I've had Snyder's Weed Control take care of my lawn for the past four years now. I stuck with them because the results have always been good. Their lawn treatment keeps the weeds away for about a year so it's definitely worth it. They have really convenient service too which is great. They communicate well and always call ahead to let you know when they'll be there. Even if I'm not home they still do the work and leave the bill on the door. Great service.