I had pretty much the same experience as Pam C. posted about Sept 2015. And ironically through American Home Shield, too!
These rip-off artists gave me an estimate for over $4500 to replace an evaporative cooler and over $6500 to replace my air conditioner.
They tried to charge me over $600 to replace the Freon that someone else only charged me $225 for.
SHADY! SHADY! SHADY! These people will not only RIP YOU OFF, but they'll smile while they're doing it, too.