1-Stop Homes Watch Service is an NWHA Accredited Home Watch Business. The National Home Watch Association (NHWA) is the nation’s largest professional association of home watch professionals. NHWA runs thorough background checks, so you can be assured we do not have a past that would put your investment at risk. The NHWA has professionally trained and certified 1-Stop Home Watch Service owner, David Ling, to perform the home watch inspection in a manner that will catch an obvious problem before it becomes a disaster. 1-Stop Home Watch Service is bonded and insured as you would expect of a professional service.