The answer to 'how long does spider treatment last' is that a professional spider treatment typically lasts for 3-6 months. This is because the active ingredients in the pest control products used by professionals have a residual effect that continues to kill spiders and prevent new infestations for several months. The exact duration can vary depending on factors like the size of the home, the severity of the spider problem, and the specific treatment method used.
It's important to note that homeowners may need to schedule follow-up treatments every few months to maintain control of a spider problem. DIY spider treatments, such as sprays or baits, generally only last for 1-2 months before needing to be reapplied. Calling a professional pest control company is often the best way to achieve long-lasting results against spiders in the home.