Why is aircon sold out everywhere in the UK?

Every heatwave it is the same story: every retailer shows sold out, delivery dates slip, and resale prices climb. Here is what is actually happening behind those product pages - and how people still manage to buy a unit this week.

The short answer

UK retailers size their air-conditioning stock for an average British summer, not the one we are having. Portable air conditioners are a gamble line for a UK buyer: in a cool, wet July they sit in warehouses tying up cash and space, and get discounted in September. So most chains order a cautious amount, months in advance. When a proper hot spell arrives, demand multiplies almost overnight, and stock that was meant to last the whole season can clear nationally in a matter of days. The result is the wall of "sold out" and "email me when available" buttons you are looking at now.

Why retailers cannot just order more

Most portable units are manufactured overseas and shipped by sea, so the pipeline is long. A reorder placed when a June heatwave hits may not reach UK warehouses until the weather has broken - at which point the retailer owns pallets of unsold stock. Add limited warehouse space, competition for the same factories from every other European retailer having the same heatwave, and the memory of past summers where extra stock never sold, and the cautious ordering makes commercial sense. It is not a conspiracy and it is not incompetence; it is a rational response to unpredictable British weather. It just leaves buyers stranded in the hot years.

Restocks do happen - in small batches that vanish fast

Sold out rarely means sold out for the season. Stock trickles back in as delayed containers land, warehouse transfers arrive, cancelled orders and returns are re-listed, and retailers reallocate units between channels. These restocks are small, unannounced, and gone quickly: our tracker regularly sees a product appear and disappear within the hour, and in one case we watched a DeLonghi restock sell out in about half an hour from first appearance. That is why refreshing yesterday's product page feels so futile - the stock often comes back on a different product, or at a retailer you were not watching.

What actually works when everything shows sold out

1. Check live stock instead of refreshing sold-out pages

The odds of the one page you are refreshing being the next to restock are poor. A live aircon stock tracker flips the problem: we check 17 UK retailers every 2 to 5 minutes and list every portable air conditioner that is actually in stock right now, so you shop from what exists rather than mourning what does not.

2. Try click and collect, not just delivery

Home delivery stock and store stock are usually separate pools. National delivery can show nothing while a branch twenty minutes away has units on the shelf. Argos and Screwfix both sell aircon click and collect, and AirconWatch maps their store-level availability across the UK - Screwfix is swept roughly every 30 minutes and Argos roughly every 90.

3. Look past the big-name retailers

Currys and Argos clear first because that is where everyone looks. Manufacturer stores such as DeLonghi direct and trade or catering suppliers such as Nisbets sell the same class of machine to a smaller audience, and their restocks last longer. Several of the 17 retailers we track are names most buyers never think to check.

4. eBay resellers - a last resort, eyes open

During a heatwave there are usually units on eBay when retailers have none. Some are honest surplus; some are bought-to-flip at a hefty markup. If you go this route: compare against the manufacturer's normal price before paying, prefer new and sealed listings, check the window kit and exhaust hose are included, and read the seller's history. We track verified eBay listings too, but they move fastest of all - and if you would rather never see them, our quieter Telegram channel carries genuine retailer restocks only.

Set an alert and stop refreshing

The buyers who win restocks are not refreshing harder; they are alerted sooner. Follow @AirconWatchUK on Telegram for free instant restock alerts with no signup, or @AirconWatchRetailers for retailer restocks only (no eBay). While you wait, it is worth knowing what you are waiting for: our size guide tells you which BTU band fits your room and our running costs guide covers what it will cost to use, so you can buy in seconds when the alert lands rather than researching while the stock sells.

Not sure you need a compressor unit at all? See portable aircon vs a fan for the honest comparison, and how to keep your house cool without aircon for what helps in the meantime.

Sold-out aircon FAQs

When will aircon be back in stock in the UK?

There is no published schedule. Retailers restock in small batches as containers, returns and warehouse transfers land, so availability changes daily and sometimes hourly, even mid heatwave. AirconWatch typically sees at least some units reappear most days during a hot spell, but they can sell through in under an hour, so a live tracker or an instant alert beats checking pages by hand.

Why do retailers not just stock more air conditioners?

Because a British summer is a gamble. Portable units are ordered from factories months in advance, and in a cool, wet summer they sit unsold, tying up cash and warehouse space. Most retailers plan for an average year, so a long or early heatwave can clear months of national stock in a few days.

Is click and collect worth trying when delivery is sold out?

Yes. Store stock and home delivery stock are usually separate pools, so Argos and Screwfix branches often hold units when delivery shows sold out. AirconWatch checks click and collect availability at stores across the UK alongside delivery stock, so you can see which branches near you have a unit on the shelf.