Home / Blog / Ecommerce Google Ads Agency Feb 10, 2026 5 min read Ecommerce Google Ads Agency: Maximize Sales
Most online stores I talk to run Google Ads. Most of them also waste money on campaigns that look busy but barely break even.
Matt Kundo Marketing Consultant
Most online stores I talk to run Google Ads. Most of them also waste money on campaigns that look busy but barely break even. The gap between a DIY ad account and one run by a pro is huge. Recent data shows that managed campaigns pull about 1.7x the ROAS of those left on auto-pilot. That gap is the line between growth and flat sales.
If you want to know what an ecommerce Google Ads agency does, what it costs, and how to pick a good one, keep reading. For the big picture on PPC help, start with my guide to Google Ads management services.
Table of Contents
- What Does an Ecommerce Google Ads Agency Do?
- Why Ecommerce PPC Management Needs Experts
- Key Services to Expect
- Benchmarks That Matter
- How to Choose the Right Ecommerce Google Ads Agency
- Ready to Scale Your Ecommerce Sales?
- Frequently Asked Questions
What Does an Ecommerce Google Ads Agency Do?
An ecommerce Google Ads agency runs paid search for online stores. This is not the same as lead gen or brand ads. Selling products online calls for its own set of tools and skills.
The work breaks into three core areas. First, Google Shopping ads. These now take in 76.4% of U.S. retail search ad spend. They also drive 85.3% of all retail clicks on Google. Second, Performance Max. These campaigns use AI to show your ads on Search, Display, YouTube, Gmail, and Discover at once. Third, Search and remarketing. These catch high-intent buyers and bring back past visitors.
A strong Google Shopping ads agency also handles product feed work. That means cleaning up titles, images, prices, and descriptions so your products show up and win clicks. Without clean feed data, even a big ad budget will not help. Your products simply will not appear for the right searches.
Why Ecommerce PPC Management Needs Experts
Ecommerce paid search got a lot harder in the past two years. Smart Bidding now powers over 80% of Google Ads campaigns. Google keeps pushing more AI tools like Performance Max.
Annie Atkins, a PPC Expert at Google, puts it well: "AI tests and refines creative elements in real-time. Click-through rates and conversions are maximized as a result."
But AI alone is not enough. The 1.7x ROAS lift from expert management comes from choices that bots cannot make. Things like who to target, which terms to block, where to shift budget, and what to test next. If you want help picking the right person, my guide on how to hire a Google Ads expert is a good place to start.
Ecommerce PPC management also means steady product feed work. A broken feed can tank your Shopping results overnight, no matter how good your bids are. Feed errors, missing images, or wrong prices can get your products pulled from Google Shopping in hours. That is why this role calls for a specialist, not a general marketer who dabbles in PPC.
Key Services to Expect
When you vet an ecommerce Google Ads agency, look for these skills:
- Google Shopping Campaigns: Feed setup, bid tuning, and negative keyword clean-up. The average Shopping CPC is just $0.66. That is far less than Facebook ($0.97) or Instagram ($1.01-$1.20).
- Performance Max: Campaign setup, audience signals, asset testing, and goal tuning.
- Search and Remarketing: Keyword plans for buying-intent queries. Dynamic Remarketing to bring back shoppers at the product level.
- Tracking and Analytics: Google Analytics 4 setup, value tracking, and multi-touch credit.
- Product Feed Work: Title and image fixes, custom labels, and extra feeds for better reach.
The average cost per sale through Shopping Ads is $45.27. That makes it one of the best channels for online sellers when run right.
Benchmarks That Matter
Before you hire an ecommerce Google Ads agency, know the key numbers. Lebesgue's 2026 study of 5,000+ online stores found that average ROAS for Performance Max is 125%. The average cost to gain a new customer is $17.08.
More numbers to track:
- Shopping Ads Conversion Rate: 1.91% on average
- Shopping Ads CTR: 0.86%. That is nearly double display ads at 0.46%.
- Revenue Share: Up to 18% of online revenue comes straight from Google Ads. About 36% of all online buys are shaped by Google Search or Shopping Ads.
These are just averages. A good agency should beat them. As PPC Analyst Enya Key says: "Winning PPC will start before the search. Upper funnel spend will drive cheaper clicks, warmer leads, and better results than search alone."
Want to know what sets top firms apart? Read my take on the best Google Ads agencies. The short answer: deep niche skills and clear reports.
How to Choose the Right Ecommerce Google Ads Agency
Not all PPC firms can handle online store accounts well. Here is what to check:
Online Store Experience: Ask for case studies from real retailers. A Google Ads management agency that mostly runs lead gen will not think about ecommerce the right way.
Performance Max Skills: Google Ads pro Claire Jarrett says to look for teams that focus on "testing creative assets, using signals like remarketing lists and Customer Match, and switching to Target ROAS bidding."
Clear ROAS Reports: Demand simple, honest reports. With global ad spend set to hit $318 billion in 2026, you cannot afford murky data.
Feed Know-How: Your agency must know Merchant Center, product feeds, and feed tools inside and out. Ask how they handle feed errors, custom labels, and product-level bid changes. These details make or break Shopping campaign results.
Ready to Scale Your Ecommerce Sales?
I build ecommerce Google Ads campaigns that focus on real returns, not vanity metrics. My method pairs hands-on management with the insight that AI alone cannot give you.
Here is what I bring to the table:
- Custom Google Shopping and Performance Max setups
- Product feed tuning for more clicks and better match quality
- Smart bid management with Target ROAS and value tracking
- Clear monthly reports with ROAS and CPA figures
- Ongoing A/B tests on ads, audiences, and landing pages
Ready to stop leaving money on the table? Book a free call to talk about your ecommerce PPC plan. Or check out my full services to see how paid search fits the big picture.
Frequently Asked Questions
How much does an ecommerce Google Ads agency cost?
Most charge a flat monthly fee ($1,500 to $5,000 for small to mid-size stores) or a cut of ad spend (10-20%). Some mix both. The best fit depends on your ad budget and how many products you sell. Be wary of agencies that lock you into long contracts before showing results.
What ROAS should I expect from ecommerce Google Ads?
The average ROAS for Performance Max is about 125%. But well-run accounts often hit 200-400%. Your results depend on product margins, order size, the market, and how good your ecommerce PPC management is. Higher-ticket products tend to see stronger ROAS since the revenue per sale covers ad costs more easily.
How long before I see results from ecommerce PPC management?
Most campaigns show early data in 2-4 weeks. Real gains take 60-90 days. That is how long it takes to gather enough sales data to fine-tune bids, targeting, and feeds. Plan for steady growth over the first quarter.
Matt Kundo Digital Marketing provides data-driven paid media services and ecommerce PPC skills from Austin, TX. Get in touch to start growing your online sales.
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