I am a woodwind instruments repairer and a member of National Association of Musical Instrument Repairers (NAMIR).
Flute service - £25:
• Instrument stripped down.
• Mechanism rods/screws de-grease.
• Cleaned the pads.
• Main body, foot and headjoint cleaned including the bore..
• Mechanism oiled.
• Minor realignment of keywork due to rough handling or damage caused in transit.
• Pads shimmed where leaks have occurred due to humidity changes etc.
• Glued pads refloated.
• Cork pads refloated or adjusted to make airtight.
• Regulation adjusted by mechanism screws, paper shims or cork.
• Spring tension and venting adjusted.
• Missing or worn adjustment corks and felts renewed.
• Obvious mechanism clatter removed.
• Head & footjoint fitting checked and adjusted if necessary.
• Any double action removed.
• Headcork checked to see if it is tight and in the correct position.
• Instrument then tested.