Callington Mural Trail Refurbishment and Preservation

Hello Everyone,  Newbie here, advice needed, please.  I live in Callington Cornwall, and we have a number of large and small murals on several of our buildings and walls depicting scenes of the local area, characters etc.  If you Google  "Callington Mural trail"  you will see what I mean.

They are in desperate need of cleaning, refurbing and preserving, Callington is a small rural town and the Town Council cannot afford to finance it although willing in all other ways.

Question, subject to all the correct forms being filled in and the correct procedures followed, is this something the Heritage Fund could help with?

Any help or advice would be gratefully received.

Mike T