Maybe. Its best if you notify the neighbours if you think we’ll need to access their property at all. Sometimes, we need to set ladders up on their side of the fence for safer angles. This is common if the houses are close together. With Roof Cleanings, we’ll need to do some precautionary watering during the roof spray and also cleanup after the moss removal. We like to chat with them before entering, but its best if they’ve had the heads up from you already.