We adjust the repair according to your wishes and your trumpet's needs. To give you an accurate estimate of the repair or service needed, our technicians need to inspect your trumpet. This is free but requires that we have the instrument at hand. You are always welcome to visit our shop, send us an e-mail (with pictures and a description of the problem), or send us the instrument. Contact us if you need help with the shipping.





We control all solderings and give you a status of the trumpet's general condition. 

  • Slides are loosened 
  • Ultrasonic cleaning and descaling
  • Change of water key cork 
  • Valves are oiled and slides are lubricated
  • The trumpet is test played

Cleaning and adjustment

If you want your trumpet to live a long and happy life, we recommend that you give it a yearly visit to our workshop for a cleaning and adjust. 

  • Loosening of all slides
  • Ultrasonic cleaning and descaling
  • Change of water key cork and spring
  • New felt and springs in the valves
  • Fine adjustment of valves
  • Valves are oiled and slides lubricated
  • Smaller dents on the bell and slides are removed
  • The trumpet is test played

Cleaning and individual adjustment 

The individual adjustment includes a regular clean and adjust, and a personal session with our brass technician

  • External polishing
  • All dents are removed
  • Valve alignment
  • Individual session with our brass technician, where intonation, resistance and timbre are adjusted according to your wishes.

We can also fix this:

  • Dents 
  • Loosening of mouthpiece and slides
  • Silver/gold plating
  • Valve alignment
  • Re-lacquer
  • Change of leadpipe
  • Change of tuning slide
  • Solderings 
  • Various re-builds and repairs 



Repairs are invoiced per initiated half hour. We are happy to give you an estimate of the cost, but cannot always foresee the full extent of the repair before we start working on the instrument. 

Ultrasonic cleaning - what is it?

Have you bought an instrument that you really love? With ultrasonic cleaning, your instrument is cleaned thoroughly and gently in a bath of water through ultrasonic soundwaves. This method spares the insides of your instrument the wear and tear usually inflicted by traditional brush cleaning. Please bear in mind that ultrasonic cleaning may cause damage to the lacquer, primarily on older instruments.

Cork for water keys brass wind instruments.

Measures: 9 x 3½ mm

(The price is for 1 pc.)


Spring for water key on Vincent Bach instruments


Grease for slides and cork. A popular cork grease from La Tromba.  

Content 15 gr


A single stop rod nut that screws onto the stop rod on Bach Stradivarius trumpets & cornets to prevent the 3rd slide from falling out. The distance that these are screwed on regulates the maximum distance the 3rd slide can be extended.


It is possible to try out different tunings slides at our workshop assisted by our technician. Prices are without applying the spare part.

Price from

It is possible to try out different lead pipes at our workshop assisted by our technician. Prices are without applying the spare part.

Price from

Guarantee workshop for:  

Several manufacturers have chosen i.K.Gottfried as their Danish guarantee workshop, which gives us the opportunity to assess damages and make repairs covered by the instrument warranty. As a guarantee workshop we can easily help you, if you have discovered a flaw in your instrument. 


Get an estimate

Getting an estimate of the repair is free, but it is impossible for us to estimate a job without inspecting the instrument physically. That is why repairs estimated over the phone or e-mail is not binding until we confirm it upon receiving the instrument. You can reach us in the following ways: 


Call us on 
3311 1047

Click for opening hours


Visit our store  
Kronprinsessegade 44C

1306 København K.
Click for opening hours

  Send us an e-mail at

We try to reply as quickly as possible, but at times it can take us 1-2 workdays to get back to you.