A local cool room technician for Willetton
If you need cool room repairs in Willetton, Sam Celesti is the person who answers the phone and the person who turns up. He has more than 20 years in commercial refrigeration, holds ARCtick licence AU55592, and works for shop owners, food producers and hospitality venues across the suburb. Willetton is about 11 km from the Perth CBD, sitting between Canning Vale and Leeming, and is well inside his regular area. You get a free phone assessment of the symptoms and a fixed price before anything is touched.
Southlands, the side streets and the industrial pocket
Most of Willetton's commercial refrigeration is clustered in a few places. Southlands Boulevarde, the suburb's main shopping centre, brings together a supermarket, specialty food shops, a butcher, bakery counters, cafés and takeaway outlets. Smaller neighbourhood strips spread through the residential streets add delis, pharmacies and lunch bars. Then there is the small light industrial pocket, where caterers, food wholesalers and trade businesses work out of warehouse units.
Willetton also has a strong mix of Asian grocers, dumpling and noodle makers, and specialty importers. Those businesses tend to carry a lot of frozen stock: seafood, dumplings, buns, meat cuts and frozen vegetables. The equipment that goes with them includes:
- Walk-in cool rooms for vegetables, tofu, sauces and drinks.
- Freezer rooms for bulk frozen goods and seafood.
- Chest and glass door freezers lined up along the shop floor.
- Butcher and deli cabinets with serve-over displays.
Faults Sam regularly finds in this kind of setup include freezer room evaporators packed with ice, door heaters that have failed so the seal freezes and tears, condenser fans seized from dust and grease, and controllers set colder than the system can manage in a warm shop.

When a shop full of freezers cooks itself
The local angle in Willetton is heat inside the shop. A self-contained chest freezer or glass door freezer has its own small compressor and condenser, and every one of them dumps heat straight into the room it sits in. Line up a dozen in a modest grocery tenancy and they can add as much heat as a commercial oven. The air conditioning falls behind on a summer afternoon, the shop warms up, and every unit then runs longer, which adds yet more heat.
That is bad news for the walk-in too. Where the cool room condensing unit is mounted inside, above the ceiling or in a back store, it draws in that same warm air. Its head pressure climbs, its capacity drops, and the room drifts above its set point when the shop is busiest. Plug-in freezers fail early in this environment as well, usually with tired compressors or blocked condensers.
Sam looks at the whole room rather than the one unit that alarmed. Sometimes the fix is a cleaned coil and a fan motor. Sometimes it is moving a condensing unit outdoors, adding ventilation, or spacing out the freezers so they are not breathing each other's exhaust. He explains the options and the fixed cost before you choose.
What to do before Sam gets to you
First, give the plant some air. Prop open a back door or a store room door near the condensing unit, and switch off any heater or oven you do not need near the cool room. If a plug-in freezer is clearly failing, unplug it once its stock has been moved, so it stops adding heat.
Next, consolidate. Move frozen stock from the warmest unit into freezers that are holding temperature, and keep the walk-in door shut between trips.
Finally, check your chilled lines with a probe and write down the readings and times. FSANZ guidance says potentially hazardous food belongs at 5°C or colder. Food that has spent under 2 hours between 5°C and 60°C can be chilled again, food at 2 to 4 hours should be used straight away, and anything past 4 hours is discarded.
Shop floor units are handled through our commercial fridge and freezer repair service, and a scheduled service visit keeps condenser coils clean before summer. If a room keeps losing gas, ask about leak finding and regassing. For a fuller picture of common faults, read about cool room repairs around Perth.












