For over four decades, Osmun Music has been providing the brass & woodwind community with professional repair services. From pulling a stuck mouthpiece to complete mechanical & cosmetic overhauls of instruments, our combination of experience and expertise can benefit any brass or reed player in need of routine or emergency instrument repair. The following is a small sample of the repair services we offer.

Trumpet Services

Precision Valve Alignment (PVA): Your valve alignment is carefully measured, charted out, and adjusted to be as perfect as designed. Valve stroke (both up and down) is adjusted by machining and/or installation of our custom-made washers that are resistant to compressing (such as the standard valve felts). A record of your alignment is kept on file so that we can return the instrument to perfect alignment in the future or if a replacement set of valve washers is needed in the future.

Blueprinting: A comprehensive charting of your trumpet from mouthpiece receiver to bell flare, Blueprinting is unique to every instrument. Our trumpet specialists will check all the little things that may have been overlooked in manufacturing including valve alignment, roundness of the bell bow, sloppy solder joints, mis-aligned tubes, etc. The corrections he makes will raise your instrument to the best it can be as it was originally designed. The cost of blueprinting is determined by the amount of work needed to bring your trumpet to its optimum. Our technicians inspect each horn as they come into the shop and contacts the customer with the results of his comprehensive inspection and will work with the you to make your trumpet the best it can be.

Add-On Chemical Cleaning/Ultrasonic Cleaning: Add a Chem\Ultra Clean to a Precision Valve Alignment or Blueprinting Service at a discounted rate.

Trumpet Piston Valve Rebuild: Rebuild and refit a set of three trumpet pistons. Includes honing of pistons and casings, heavy nickel plate, replacement of corks felts, and springs (if needed). A full chemical/Ultrasonic cleaning is included with this service. Trumpet rebuilds can vary in completion time, but we can easily set up an appointment to work on the horn in a specific 1 or 2 week time frame.

FAQ: Do you rebuild pistons for other stores/repair shops? Yes we do. Contact us at sales@osmun.com for more info.

Installing Trumpet Mouthpipes & Bells: We can fit and install bells and mouthpipes on most trumpets. We can supply requested parts for you, or install parts supplied by you.

Vent Trumpet Valves: When you re-position a slide without depressing the valve the pressure differential creates a puff of air that can disrupt your embouchure. Drilling a small hole in the piston allows the pressure in the slide to equalize.

Cosmetic Overhauls: We do full cosmetic overhauls in lacquer, silver, and other finishes. Prices will vary depending on what is requested. Please contact us anytime for any overhaul questions.

Other Services: Install water keys (standard lever or Amado), dent removal, and lacquer stripping.

Most of these trumpet services can be scheduled to reduce the time you are without the instrument. Click here

French Horn Services

Chemical Cleaning/Ultrasonic Cleaning: Your instrument is completely disassembled and thoroughly cleaned. We remove old oil and grease as well as calcium carbonate and copper carbonate deposits using a combination of chemical and/or ultrasonic processes. Your instrument is then reassembled, lubricated, tuning slide legs are adjusted for smooth action, strung, and play tested. Springs are inspected and replaced if necessary. Regular chemical cleanings greatly retards the process of de-zincification ("red rot" or pink spots) and can double the life of the instrument. (Note to owners of Engelbert Schmid horns: We have many years of experience cleaning instruments and have done tests on our processes to make sure they are safe for instruments, players, and repair technicians. We don't use any chemicals that attack the metal of your instrument. Mr. Schmid has very specific ideas about how his horns should be maintained. If you wish, we are happy to maintain your instrument using his procedures and recommendations.)

Complete Valve Service (CVS): A complete mechanical tune-up for your horn. If your valves "klick-klack", this is a service that will help. We chemically clean the instrument, adjust the bearings for fast, silent action, machine out any end or side-to-side valve play, replace the rotor stops, springs (if needed), and restring. Slides are adjusted for tightness and optimal action.

Rotary Valve Rebuild: Rebuild and refit of each rotor valve of a french horn. Includes honing of casings, build up of the existing rotors, heavy nickel plate finish, all bearing (mechanical) work, new valve stops, strings, and springs. A full chemical/Ultrasonic cleaning is included with this service.

FAQ: Do you rebuild valves for other stores/repair shops? Yes we do. Contact us at sales@osmun.com for more info.

Drill Oil Ports: Drill oiling holes in the rotor bearing so that you can get oil into this vital area. Most sticking valves are caused by a buildup of corrosion in the top bearing caused by inadequate lubrication.

Convert to Screw Bell: We will detach the fixed bell of your horn, remove any major dents, and install your choice of an Alexander, Engelbert Schmid, or Finke bell ring. We recommend Schmid or Finke rings since both makers have after-market bells readily available. Both Finke and Schmid bells have the same dimension at the ring so their medium, large, and extra large flares will fit with no step at the ring. We may charge extra when installing Alexander rings on large bell horns due to the extra machining involved. On lacquered horns we will re-lacquer the bell and bell tail.

Install Buna Valve Stops: We install our special synthetic rubber bumpers in your choice of hardness and align and restring your valves. Our bumpers are impervious to oil and will not split or deteriorate with use. They won't need any further attention for four or five years.

Installing Horn Mouthpipes & Bells: We can fit and install bells and mouthpipes on most french horns. We can supply requested parts for you, or install parts supplied by you.

Other Services: Install water keys (standard lever or Amado), Install hand rests, Machine down stop arms, dent removal, and lacquer stripping.

Most of these French horn services can be scheduled to reduce the time you are without the instrument. Click here

Trombone Services

Trombone Slide Clean & Align: A complete tune up for your slide. We chemically clean both inner and outer slides, remove any minor dents in slide tubes, straighten, and align. We also replace the end bumper, water key cork, and spring (if needed). Your slide will be quick, responsive, and even.

Trombone Valve Cleaning: We will chemically clean any bell section with a traditional or upgraded valve. We remove old oil and grease as well as calcium carbonate and copper carbonate deposits using a combination of chemical and/or ultrasonic processes. Your bell section is then reassembled, lubricated, tuning slide legs are adjusted for smooth action, strung (if string action), and play tested. Springs are inspected and replaced if necessary. Regular chemical cleanings greatly retards the process of de-zincification ("red rot" or pink spots) and can double the life of the instrument.

Complete Valve Service (CVS): A complete mechanical tune-up for your trombone rotor valve. If your valve(s) "klick-klack", this is a service that will help. We chemically clean the instrument, adjust the bearings for fast, silent action, machine out any end or side-to-side valve play, replace the rotor stops, springs (if needed), and restring (if string action).

Rotary Valve Rebuild: Rebuild and refit of a rotor valve of a trombone. Includes honing of casings, build up of the existing rotors, heavy nickel plate finish, all bearing (mechanical) work, new valve stops, strings, and springs. A full chemical/Ultrasonic cleaning is included with this service.

FAQ: Do you rebuild valves for other stores/repair shops? Yes we do. Contact us at sales@osmun.com for more info.

Open Rotor Ports: The ports in the rotors of many trombones are undersized. This causes a restriction in the air flow that can cause the F attachment to feel stuffy and unresponsive. Opening up the ports in the rotor to full size can make a dramatic improvement in the playing qualities of your horn.

Convert Valve From String To Mechanical Links: Modern Mini-Bal links are silent, fast, require no adjustment and almost no maintenance. Older mechanical linkage trombones as well as newer instruments with inferior linkage parts can benefit from our German-made precision linkages.

Other Services: Install aftermarket valves, dent removal, and lacquer stripping.

Most of these trombone services can be scheduled to reduce the time you are without the instrument. Click here

Tuba/Euphonium Services

Complete Valve Service For Rotary Tuba Valves (CVS): A complete mechanical tune-up for your tuba. If your valves "klick-klack", this is a service that will help. We chemically clean the instrument, adjust the bearings for fast, silent action, machine out any end or side-to-side valve play, replace the rotor stops, springs (if needed), and restring. Slides are adjusted for tightness and optimal action.

Rotary Valve Rebuild: Rebuild and refit of each rotor valve of a tuba. Includes honing of casings, build up of the existing rotors, heavy nickel plate finish, all bearing (mechanical) work, new valve stops, strings, and springs. A full chemical/Ultrasonic cleaning is included with this service.

Tuba/Euphonium Piston Valve Rebuild: Rebuild and refit a set of pistons. Includes honing of pistons and casings, heavy nickel plate, replacement of corks felts, and springs (if needed). A full chemical/Ultrasonic cleaning is included with this service.

Vent Piston Valves: When you re-position a slide without depressing the valve the pressure differential creates a puff of air that can disrupt your embouchure. Drilling a small hole in the piston allows the pressure in the slide to equalize. This service does not affect the fit or tightness of the valve.

Convert Valve From String To Mechanical Links: Modern Mini-Bal links are silent, fast, require no adjustment and almost no maintenance. Older mechanical linkage tubas as well as newer instruments with inferior linkage parts can benefit from our German-made precision linkages.

Other Services: Install water keys (standard lever or Amado), Action slide adjustments, dent removal, and lacquer stripping.

Most of these tuba services can be scheduled to reduce the time you are without the instrument. Click here

Woodwind Services

Clean, Oil, & Align (COA) for Flutes, Double Reads, Clarinets, and Saxes: Your instrument is completely disassembled and thoroughly cleaned. Your instrument is then reassembled, lubricated, mechanisms are adjusted for smooth action, and play tested. Pads are inspected, sealed, and replaced if necessary. Regular cleaning services such as this greatly increases the functional life of the instrument.

Complete Overhaul/Re-Pad for Flutes and Reed Instruments: Your instrument is completely disassembled, thoroughly cleaned, and all of the pads are replaced. Your instrument is then reassembled, lubricated, mechanisms are adjusted for smooth action, and play tested.

Replacing Saxophone Neck Cork: For all saxes. This service can be done in the same day with an appointment.

Replacing Clarinet Tenon or Mouthpiece Cork: For all clarinets. This service can be done in the same day with an appointment.

Replacing Flute Head-joint Cork: This service can be done in the same day with an appointment.

Other Services: Dent removal, Sax neck repair, lacquer stripping, broken screw removal, and more.

Most of these woodwind services can be scheduled to reduce the time you are without the instrument. Click here