The new air conditioner for our condo leaks Freon. The pipes are buried in the slab and unfortunately go thru our neighbors slab as well. The association says they will pay to cut the concrete and replace the pipes but that it will be our responsibility to pay for the repair of tile and carpet. The alternative is to go through three garages, routing the pipes overhead. If we choose this option, the entire cost is ours. They have been dodging my calls and requests for original blue prints so I can compare costs. Any suggestions?