I audit Google Ads accounts regularly. Some of them are disasters — not because the person running them is incompetent, but because they were set up following outdated advice or just grew organically without any structural discipline. The structural issues compound over time: irrelevant keywords get added, ad groups bloat, match types blur together, and bidding signals get polluted with bad conversion data.
Good campaign structure is the foundation that every other optimization sits on top of. Get this right and performance issues become much easier to diagnose and fix. Get it wrong and you’re optimizing noise.
The Account Architecture Principle
Every Google Ads account should follow a logical hierarchy: Account → Campaigns → Ad Groups → Ads → Keywords. Each level serves a purpose. Campaigns control budget and location targeting. Ad groups cluster related keywords and control ad messaging. Ads test copy variations. Keywords control what searches trigger your ads.
The most common structural mistake I see: mixing unrelated services or audiences in a single campaign. A plumbing company running one campaign with keywords for drain cleaning, water heater installation, and emergency plumbing all mixed together. Each of those services has different intent signals, different competitive landscapes, different CPCs, and different ideal landing pages. They need separate campaigns or at minimum separate ad groups with dedicated budgets.
Campaign Segmentation by Intent
Segment your campaigns by intent level, not just by service. For most service businesses, I structure around three intent tiers:
- High-intent branded: Searches for your business name specifically. Low volume, high conversion rate, protect this traffic above all else.
- High-intent service: Searches with clear buying intent — “emergency plumber near me,” “Botox San Diego,” “divorce attorney consultation.” This is your primary growth campaign.
- Research-phase: Comparative and informational queries — “best plumber reviews,” “how much does Botox cost.” Lower conversion rates but often lower CPCs. Useful for remarketing list building.
Ad Group Structure
Tight ad groups win. One theme per ad group, maximum 10-15 closely related keywords. Each ad group should have 3-5 Responsive Search Ads with distinct messaging angles (one leading with urgency, one with proof/authority, one with specific offers).
The benefit of tight ad groups: higher Quality Scores because Google can clearly see the relevance between your keyword, your ad, and your landing page. Higher QS means lower CPCs. The compounding effect of better QS on a well-structured account versus a bloated one is significant over months of spending.
Match Types in 2026
My current match type strategy is simple: start with phrase match on your most important keywords, use exact match for your highest-converting terms where you want tight control, and use broad match only if you have 300+ conversions per month in the campaign and a well-developed negative keyword list. Broad match without conversion history to guide the algorithm is an invitation to waste budget.
Google has pushed broad match aggressively. For large e-commerce accounts with massive conversion data, it can outperform. For local service businesses with 20-50 conversions per month, I consistently see phrase and exact match outperform broad match on cost per conversion.
Negative Keywords: Your Most Important Campaign Setting
Build your negative keyword list before you launch, not after you’ve spent money on bad clicks. Standard negative lists for service businesses should include:
- Competitor brand names (unless you’re running a competitor campaign intentionally)
- DIY terms (“how to,” “yourself,” “tutorial,” “guide”)
- Job-seeking terms (“jobs,” “hiring,” “career,” “salary”)
- Research terms that don’t convert for your business (“reviews,” “cost of” — evaluate these on your specific data)
- Geographic negatives if you have tight service areas
I spend time on negative keywords every week for every client account. It’s never finished — new irrelevant search terms show up in the search terms report continuously.
Landing Page Alignment
Each ad group should have a dedicated landing page or at minimum a dedicated section of a service page. The headline of the landing page should mirror the primary keyword and ad messaging. The page should have one primary conversion action (call or form fill), no navigation menu to distract visitors, social proof (reviews, certifications, photos), and a fast load time.
I’ve seen accounts where restructuring landing pages — keeping the same ads and same keywords — doubled conversion rates. The traffic was already qualified. The landing page was failing to convert it.
Bidding Strategy
Manual CPC for new campaigns with limited conversion history. Maximize Conversions (not a ROAS target) once you have 30+ conversions in a 30-day window. Target CPA once you have 60-80 conversions per month with stable cost per conversion data. Resist the temptation to set ROAS targets too aggressively too early — the algorithm needs room to find conversions before you constrain it.
For help structuring or auditing your PPC account, check out my Google Ads management services. Reach out for a free account audit. More PPC strategy on the blog.
Frequently Asked Questions
What is the best PPC campaign structure for a small business?
For most small service businesses, start with three campaign types: branded (protecting your own name), high-intent service (core buying-intent keywords), and a single competitor or comparison campaign if budget allows. Each campaign should have tightly themed ad groups with 5-10 related keywords, 3-5 RSAs with distinct angles, and dedicated landing pages. Keep the structure simple enough to manage properly — a well-maintained simple structure beats a complex neglected one.
How many keywords should be in an ad group?
For traditional Search campaigns, 5-15 closely related keywords per ad group is optimal. More than 20 keywords in one ad group typically signals that the theme is too broad and should be split. Ad groups with very few keywords (1-2) are fine for high-value exact match terms where you want to control messaging tightly. The goal is that every keyword in the ad group is genuinely related enough that one set of ads will speak to all of them.
What is the difference between broad match, phrase match, and exact match?
Exact match only triggers your ad on searches that closely match your specified keyword. Phrase match triggers on searches that contain your keyword phrase in order. Broad match triggers on searches that Google’s algorithm determines are related — the most expansive and least controlled option. For most small business accounts, phrase match and exact match provide better control over spend and higher Quality Scores. Broad match works best with large conversion histories for algorithm optimization.
How do I set a Google Ads budget for a small business?
Start with a budget that allows at least 10-15 clicks per day to accumulate enough data for optimization (divide your average CPC by your daily budget to check this). For most local service businesses, $50-150/day ($1,500-4,500/month) is a meaningful testing budget. Less than $1,000/month rarely produces enough click volume for reliable performance data. Set campaign-level budgets rather than a single account budget to maintain visibility into where money is going by service or intent segment.
What is a good conversion rate for Google Ads?
Average Google Ads conversion rates across industries run 3-6%. For well-optimized local service campaigns targeting high-intent keywords with dedicated landing pages, 8-15% is achievable. Legal and medical services with strong local targeting and compelling landing pages can see 10-20% conversion rates on calls. The meaningful benchmark is your own historical performance and your cost per conversion relative to your customer value — not industry averages.
Should I use Smart campaigns or manual campaigns?
For accounts spending over $1,500/month with an experienced manager, manual campaigns with smart bidding (Target CPA or Maximize Conversions) consistently outperform fully automated Smart Campaigns. Smart Campaigns (designed for self-service advertisers) give up too much control. Expert-managed Search campaigns with appropriate automated bidding provide the best balance of algorithm power and human strategic control. If you don’t have time to manage campaigns properly, Smart Campaigns are better than nothing.
