Hi. I manage a care home and we have been requested by the fire officer to replace a fair number of internal doors with FD30 doors and frames. It's a listed building and you can imagine the costs will be exorbitant, very disruptive to the dementia residents and not preserving the heritage of the building. What are the options to avoid a full replacement and instead use other methodologies and technologies to achieve the same outcome? Are there companies that specialise in this that I can contact to get quotes from to discuss with the fire officer?

Yes - https://envirograf.com/

They are specialists in tested and certified methods to upgrade existing heritage doors.

Your fire risk assessment and escape strategy should identify which doors need to be fire resisting.