Finding specialized guides for in-depth colonial history and architecture walks?

Some independent historians and heritage specialists offer focused walking tours on colonial architecture and history, especially in Galle Fort, Colombo, and Jaffna. These are usually found through word of mouth, cultural organizations, or recommendations from heritage hotels rather than mainstream tourism platforms. Being specific about your interest in architectural detail or historical context helps match you with the right guide. These specialists often have access to buildings and stories that general guides don't. They're usually more expensive but provide significantly richer experiences for those with a serious interest.