Tested system not cooling for the upstairs level. Found leaking refrigerant and conducted an electronic leak search. Could not pinpoint where the leak is at this time. We would need to perform a nitrogen leak surge in order to pinpoint the leak and be able to quote the cost of the repair of the leak. Due to the cost of this replacement might be the best option at this time. Also looked at the basement level. Customer had high electric bills in the winter time. There is no heat pump installed on the outdoor system and air handler on the inside. This means the system is only heating off of heat strips. Based on our findings today, it might be time to think about getting a brand new system.