I get asked this question more than almost any other: "Can I just run Google Ads myself, or do I actually need to hire someone?" It's a fair question. Google makes it look easy—they want you to think it's easy—and agencies aren't cheap. But I've watched businesses waste five figures finding out the hard way that "easy to start" and "easy to do well" are very different things.
So let me give you an honest breakdown. When does it make sense to manage Google Ads yourself? When does working with an agency or freelancer actually add value? And what are the warning signs that you're out of your depth?
When doing it yourself actually works
Let's start here, because there are situations where self-management makes perfect sense.
If you're just starting out, have a simple product range, and your monthly ad spend is under £1,000, you can probably handle Google Ads yourself—at least initially. You'll make mistakes, but the cost of those mistakes is relatively small, and you'll learn quickly what works and what doesn't.
The same applies if you've got genuinely simple campaigns. If you're running straightforward Search campaigns with a handful of products, clear conversion tracking, and you're willing to put in the time to learn properly (and I mean properly—not just watching a couple of YouTube tutorials), you can get reasonable results.
But here's the critical bit: you need time. Not just to set things up, but to optimise them every week. To analyse performance, adjust bids, refine keywords, test ad copy, review search terms, and keep up with Google's relentless feature updates. If you're already stretched thin running your business, "I'll just do it myself" often becomes "I'll just let it run and hope for the best." That's when the wheels come off.
The hidden costs of DIY that nobody mentions
When people compare the cost of hiring help versus doing it themselves, they usually forget to count the expensive bits.
Your time has a value. If you're spending ten hours a week managing Google Ads when you could be developing products, improving customer service, or actually running your business, that's a cost. And if you're the business owner, your time is probably worth more per hour than you think.
Then there's the learning curve. Google Ads has been around for over twenty years, and it's evolved into something far more complex than it was even five years ago. Performance Max campaigns alone now span Shopping, Search, YouTube, Display, Discover, and Gmail—that's six different channels you need to understand. Smart Bidding uses machine learning that behaves differently depending on dozens of factors. The platform changes constantly.
I've spent two decades immersed in this world, and I'm still learning. If you're trying to pick it up whilst also running an e-commerce business, you're going to make expensive mistakes. Broad match keywords that haemorrhage budget. Poor campaign structures that confuse Google's algorithms. Conversion tracking that's slightly off and feeds bad data into your automated bidding. These mistakes cost real money, and they're often invisible until you know what to look for.
When an agency or freelancer becomes worth it
The crossover point usually happens somewhere between £2,000 and £5,000 in monthly ad spend. Once you're spending that much, small optimisations start to matter. A 20% improvement in performance isn't just nice to have—it's thousands of pounds difference over a year.
This is where experience pays for itself. Someone who's built hundreds of Google Ads accounts knows what good looks like. They spot the warning signs early. They know which new features actually deliver results and which ones are just Google trying to get you to spend more. They understand the nuance of how Smart Bidding responds to different situations.
But here's what really matters: they have the time and focus to do the detail work that makes the difference. Reviewing search terms properly. Building negative keyword lists that actually prevent wasted spend. Testing ad variations systematically rather than randomly. Structuring product feeds to maximise relevance. Monitoring auction insights to understand competitive dynamics.
If you're trying to squeeze this into evenings and weekends around everything else you're doing, it simply won't get done properly.
Google Ads freelancer versus agency: what's actually different
If you've decided you need help, the next question is whether to work with a freelancer or an agency. Having been both, I can tell you the differences matter.
Agencies—especially larger ones—often have multiple layers. You'll meet senior people during the pitch, then get handed off to a junior account manager who's looking after fifteen other clients and learning on the job. Management fees are higher because they're supporting that infrastructure. And when your account manager leaves (which happens frequently), you start over with someone new who doesn't know your business.
Freelancers and small specialist consultancies give you direct access to experience. You're working with the person who actually knows what they're doing, not their inexperienced cousin. Communication is faster. There's no game of telephone between you, an account manager, and the person actually running your campaigns.
The downside? Capacity. A freelancer can only take on so many clients. If they're good, they're probably already fairly busy. And if they get hit by a bus (or just go on holiday), you need to know what the backup plan is.
There's no universally right answer here. It depends on whether you value consistency of relationship or breadth of resources. But if you're a small to medium e-commerce business, I'd argue direct access to expertise beats agency infrastructure almost every time.
The warning signs you're out of your depth
Right, let's be blunt. Here are the signs that trying to do Google Ads yourself is costing you money:
Your campaigns have been running for months with minimal changes. If you're not actively optimising every week, you're almost certainly wasting budget.
You're not entirely sure if your conversion tracking is working properly. If there's any doubt here, everything else is built on sand.
You're using automated campaigns (like Performance Max) but you don't really understand what they're doing or how to influence them. Automation isn't "set and forget"—it needs active management and guidance.
Your Search campaigns are still using phrase match or exact match exclusively because you're scared of broad match. The platform has evolved. If your strategy hasn't, you're leaving money on the table.
You're getting clicks but not enough conversions, and you're not sure why. This could be landing page issues, targeting problems, or structural account issues—but you need to diagnose it properly.
You find yourself thinking "Google Ads just doesn't work for my business." It almost always does if it's set up correctly. This thought usually means something's fundamentally wrong.
The honest answer nobody wants to hear
Here it is: most e-commerce businesses should get expert help with Google Ads, but not necessarily from day one.
Start yourself if you're small and budget-conscious. Learn the basics. Understand how the platform works. But plan for the point where you'll need help, and don't wait too long to ask for it. The cost of muddling through with mediocre results usually exceeds the cost of working with someone who knows what they're doing.
And when you do look for help—whether it's a freelancer, a small specialist like me, or a larger agency—focus on finding someone who'll actually care about your results. Someone who'll take time to understand your business, not just bolt a template strategy onto your account. Someone who'll be there when you need them, not hidden behind layers of account managers.
Because ultimately, the Google Ads agency versus DIY question isn't really about capability. It's about time, focus, and whether the person managing your campaigns has enough skin in the game to genuinely care when things aren't working. Get that right, and the rest tends to follow.