Plug & play packages
Factory-built systems that install faster, with less on-site disruption.
Cooling that works harder for less energy.
Industrial refrigeration, heat pumps and packaged systems, designed, built and supported across the UK.
Up to 66% energy savings vs UK Best Practice
About Us
Star Refrigeration is the UK’s largest independent industrial refrigeration engineering company. Since 1970 we have designed, built and supported cooling and heating systems for food producers, cold stores, brewers, data centres and more, helping operators cut energy use without compromising uptime.
400+
engineers & office staff across the UK
11
branch locations nationwide
Zero GWP
natural ammonia refrigerant options
20+ yrs
design life on quality equipment
Why Star
Built for reliability. Tuned for efficiency.
From packaged ammonia systems to heat pumps and full lifecycle service, we engineer temperature solutions that cut operating cost and carbon.
Compact & flexible
Outdoor-ready designs that sit at the point of demand. No plant room required.
Low-charge natural refrigerants
Ammonia systems with very low charge: safer, greener, F-gas ready.
Full lifecycle support
Design, manufacture, install, maintain and optimise. One accountable partner.
Products
Systems built for real plant rooms.
Zero GWPNatural refrigerant
Azanefreezer 2.0
Low-charge ammonia package for low-temperature storage, blast freezing and food processing.
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Up to 20%More efficient vs UK MT rivals
Azanechiller 3.0
Latest-generation air-cooled ammonia chillers built for energy efficiency with no F-gas exposure.
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F-gas readyNatural option for smaller duties
Envifreeze
Industrial freezer package sized for modern businesses that need natural refrigerant performance below 300kW.
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CompactFactory-built package
Envicold
Packaged industrial refrigeration for cold storage duties where capacity sits under 300kW.
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Plug & playFast to install
Envichill
Industrial chill package for operators who want natural refrigerant performance without a full plant-room build.
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Heat & coolLarge-scale Neatpump
Air Source Neatpump
Large air-source heat pumps for district heating, campuses and industrial sites that need efficient heat recovery.
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Cut kWhData-led optimisation
Ethos
AI-enabled performance monitoring that finds efficiency issues and helps cut electricity spend across the plant.
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Made to dutySite-specific plant
Bespoke systems
Custom ammonia and CO₂ solutions when packaged ranges need to flex around complex site duties.
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Proven across the cold chain.
From food manufacturing to district heating, Star engineers temperature solutions across twelve market sectors.
What keeps industrial cooling moving forward?
From packaged systems and published know-how to the people who design and support them, Star invests in the kit, the insight and the teams behind every plant.
Learn More
News
Latest from Star.
As-new Azanechiller 2.0 available as operators review heatwave resilience
Immediate availability of low-charge ammonia chillers as sites rethink design for a changing climate.
Major energy and carbon savings at DHL Wetherspoon DC
Low-charge ammonia delivering near £200k annual savings at the Daventry distribution centre.
Bristol to host international natural refrigerants conference
Dr Andy Pearson represents the IOR as the event comes to England for the first time.
Testimonials
Trusted across the cold chain.
Working with Star Refrigeration has been a very positive experience. They’ve been proactive, knowledgeable, and always ready to support us throughout the project.
Daniel Johnson
Engineering Manager
DHL
The energy efficiency achieved at our Glasgow site through the CO₂ refrigeration system is extraordinary.
Claire Cox
Head of Property
Bidfood
Since installing the Azanechiller 2.0, we have seen a reduction of over 1 million kWh a year at our Hemel site.
Lionel Thripland
Head of Property
Gist
The insights Ethos and the Star team delivered have been invaluable. We cut energy by an average of 10% across eight sites, with ROI in under three months.
Rob Redfern
Group Energy Manager
Tesco
We have made tangible reductions in energy use throughout our chilled depots whilst continuing to run our business as usual with no disruption.
Brian Churchyard
Engineering & Energy
Asda
It’s nice to work with Star again. They understand our requirements and can inform us of the new technology available since the original install.
Ian Wilson
Project Engineer
First Milk
Both Star and City Facilities Management offered specific expertise to Asda to help it achieve its vision of vastly reducing its carbon footprint.
Andrew Dodson
Energy Bureau Manager
City FM
Get in touch
Ready to talk temperature?
Tell us about your site, duty and timeline. We’ll help you specify the right package, retrofit or service plan.