How much does it cost to rent an AC for one summer as a private person?

A full summer on KlimaLegal's seasonal subscription costs €545: €89 a month with a 4-month minimum term plus a one-off €189 for delivery, setup and collection, no deposit. Tech subscriptions look cheaper per month but usually require a 12 to 24 month commitment for the low rate. Daily hire from equipment firms runs roughly from €100 a week.

Can I rent an air conditioner for just one week?

Yes, professional equipment hire companies rent portable ACs by the day or week, roughly from €100 a week plus transport and often a deposit. For a single hot week that works; across a whole summer it costs more than buying a unit outright. Many of these offers target businesses and quote prices net of VAT.

Do I need my landlord's permission for a rented AC?

For permission-free portable devices, meaning a monoblock, a window unit or a permanently sealed mobile split, you generally don't need your landlord's consent as long as nothing is drilled or permanently mounted to the building. A classic split system with an outdoor unit is different: that needs the landlord's permission and a certified installation firm.

What happens to the rented unit at the end of the season?

On KlimaLegal's seasonal subscription the unit is collected from mid-September, with the date agreed in August. You store nothing over winter. After two summers on the Standard plan you can keep the unit through a hire-purchase option.

Devices

Renting an AC as a private person: your options beyond weekly rates and B2B quotes

Most AC rental offers in Germany are built for businesses or lock you in for two years. Here is the decision map for a renter who just wants a cool July.

12 min read · Updated October 2026

As a private renter in Germany, you have four realistic ways to get an air conditioner: a seasonal subscription covering just the summer (at KlimaLegal, €545 all-in for the 2027 season, delivery, setup and collection included), a tech subscription like Grover (the low advertised rates usually require a 12 to 24 month commitment), daily hire from a professional equipment company (roughly €100 a week and up, built for businesses), or buying a portable unit from roughly €300. Which one fits comes down to two questions: how many summers will you actually use it, and where does it live from October to May?

Why every search result is aimed at businesses

Search for AC rental in Germany and you land in a world built for trade fairs and server rooms. Weekly rates on request, prices quoted net of VAT, delivery by freight forwarder. The other big block is rent-to-own: shops where the "rent" is really an installment purchase, stretched over years, with a total well above the retail price. Neither is designed for a renter with one hot bedroom.

There is a reason the private market is thin. A portable monoblock weighs around 30 kilos, needs carrying up to the fourth floor, collecting in autumn and storing all winter. Anyone who has hauled one up an Altbau staircase without a lift understands why most rental firms prefer customers with a loading dock. Which leaves you to line the four options up yourself.

What does a tech subscription really cost?

Tech subscription services like Grover rent out electronics by the month, including portable ACs in summer. The catch is the term: the advertised price almost always assumes the longest commitment. As a rough guide, a 12 to 24 month term lands somewhere around 25 to €50 a month, while a single month can cost two or three times that.

Do the honest maths. Twenty-four months at €30 is €720. A comparable monoblock costs roughly €400 new. You are paying rent from November through March on a machine standing in a corner. You also handle setup, window sealing and the return shipment yourself. A tech subscription makes sense mainly if you genuinely want the unit year-round, say for a home office under the roof, and go in with your eyes open about the commitment.

Convert every offer into a full-season figure: monthly price times term, plus all one-off fees, plus transport, plus the value of your own setup time. Only then can you compare a subscription, daily hire and buying. A "cheap" monthly rate with a 24-month commitment is often the most expensive line on the list once you total up two years.

Is daily hire ever worth it?

For a weekend, maybe. For a summer, no. Professional hire companies price by the day or week, roughly from €100 a week for a portable unit, often plus delivery, often plus a deposit, sometimes quoted net of VAT. Four weeks of heatwave quickly reaches 400 to €600, and a whole summer costs far more than buying the unit outright.

Daily hire earns its keep for occasions with a hard end date: a party, or one brutal week of working from home at 36 degrees. It assumes you know when the heat stops. Berlin heatwaves don't send calendar invites.

The seasonal subscription: renting for summer only

A seasonal subscription fills the gap between a year-long commitment and weekly B2B rates: you rent from June to September, then the unit disappears again. KlimaLegal, which covers Berlin and Brandenburg, charges €89 a month for the Sommer-Abo (Summer Rental) Standard with a 4-month minimum term, plus a one-off €189 for delivery, setup with a properly fitted window seal, and collection. That's €545 for the whole 2027 season, with no deposit. The unit is a quiet monoblock sized to your room, and if it breaks, a replacement arrives within 3 working days.

For bedrooms there is the Premium "Leise" version: €199 a month plus a one-off €299 for delivery and professional installation by a two-person crew, €1,095 for the season. It's a mobile split unit with the compressor hanging outside on a window bracket, so the indoor side stays quiet enough to sleep next to. Installation is always done by KlimaLegal, never by you.

No way around it: per summer, a seasonal subscription costs more than the same unit bought and spread over several years. What you are paying for is that someone else carries, seals, stores and fixes. Everything in the subscription is permission-free: nothing gets drilled, nothing is fixed to the facade, and your landlord doesn't need to be asked.

Four ways to get an AC as a private renter (all figures except KlimaLegal's are rough estimates)
Option	Cost	Commitment	Fits when …
Seasonal subscription (KlimaLegal)	€545 for June to September, everything included	4 months	you want summer cooling with zero carrying or storage
Tech subscription (e.g. Grover)	roughly 25–€50/month on long terms	usually 12–24 months for the low rate	you want the unit year-round
Daily hire (B2B firms)	roughly from €100/week plus transport, often a deposit	days to weeks	the heat has a firm end date
Buying (DIY store/online)	roughly 300–€700 one-off	none	you'll use it 3+ summers and can carry, seal and store it

When buying wins

More often than a rental company likes to admit. Buying is the better deal when a few things line up:

You expect to use the unit for at least three summers.
You have a cellar, storage room or a tolerant corner for the winter.
You can carry 25 to 35 kilos, or know someone who owes you a favour.
Fitting a window seal and emptying condensate don't put you off.

A solid monoblock costs roughly 300 to €700. Spread over three summers that's roughly 100 to €230 a year, plus electricity (with daily use, roughly 20 to €40 per summer month depending on the unit and your tariff). No subscription beats that. One rule matters: buy permission-free tech only. A classic or quick-connect split system is not a DIY project. The refrigerant falls under the EU F-Gas regulation, installation belongs to certified firms, and self-installing can trigger fines running into five figures.

KlimaLegal never sells devices itself. Buying recommendations go through partner links, and the retailer is the seller and carries the warranty. If you've bought a unit and can't face the hose, the seal and the manual, the setup service costs a one-off €149.

The two-minute decision

Bridging one hot week: daily hire, or honestly a fan plus blackout curtains.
One summer, no storage, no carrying: seasonal subscription.
Keeping the unit year-round and fine with the commitment: tech subscription, but total the full term against the purchase price first.
Three or more summers with storage sorted: buy permission-free, with the setup service as a fallback.

One number to take away: KlimaLegal is offering 30 Sommer-Abo slots for the 2027 season in Berlin and Brandenburg. The season runs 1 June to 30 September, and collection starts mid-September with the date agreed in August. After two summers on the Standard plan you can take the unit over through a hire-purchase option. Not ready to commit? The free "Updates & Preis-Alarm" newsletter tracks device prices until you are.

FAQ

How much does it cost to rent an AC for one summer as a private person?: A full summer on KlimaLegal's seasonal subscription costs €545: €89 a month with a 4-month minimum term plus a one-off €189 for delivery, setup and collection, no deposit. Tech subscriptions look cheaper per month but usually require a 12 to 24 month commitment for the low rate. Daily hire from equipment firms runs roughly from €100 a week.
Can I rent an air conditioner for just one week?: Yes, professional equipment hire companies rent portable ACs by the day or week, roughly from €100 a week plus transport and often a deposit. For a single hot week that works; across a whole summer it costs more than buying a unit outright. Many of these offers target businesses and quote prices net of VAT.
Do I need my landlord's permission for a rented AC?: For permission-free portable devices, meaning a monoblock, a window unit or a permanently sealed mobile split, you generally don't need your landlord's consent as long as nothing is drilled or permanently mounted to the building. A classic split system with an outdoor unit is different: that needs the landlord's permission and a certified installation firm.
What happens to the rented unit at the end of the season?: On KlimaLegal's seasonal subscription the unit is collected from mid-September, with the date agreed in August. You store nothing over winter. After two summers on the Standard plan you can keep the unit through a hire-purchase option.