Don't do it! They quoted me $2200 - $2800 for a compressor, plus $3434 for a condenser. I was told by another company that if you replace the condenser it will come with a new compressor and should cost about $2000. When asked what a new unit would cost was told $7000 to $10000.
Called Dekes - came out the same day and replaced the unit with a bigger one for $3100. Very nice and knowledgeable.