Removing unsightly webbing improves the appearance of your home, but more importantly reduces the spider activity in those areas as well as the activity that invades through doors, windows, and other points of entry where webs are typically found.
Scheduled repellent applications protect your home from spiders and other unwanted "guests". 95% of all pest problems come in from the outside of the home and stopping them before they come inside reduces spider problems in your living areas to near zero.
Treatment of attic, crawl, and other obscured areas reduces spider populations harboring and breeding there, greatly reducing the number that attempt to gain entry into your home.