How to Choose a Google Ads Agency: What to Check First

Google Ads management means putting your ad budget directly in a third party's hands — the wrong agency doesn't just mean poor results, it means budget spent for nothing. Most agency websites make similar promises: "we'll boost your conversions," "we'll lower your cost per lead." Seeing the real difference requires looking past the marketing language to concrete ways of working.

This piece covers the criteria worth checking before hiring a Google Ads agency — especially account ownership and fee structure, two things most comparison articles gloss over. Many of these criteria carry the same logic as what we covered for choosing an SEO agency — because in both cases, the real question is transparency and data ownership.

Real experience and certification, or a template pitch?

If an agency quotes budget and strategy on the first call without examining your industry, competitive landscape, or past ad performance, they're likely running a standard campaign template. An e-commerce brand and a local service business need completely different campaign structures (Shopping vs. Search, targeting logic).

A Google Ads certification is a trust signal, but not sufficient on its own — it shows they passed Google's basic knowledge exam, not that they have real campaign experience. An agency that can walk you through a concrete past decision and why they made it is more credible than one that just shows a certificate.

The question worth asking: "What campaign types have you tried in a similar industry, and which ones didn't work?" An agency that only tells success stories is likely avoiding sharing what they learned from failed campaigns too — and that's actually the clearest sign of real experience.

Who keeps the ad account? (The most critical criterion)

In professional Google Ads management, account ownership should always stay with the client. The agency should run campaigns through manager-level access from its own agency account (MCC) — not open the account under its own name. A simple way to check: confirm you appear as the account with admin access in your Google Ads account, and the agency shows up as an invited manager account.

Google's own official documentation spells this distinction out: when an agency merely "links" to your account, it doesn't get administrative ownership by default — ownership is a separate privilege the account owner has to grant. So "your account is linked to us" doesn't necessarily mean "we own your account" — ask directly which one it is.

Skip this check and, when the relationship ends, you risk losing the account itself, months of accumulated campaign history, and the data on which keywords actually worked — starting from zero is far more expensive than fixing a bad campaign.

The same logic applies to the Google Analytics and conversion tracking tags used in campaigns — these should also connect to your own account, with the agency working only through manager access. Setup (opening accounts) and management (ongoing monitoring) are two different jobs — an agency that blurs the two and says "we hold the account, we'll grant access if you ask" hasn't actually clarified ownership.

Fee structure: the percentage-commission risk

Whichever model you choose, ad spend and the agency fee should appear as separate line items, with budget paid directly from your Google account to Google. The critical point is the percentage-of- spend model: if the agency's revenue is tied to your spend, increasing your budget can serve the agency's interest — that doesn't always mean bad intent, but the incentive structure isn't aligned with yours.

A fixed monthly management fee removes this conflict of interest entirely: the agency's revenue becomes independent of how much you spend, and depends only on how well they manage it. If you do work with a percentage-based agency, make sure any recommendation to increase budget is backed by concrete performance data.

Ask directly: "Is your fee independent of my ad spend, or tied to it?" If the answer isn't clear and immediate, weigh that ambiguity as seriously as the price itself when comparing quotes.

Do they guarantee a specific result or ROI?

Ad performance varies by industry, competition, seasonality, and bidding strategy. An agency promising a fixed cost-per-click or "you'll get back X times your investment" is either setting an unrealistic expectation or planning to hit that number with low-quality, irrelevant traffic.

A credible agency describes a test-and-learn process instead: data gets collected in the first weeks, which keywords and ad copy work becomes clear, and budget gets reallocated accordingly. They offer a clear process and timeline, not a fixed number.

This mirrors SEO for a reason: no agency controls Google's ad auction algorithm on its own, any more than one controls the search ranking algorithm. They can optimize your bidding strategy, audience, and competitive positioning, but the final cost per click depends on market dynamics — which is why a fixed-number promise always deserves skepticism.

Does reporting show traffic, or conversions?

Rising clicks and impressions alone aren't a business outcome. A good report shows spend, clicks, conversions, and cost per result together — not just "we got X clicks this month." Clarify what metrics you'll actually see in the monthly report during the consultation.

"Conversion count" alone isn't sufficient either — which conversions are real leads and which are low-quality form submissions should be broken out. Without that distinction, a reported "conversion increase" can be a number that looks good without reflecting a real business result.

Making that distinction requires a properly built conversion and goal-tracking setup on your own site — this is usually set up as part of the website development process, and ad management then relies on it.

Is conversion tracking set up before launch?

Conversion tracking (form fills, calls, sales) should be set up before a campaign launches — added later, the first weeks of data are lost and which keyword actually worked never becomes clear. If an agency can't give you a clear answer to "when will conversion tracking be set up," they may be skipping this foundational step.

Contract terms and lock-in

An agency pushing a mandatory long-term contract with an early-exit penalty is keeping you through a contract clause, not through results. A good agency keeps you with performance, not a binding clause — look for a model with a reasonable notice period built in.

One more red flag: a proposal demanding the full year's fee upfront. This can signal the agency plans to retain you by locking you in early rather than by keeping you satisfied over time. A written agreement on scope, budget range, and fee, reviewed monthly, puts both sides on clearer footing.

The advantage of hiring the same team as SEO

Buying Google Ads from one agency and SEO from a separate team is common, but it has a cost: the organic and paid sides working without visibility into each other, unnecessary spend on keywords you already rank for organically, and measurement scattered across two reports. With one team, which keywords you're already strong on organically and which need ad support can be planned as a single strategy.

Before you decide

To recap, here's your checklist for evaluating a Google Ads agency:

• Do they propose a strategy specific to your site/industry, or a template?
• Is the ad account opened in your name?
• Is the fee structure clear, with any percentage-commission risk openly discussed?
• Do they avoid guaranteeing a specific result or ROI?
• Does reporting cover conversions, not just clicks?
• Is conversion tracking set up before the campaign launches?
• Does the contract keep you through results, not a clause?

At Groopy, our Google Ads Management service applies all of these principles: the ad account stays yours, budget is paid directly to Google, and the management fee is stated separately and clearly. Not sure where to start? Book a discovery call.