Pioneers of water cooled air conditioning

We are the leading specialists of traditional and water cooled air conditioning installations (including AC with no external unit), repairs and maintenance, in London and the Home Counties.

Smart AirCon Installation Without Outdoor Unit In Your Property

With over 30 years experience in the business, we take pride in the work which we do. We understand that no two properties are the same and we are committed to finding the best air conditioning solution for you.  We specialise in water cooled air con or air con without an outside condenser.

Best AC Systems in market

We have accreditations from F-Gas and more so you are in safe hands.

Water Cooled Systems

We are the pioneers of water cooled air conditioning units in the country.

Free Survey & AC Solution

Our aim is to help you find the ideal air conditioning system for your home or office.

No Outside Condenser

We install air conditioning units that do not require an outside condenser in your home or workspace.

Dedicated Helpdesk

Our help desk with our London based engineers can assist you when you need us.

Water Cooled Air Conditioning

From wall mounted air-cons to ceiling units

We can install versatile wall mounted air conditioning units suitable for many rooms to ceiling cassette units covering a relatively large room.

Air Conditioning for Apartments & Flats

Restricted in what air conditioning you can install in your flat or apartment? Get in touch and find out more about air conditioning with no external unit.

No external unit
Custom solution
Not just for houses

We can help you install an air-con no matter what type of property you live in.

We do Maintenance

If you need a servicing and maintenance plan, ACS Installations can help you.

Water cooled internal condenser

We offer the ideal solution for listed buildings, apartments, restricted properties where no external unit is required. 

Water Cooled System
No External Unit​

What our clients say?

ACS's work was efficient, clean and very tidy. I had a few complications in my flat, which Mark worked around and resolved. The team never complained about my scheduling and even worked a very long day to complete the works. My family is overjoyed at having the a/c, so I’m satisfied.
Commercial Air-con
Ducted Air Conditioning
Wall Mounted Air-Con
Flats & Apartments