worth every penny. Really happy with it, though the price is on the higher end for the area.
Mobile Detailing · Walnut Creek, California · via Google
Leo N.
Vehicle owner
May 8, 2026
I use them for every vehicle in the family here in Walnut Creek. It rained the next day and the water beaded right off.
Mobile Detailing · Walnut Creek, California · via Yelp
Elijah P.
Rideshare driver
May 8, 2026
The ceramic coating they applied in Walnut Creek has made washing so much easier. Zero swirl marks after the polish.
Mobile Detailing · Walnut Creek, California · via Yelp
Leah S.
Dealership manager
Apr 30, 2026
The ceramic coating they applied in Walnut Creek has made washing so much easier. Solid detail. The trunk area could have used one more pass.
Mobile Detailing · Walnut Creek, California · via Yelp
Vivian I.
Realtor
Apr 26, 2026
The convenience of a mobile detail in Walnut Creek is worth every penny. They were careful around the trim and badges.
Mobile Detailing · Walnut Creek, California · via Facebook
Wendy Z.
Realtor
Apr 20, 2026
They detailed my Nissan Rogue while I was at work in Walnut Creek. It rained the next day and the water beaded right off.
Mobile Detailing · Walnut Creek, California · via Google
Elijah E.
Rideshare driver
Apr 11, 2026
I wanted to love this. The result was okay, not great. They did not bring enough water and had to leave early.
Mobile Detailing · Walnut Creek, California · via Google
Dana O.
Collector
Apr 4, 2026
I have tried every car wash in Walnut Creek and this is the one I keep coming back to. Quality work. Just note they need access to a power outlet.
Mobile Detailing · Walnut Creek, California · via Yelp
Clay X.
Realtor
Mar 15, 2026
I was skeptical about a mobile detail, but my GMC Sierra looks incredible. They pulled out stains I had written off years ago.
Mobile Detailing · Walnut Creek, California · via Google
Ross P.
Small business owner
Feb 28, 2026
They came to my apartment complex in Walnut Creek with their own water and power. They pulled out stains I had written off years ago.
Mobile Detailing · Walnut Creek, California · via Direct
Roland M.
Small business owner
Feb 28, 2026
Mixed experience with my Toyota 4Runner in Walnut Creek. Nobody answered my messages for two days.
Mobile Detailing · Walnut Creek, California · via Google
Ruben R.
Small business owner
Feb 6, 2026
The detail itself was fine, but getting it booked was frustrating. They did not bring enough water and had to leave early.
Mobile Detailing · Walnut Creek, California · via Direct
Ursula Z.
Rideshare driver
Feb 1, 2026
My Range Rover Sport had not been properly cleaned in two years. Great job on the exterior. The interior was good, not perfect.
Mobile Detailing · Walnut Creek, California · via Google
Marina C.
Small business owner
Jan 18, 2026
The work was decent but it took much longer than quoted. Nobody answered my messages for two days.
Mobile Detailing · Walnut Creek, California · via Google
Curtis D.
Collector
Jan 12, 2026
Booked a mobile detail in Walnut Creek and the van pulled up right on time. They did not rush a single step.
Mobile Detailing · Walnut Creek, California · via Yelp
Dana Z.
Small business owner
Jan 10, 2026
Two kids, a dog, and a Tesla Model 3 — they made it look new again. The glass was crystal clear inside and out.
Mobile Detailing · Walnut Creek, California · via Direct
Erin J.
Collector
Dec 11, 2025
They detailed my Mercedes GLC at my office parking lot in Walnut Creek. It rained the next day and the water beaded right off.
Mobile Detailing · Walnut Creek, California · via Yelp
Alison F.
Dealership manager
Nov 22, 2025
Same-day booking in Walnut Creek and they still took their time. Very good work. They missed a spot on the rear bumper but fixed it when I pointed it out.
Mobile Detailing · Walnut Creek, California · via Google
Ruth H.
Collector
Nov 11, 2025
My Honda CR-V had pet hair everywhere. You would never know now. Happy with the detail. It took longer than quoted but the result was worth it.
Mobile Detailing · Walnut Creek, California · via Yelp
Cara K.
Rideshare driver
Nov 7, 2025
Had them out to my place in Walnut Creek for a ceramic coating on my Audi Q5. Only reason it is not five stars is the appointment ran about 30 minutes late.
Mobile Detailing · Walnut Creek, California · via Google
Shane W.
Small business owner
Oct 31, 2025
Paint correction on my BMW 3 Series removed swirls I thought were permanent. The whole job took about three hours and it shows.
Mobile Detailing · Walnut Creek, California · via Google
April M.
Rideshare driver
Sep 19, 2025
Had them out to my place in Walnut Creek for a ceramic coating on my Acura MDX. They were careful around the trim and badges.
Mobile Detailing · Walnut Creek, California · via Google
Marina W.
Vehicle owner
Aug 8, 2025
Mobile detailing in Walnut Creek that actually shows up when they say they will. Zero swirl marks after the polish.
Mobile Detailing · Walnut Creek, California · via Facebook
Sasha Q.
Dealership manager
Aug 2, 2025
Best mobile car wash I have found in Walnut Creek. The carpets came out two shades lighter.
Mobile Detailing · Walnut Creek, California · via Direct
Owen U.
Small business owner
Jul 28, 2025
My Acura MDX is my daily driver and it shows — not anymore. Would book again. Rescheduling once was a minor hassle.
Mobile Detailing · Walnut Creek, California · via Facebook
Maya I.
Collector
Jul 27, 2025
I wanted to give this a fair shot but the experience was poor. They left water spots all over the paint.
Mobile Detailing · Walnut Creek, California · via Google
Elijah J.
Collector
May 26, 2025
My Toyota 4Runner had not been properly cleaned in two years. The leather was conditioned and looks and feels great.
Mobile Detailing · Walnut Creek, California · via Google
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Walnut Creek, California
Paint-safe hand washing, interior deep cleans, and ceramic coating applied on site.
Walnut Creek, California
A mobile car wash and detailing crew serving Walnut Creek and the surrounding area.