Packhouse Conditions Change the Job
A packhouse is not a normal store room. Doors open all day, pallet jacks move in and out, floors get washed down, and temperatures have to stay steady while product is being sorted, packed and loaded. That means the refrigeration plant, aircon units and controls all work harder than people expect.
We see this most often in grape, stone fruit, berry, vegetable and mixed produce sites where the cold chain starts before first light and carries on into the evening. If the system is slightly undercharged or the coil is holding dirt, it may still cool but not hold temperature properly during peak loading. That is when product starts sweating, ripening too fast or picking up quality issues.
- Frequent door opening and forklift traffic
- High moisture from washdowns and cleaning
- Temperature swings during loading and dispatch
- Salt air in coastal towns and corrosion on external parts
Typical Equipment We Find On Site
Every packhouse layout is a bit different, but the usual setup includes cold rooms, pre-cool areas, air curtains or strip curtains, forced-air cooling spaces, office or sorter aircon, and a mix of thermostats, probes and logging points. On farms and in smaller depots, the same plant often has to serve both the packing floor and the dispatch area, so one weak part can slow the whole site.
We also work on condenser units in dusty yards, evaporators inside washdown areas, and drainage that blocks when leaves, labels and fruit matter build up. If the defrost cycle is not right, ice can form on coils and the room may look fine for a while then start drifting out of range. That sort of fault is easy to miss until stock is already affected.
- Cold rooms and chillers for packed produce
- Pre-cool and holding rooms
- Office and control room aircon
- Temperature probes, alarms and logging checks
- Drain lines, trap points and coil cleaning
Layout And Planning That Saves Headaches
A good packhouse plan keeps warm air away from the cold side and gives technicians proper access to plant for servicing. We often recommend checking door seals, curtain lengths, louvre positions and where the air flow is landing inside the room. If an evaporator is blowing straight at an open doorway, the system works harder than it should and the temperature swings more than expected.
On coastal sites, external units need protection from salt and wind. In inland areas like Paarl and Stellenbosch, dust from harvest traffic can block coils faster than people think. If the system is only planned for summer, it may struggle during the first cold snap or after a shutdown period. Proper start-up before the season and preservation after the season makes a real difference, and saves a lot of call-outs.
- Keep condenser units in easy reach for cleaning and inspection
- Separate washdown zones from electrical and control gear
- Allow space for safe access around compressors and valves
- Check that drainage falls away from traffic routes
Common Mistakes We See In Packhouses
One common mistake is waiting for a breakdown before booking maintenance. Another is cleaning only the visible dirt and leaving the coil and drain line out of the job. We also find sites where the temperature log is being written by hand but no one is checking the trend over a full shift, so the room appears fine until a load comes in after lunch and the readings start drifting.
Sometimes the problem is small and technical, like a loose probe, a door closer that is not pulling shut, or a fan motor starting to draw too much current. Other times the system is undersized for the number of door cycles and there is not enough recovery time between loads. In both cases, you get product stress and higher running costs.
- Dirty coils and blocked drain lines
- Worn door seals and faulty closers
- Poor logging, or logs that are not reviewed
- Seasonal start-up skipped after shutdown
What Our Service Covers On Site
For packhouses, we can handle planned maintenance contracts, emergency call-outs, cold-room servicing, aircon servicing, leak detection, coil cleaning, drain clearing, seasonal start-up and shutdown preservation. We also check temperature logging and basic operating patterns so you can see where the trouble starts instead of only seeing the final fault.
Morne Jacobus van Wyk leads the business from Montague Gardens with a team that includes refrigeration, cold-room and aircon support. That matters when a site needs more than one trade skill on the same day. For example, a failed room may need leak tracing, gas work, drain clearing and a controls check before the room can be handed back into service.
- Emergency repairs for breakdowns and temperature rise
- Planned visits before peak harvest periods
- Cleaning, pressure checks and fault tracing
- Support for Cape Town, Paarl, Stellenbosch, Malmesbury and Vredenburg
Budget Ranges For Packhouse Work
Packhouse budgets depend on the number of rooms, the age of the plant, whether the site is coastal, and how much after-hours cover is needed. A single call-out in the Western Cape can start from about R1 250 to R2 500 for labour and travel, with parts and gas billed separately where needed. If the fault needs leak detection, control work or major component replacement, the cost can rise quickly.
For planned maintenance, many small to mid-sized packhouses budget from about R3 500 to R12 000 per visit, depending on the number of units and how much cleaning is involved. Annual or seasonal contracts for sites with several cold rooms usually sit higher, often from R28 000 to R90 000 plus consumables and any repair work. It is better to set aside a proper maintenance budget than chase breakdowns after a warm spell or long load-shedding period.
If you run a busy site, the bigger cost is often not the repair itself, but the stock risk, overtime and delays. That is why we push for regular checks before harvest peaks and again before shutdown, not after the room has already slipped out of range.
