Understanding Google Ads match types is the difference between paying for customers and paying for tire-kickers. Match types control how loosely Google interprets your keywords — and the default (broad match) can quietly spend your whole budget on searches that have nothing to do with your business. Here's the plain version.
The three match types
There are three, from loosest to tightest:
- Broad match — you type
plumber miami(no punctuation). Google shows your ad for anything it thinks is related: "plumbing school," "how to unclog a sink," "plumber jobs." Widest reach, most waste. - Phrase match — you type
"plumber miami"in quotes. Your ad shows when the search includes that meaning in order: "emergency plumber miami," "best plumber miami fl." A solid middle ground. - Exact match — you type
[plumber miami]in brackets. Your ad shows only for that term and very close variants. Tightest control, least reach.
Why broad match burns money
Broad match is the default, and Google recommends it, because it spends more. Without tight control, it interprets your keyword generously and shows your ad to people who will never buy — job seekers, DIYers, students, people in other cities. You pay for every one of those clicks. For a small budget, broad match with no guardrails is the fastest way to spend $500 and book nothing.
What to actually use
For most local service businesses, start with phrase and exact match. They keep you in front of people actually looking for your service without the broad-match spray. Structure it like this:
- Exact match on your money keywords:
[emergency plumber miami] - Phrase match to catch natural variations:
"emergency plumber" - Skip broad match until you have data and negatives dialed in
Negative keywords are the other half
Match types decide what you show for; negative keywords decide what you don't. Even phrase match will catch some junk, so add negatives from day one and keep adding weekly. Common ones for local services:
- jobs, salary, career, hiring
- free, cheap, DIY, how to
- school, course, training
- competitor and franchise names
Read your Search Terms report every week and add whatever irrelevant phrase you find. This single habit saves more money than almost anything else in the account.
Broad match isn't always the enemy
Once you have solid conversion tracking, a good pile of negatives, and Google's smart bidding aimed at conversions, broad match can actually work — the AI uses your conversion data to find good searches you'd never have thought to add. But that's an advanced move for a mature account, not a starting point. Earn your way there.
A quick mental model
Think of it like fishing. Exact match is a single hook on the exact spot you know fish are — precise, low waste, limited catch. Phrase match is a net in the right area. Broad match is dynamite in the whole lake: you'll catch fish, but also boots, weeds, and a lot of water you paid to blow up.
Start tight, watch your search terms, build your negative list, and only loosen up once you can see clearly what's converting. Getting match types right won't make your ads famous, but it will stop the silent leak that sinks most first-time campaigns.