If you’re spending between $10,000 and $50,000 a month on Google Ads, it has become a serious part of the business. It brings in a big share of your sales, and it charges your credit card every few days, whether anyone is watching or not.
The account runs and revenue comes in. But you have a nagging sense it could do more, and you’re not sure whether to keep running it in-house or hand it to someone who does this all day.
Maybe you’re in the account yourself. Maybe you’ve handed it to someone on your team. Either way, the pattern below will probably feel familiar.
Where does growth come from when you run Google Ads yourself?
For most founders running Google Ads themselves, the real worry is where the next level of growth will come from. Should you scale the campaigns you have, add new ones, or look somewhere else entirely?
You’re not fully confident in your own Google Ads skills, so you make small, careful changes. Real revenue flows through the account, and you don’t want to break what works. You keep things running, and you add budget when a campaign shows “Limited by budget”. That’s often where ROAS starts to slip, and it’s not always clear why.
Beyond that, you don’t make big moves, because you can’t see where they would be.
If you’ve handed Google Ads to someone on your team, you’ll probably recognise the same pattern from the outside: an account that ticks over but never finds its next gear.
Why does in-house Google Ads stall at $10–50K a month?
At $10–50K a month you can’t afford a dedicated Google Ads specialist, so the account lands on a generalist whose week is split across a lot of jobs. Usually that’s the marketing person who also runs Meta Ads, TikTok, email and the website, and who is now also working out how AI can make all of that faster.
Meta and TikTok live on creative: hooks, AI tools, shooting and editing video. That work is essential there, and it takes hours. When ad fatigue hits on Meta, results drop that week and someone notices.
Google Ads doesn’t suffer from ad fatigue in the same way. Search and Shopping keep running, so nothing forces anyone to look at the account, and it’s easy to push to next week. Before you know it, months have gone by without a real experiment or a meaningful change.
The hours that do go to Google Ads mostly go to reporting: pulling numbers into a spreadsheet, tweaking it, talking it through in a meeting. Once in a while something gets added or reviewed, but that’s ad hoc. Nobody can say what’s being tested right now, or how it’s going.
Running an account well uses those same hours differently. First the checks, then fixing what’s wrong, then working through a plan for the account: what you’re testing, what you’re changing, and what the focus is this month. In-house time mostly reports on the past, while managing the account well means steering it.
That shows up in two ways.
The frozen account
The account runs on autopilot. Often it was inherited, or set up by someone who has since left, and nobody is quite sure what’s inside it anymore. New campaigns and product lines get added on top. Revenue keeps flowing, so only small, cautious changes get made.
Google doesn’t stand still, though. When the platform shifts, a frozen account loses money quietly. A recent example is Google’s change to how Smart Bidding handles ROAS targets when a campaign is budget-limited or overperforming. We’ve seen several accounts on target ROAS bidding drop right after that change. If nobody is watching, the bad news only shows up a couple of months later, when someone finally asks why a once-successful campaign has been declining.
AI without judgment
The newer trap: unsure what to do, the person running the account asks Claude or ChatGPT, gets a thorough, prioritised list of fixes, and implements it without question. That goes wrong in two ways.
Too many changes, too fast. In one account we looked at, a search campaign was performing fine. Then the AI recommended a complete overhaul: keywords reshuffled into new ad groups, and a pile of new ad groups and ads created at once. That wiped out the campaign’s stability, and both click volume and sales turned erratic.
Using AI well means knowing which lever matters, and when a drastic move is right versus when you’re disturbing something that works. AI doesn’t have that judgment (yet), and neither does a nervous operator checking its output.
Everything flagged, nothing solved. The opposite failure is a dozen issues surfaced and the real cause never found. In one account, performance dropped and the cause wasn’t in Google Ads at all. The conversion tracking had changed on the site and was never updated for those campaigns. Nothing inside Google Ads would have shown it. Only someone who sees the whole business, and understands how a change like that affects Google Ads, would catch it. This kind of problem happens all of the time, tracking problems were the most common findings in our 2026 audit report.
What does it look like when an expert takes over?
When an expert takes over, the first result is usually finding growth already hidden in the account.
It doesn’t start from zero. By the time a store signs with us, we’ve already been through the account and know the most important changes. Simple fixes we’re confident about go in straight away. Then we map out what the account should look like: new campaigns to add, existing ones to transition, and changes to the product feed.
Adding new campaigns is the easy part. Changing campaigns that have run for years is where you have to be careful, especially in a big account. Building out the full plan often takes two to three months.
That’s deliberate. Google Ads needs time to adapt to each change, and we need to see what actually works. Coming in from outside, we sometimes expect a change to help, and the account proves us wrong.
Growth hiding in plain sight is what we found when a B2C automotive products store came to us last year. Its account had run untouched for about two years. It was messy, but it delivered consistently. It just didn’t grow.
The main problem was too few campaigns, each doing several jobs at once. We restructured the account, broadened targeting and added experiments. Within two months, revenue was up about 40% year over year, at a slightly lower ROAS of 2.8.
That answers the “where does growth come from” question. The account as it was couldn’t grow, and adding budget would only have dropped the ROAS. The opportunity was there, but it took an expert eye to see it.
A garden supply store spending about $20,000 a month had the opposite problem. Its Google Ads costs and CPCs kept rising year after year, and the owner was starting to question whether Google Ads still made the store money. We worked on the existing account for a while, then tried something radically different.
The products are hard to choose between, so instead of sending people to category pages, we sent them to a quiz that helps them pick the right product. We cut ad spend from $20,000 to $4,000 a month, and the revenue attributed to the new campaigns still rose 42%. That’s a ROAS about seven times higher than before.
In both cases the owner was doing their reasonable best. What the account lacked was focused, expert attention every week, and a new idea once in a while.
What does it cost to have an expert manage your Google Ads?
Expert Google Ads management is charged in one of three ways: a fixed fee, a percentage of ad spend, or pay for performance. Percentage fees usually run 5–15% of spend, and some agencies charge 20–25%.
A percentage fee grows every time you raise the budget, whether or not results improve. We charge fixed tiers instead, agreed upfront based on your spend, starting at $2,000 a month.
For reference, a senior digital marketing manager in the US earns about $109,000 a year in base salary, according to Payscale. With taxes, benefits and tools on top, that’s roughly $140,000 a year, against $24,000 a year for management at our starting tier.
That’s not a like-for-like comparison. An in-house marketer does far more than Google Ads. But it shows the gap. And if you hire for Google Ads, hire someone senior at running Google Ads accounts. Someone senior at managing agencies is a different skill, and that mismatch is one of the most common hiring mistakes we see.
What do you keep when you hand over Google Ads to us?
You keep ownership of everything. The account is always yours. We work in it as managers.
There’s no long contract. You can stop with 30 days’ notice.
We don’t touch your Meta account or your website. We do tell you what we see there, especially on the site: missing landing pages, pages that make buying harder, ideas worth testing.
Every change in your account is made by a person. We use AI heavily to check the account and shape the strategy, but it never makes changes on its own. That’s the opposite of the “AI without judgment” trap above.
Store Growers reviews and manages Google Ads for ecommerce stores spending roughly $10–50K a month. The first step is a free account review. Tell us what you think is wrong and give us read-only access, and we’ll show you where the account loses money. We’re not a fit for stores just getting started (begin with layer 1 yourself) or for non-ecommerce businesses.
Should you keep Google Ads in-house or hire someone?
Keep Google Ads in-house if someone on your team knows the account and is strong across both Search and Shopping. Plenty of people are good at one and not the other. If yours tests things, knows the account’s history and is senior at it, you may not need outside help.
Keeping it in-house also makes sense in two other situations:
- You want Google Ads steady, not growing. If the account has plateaued at a level you’re happy with, and someone internal keeps it ticking over, you don’t need new ideas from outside.
- The economics are too tight. With very low margins, or an ad budget that’s already under pressure, a management fee on top is hard to justify.
Hire someone if the person running it internally is stretched, running things on autopilot, or driven by AI where nobody really checks the recommendations, and “how do we grow this?” is still an open question. In that case the account is costing you more than a management fee would.
There’s a middle option, too: keep running it yourself, but have an expert look at it. Spending less than $10K a month? Book a coaching call and leave with a prioritised list of what to fix. Spending more? Start with a free account review, and decide afterwards.
If you do hire, the next question is who. We compare the options in freelancer vs. agency.
