It is well documented that to properly clean a clock movement,it must be completely disassembled.This picture shows an American movement ready to go to the cleaning machine.
This picture shows the Ultrasonic cleaning machines.The movements are usually cleaned from 3-5 minutes(but can be longer if the movement is very dirty).

From the cleaning solution it is rinsed in a special type of rinsing solution,that removes the cleaning solution and prevents metal parts from rusting.This is also from 3-5 minutes.
From the rinsing solution it is blown dry with an air compressor to remove as much solution as possible.It is then placed into a drier box & dried for about 15-20 minutes.
From here it is taken back to the workshop for a complete inspection.I check every gear(teeth,pinion & arbors to make sure nothing is damaged,loose or bent),all levers(are checked for damage or anything that might prevent proper operation),the main plates(are inspected to make sure that they are not bent,that all pillars & posts are tight & also all pivot holes are checked for wear & marked for new bushings if needed).
I then polish all bad pivots using a Watchmakers or Jewellers Lathe.
Once all of the pivots have been polished,it is time to do any bushing work.This is done using the Bushing Machine.

I then replace any mainsprings that are set(which means that they do not open up or unwind as much as they should).The new or old springs are properly lubricated and then wound back onto there arbor or rewound back into there mainspring barrel.This is done using the Mainspring winder.
The serviced movement gets a final Ultrasonic cleaning before being reassembled.Once it is reassembled it is test run on a stand for several days to check for timing and overall proper functioning.
It is then placed into its case and set in beat.On Grandfather clocks this is done at the customers house after the movement has been reinstalled into the case.

I offer a 1 year warranty on all repairs.