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A walk-in coolroom door latches from the outside. The safety release is what lets someone open it from within. Here's how to test one, and the two failures we see most.

A door seal fails slowly, and by the time anyone notices it's usually been costing money for months. Here's what to look for, plus one test that takes ten seconds.

Getting the measurement right is most of the job. Here's how to measure a commercial fridge, coolroom or freezer door seal, and how to identify the profile before you order.

Most people who need a door seal don't know what it's called. That's normal. There is no universal naming system, brands use their own codes, and the equipment is usually older than whoever's now responsible for it. The good news is that you don't need the name. You need the shape. What a profile is Cut a seal across its width and look at the cut end. That cross-section is the profile: how the seal grips the door, where the magnet sits, how it meets the frame, and how thick t