"Heads up this is going to be a poor review. 2 service personnel arrived at 1030 to carry out the general servicing of 5 air cond units, they brought 1 ladder, 2 small brushes and a cloth. The first unit they open, i could see that the technician was having trouble with the fan blades backbone locking mechanism, he open the backbone and shoved the brush in to clean the blower wheel, brushing it vigorously and in the process i think damaged the flexible blades, as he kept on brushing the blower wheel. After they reassembled the unit, i asked them to abort cleaning the rest and paid 30 bucks for the one unit. They took 1 hour to clean 1 unit! The filters are still dirty, traces of dust are still easily visible to the naked eye. Now I'm waiting for them to come back as the rotating blower wheel is scrapping the sides of the aircond internal body, most probably spoiled this air cond as well, might need to get it fix if they are unable to do so. Sorry Adrian, I am holding your company liable for the damages any any consequential damages that you may or may have caused. Very unfortunate experience but the amateurish nature of the service and now i have to get another aircond service to come over, not to mention waste time. Certainly wont be using this provider and would wish Kaodim at least filter their providers, maybe their competitors might be doing better at this. I'll try using SH next time. Overall 1 star for the service since i most probably can do a better service then them. Should also review their safety performance, they didn't isolate the power prior to starting work and were not using a wooden ladder whilst working on electrical equipment. I wonder why MOM does not review the safety of these workers, they should have the right tools and personnel protective equipment. "