Industrial refrigeration is not a local boiler job, but it is not a purely remote one either. When a cold store alarms at night, someone has to travel. When a factory wants a survey, someone has to walk the plant. EJM Engineered Systems runs four UK offices so that work can be designed, installed and maintained without pretending the country is one depot in the Midlands.
The offices are published on the project locations and contact pages: head office at Thornley Station Industrial Estate, Shotton Colliery, Durham; Derby at Prime Enterprise Park; Ashford in Kent at Eureka Park; and Glasgow at Greenlaw Way, Newton Mearns. Work is UK-wide, including Northern Ireland. This article is about how to use that structure, not a claim about minute-by-minute response times — those depend on the job, the weather and access.
Four offices, one engineering company
EJM was founded in 1980 as an independent industrial refrigeration contractor. Commercial refrigeration, air conditioning, ventilation and service grew around that core. The point of remaining independent is unchanged: we are not tied to a single manufacturer, so equipment can be selected for the duty rather than for a brand target.
The four offices are not four separate companies. Design, installation and maintenance sit under one name, which matters when a project in Kent later needs a service visit, or a Durham-designed ammonia plant needs a compressor overhaul years after handover. Clients should not have to re-explain the plant to a new contractor every time the season changes.
If you are comparing contractors, ask who will actually attend, where they are based, and how out-of-hours calls are handled. A national logo is not the same as an engineer who can reach the site.
North East and the Durham head office
Head office remains in County Durham, at Shotton Colliery, postcode DH6 2QA. The published number is 01429 836 161, which is also the 24/7 breakdown line on this site. From there EJM covers a dense band of food and industrial work: Durham, Newcastle, Gateshead, Washington, Hartlepool, Middlesbrough, Whitby, and into North Yorkshire towns the company has listed among project locations — Malton, Boroughbridge, Wensleydale and beyond.
That geography matters in November. Coastal and inland sites do not see the same weather. A condenser at Hartlepool lives with salt and wind; a plant room in a Durham industrial estate lives with different access and frost. Local engineers who already know the roads, the docks and the factory gate processes waste less time than a crew starting from a map.
If your site is in the North East and you have not spoken to EJM recently, the Durham office is the right first call for a survey or a maintenance conversation. Use the dedicated Durham office page or the main contact form.
Midlands cover from Derby
The Derby office at Unit 4 Prime Parkway, Prime Enterprise Park, DE1 3QB, on 01332 343 970, is the Midlands base. Project locations listed by EJM include Nottingham, Stoke, Birmingham, Wolverhampton, Sheffield, Manchester and Warrington — the sort of industrial belt where distribution centres and food factories sit on the same motorway network.
Midlands sites often have mixed plant: older HFC packages beside newer low-GWP or natural-refrigerant systems, and commercial rooms on the same campus as industrial plant. An independent contractor is useful here because the answer is rarely “replace everything with one catalogue”. It is more often: keep what is healthy, plan what is not, and do the work without stopping the factory.
Details for the office are on the Derby location page.
Kent, the South East and Scotland
The southern office is at The Cobalt Building, Office 18, 1600 Eureka Park, Lower Pemberton, Ashford, Kent TN25 4BF, telephone 01622 758800. That is a practical base for Kent, the South East and sites that are awkward to serve only from the North. EJM’s published location list includes places such as Rayleigh, Sandwich, Staplehurst, Fareham, Reading and Theale — a reminder that industrial refrigeration in this country is not only a northern industry.
Scotland is covered from The Greenlaw Works, 6S Greenlaw Way, Newton Mearns, Glasgow G77 6EF, on 0141 484 5000. The company has also listed work in the Outer Hebrides among its case studies, which is a useful reminder that “UK-wide” sometimes means a boat and a containerised plant room, not only an M6 run. See the Ashford and Glasgow pages for addresses and maps.
Northern Ireland and the Irish locations listed on the site — Coleraine, Larne, Kilkeel and others — are part of the same coverage statement. If you are unsure which office should own the enquiry, send it through the main contact form and say where the plant sits. We will route it rather than ask you to guess.
What regional presence means on a breakdown
A regional office does not magic away geography. A call from Cornwall to Durham still involves travel. What it does mean is that first contact, spares conversations and follow-up can sit with people who already hold the asset history, especially where Joblogic is used to keep plant registers, certificates and job records in one place for the customer.
For planned work, regional presence makes surveys cheaper to arrange and programmes easier to phase around production. For emergency work, it means the person who answers should be able to talk refrigeration, not only log a ticket. We will not quote a guaranteed arrival time in a blog post. We will say: call 01429 836 161, describe the plant and the product at risk, and give honest access information.
If you operate more than one site, ask for a single engineering contact even if the buildings sit in different office areas. Multi-site estates go wrong when every depot has a different contractor and no one owns the refrigerant strategy.
Get in touch with the right office
New installations, upgrades, maintenance contracts and free initial site surveys can all be requested from the contact page. Pick the enquiry type that matches, name the town, and say whether the plant is industrial ammonia, commercial packaged equipment, air conditioning or a mix.
If you already know you need industrial refrigeration design rather than a service call, say so. The survey will be scoped accordingly, and the nearest office can take it from there.
To discuss a survey, a maintenance visit or a new installation, contact EJM Refrigeration on 01429 836 161 or email contact@ejmrefrigeration.co.uk.
