Found main level system low on 410a, recharged and added in leak sealers. Found basement system low on 410a, recharged system. Signed customer up for 2 system maintenance plan and went ahead and did summer maintenance. Changed upstairs filter, basement filter is clean. Mechanical and electrical components in good shape. Added chlorine tablets to evap coil drain pans. Chemically washed condenser coils and added rust proof waxing. Systems operating at this time.