Repair / Restoration
I started my career working in a specialty instrument repair shop, so I have a pretty solid background in this kind of work. Today I take in repairs only when I have the time, since building new guitars is what I mainly do.High quality classical and flamenco guitars should be built with repairability in mind. Traditionally made guitars were typically built with hide glue (reversible) and finished with french polish or oil varnish. These were very repair friendly guitars. Quality violins are still made this way.
Factory made guitars are generally more difficult to repair. They are built using irreversible adhesives like epoxy or polyurethane, and sprayed with industrial finishes like polyurethane. These modern finishes offer good protection, but can be difficult to repair. How the guitar was made pretty much determines how easily it can be fixed.
I do a lot of french polish repair work, which may entail refreshing the finish and filling dings. Re-frets, set-ups, nut, saddle, and structural repairs are common jobs as well.
Here are pictures of some not so recent repair jobs:
Ramirez 1A



Here's a photo of the neck block and side after completion. It turned out very well! The total time logged on this repair was about 50 hours. I've excluded other pictures of the repair but you can contact me if you want to see more of them.

Here is a photo of a guitar built by Miguel Rodriguez. It was brought to my shop for some French polish touch up. The top is redwood, back and sides are Brazilian rosewood.

The guitar was brought to me for a bunch of relatively minor repairs. Here, a top crack gets glued together with hide glue. The crack will later be cleated on the inside, and touched up on the outside. Oil varnish was Manuel's finish of choice.

Its neck was badly warped, possibly because it was built with white glue and suffered "joint creep" over time. I removed the fingerboard, routed a channel in the neck, inserted a graphite rod in the neck, and replaced the fingerboard. This fixed the neck warpage. The picture was taken with an old Pentax spotmatic camera that I had loaded with black and white film.