Black Friday lands right at the moment UK homes need a dehumidifier most — windows streaming with condensation, laundry refusing to dry, and the faint smell of damp creeping back into spare bedrooms. It is one of the few products where the sales calendar and the actual need line up perfectly, and the discounts are real: previous years have seen savings of 15–65% across every type and price point. This guide explains what deals to expect this November, which features to prioritise, and how to avoid wasting money on the wrong machine.
When do the deals start?
Black Friday 2026 is Friday 27 November, but dehumidifier deals in the UK typically start appearing a week or two earlier. Amazon, Currys, Argos and the brand sites (Meaco, Pro Breeze, EcoAir) all tend to launch early-access pricing in mid-November, with fresh reductions through the weekend and into Cyber Monday on the 30th. If you see the machine you want at a price you are happy with before the headline date, buy it — stock on popular models can sell out before Friday itself.
What kind of discounts to expect
Dehumidifier discounts are consistently strong because retailers know it is peak season and they are competing hard. Here is a realistic breakdown by price band.
| Category | Typical RRP | Typical BF discount | What you are likely to pay |
|---|---|---|---|
| Compact / bedroom (8–10L) | £80–£130 | 15–30% | £55–£100 |
| Mid-range compressor (12–20L) | £150–£250 | 20–35% | £100–£180 |
| Premium / smart (20–30L) | £250–£400 | 25–40% | £170–£280 |
| Desiccant (7–10L) | £170–£280 | 15–25% | £130–£230 |
The deepest percentage cuts tend to appear on mid-range compressor models — the 12L to 20L machines that suit most UK homes — and on previous-generation premium units. Desiccant models are discounted less aggressively because they sell in smaller volumes, but you can still save a useful amount if you know you need one.
How to spot a genuine deal
Check the price history first
Some retailers raise the "was" price in October so the November discount looks bigger than it is. Use a free price tracker like CamelCamelCamel (Amazon) or PriceSpy to see what the unit has actually been selling for over the last three to six months. A genuine 30% saving should be 30% below the normal autumn price, not 30% below a one-week spike.
Know what you need before you shop
The single most expensive mistake people make on Black Friday is buying a machine that is wrong for their home — too small, the wrong type, or loaded with features they will never use. Work out what you need now and you can move quickly when the price drops. Our what size dehumidifier do I need guide matches extraction rate to home size, and our compressor vs desiccant comparison settles the type question in five minutes.
Ignore no-name brands with no UK support
Just as with air fryers, Black Friday floods Amazon with unfamiliar brands at tempting prices. Some are fine; many come with no UK service, no spare filters and reviews that appeared suspiciously quickly. Stick to established names — Meaco, EcoAir, Pro Breeze, Duux, De'Longhi, Philips — and you will get a reliable machine with proper after-sales support. If you are choosing between the two biggest UK specialists, our Meaco vs EcoAir comparison breaks down exactly where each brand wins.
Features worth paying for in the sale
When two models are close in price, these are the features that genuinely improve daily life with a dehumidifier.
- A laundry / drying mode. Runs the machine flat out to pull moisture from wet washing as fast as possible, rather than targeting a set humidity and easing off. If drying clothes indoors is a major reason you are buying, this is the feature that matters most. Our best dehumidifier for drying clothes guide goes into the method in detail.
- Continuous drainage. A hose outlet that lets you run the machine to a drain or sink so it never stops to be emptied. Essential if you run it overnight or while you are out.
- A built-in humidistat. Lets the unit switch off automatically once the room reaches the target humidity — saves electricity and means you do not have to babysit it.
- A generous tank. Anything over three litres is comfortable for overnight use without drainage. Below that, you risk it shutting down at 4am because the tank is full.
- Low noise for bedrooms. If the machine will sit on a landing or near a bedroom, check the dB rating. Anything in the low-to-mid 40s is liveable; above 50 is disruptive at night.
Running costs: do not forget the other half of the price
A cheap purchase price means nothing if the machine is expensive to run for six months a year. Compressor models typically draw 150–250W and cost about 4–6p an hour at current UK rates. Desiccant models draw 500–670W and cost roughly three times as much. Our dehumidifier running costs guide has the full maths, and the current unit rate under the Ofgem energy price cap is the figure to plug in.
If condensation and mould are already a problem, the dehumidifier will likely save you more than it costs by keeping heating bills down and preventing expensive damp damage. The NHS is clear that damp and mould can affect your health, so there is a wellbeing argument as well as a financial one.
Is it worth waiting for Black Friday?
If your home is already damp and the condensation is building, do not wait — the damage a couple of months of unchecked moisture does to your walls, windows and health is not worth saving £30. Buy now and enjoy a drier home immediately.
If the house is under control and you are upgrading or buying your first machine as a precaution, waiting until late November is a smart move. The discounts are genuine, the range is at its widest, and you will have the unit in place before the worst of the winter damp arrives. Set your shortlist now, bookmark this page, track prices from mid-November, and you will be ready to move the moment the deal you want appears.
Frequently asked questions
When is the best time to buy a dehumidifier in the UK?
Black Friday in late November is typically the best time for the biggest discounts, and it lines up perfectly with the start of the UK damp season. If your home is already suffering from condensation, buying sooner is better than waiting for a sale.
How much can I save on a dehumidifier on Black Friday?
Discounts typically range from 15% on compact and desiccant models to 35–40% on mid-range and premium compressor units. Previous years have seen individual savings of over £100 on high-end machines.
Should I buy a compressor or desiccant dehumidifier?
For most UK homes — heated bedrooms, living rooms and bathrooms — a compressor model is the better and cheaper-to-run choice. Only choose a desiccant if you need to dehumidify a cold, unheated space like a garage or conservatory that drops below about 10°C.
Are Black Friday dehumidifier deals genuine?
Most are, but always check the price history with a tracker like CamelCamelCamel or PriceSpy. A real deal will be below the price the product has been selling at for the preceding months, not just below a recently inflated "was" price.
What size dehumidifier should I look for on Black Friday?
A 12L to 20L compressor model suits most UK three- or four-bedroom homes. Undersizing is the most common mistake — a machine that is too small runs constantly and never quite gets the humidity under control.
