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Piston espresso machine losing pressure mid-shot, piston sticking, or producing no pre-infusion? Piston machines create espresso pressure by hand — precision seals and smooth cylinder bores are essential. Our Luthuli Avenue workshop rebuilds piston groups to like-new condition.
Call or WhatsApp: 0723 763 173
Piston Espresso Faults We Diagnose
- Pressure drops quickly during pull — worn piston cup seal no longer holding pressure against the cylinder wall.
- Piston sticking on downstroke — corroded or scored cylinder bore, or swollen piston seal from chemical damage.
- No pre-infusion pressure — blocked pre-infusion chamber or missing check valve in the piston assembly.
- Water leaking past the piston upward — upper cylinder O-ring failure allowing back-flow into the spring chamber.
- Handle cracked at base — stress fracture from repeated pulls; sourcing or fabricating replacement handles.
- Boiler not reaching pressure — scaled heating element or failed pressurestat.
Our Piston Repair Services
We hone cylinders to remove scoring, fit new cup seals, replace O-ring kits, and test pre-infusion pressure with a calibrated gauge. Food-safe silicone grease used on all rebuilt pistons.
Brands: La Pavoni, Elektra, Olympia Express, Flair Espresso, ROK (manual piston machines).
Pricing Guide (Nairobi, 2025)
|
Repair |
Estimated Cost (KSh) |
|---|---|
|
Piston cup seal replacement |
2,000 – 4,500 |
|
Cylinder honing & polish |
3,000 – 6,000 |
|
O-ring kit replacement |
1,500 – 3,000 |
|
Pressurestat replacement |
3,000 – 6,000 |
|
Full piston group rebuild |
5,000 – 10,000 |
Contact
Call / WhatsApp: 0723 763 173 — Luthuli Avenue, Nairobi. Piston espresso machine rebuild specialists.
"Piston espresso machine repairs in Nairobi — precision rebuilds, pull-tested."
