In short: The 9bar Studio general overhaul is the maintenance package plus the large descaling in one job: complete disassembly of the machine, all parts descaled in acid and an ultrasonic bath, maintenance as in the maintenance package (brew group, brew head gasket and shower screen, valves, brew pressure and temperature setting, electrical check), reassembly with a pressure test and a written report. Prices including VAT: €399 for single boilers (199 + 200) and €479 for heat exchangers (229 + 250), each the sum of both fixed prices; dual boilers have a package price of €1,188.81 incl. VAT (€999 net). Further work such as solenoid valve, pump or heating element only by quote. Commercial machines with two or more groups on request, currently no Sage (Breville) machines.
Reviewed by Nicola Maisto, owner of the 9bar Studio workshop in Oranienburg.
General overhaul = maintenance package + large descaling
The general overhaul combines two fixed-price services in one job: the maintenance package and the large descaling. For the large descaling the machine is fully taken apart — in the same pass it is descaled, serviced, reassembled and tested.
| Machine type | Maintenance package | + large descaling | General overhaul (incl. VAT) |
|---|---|---|---|
| Single boiler | €199 | + €200 | €399 |
| Heat exchanger | €229 | + €250 | €479 |
| Dual boiler | — | — | €1,188.81 package price (€999 net) |
For single boilers and heat exchangers the price is the sum of both fixed prices; there, as an option with the maintenance package, the large descaling costs the same as when booked on its own. For dual boilers, the maintenance package and large descaling together have a package price of €1,188.81 incl. VAT (€999 net).
What the general overhaul includes
- Complete disassembly of the machine.
- Large descaling: all parts — boiler, lines and components — descaled in acid and an ultrasonic bath, including places a descaler can't reach while the machine is assembled.
- Maintenance as in the maintenance package:
- Brew group service
- Brew head gasket and shower screen
- Cleaning of hoses and tank
- Valve service (hot water and steam wand)
- Brew pressure and temperature setting
- All-round check and electrical test
- Reassembly of the machine.
- Pressure test after reassembly and a written report.
Heat exchanger additionally, as in the maintenance package: anti-vacuum valve replaced, probes cleaned, E61 mechanism overhauled, photo documentation. Dual boiler additionally: dual-boiler-specific adjustment and calibration.
Which machines?
The fixed prices apply to home machines with exactly one brew group — single boiler (e.g. Rancilio Silvia, Gaggia), heat exchanger (e.g. ECM, Rocket, Lelit, Profitec) and dual boiler (e.g. La Marzocco, Rocket R58). Commercial machines with two or more groups on request.
It makes most sense when chemical descaling alone is no longer enough and maintenance is due anyway: visible scale crust in the sight glass, machines that haven't been descaled or serviced for a long time (often vintage machines), or scale coming loose in layers and lodging in lines or valves. We recommend after inspection; you decide. We don't descale machines with visible pitting in the boiler. Not sure which descaling fits? See the decision guide.
Only by quote
Parts that need replacing during reassembly have no fixed price — only after a quote and your approval: solenoid valve, pump (vibration or rotary pump), brew head gasket/shower screen and pressure adjustment (both included in the maintenance package), heating element, thermostat, pressure switch (pressostat), pressure gauge. Every repair starts with a quote — we only start work once you approve.
Don't know what's wrong? Drop the machine off for diagnosis: €49, credited when you place the order.
How it works
- Book online — the button below preselects the maintenance package and the large descaling (the booking portal is in German — you're welcome to call or email us in English).
- Drop the machine off at the workshop, Am Dorfanger 6, 16515 Oranienburg (by appointment) — or use our pickup and return service, €50 per trip, throughout Berlin and Brandenburg.
- Inspection; anything beyond maintenance and descaling comes as a quote first.
- General overhaul — disassembly, descaling, maintenance, reassembly, pressure test.
- Return with a written report.
We currently do not accept Sage machines (also sold as Breville), and no bean-to-cup machines.
More on this: Full maintenance — what the package includes · Large descaling · Maintenance · Pricing