I can put you in touch with people who can help with your grit blasting of beams/brickwork etc, chemical paint removal, chemical cleaning etc. Although we are only a very small company, (and content to stay that way), we have over 30 years experience, and have been engaged several times, at Windsor Castle. As well as cleaning up all the fire damaged beams, brick and stonework, after the fire (we were there for 9 months!), we have cleaned/stripped the Pool Room, The Royal Stables, and various buildings on the site.