I did not think it was possible for my apartment to be air conditioned until Cool You proposed a solution. I have been extremely impressed not only by the system they fitted, but also by the speed and efficiency of Cool You.”
Guy H (Islington, London)

If your search for an air conditioning solution for your apartment in London has proved frustrating, we are here to ease that frustration.

Whilst you may have been told you can’t have an air conditioning unit in your apartment, we have the solution with air conditioning units without an outside condenser.


At Cool You UK, we are the experts in the supply and installation of high-quality air conditioning units in apartments throughout London.

None of our solutions requires an external condenser and all of our solutions are suitable for installation without planning permission.

Questions to ask yourself

  • Does your apartment sometimes get uncomfortably warm?
  • Would you like to sleep more comfortably at night?
  • Does your apartment get the afternoon and evening sun?
  • Do you work from home at least part of the working week?
  • Do you suffer from chest complaints or hay fever?

If the answer is YES to any of these questions, we can help.


Our full internal water cooled condensers make the perfect air con solution for apartments where an outside condenser box and external vents are not an option.

All components of our water cooled air con solutions are contained within the property that you wish to be air conditioned.

For aesthetic and practical reasons, we conceal the condensing box out of view. This is usually under the kitchen sink or within a storage cupboard.

For cooling and heat extraction, we utilise your apartment’s mains water and drainage system. The condenser is connected to a wall or is ceiling mounted, resulting in a high level of comfort, low noise and cost effective installation.


  • Everything is enclosed in your apartment
  • Fully Internal – no outside access needed
  • Units are easily concealed
  • We Offer a Range of Internal Condensers, Including an Advanced Single Box Multi-Split Condenser For Cooling up to Three Rooms
  • Different room unit options
  • i-FEEL closer-to-you temperature control as standard on all DC inverter systems

Our Most Popular Solution Using State of the Art Energy Efficient DC Inverter Technology


3.5kw (12,000 BTU/h)
DC Inverter Water Cooled (Internal Condenser)
Air Conditioning System

Supplied and installed
£4,650 + VAT per room
No hidden extra costs
(£5,580 inc. of VAT)


5.3kw (18,000 BTU/h)
DC Inverter Water Cooled (Internal Condenser)
Air Conditioning System

Supplied and installed
£5,250 + VAT per room
No hidden extra costs
(£6,300 inc. of VAT)


7kw (24,000 BTU/h)
DC InverterWater Cooled (Internal Condenser)
Air Conditioning System

Supplied and installed
£5,650 + VAT per room
No hidden extra costs
(£6,780 inc. of VAT)

We are extremely happy with the product… We are extremely happy with the product and service from initial enquiry to installation. The cool you team have been professional and helpful throughout. Particularly Alex and Nikita who installed the units. Thanks.
James Leeson
2. November, 2021.
V Efficient and reliable company V Efficient and reliable company - good communication and support Highly recommended
peter constable
20. October, 2021.
Excellent service Excellent service. The installation took the whole day, the installation was immaculate, the guys cleaned up after themselves better than any other engineers we have had come. I would recommend CoolYou.
14. October, 2021.
3 years in and still very happy. I had considered installing AC for many years before eventually going ahead. I live in an apartment block, and couldn’t get permission for an external unit. Cool You were the solution. I’ve been impressed right from the beginning. The installation was seamless, and they’ve been on hand since for questions and servicing. The overall customer experience is excellent. The system is even better. We are now about 3 years in and even on the hottest of days (with the dryer and oven on at times), the system cools the apartment brilliantly. We’d now never live in a house without AC - I can’t recommend Cool You enough, they are clearly the experts in this space.
David Field
13. October, 2021.
Speedy efficient service! Speedy, efficient service!
Central London
4. October, 2021.
This is a brilliant service This is a brilliant service, brilliantly done! The air con units are quiet, neat, and incredibly effective- and efficient- I cannot recommend ‘Cool You’ highly enough
Sally Dx
18. September, 2021.
CoolyouACs Best excellent ACs
14. September, 2021.
As it says on the tin! Fantastic! Why didn't we do this before when we first moved in, instead of buying fans that just push warm air around and suffering uncomfortable nights when you can not sleep. Now, cool everywhere in the property day or night with the added bonus of being able to close the windows and shut out local noise. Bliss! With CoolYouUK no hard sell, their easy to navigate website provides a mass of information including videos, how to, FAQs and lots lots more. OK it is not cheap, they are on par with the few other companies and well worth the investment. Installed in one day, no mess. All questions and queries answered promptly.
24. August, 2021.
Good and efficient service Very good service been few years always happy to help
george salah
2. August, 2021.
Good service. Good service.
27. July, 2021.


Call us on  0207 043 2275 or REQUEST A CALL BACK MAKE AN ENQUIRY