Premium mobile & in-shop auto detailing in Sioux Falls, Tea & Brandon, SD.
Mobile Detailing
The full detail bay, brought straight to your driveway or office. Same showroom results — zero trip required.
View ServiceAbout Us
My name’s Masen Koster, and I grew up right here in Sioux Falls, South Dakota. What started as me obsessing over keeping my own Miata clean turned into a real passion for detailing done the right way.
In March 2025, I launched Koster Mobile Detail, and by April I went all in, running it full-time. My goal has stayed the same from day one: make every vehicle I touch feel new again, at a price that makes sense.
I focus on quality, consistency, and taking the time to do things properly — whether it’s a full interior detail, paint correction, or ceramic coating. I offer both mobile and in-shop services, bringing a professional detailing experience straight to you.
Passion. Quality. Convenience.
Book NowAreas of Service
Mobile & in-shop detailing throughout Sioux Falls and the surrounding communities. Not sure if you're in range? Give us a call or text.
Call 605-808-1004Testimonials
I brought my car in for a detail and the results were incredible. The interior was quite dirty, and mason managed to get it looking nearly brand new again. Exceptional attention to detail and professional service. Highly recommended if you're looking to get your vehicle back in showroom condition.
Thanks for the review Lanny! It was a pleasure bringing your vehicle back to factory conditions.
They were amazing all around! They got everything done in a short time and did a great job!!! I will definitely be coming back and recommending to everyone!
Thanks Izabel! It was a pleasure bringing your vehicle back to factory like conditions, I'll see you next time!
Came out and has done a few cars for us. Highly recommend.
I really appreciate the review Kent! I look forward to getting some of your vehicles cleaned up again!
Have a question? Send us a message.
