Industrial air conditioning in the UK is comfort or process cooling for warehouses, workshops and plant, not a larger office cassette. Loads come from people, machinery, lighting, solar gain and infiltration through doors. A competent job starts with a load model and a maintenance plan, not a brochure outdoor unit.
Industrial is not a bigger office system
Industrial cooling is not a larger office cassette. High roofs, roller-shutter doors, process heat and spot-cooling for people on the floor all change the design. A cassette grid designed for a 2.7 m office ceiling will not throw air across an 8 m warehouse. You need a load calculation, a distribution method, and a plan for what happens when doors stay open.
Typical UK industrial briefs include warehouse picking floors, light manufacturing, vehicle workshops, and plant rooms that are too hot for people or controls. Some of those need comfort cooling. Some need close-control or process cooling. Mixing them on one outdoor condensing set is how you get neither job done well. Read this with the warehouse air conditioning guide and the London commercial installation guide. People who say HVAC often mean this package: heating, ventilation and air conditioning together. If your enquiry says HVAC, say whether you need ventilation rates, extract, or only temperature control.
- Walk the floor and door-open hours before picking plant.
- Comfort cooling and process cooling are different designs.
- Three-phase supply and steelwork often dominate cost.
Kit that actually gets used
Large VRF or VRV heat-recovery, rooftop packaged units, and ducted systems with fabric or steel duct all appear on industrial sites. High-level cassettes can work in lower bays. Evaporative cooling is a different product with water and hygiene duties. Do not let a catalogue pick the format before someone has walked the floor.
Electrical supply, three-phase availability, and structural steel for outdoor plant dominate cost as much as the indoor units. 2026 illustrations for small industrial bays still start in five figures once distribution, controls and access are included. A national industrial-AC from-price that ignores cranage, steelwork and weekend working is not a quote. Controls matter: time schedules, frost protection, and zoning so empty aisles are not cooled to the same setpoint as packing.
Compliance and aftercare
F-gas records, TM44 if the cooling output is over 12 kW, and a maintenance contract that can actually attend a warehouse at 6am. Industrial sites punish skipped filters and ignored leak checks. A process area that overheats on a Friday afternoon is a production issue, not a comfort complaint.
If the building is a workplace, ventilation and overheating sit alongside cooling. Air conditioning is not a substitute for extract on welding or vehicle exhaust. Handover should include as-fitted drawings, refrigerant inventory, and spare-filter sizes. The TM44 legal requirement guide and the maintenance contract cost guide sit next to this page.
How to enquire without wasting a survey
Send floor area, eaves height, door type, process heat if known, occupancy, and whether cooling is for people, product, or both. Photos of the roof, plant deck and electrical intake save a wasted first visit.
Ask for a design note, not only a price. If two industrial quotes differ wildly, one of them has assumed closed doors and the other has assumed summer peak with loading bays open. Use the quote form. We introduce firms who do this work. We do not design industrial plant from a web form.
Frequently asked questions
Is industrial air conditioning the same as commercial?
Commercial often means offices, retail and hospitality. Industrial usually means higher roofs, process heat and door infiltration. The kit families overlap. The design does not.
Do warehouses always need air conditioning?
No. Many UK warehouses use ventilation, destratification and local comfort cooling at picking desks. Full-floor comfort cooling is a different budget. Walk the use case first.
Does TM44 apply to industrial plant?
If the air-conditioning system has an effective rated output over 12 kW, inspection duties can apply. Output, not the word industrial, is the test.
Core buying guides
Start with these high-intent guides, then dig into the rest of the library.
Related guides
Sources and further reading
How this guide was prepared
This guide was written by the Local AC Installers Editorial Team. We compare official guidance, legislation and established consumer information, separate general information from project-specific advice, and show publication dates and sources. We do not accept installer accreditation claims at face value.