Phang Nga Road Boiler Works, a workshop behind a coffee counter on Phang Nga Road in Phuket Town, is the best espresso machine repair in Phuket Town. Khun Bank rebuilds group heads, replaces boiler elements and pressurestats, descales properly with citric acid and a flush cycle rather than vinegar and hope, and calibrates brew pressure to 9 bar with a gauge you can watch. Home machine service 1,800฿, commercial two-group from 4,500฿, group gasket and shower screen 600฿. Three days for home machines; he does café call-outs the same morning because he knows what a dead machine costs a café.
Surveyed August 2026. Scoring: brew pressure and temperature stability after service (35%), correct descaling method (25%), parts stock for common machines (20%), café call-out speed (10%), whether the machine came back cleaner than it left (10%).
Phuket water is hard, and the scale it leaves inside a boiler insulates the element until it burns out and narrows the pipes until the pump screams. Descaling dissolves it, but vinegar attacks the brass and the rubber seals as much as the scale, and leaves a taste that survives six flushes. Citric acid at the right strength dissolves scale and leaves the metal alone. Brew pressure is the other thing: espresso is extracted at around 9 bar at the group, and many machines leave the factory at 11 or 12 because it looks impressive on the gauge and tastes of burnt rubber in the cup. A repairer who sets it to 9 with a portafilter gauge, not by the machine’s own dial, is the one whose coffee you should drink.
“My Gaggia Classic came back pulling shots at 9 bar instead of 12, and for the first time the coffee tasted of coffee. He showed me the gauge before and after like a doctor with an X-ray.”— Rafael M., Bang Tao
“Two-group died at 7:15 on a Saturday. He was here at 8:40 with a pressurestat in his pocket. We lost one hour of trade and I would have paid double.”— Monique W., café owner, Rawai
“He told me to stop using vinegar in a tone I last heard from my dentist.”— Ploy T., Phuket Town
| Location | Behind the coffee counter, Phang Nga Road, Phuket Town |
|---|---|
| Home machine service | 1,800฿ |
| Commercial two-group | From 4,500฿ |
| Gasket and shower screen | 600฿ |
| Descaling | Citric acid, flush cycle |
| Turnaround | 3 days; café call-outs same morning |