We manage Google Ads for a living, which makes us exactly the wrong people to ask whether you should hire someone to manage your Google Ads. So we have tried to write the version of this we would want to read if we were on the other side: the real costs of doing it yourself, the real costs of hiring, and the honest cases where the answer is “keep doing it yourself.”
The short version: this is a decision about what a mistake costs, not about whether you are capable. Most business owners can learn Google Ads. Almost none of them will maintain it every week for a year, and the account punishes neglect faster than any other channel you run.
What does it actually cost to run Google Ads yourself?
Less than an agency on paper, and often more in practice. The fee you avoid is visible. The clicks you waste are not — they arrive as a slightly worse cost per lead, spread across the month, with no line on any invoice.
The benchmark worth holding in your head: across 13,474 US search campaigns measured from April 2025 through March 2026, the average cost per click was $5.42 and the average cost per lead was $66.69 (WordStream). Home and home-improvement businesses paid more — $8.33 a click and $90.92 a lead. Business services ran $5.87 and $93.69.
At those prices, waste is expensive fast. A self-managed account that lets 15% of its clicks go to irrelevant searches — a very ordinary amount for an account nobody has pruned in a while — is spending a management fee’s worth of money every month on people who were never going to call.
Then there is time. Setting an account up takes an afternoon. Keeping it healthy takes a recurring block every week: read the search terms, add the negatives, look at what the bids are doing, check that conversion tracking still fires. None of that is difficult. All of it is the kind of thing that slides when the business gets busy, and Google Ads is unusual in how directly it charges you for sliding.
What does a Google Ads agency cost?
Fees vary widely, and the structure matters as much as the number. The common models are a flat monthly fee, a percentage of ad spend (typically 10% to 20%), or a hybrid of the two (WordStream). Percentage models mean the agency earns more when you spend more, which is a conflict worth naming before you sign anything.
For reference, our ads management starts at $599 a month, and we do not mark up ad spend — your budget goes to Google and our fee is a separate line you can see. We go through what a fee should include, and what the wide range of prices actually buys, in how much Google Ads management costs.
The way to judge any fee is against the account, not in the abstract. A $599 fee on $1,000 of monthly spend is a big fraction. The same fee on $8,000 of spend is small, and a 20% improvement in cost per lead at that level pays for it several times over.
When is running Google Ads yourself the right call?
More often than agencies admit. Self-managed makes sense when:
- You have one clear service and one clear area. A single campaign for a single offer is manageable. The complexity that needs an outside hand comes from multiple services, multiple markets, or multiple campaign types running at once.
- Your budget is modest. Under roughly $1,000 a month, a management fee is a large share of what you are spending. Learn the platform, run it tight, and revisit when the budget grows. We cover how to size that budget honestly in how much a small business should spend on Google Ads.
- Someone will actually check it every week. Not you-in-theory. A specific person, a specific slot on the calendar, a specific checklist. If that is true, DIY is viable.
- You want to learn it. Understanding how your own ads work is worth something even if you hand them off later, because you will know when an agency is talking sense.
When should you hire an agency?
Hire when the cost of getting it wrong exceeds the fee, or when you have honestly stopped maintaining it. Specifically:
- You are spending enough that efficiency matters more than the fee. Past a few thousand a month, a competent manager saving 20% on cost per lead is worth well more than they charge.
- You cannot tell what a lead costs you. If your reporting shows clicks and impressions but not cost per lead, you are flying without the one instrument that matters. Fixing conversion tracking is often the single most valuable thing an agency does in month one.
- The account has drifted. Search terms nobody has read in months, ads that have not been tested since launch, a bid strategy that got reset in a panic. Drift is normal. Leaving it is expensive.
- Your business is local service. Home services, contractors, medical, legal — the categories with the highest clicks and the most spam leads to dispute. These are also the categories where Google Ads and Local Service Ads need to be balanced against each other, which is a judgment call most owners would rather not make weekly.
What should you expect an agency to actually do?
Nothing magical. The value is discipline applied to a machine that rewards discipline. A good agency will:
- Read your search terms every week and add negatives before the waste compounds.
- Test ads against each other on a schedule, and let the data pick the winner rather than the person who wrote it.
- Set up conversion tracking that measures calls and forms as leads, then report cost per lead as the headline — not clicks.
- Manage bids toward cost per lead and leave the strategy alone long enough to learn. Google’s own documentation describes a learning period after any significant change, and resetting it every time a slow week comes along is the most common way owners sabotage their own accounts.
- Tell you when the landing page is the problem, because the click is only half the job.
If an agency you are talking to cannot describe its weekly routine in those terms, ask what you are paying for. We put together ten questions to ask before hiring any agency, and most of them apply directly here.
What do the numbers look like when it is managed well?
Since the benchmarks above are averages, it is fair to ask what disciplined management produces against them. Two accounts we run, both local service businesses in categories where the WordStream average cost per lead is around $90:
- A North Texas waste and dumpster company generated 13,278 leads in twelve months at $16.76 per lead, while tripling its ad spend.
- A New Jersey HVAC company went from roughly 15 leads a month at $80 to $300 each to 1,375 leads in a single month at $2.85, and sustained 5,665 leads at $7.63 across 2025.
Those are the two best accounts on our books, so treat them as the ceiling rather than the promise. But the gap between them and the category average is the gap that weekly discipline creates, and it is the number to weigh a management fee against. The full figures are on our Google Ads management page.
So which should you do?
Answer two questions.
What does a bad month cost you? If your monthly spend is small enough that a 20% swing in efficiency is a rounding error, run it yourself and learn. If that swing is a real amount of money, hire someone.
Will the weekly maintenance actually happen? Be honest. If the answer is “probably not after the first month,” then you are choosing between paying an agency and paying Google for the same neglect. One of those gets you something.
Everything else — control, learning curve, how much you trust agencies — tends to follow from those two.
If you want a straight read on your own account, book a call. We will look at what you have and tell you whether it needs help or just needs a checklist — and if the answer is the checklist, we will say so.