Hi Neil,
Congratulations on your forthcoming completion.
We also used Gary at Polarair for our air con - my husband (Paul) is an air conditiioning engineer in the UK and would be happy to have a chat with you about the various different systems and options that you have for air con. We have been very impressed with Gary and believe me, his work was subject to great scrutiny from the expert!
We also have two apartments in Jardin 12 available for rent, so only a short walk from your apartment in Jardin 8. One of them is available for the dates that you need - please visit our website and adverts (links below) for photos and info relating to the apartments etc. If you are interested, please contact us (details on the website) and we can offer you a good discount as a fellow property owner and neighbour!
Good luck
Debbie