We build cold rooms, freezer rooms and process cooling systems for pharmaceutical, food, healthcare and industrial clients, and we validate them against the temperature the product actually has to hold.
In a warehouse, a refrigeration fault is an inconvenience. In a pharmacy store, a vaccine fridge room or a food production facility, the same fault is a regulatory event: product is quarantined, an excursion has to be investigated and the record has to show what the temperature was at every point, not what the setpoint said.
Green Flash builds refrigeration as a monitored and documented system rather than a box with a condensing unit on the roof. Refrigeration is a named scope on our ISO certification, so the installation, the commissioning and the temperature records are produced under an audited quality system. In a Saudi ambient, where a condenser can see over 50 degrees on a summer afternoon, that design margin is the difference between a system that holds and a system that holds until August.
Because refrigeration sits inside our wider mechanical capability, it is coordinated with the HVAC and the chilled water plant on the same drawings, and the electrical supply, the standby arrangement and the alarm routing are designed together rather than retrofitted.
Modular panel cold rooms and freezer rooms, built from insulated panel with the correct vapour barrier, floor build up and door set for the duty. Blast freezers and low temperature rooms where the process needs them, with underfloor heating to stop frost heave below the slab.
Condensing units, remote and packaged plant, multi compressor racks for larger loads, evaporators selected for the humidity the product requires, and pipework designed for correct oil return rather than only for capacity. We work with current lower GWP refrigerant blends as well as the legacy gases already installed on site.
Pharmacy and laboratory cold stores, controlled room temperature areas, mortuary refrigeration and vaccine storage, with the redundancy and alarm arrangements these rooms require. Built for pharmaceutical manufacturing and healthcare projects clients who have to evidence the chain, not just maintain it.
Continuous temperature logging with calibrated sensors, local and remote alarms with escalation out of hours, and temperature mapping of the loaded room so the records describe the warmest corner rather than the sensor nearest the evaporator.
We calculate the heat load from the product, the pull down rate, the door openings, the people and the infiltration, then select against a realistic Saudi summer design condition. Selecting on nameplate capacity at a European ambient is the most common reason a cold room cannot hold temperature in July.
Panel erection sealed and squared, pipework brazed under nitrogen, correctly sized and routed for oil return, insulated with a continuous vapour barrier. Condensate and defrost drains are trapped and heated where they pass through a cold space, because a frozen drain floods the room it was meant to protect.
Evacuation and leak testing, charging by weight, superheat and subcooling set and recorded, defrost cycle timed against the actual frost load, and a full pull down test from ambient with the data logged. Setpoints are proven under load, not at the end of an empty room.
Temperature mapping of the loaded room, calibration certificates for the monitoring sensors, and a handover pack with the commissioning data and the planned maintenance schedule. We maintain what we install, including gas leak checks, condenser cleaning and alarm testing.
Green Flash Engineering and Contracting has completed over 21 major projects across Saudi Arabia, supported by teams operating in Jeddah, Riyadh, Yanbu, Rabigh and King Abdullah Economic City. Our pharmaceutical manufacturing and industrial work puts us in buildings where temperature is a regulated parameter and the record matters as much as the reading.
Refrigeration is a named scope on our certification rather than an added service. Green Flash is certified to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 under certificates SCK/01/AWL/25/96/6215, SCK/02/AWL/25/96/6216 and SCK/03/AWL/25/96/6217, issued by SCK Certifications Pvt Ltd and valid to September 2028. The same documented system produces the commissioning data, the mapping report and the calibration records that an auditor will ask for.
Where a facility also needs medical gas pipeline systems, electrical substations or the chilled water plant that serves the rest of the building, those packages come from the same contractor and the same programme. You can talk to us about a single scope or the whole package.
Both. We design and build new cold rooms and freezer rooms from the panel up, and we take on maintenance of existing installations, including ones another contractor built. For an existing room we start with a survey and a pull down test so the baseline is measured rather than assumed.
Yes. We install the room, the redundant plant and the calibrated monitoring, carry out loaded temperature mapping and issue the commissioning and calibration documentation. Where a formal validation protocol is required by the client’s quality team we work to their protocol and provide the installation evidence it calls for.
That depends on the contract we agree, and it should be agreed before handover rather than after the first incident. We configure alarm escalation to the people who can act, and under a maintenance agreement we provide a call out response. The monitoring is independent of the plant controller, so an alarm is raised even when the controller is the thing that failed.
We design new systems around current lower GWP options appropriate to the duty, and we service the legacy refrigerants already installed across the Kingdom. If a plant is on a gas that is being phased down we will say so and set out the retrofit or replacement options rather than keep topping it up.
Send the room size and the product, or the process load. We will come back with the plant selection, the design ambient we have used and what the monitoring and validation will involve.
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