Do you have a pest or rodent problem? Better Quality Pest Control is a premier exterminator in Diamond Bar and we're here to help. Better Quality Pest Control has been ranked as one of the best exterminators in Diamond Bar. We're very thankful for the residents of Diamond Bar who continue to recommend us to others. We know that you have choices when it comes to selecting an exterminator company to get rid of your pest or rodent problems. We want to provide you with the necessary info you need to be able to choose the right Diamond Bar pest control company for your situation.