Our air conditioning without outdoor units are fully internal without the need for an external unit fitted to the exterior of your property.
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Do you live in an apartment, listed building or property that is restricted from making external modifications? Have you been told you can’t have air conditioning with an external condenser?
Our solution to this problem is wall mounted air conditioning without an outdoor unit, otherwise known as water cooled air conditioning.
Most modern residential properties now come insulated to a high standard, which is perfect for the winter months, but can cause the building to become hot and stuffy when outdoor temperatures rise.
You may have found that conventional air conditioning isn’t a viable option for your property, due to the need for an external condenser.
We are here to help. Read on to learn more about how a wall mounted air conditioner without an outdoor unit works.

Watch now for more details on our A/C without an external unit

The main difference between conventional air conditioning with an external unit, and air conditioning without an outdoor unit is the way the system's refrigerant is cooled:
An air conditioning system principally works with a refrigerant that runs around a thin pipework system. When the air conditioning is in cooling mode this refrigerant absorbs the heat from the room or rooms, and transfers it along the system via a compressor to a condensing unit.
In air conditioning with an external unit, also known as a conventional air conditioning system, this condensing unit is a box housed outside that discharges the heat into the atmosphere via a fan and draws in cold outside air that passes over a hot coil to cool the refrigerant.
Air conditioning without an outdoor unit is called water cooled air conditioning, because it uses mains water to cool down the internal refrigerant, rather than outside air. This allows the system to be fully internal, as all of its components are located within the property.
This makes it a perfect option for most flats, apartments, listed buildings or buildings within conservation areas as for various reasons outdoor condensing units can’t be installed.
We provide Wi-Fi-enabled water cooled air conditioning solutions that you can control using a tablet or mobile device. Whether you’re at home or out and about, as long as you’re connected to the internet, you can control your water cooled air conditioning system.
With the Urban Signature range, our internal water cooled condenser is paired with Toshiba's Seiya wall-mounted units. These compact, understated units deliver A++ energy efficiency and come with Wi-Fi connectivity as standard, so you can control your system from anywhere via your smartphone or tablet.
A compact flat-panel design in white.
An Urban Cooling fully internal Water Cooled condenser unit.

Our Urban Ducted range connects our water cooled condensers to a discreet ducted unit, concealed within your ceiling void and hidden behind a modern, minimalist grille. With no visible wall unit, it's the ideal choice for maintaining a completely seamless look throughout your property, without compromising on cooling performance.
Maintain a seamless look with a ducted unit hidden behind a modern and minimalist grill.
An Urban Cooling fully internal Water Cooled condenser unit.

Our Urban Ducted units are available at an additional cost of £1,200 per room. Please note that a ceiling void or bulkhead of at least 250mm is required in order to accommodate a ducted unit.
Our fully internal water cooled systems have no external elements and therefore remove the need for planning permission. They are the only integrated solution for properties where external modifications are not permitted.
Our condensers and wall units blend seamlessly into your property's design, ensuring your property’s aesthetics remain untouched.
One of our water cooled condensers has the capacity to cool up to 8 rooms at once!
With the convenience of controlling your air conditioning from your phone, never worry about returning to an uncomfortably hot home.
Investing in our systems improves your property's rentability and value, potentially leading to a positive return on investment.
There is minimal disruption during installation by our F-gas registered engineers.
Our quiet air conditioning systems not only cool you effectively, but also enable you to focus, relax, and sleep undisturbed.
With an A+ rating for electrical energy efficiency, you can stay cool without worrying about skyrocketing electricity bills.
All of our systems come with a full 12-month parts and labour warranty. This can be extended to up to 5 years, with the first three years covering both parts and labour, and the final two years covering parts only. Please note to maintain the extended warranty, annual servicing by our maintenance team is required.
Our systems don’t compromise on performance, as they offer equivalent cooling efficiency to conventional air conditioning units.
Watch the video to see Firdaus’s full review.
Air conditioning goes beyond just keeping you refreshed. It helps you to:
Are you exhausted because you struggle to sleep when it's hot? Do you want to wake up feeling refreshed, energised, and ready to tackle the day ahead thanks to a cool night's sleep?
Getting a good night's sleep is essential to your overall health, well-being and mood. That's why having an air conditioning system that not only cools your bedroom, but also improves the air quality by reducing allergens and pollutants, can lead to a better overall quality of life.

Are you working from home in a hot and stuffy property? Do you feel uncomfortable and less focused and productive?
Having an air conditioning system provides a cool and comfortable environment for you to work in, boosting your concentration and productivity levels. No more feeling sluggish and irritable during long work hours!

A home is for enjoying and living in, so don’t let hot summer days stop you from doing that.
By installing air conditioning without an outdoor unit you can enjoy more time at home with family and friends in a cool and comfortable environment.

Learn more about our Water Cooled system from our founders, Tony and Mark

Yes, our internal water-cooled solution is the best alternative when you are not allowed (or don’t have room) to install a condenser on the outside of the property.
Conventional air conditioning systems have both an internal room unit and an external condenser unit, which are connected by refrigerant copper pipes. The external units, often noisy and unsightly boxes located on the outside buildings, are the condensers. These condensers use external air and a fan to reject the heat from the condenser coil. An internal water cooled system works in a similar way, but with one key difference. Instead of using air to cool the refrigerant, the system uses water instead. The internal room units are still connected via refrigerant pipes, but the condenser unit uses water to cool the refrigerant in the system.
Yes, you can install a water cooled air conditioning system in your apartment even if you have no outdoor space. Our systems are ideal for apartments, listed buildings, or any properties where external modifications are not possible or permitted. Find out more about installing water cooled air conditioning systems in apartments here.
Our fully internal water cooled air conditioning systems don't require planning permission, because there's no external unit and nothing about the outside of your property changes.
That makes Water Cooled air conditioning the perfect solution for apartments, listed buildings and properties in conservation areas, as these properties often require a planning application to have an air conditioning system with an external condenser.
If your building is listed or sits in a conservation area, we'd still suggest a quick word with the local planning office to be certain. But as nothing is altered externally, the usual obstacles don't apply.
Yes! In fact, water cooled systems can be even more effective than conventional air conditioning. This is because, even when outside temperatures soar above 30 degrees, the water entering your property still stays typically at a much cooler temperature, around 20 degrees Celsius or below. This allows our water-cooled systems to remove heat more efficiently, providing you with a cooler and more comfortable environment.
If you're wondering how noisy air conditioning units are, you'll be pleased to know that our internal wall-mounted systems are among the quietest on the market, operating from just 19 dB(A).
Urban Designer: 19 - 22 Db(A)
Urban Signature: 19 - 37 Db(A)
Our water-cooled condensers are also very quiet, similar to the sound of a quiet washing machine. We can also line the inside of the utility-cupboard door with egg-shell acoustic foam to absorb the sound further.
Do you still have a question about our air conditioning systems or our services in general? Please call us on 020 8080 9708.
We have over 40 years of combined experience installing all types of air conditioning solutions into residential, commercial, retail and leisure premises.
We specialise in providing air conditioning to buildings which otherwise cannot have it. With our solutions, properties such as apartments and listed buildings can have the same standard of air conditioning as conventional systems provide, without the need for an external unit.
Don't settle for a white plastic box on your wall. Our Urban Designer range features changeable textile covers in either standard or bespoke colours to match your room's decor. When it's time to redecorate, you're not stuck with the colour you chose three years ago. Prefer not to see a unit at all? Our ducted systems sit concealed behind a discreet grille.
Air conditioning is a big decision to make online. At our demonstration centre, you can see every option running before you commit to anything. All our wall units, concealed ducted systems, and designer covers are on display. Listen to how quiet our systems actually are, and compare them side by side.
Our range of air conditioning solutions are all competitively priced within the market. You’ll be hard pushed to find another supplier who has an equivalent solution (system & wall unit) at a lower price, but if you do, just let us know and we’ll match their price! Just send us a copy of their quotation and we guarantee to match the price!
We offer a complete service, including any 'making good' afterwards. During the installation process, if any small holes are required to be cut for access, our quotes include a 'making good' element to restore your property to its original condition. Unlike other suppliers, we take responsibility for these repairs, alleviating the need for you to handle them yourself.
We're proud that all our condenser units meet not only the UK Conformity Assessment (UKCA) standards but also the quality benchmarks we set ourselves. To maintain this high standard, our in-house engineers in the UK design and assemble all our condenser units, guaranteeing the quality of every system we supply for installation. It also means that if anything ever needs attention, you're not passed back and forth between an installer and a manufacturer.
A simple one or two-unit installation in a modern flat is usually complete in a single day. We've completed over 1000 installations across the UK, all carried out by our own team of F-Gas registered engineers who work professionally and discreetly in your home. We're also approved installers for Panasonic and Toshiba, having met their technical and service quality standards.