Should I create a different ad group in Google AdWords for each of my services?

Yes, you should generally create a different ad group in Google AdWords for each of your services. The number of ad groups you need for a Google AdWords campaign depends on the number of services you are advertising within a given Google AdWords campaign.

When you’re advertising multiple services with Google AdWords, you’ll usually want to separate your Google ads into different ad groups. Ad groups allow you to assign certain keywords to specific groups of ads.

Imagine you’ve created a single ad campaign for two services: Google AdWords consulting and Google AdSense consulting. You can divide your Google AdWords campaign into two ad groups, which you can call “AdWords consulting” and “AdSense consulting”. In each ad group, you include keywords that are specific to each service. Naturally, you wouldn’t want the keywords “AdSense consulting” to trigger an ad for your AdWords consulting, and vice versa. That is why you separate your services into ad groups and assign distinct keywords for each.

See: What makes people instantly click Google Ads now?