e.g.]. Notably, megamasers are found preferentially in Seyfert 2 (Sy2) galaxies [@1997ApJS..110..321B], and in particular in Compton-thick ones [@2008ApJ...686L..13G] which, according to the AGN unification scheme, are likely to be those where the obscuring structure is seen nearly edge-on. High quality hard X-ray (&gt; 10 keV) data coupled with high resolution radio maps of the nuclear emission allow new studies of the physics of obscured AGN. Some previous work concentrated on the connection between masing activity and high obscuring column densities in active nuclei, identifying some general and phenomenological results [@2008ApJ...686L..13G; @2013MNRAS.436.3388C]. However, many questions are still unanswered. Physical conditions, like the temperature, density and pressure of matter in the vicinity of the SMBH, are still uncertain. It is not completely clear whether the maser emission is associated with the outer part of the accretion disk, or if it is part of the toroidal structure obscuring the nucleus along our line of sight. In this paper we first present new spectral analyses of *NuSTAR* observations of megamaser sources, using a sample of local AGN with good quality X-ray data and radio maps. We then combine the information from the hard X-ray and radio bands to derive a physical picture of 