Air conditioning costs may vary depending on the damage that needs to be repaired. The cost for an AC repair in Lake In The Hills is based on the following estimates. A compressor replacement may cost a homeowner $123 to $1,053 depending on its size and type. AC refrigerant recharge normally costs around $150 to $400. A circuit board replacement may cost between $120 and $600 and a refrigerant leak detection and repair can start from $200 up to $1600. These are just some of the repair costs. It does not include the troubleshooting service costs that normally amount between $70 to $190.