I just chemical cleaning for my 10 years old ac also. The technician dismantle wall unit to wash filter, coil and fan separately. Also washed the outdoor unit and top up gas. From the need to set 18c , now only need to set 24-25c and it's cooling faster.

Only cost me rm160, regretted didn't do this earlier lol

Yes, rm160 all in

Go facebook search for JC air cond Eng

The best part is, they dismantle the wall unit to do the chemical cleaning not do it on the wall.

1hp

So far, based on personal experience, yes they are reliable

Yeah, in fact I like their service so much I engaged them to purchase and install aircond for my new house 😂

For my case which is consumer type service, it will be depending on their roster/availability as it's long apart between services 😂

For business, then it may make sense to have same people do but I have no experience with this ya

Good to hear that. I've also just recently asked them to service my airconds as well. Satisfy as always, very punctual too which is important to me 👍