We’ve designed our filter strategy around the idea that ads don’t need to be served to a client 5 or 10 times to generate a conversion. Once a client is served an ad, they are immediately placed on the Google IP exclusion list within the Adwords campaign system.
This strategy is more restrictive than other programs out there, but particularly for home improvement companies and most small service businesses, this level is necessary. When companies who are competing are generally small enough that the owners are monitoring ad spending closely, they tend to click on each other. In some industries, especially when times are slower, click fraud can be the majority of the ad spend