Quick Answer: Keywords in Google Ads determine which searches trigger your ads. The three essential keyword skills are: choosing keywords with purchase intent (not research intent), using the right match type (phrase or exact for small budgets), and building a strong negative keyword list to prevent irrelevant clicks. This guide covers keyword research, match types, bidding, and the most common keyword mistakes that waste small business advertising budgets.
Keyword Intent: The Most Important Concept
Not all keywords are equal. High-intent keywords convert; research keywords educate. A plumber should target high-intent:
- ✅ “emergency plumber near me” — ready to buy now
- ✅ “water heater replacement cost [city]” — actively shopping
- ❌ “how to fix a leaky pipe” — wants to DIY, not hire
- ❌ “what is water pressure” — general research, no purchase intent
Focus your budget on keywords that indicate the searcher wants to hire someone or buy something, not just learn.
Keyword Match Types
Match types control how precisely a search must match your keyword to trigger your ad:
Broad Match (Default — Use with Extreme Caution)
Google shows your ad for searches that are “related” to your keyword, including synonyms, variations, and related topics it decides are relevant. A broad match keyword “plumber” might trigger for “DIY pipe repair” or “plumbing school near me.”
Risk: Broad match burns through budget on irrelevant searches very quickly. Only use broad match with robust negative keyword lists and after understanding your search term data from phrase/exact campaigns.
Phrase Match “keyword”
Your ad shows when the search contains your keyword phrase (with words possible before and after). “Emergency plumber” in phrase match might trigger for “24-hour emergency plumber Austin” or “emergency plumber cost” — both relevant.
Best for: Small businesses starting out. Good balance of reach and relevance.
Exact Match [keyword]
Your ad shows only when someone searches exactly your keyword (or very close variants). [emergency plumber] would trigger for “emergency plumber” and “emergency plumbers” but not “emergency plumbing service.”
Best for: Your highest-converting keywords once you know they work. Lower volume but highest precision.
Building Your Keyword List
Step 1: Seed Keywords
Start with the obvious terms customers use to search for you: your service + location variations, your service + “near me,” and your service + buying intent terms (“cost,” “price,” “hire,” “best,” “company”).
Step 2: Use Google’s Keyword Planner
In your Google Ads account → Tools → Keyword Planner. Enter your seed keywords to find:
- Monthly search volume
- Competition level
- Suggested bid range
- Related keyword ideas you might not have considered
Step 3: Analyze Search Terms (After Launch)
After your campaign runs, check “Search terms” in your Campaigns view weekly. This shows the exact searches that triggered your ads. Add irrelevant terms as negative keywords and add high-performing terms as exact match keywords.
Negative Keywords: The Most Underused Tool
Negative keywords prevent your ads from showing for irrelevant searches. Every service business should add these immediately:
- “DIY,” “how to,” “yourself” — people who want to do it themselves
- “free,” “cheap,” “discount” — often low-quality leads who won’t pay fair rates
- “job,” “jobs,” “career,” “hiring” — people looking for work, not services
- “school,” “training,” “course” — people in your industry, not customers
Add industry-specific negatives based on your search terms report.
Frequently Asked Questions
How many keywords should I have per ad group?
5-15 closely related keywords per ad group is the industry standard. All keywords in an ad group should be relevant to the same search intent and the same ad. Avoid putting “emergency plumbing” and “bathroom remodeling” in the same ad group — the messaging for each is completely different and combining them forces weak, generic ads.
Should I bid on my competitors’ brand names?
Bidding on competitor keywords is legal and common. You can show your ad when someone searches a competitor’s name. Considerations: competitor keywords often have lower quality scores (since your landing page doesn’t mention the competitor), driving up costs. It can be effective if you have a clear differentiator (“prices starting 20% lower” or “next-day availability”). Test with a small budget before committing.
More in the Google Ads Series
Next Steps
- Identify your biggest gap: Review the concepts in this guide and identify which one would have the most immediate impact on your business if you addressed it this week.
- Take one focused action: Choose the single most important takeaway from this guide and implement it before moving on to the next article.
- Measure your baseline: Before making any changes, note your current state — traffic, conversion rate, or whatever metric is most relevant — so you can measure whether your action worked.
- Return in 30 days: Check the specific metrics mentioned in this guide after 30 days of consistent implementation. Progress compounds over time.
- Connect your marketing channels: Use Krystl to see how all your marketing efforts are performing together — not just in isolation.
See which marketing channels are actually driving revenue for your business
Krystl connects your Google Ads, Google Business Profile, and website analytics to show you what’s working — without spending hours in dashboards. Built for small business owners who want clarity, not complexity.
Last Updated: April 2026 | Published by DigitalSMB
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