Yes, using lime in a crawl space can affect termite control service contracts as it may void termite insurance or warranties. Lime can compromise the physical inspection process for termites, making it difficult to detect termite activity. Instead of using lime, it is recommended to focus on moisture control and proper maintenance techniques to prevent termite infestations. This includes using a moisture barrier, like a vapor barrier, to prevent ground moisture from reaching the crawl space. Consult with a professional termite control service for specific guidance and to ensure compliance with the terms of your contract.