How often should the average homeowner have their exteriors sprayed for optimal protection?

For the average home, an exterior spraying every 90 days should suffice to protect from most insects. Though Pest Arrest's proprietary spraying methods are highly effective in protecting against many legged invaders, complete protection is part of an integrated pest management strategy, and has to be combined with other methods of pest control to truly prevent problems 100%. Proper sanitation and exclusion is critical to protect your home from pests, as is environmental control and monitoring. IPM can be a daunting task, so if in doubt it is best to speak with a pest management professional to develop a strategy that will work for you and your property.