Polar were fantastic. I had got a quote for a clean of my 2 split systems elsewhere and that guy said in the email he didn't clean LG's over 5 years old as he reckons they are prone to breaking when cleaned, and also that with any machine older than 5 years they were more likely to break and he didn't take responsibility for that. As both my systems were older than 5 years that gave me no confidence in his ability to clean them and I thought this must be typical. So I rang Polar with low expectations and they said they'd come and have a look. Not only did they clean them thoroughly they took care and both systems are working and well. The Polar technician was sceptical of the other quote and said you just have to take a bit of care with older machines and that mine were in good condition (and that they clean a lot of older machines and air conditioners should last 10 to 15 years). I was very pleased with the results. And no more mould! To top it all off they were cheaper as well. Highly recommended. They have a new repeat customer here.