The answer to 'spider damage' is that spider webs and activity can sometimes cause minor cosmetic damage to homes, but are rarely a serious structural issue. Common signs of spider activity include cobwebs, egg sacs, and seeing the spiders themselves. While spiders are generally harmless, their webs can be unsightly and may indicate larger pest problems that need addressing.
The best approach is to regularly inspect for and remove any spider webs, especially in corners, attics, and other quiet areas. This can typically be done safely with a broom or vacuum. For more severe infestations or if you're concerned about potential structural damage, it's best to contact a professional pest control expert who can properly identify the type of spider and recommend the appropriate treatment.