The main difference is how Google decides which searches your ads can match. Traditional keyword targeting lets you choose specific keywords, match types, and negative keywords, while Google Local Services Ads (GLSA) use a keywordless model based on your selected services, job types, service areas, business information, and other signals.
With traditional Google Ads, you might target keywords such as “emergency plumber near me” or exclude searches like “plumbing jobs.” With GLSA, you generally do not build a keyword list. Instead, you tell Google what services you provide and where you operate, and Google determines which relevant local searches may trigger your ad.
That makes GLSA simpler to manage, but you have less direct control over individual search queries. Your best levers are accurate service selections, focused service areas, a complete Business Profile, strong reviews, and monitoring the leads you receive.
In short: traditional keyword targeting gives you more query-level control, while keywordless GLSA targeting relies more heavily on Google’s understanding of your business and the customer’s local intent.