Customer stated that lavatory faucet wasn’t draining. Gave customer price to get lavatory faucet back up and draining and customer agreed. Went ahead and took apart P-trap and ran snake to clear blockage. Reconnected drain back together and tested. Now lavatory faucet is draining as it should cleaned up work area. When testing drain before work noticed leak underneath at pop-up assembly and tightened and it fixed leak. Chen plumbing does not warranty drain cleaning.