Just contact Mack’s Exterminating Co. to get a free quote for any of your pest issues. We use the best chemials available which are water based, dry in 15-20 minutes, and you can’t smell them. The residual effect is approximately 90 days, so consquently we do a lot of quarterly or 90 day general cleanout sprays for our customes. Cost depends on the size of your home and the specefic pest we are treating. Please contact Mack’s with any pest questions you may have. Thank you!