Our Services

Woodwind

Person working on a flute at a workshop workbench with tools and equipment.

COA

A COA on an instrument stands for "Clean, Oil, and Adjust." It's a standard maintenance service for woodwind and brass instruments that includes:

  • Cleaning the instrument internally and externally

  • Oiling key mechanisms or valves to ensure smooth action

  • Adjusting screws, springs, pads, and alignment for optimal playability

  • Precision leak testing (Mag Machine) and play-testing to ensure excellent response and intonation

A woman repairing the flute. A musical instrument. At a workbench with various tools and cleaning supplies in the background.

General Adjustments

A general adjustment is a routine service that ensures your instrument plays smoothly and responds the way it should. It includes:

  • Aligning and regulating keys for proper timing and feel

  • Adjusting spring tension for balanced key action

  • Checking and sealing pads to eliminate air leaks

  • Oiling and lubricating key mechanisms

  • Tightening or replacing loose screws and corks

  • Play-testing to fine-tune response and intonation, and also leak testing (mag machine)

A woman with braided hair working on a silver flute in a workshop surrounded by tools, with drawers and shelves in the background.

Overhaul

An overhaul is a full-service rebuild that includes:

  • Complete disassembly of the instrument

  • Thorough cleaning of all parts (ultrasonic, hand-cleaning, or chemical as appropriate)

  • Replacing all pads, corks, and felts

  • Resurfacing or replacing tone holes if needed

  • Polishing or removing tarnish from keys and body

  • Straightening bent keys or rods

  • Full regulation and key fitting for optimal action

  • Re-oiling and lubrication of the mechanism

  • Precision leak testing (Mag Machine) and play-testing to ensure excellent response and intonation

Brass

Adriana Sosa holding a silver trumpet in a workshop or garage setting with tools and equipment in the background.

Cleaning

  • Chemical bath or ultrasonic cleaning to remove buildup, corrosion, and mineral deposits

  • Complete slide and valve cleaning

  • Detailed re-lubrication of all internal components

  • Careful reassembly to restore smooth action and protect internal parts

  • Final play-test to ensure the instrument is performing in optimal condition

Person cleaning a trumpet at a workbench in a workshop with tools and organized supplies.

General Maintenance

  • Precise valve and slide alignment for smooth movement and responsive action

  • Lubrication of all moving parts for optimal performance

  • Replacement of worn felts, corks, or springs to restore quiet and accurate action

  • Full leak test to ensure airtight seals

  • Playability check to confirm proper instrument response

  • Freeing of stuck slides or valves, if needed

  • Minor dent removal or patch repair to maintain both function and appearance

  • Final play-test to ensure the instrument performs in optimal condition

A woman sitting on a stool in a workshop holding and examining a brass instrument, smiling. The workshop has various tools and equipment in the background.

Overhaul

  • Full disassembly of the instrument

  • Deep internal cleaning using a chemical or ultrasonic bath to remove all residue

  • Dent removal to restore proper form and appearance

  • Precise valve and slide alignment for smooth, responsive action

  • Replacement of all felts, corks, and springs for reliable mechanical function

  • Lubrication and polishing of all components

  • Final play-test to ensure professional-level performance and responsiveness

Trumpet
Bassoon
French Horn
Flute
Oboe
Tuba
Clarinet
Trombone