Commercial Refrigeration

Design and installation of commercial refrigeration systems are as much art as science, requiring creative solutions to refrigeration challenges. 

Many businesses need flexible approaches for different purposes depending on the season.

Our expert team of installation engineers can install a powerful refrigeration system that will meet your needs exactly.

We have provided refrigeration services in the manufacturing, retail, care homes, medical industry, stadia industry, hospitality industry (most notably Wetherspoons)

We design custom refrigeration solutions with you in mind.

  • We start with a consultation to explore your circumstances.
  • We end with installing a fully realised refrigeration system,
  • Complete with cost-effective design and efficient refrigeration solutions.

Did you know a typical cellar cooler costs around £3000 to run in electricity per year?

Cellar Breeze

By utilising air conditioning principles, the CellarBreeze assists your current Cellar Cooling System in maintaining the correct cellar temperature, often without the need for the refrigeration system to be in continuous operation.

It is fully automatic and sized specifically for your cellar,

running at ~ 10% of the cellar cooling cost.


EndoCube is designed to mimic product temperature as this changes much less easily than air temperatures. This means longer run times, but also longer off times and fewer starts, reducing wear and tear on the system components.
The EndoCube has been widely tested in-house and by independent organisations and has been proven to reduce energy consumption by up to 33 per cent.


Switch Box is designed to switch cooling systems off between preset times. At night when the ambient temperatures are cooler, heat loads are lower, and people aren't going in and out of the cellar.

This has the added benefit of reducing noise pollution for your neighbours, extends the life of the compressor, and saves you significant money on energy bills.

LED Lighting

LED lighting is our standard for installation in our Cellars, Cold Rooms, and Freezer Rooms. They are activated by PIR sensors meaning that you're never left fumbling for the light switch with a heavy crate of beer in your arms, and the light is never accidentally left on, wasting energy. LEDs also perform especially well under cold conditions compared to traditional lighting, meaning they stay brighter, longer, and cheaper.


Air Conditioning

It’s a common misconception that Air Conditioning (AC) systems only
cool the air.

STSUK News Blog

News & Updates

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Case Studies

Hospital Cellar Cooling

St James University Hospital

We were called to a Cancer research analysis facility in Leeds to investigate and remedy an issue with one of their large cold rooms. This is a vital piece of equipment. To ensure site had as little down time as possible our engineer attended the same morning

Dirty Cellar Cooling Condenser

Old No.7 Cooler Installation

Old No.7 Bar and Grill were referred to us to help them with their cellar cooling needs. Preparing for the day they can open their doors and serve that first cold beer.
Once we attended site to get an appreciation of the client’s requirements and expectations,

Broken Condenser

Condenser feet replacement

In attendance to carry out an FGas Check on the Glycol Systems at Hoylake Lights Wetherspoons we noticed that one of the condensers was playing a balancing act, sat on bricks precariously over a puddle thanks to the lovely British weather!


Most frequent questions and answers

Not really, no. Refrigeration gas is pretty much odourless, but it is possible to detect a faint smell if you have a very sensitive nose. If you can smell it, then it’s a slightly sweet chemical odour in or around your fridge. In the unlikely event you smell that, there’s a slight possibility that your refrigerator is leaking its refrigerant.

Sadly, no. Lots of people think Refrigeration kills bacteria but it actually just slows their growth, prolonging the life of your produce. You should frequently and regularly wash your refrigerator so that the bacteria can’t build up over time. Commercial premises typically have a cleaning schedule that they follow religiously in accordance with HSE stipulations.

The compressor runs for between 80% and 90% of the time in order for refrigerators and freezers to maintain the proper temperature. This is normal healthy functioning – refrigerators and freezers have compressors that are designed to run 80% to 90% of the time.

A quick check of the equipment is your first port of call. Diagnose the simple stuff first. It might sound obvious, but make sure that the fridge is plugged in and that the RCD (trip switch) hasn’t switched off the power. If the fridge is switched on and getting power but still not cooling properly, vacuum the coils under or behind the fridge. Clogged coils can cause inadequate cooling. Check to make sure nothing is stuck in the condenser fan and that it spins freely (models with coils on the back won’t have a fan). If none of that works then it maybe time to call out STS-UK to look at the unit, to see if repair is economically possible.

Refrigerators work by causing the refrigerant circulating inside them to change from a liquid into a gas. This process, called evaporation, cools the surrounding area and produces the desired effect. … When you release the contents into the lower pressure open space, it turns from a liquid to a gas.

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