DO NOT USE this incompetent company.
The Installation of my a/ c units & the customer service after the install is not at the quality you would expect , for example the installer was NOT qualified to do part of the electrical work, when he BLEW my main fuse to the house and tried to fix it incorrectly while installing 2 new a/c units together with bad pipework and wall penetrations.
(always ask for a "certificate of compliance" where electrical work has been undertaken by this company).
if you have got an a\c unit from this company installed, i advise you to call your electricity supplier to send an inspector out to check their incompetent work

Approximate cost: $4800