Should I Hire a Google Ads Agency? Here’s How to Decide
Jennifer
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You’re spending money on Google Ads. Or you’re about to. And the question you keep coming back to is whether you should hand it to an agency or just do it yourself.
It’s a fair question. The management fee isn’t small. And there are plenty of stories about agencies that charge thousands per month and deliver nothing but a report full of numbers that don’t mean anything.
But there are also plenty of businesses that tried to manage it themselves, burned through their budget and ended up hiring an agency anyway, just with less money to work with.
So should you hire a Google Ads agency? Here’s a straight answer.
The Honest Answer
It depends on three things: your budget, your time and your expertise.
If you’re spending under $2,000/month on ads and you have time to learn the platform, you can probably manage it yourself with some guidance. The platform is accessible. There are good resources out there. And at that budget level, an agency fee will eat into your spend significantly.
If you’re spending $3,000/month or more, competing in a market where clicks cost $5-$50 each, and you don’t have someone in-house who knows the platform properly, an agency will almost certainly get you a better return than doing it yourself.
The management fee isn’t the cost. The cost is what happens to your ad spend without proper management. And that’s usually where the real money gets wasted.
What You’re Actually Paying For
A common misconception is that you’re paying an agency to “set up ads.” But the setup is the easy part. What you’re really paying for is ongoing optimisation, and that’s where the value lives.
A good Google Ads agency handles strategy, keyword research, account structure, ad copy, bid management, negative keyword management, conversion tracking, landing page feedback, testing and reporting. Every week.
They’re reviewing search term reports to cut wasted spend. They’re testing new ad variations to improve click-through rates. They’re adjusting bids based on what’s converting and what isn’t. They’re watching your cost per lead and finding ways to bring it down.
That work takes 5-10 hours per week for a mid-sized account. If you’re a business owner doing this alongside running your actual business, something gets neglected. Usually it’s the ads.
If you want to see exactly what Google Ads optimisation should include, we’ve broken it down in full.
When Hiring an Agency Is Worth It
There are clear scenarios where hiring an agency makes financial sense.
You’re spending $3,000+/month on ads. At this budget level, even a small improvement in cost per lead or conversion rate can pay for the entire management fee. A 20% improvement on a $5,000/month ad spend is $1,000/month in recovered value, which often covers the agency fee on its own.
You’re in a competitive market. Industries like legal, finance, real estate, medical and trades have high CPCs in Australia. A poorly structured campaign in these markets can waste thousands per month on irrelevant clicks. An experienced agency knows how to avoid that.
You’ve tried managing it yourself and results are inconsistent. If your cost per lead fluctuates wildly, your campaigns run broad match keywords without proper negatives, or your conversion tracking isn’t set up properly, you’re leaving money on the table.
You don’t have time to manage it properly. Google Ads isn’t set-and-forget. It needs weekly attention. If you’re checking in once a month and hoping for the best, an agency will deliver better results simply by giving it consistent attention.
You need accountability. A good agency gives you clear reporting on cost per lead, cost per acquisition and return on ad spend. You know exactly what your money is doing. When you manage it yourself, it’s easy to lose track.
When It’s Probably Not Worth It
Not every business needs an agency. Here’s when it might not make sense.
Your ad budget is under $1,500/month. At this level, the management fee is likely to be disproportionate to the ad spend. You’re better off learning the basics yourself or booking a one-off strategy session with a consultant who can set things up properly and give you a plan to follow.
You have genuine in-house expertise. If someone on your team has real Google Ads experience, not just “I’ve boosted a few posts,” but actual campaign management experience, keeping it in-house can work. The key is making sure that person has enough time dedicated to it.
Your business model doesn’t suit paid search. Not every product or service has strong search demand. If people aren’t actively Googling what you sell, Google Ads may not be the right channel regardless of who manages it.
You’re not ready to spend on ads at all. If your offer, website or landing page isn’t ready to convert traffic, spending money on ads (with or without an agency) is premature. Fix the foundation first.
The DIY Route: What It Actually Takes
Managing Google Ads yourself is absolutely possible. But it requires more than most people expect.
You need to learn keyword match types, negative keywords, bid strategies, Quality Score, conversion tracking, ad extensions, responsive search ads, audience targeting and campaign structure. Then you need to apply that knowledge consistently.
Budget 5-10 hours per week for a properly managed account. That includes reviewing search terms, adjusting bids, testing ad copy, monitoring conversions and checking your landing page performance.
The learning curve is steep for the first three to six months. During that period, your ad spend is partly funding your education. An agency eliminates that ramp-up cost because they already know what works.
If you do go the DIY route, at minimum get a professional to audit your account every quarter. A fresh set of expert eyes will catch things you’ve missed. Most Google Ads consultants offer standalone audits for $500-$1,500.
The Real Cost of Getting It Wrong
This is the part most people underestimate.
A poorly managed Google Ads account doesn’t just underperform. It actively wastes money. Here’s where the damage happens.
Broad match keywords without negatives. Your ads show up for searches that have nothing to do with your business. You pay for every click regardless.
No conversion tracking. You have no idea which keywords, ads or campaigns are generating leads. You’re optimising blind.
Sending traffic to the wrong page. If your ad sends people to your homepage instead of a dedicated landing page, your conversion rate drops significantly. A strong landing page built for conversions can double or triple your results from the same ad spend.
Set-and-forget management. Campaigns that haven’t been touched in weeks or months accumulate wasted spend. Bid adjustments, keyword refinements and ad copy tests need to happen regularly.
Poor Quality Score. Google rewards relevant, well-structured campaigns with lower CPCs. A messy account pays more for worse ad positions.
The cumulative cost of these mistakes can easily exceed the cost of an agency fee. A business spending $5,000/month with a 30% waste rate is burning $1,500/month on clicks that will never convert. An agency fee of $1,500-$2,500/month that eliminates that waste pays for itself.
Agency vs Freelancer vs In-House
Each option has trade-offs.
Agency ($1,500-$5,000+/month). You get a team, structured processes, regular reporting and a broader skill set. Best for businesses spending $3,000+/month on ads that want a hands-off, results-focused approach. The downside is cost and the risk of being handed to a junior.
Freelancer ($800-$2,500/month). You work directly with the person managing your account. Often more affordable than an agency with senior-level expertise. Best for smaller budgets or businesses that want a close working relationship. The downside is limited capacity and no backup if they’re unavailable.
In-house ($70,000-$100,000+/year salary). Full-time focus and deep knowledge of your business. Best for larger companies with significant ad spend and complex campaigns. The downside is cost (salary, super, leave, training) and the risk of a single point of failure.
For most Australian businesses spending $3,000-$15,000/month on Google Ads, a specialist agency or experienced freelancer offers the best balance of expertise and cost. We’ve covered the freelancer vs agency decision in more detail separately.
How to Tell If Your Agency Is Doing a Good Job
If you do hire an agency, here’s how to hold them accountable.
Your cost per lead should trend down over time. Not every month, but the overall trajectory should be improving as the agency optimises.
You should understand your reports. If you can’t look at your monthly report and know whether things are going well, the agency isn’t communicating clearly enough.
You should see what they’re changing. Ask for a change log or activity summary. If nothing’s been adjusted in weeks, they’re not actively managing your account.
Your campaigns should get better, not just bigger. A good agency improves efficiency before scaling spend. If they’re constantly asking for more budget without improving cost per lead first, question why.
You should feel informed, not confused. The best agencies explain what they’re doing in plain language. If every conversation is jargon-heavy and you leave more confused than you started, that’s a red flag.
If you’re already running Google Ads and want to know whether your campaigns are actually performing, that’s worth reading.
Not Sure If You Need an Agency?
We’ll take a look at what you’re currently doing and tell you straight whether an agency would improve your results or whether you’re better off managing it yourself with some guidance.
No lock-in contracts. No pressure. Just an honest assessment.