What is your travel time to Cupertino from San Ramon?

Roughly 45 minutes down 680 and across on 237 or 85, longer in commute traffic. We batch Cupertino with Sunnyvale, San Jose, Los Altos, and Mountain View calls, so South Bay days usually have room for a priority stop.

Can you service our machine before we open at 11?

Yes, morning appointments before open are the norm for busy shops. Tell us your access situation when you book and we will be off your floor before the first customer walks in.

Do you provide repair documentation for our facilities records?

Every repair comes with a written quote beforehand and an itemized invoice after, including parts replaced and the 1-year repair warranty terms. Facilities teams get whatever paperwork format they need.

DONPER · CUPERTINO

Service · All Donper Models

Donper Frozen Beverage Machine Repair · Cupertino, CA

Donper repair for Cupertino boba shops, dessert cafes, and campus kitchens

$75 diagnostic (waived with repair)
Same or next-day best effort
CSLB #1136642

Call (925) 999-4095

Donper in Cupertino

Donper commercial service.

Cupertino may have the densest frozen dessert scene we serve. The boba and shaved-ice shops around Main Street and the Stevens Creek corridor run slush and soft serve machines at a pace most towns never see, and a Donper that is down on a Saturday costs real money.

I also see Donper units in corporate cafe spaces here, where facilities teams want documentation with the repair. That suits us. Every job gets a written quote up front, and the invoice states exactly what was replaced and why, which keeps your vendor file clean.

ADRIUM Service Solutions runs out of San Ramon. Owner Andrew Kuznetsov is EPA Section 608 Universal certified, CSLB #1136642. The $75 diagnostic is waived with repair and we schedule 7 days a week.

Common repairs we do

What we close on the truck.

Consistency drifting through the day. Shops here push volume, and when product goes in faster than the machine can pull it down, staff start blaming the machine. Sometimes they are right: a weak torque sensor or worn beater blades on a Donper soft serve unit shows exactly this pattern. I run the machine loaded, watch the torque behavior, and separate a capacity problem from a component failure.
Slush machine icing up around the auger shaft. Ice forming where the shaft exits the bowl means the rear seal is passing moisture, or the bowl temperature sensing is overshooting. Either way it chews the seal and stresses the gear motor. I replace the seal, verify sensor calibration, and check the auger shaft for scoring before buttoning it up.
Error codes and dead displays on the control board. Donper control boards fail more from environment than from age. Steam from adjacent equipment and syrup mist find their way into the panel. Before selling you a board I inspect connectors and ribbon contacts, because a corroded plug mimics a dead board and costs a tenth as much to fix.

Models we service

Donper product lines.

Slush and soft-serve machines

Pricing and warranty

What it costs. What we stand behind.

$75

Diagnostic visit. Waived when you book the repair with us.
Written

90 days on consumables, 1 year on major parts, 2 years on sealed-system rebuilds. Quoted in writing before work starts.
CSLB

#1136642. Bonded and insured. We file warranty paperwork when applicable.

Nearby cities

Donper service in neighboring cities.

FAQ

Donper in Cupertino questions, answered.

What is your travel time to Cupertino from San Ramon?

Roughly 45 minutes down 680 and across on 237 or 85, longer in commute traffic. We batch Cupertino with Sunnyvale, San Jose, Los Altos, and Mountain View calls, so South Bay days usually have room for a priority stop.
Can you service our machine before we open at 11?

Yes, morning appointments before open are the norm for busy shops. Tell us your access situation when you book and we will be off your floor before the first customer walks in.
Do you provide repair documentation for our facilities records?

Every repair comes with a written quote beforehand and an itemized invoice after, including parts replaced and the 1-year repair warranty terms. Facilities teams get whatever paperwork format they need.

Need Donper service in Cupertino?

Tell us what is broken. We will quote it.