We offer two types of spinet regulation.
Improve ($480) encompasses what can be readily adjusted in 2 hours plus tuning. This work may make a big difference to the playability of the instrument but will not go beyond what can be reached without removing the action.
The Full option ($1,980) seems expensive, but is actually the best value if you can afford it. Noises are solved, stability is reinstated, the action plays really well, and the instrument sounds musical. Couple this with a Dampp-chaser and the piano you have gains a new life (see Upright Regulation for overview).