I'm looking for a recommendation for a local shop that sells, installs and services residential air con units. I'm considering buying a unit for the downstairs of my rented townhouse, and am definitely looking for someone to service the existing one in the upstairs bedroom.

I'm aware that PowerBuy, Big Kiang, Tesco, etc sell them, but would like to find a reliable shop that specializes in air con units. If not, my next choice would probably be Big Kiang -- anybody with experience buying an air con from them?

Several years ago when I was renting, but I purchased two units from Big Kiang (who gave me a discount off the listed price) and they installed them the same day. They did a good job and had the best price I could find at the time. Mind you this was before Market Village, or any other mall was in town so my choices were limited.