PPC consultant or PPC agency: how to choose the right help

If you are comparing PPC consultants with PPC agencies, you have usually already decided that paid search matters to the business. The harder question is what kind of help will make it work better. The two models are built differently, and the right choice depends far less on price than on what is actually holding your account back.

This is a guide to telling the difference, including the cases where an agency is the better answer.

A PPC agency sells capacity. You get a team, a process and someone accountable for keeping the account running every week: builds, ad copy, feed changes, bid adjustments, reporting. Good agencies are very good at this, and the work is real.

A PPC consultant sells judgement. You get a senior person who decides what the account should be doing and why: which campaigns deserve budget, what the bidding should optimise towards, whether the tracking can be trusted, and how search fits alongside everything else the business spends on. Some consultants also run the account day to day. Some advise a team that does.

Most of the confusion comes from treating these as two prices for the same thing. They are answers to two different problems.

• Good ideas exist, but nobody has the hours to build them.
• Campaigns, feeds and ad copy fall behind new product launches.
• Reporting arrives late or not at all.
• You need cover across several platforms at once, every week.

If this sounds like your situation, more hands will help, and an agency's team structure is designed to provide them.

• The account is busy, but nobody can explain why budget sits where it does.
• Platform ROAS looks healthy while the business's margin does not.
• Google Ads, GA4 and your own sales figures disagree, and nobody has settled which to trust.
• Changes are made every week, but you could not say which of them worked.
• You already have an agency or an in-house team, and you want an independent view of what they are doing.

More activity rarely fixes these. They need someone senior enough to step back, question the targets and change the direction of the work.

Who will actually work on the account?

With an agency, the person in the pitch is often not the person in the account. That is not necessarily a problem, as long as you know who does the work and how experienced they are. With a consultant, the answer should be the person you are talking to.

What will they want to change first?

A useful early answer is about the business, not the account: margins, which products matter, how a sale is counted. If the first answer is a restructure or a new campaign type, ask what decision that change is meant to improve.

How will you both know it is working?

Agree the measure before the work begins. Platform-reported conversions are a starting point, not a verdict. The stronger answer ties paid search to revenue or profit you can see in your own numbers.

What happens when they are away?

This is the fair challenge to the consultant model. A single senior person needs a clear answer for holidays, illness and busy periods, whether that is a small team behind them, documented processes, or an in-house owner who can keep things running.

Agencies typically charge a monthly retainer or a percentage of ad spend, sometimes with a set-up fee. Consultants charge a day rate, a project fee or a smaller retainer for a defined amount of senior time. Comparing the monthly figures alone misses the point. The useful comparison is what each fee buys: hours of execution, or decisions that change where the rest of the budget goes.

A percentage-of-spend fee also deserves a direct question. It rewards spending more, which is not the same thing as spending better.

Many growing e-commerce brands end up with a hybrid model. An agency or in-house team runs the account, and a consultant sets the strategy, the measurement and the commercial targets the work is judged against. Done well, the two make each other better: the team has a clear brief, and the consultant's recommendations actually get built.

Write down the three things you most want to be different in six months. If they are mostly about output, such as more campaigns, faster builds or more channels covered, start with capacity. If they are mostly about decisions, such as profitable growth, trustworthy numbers or knowing where the next pound should go, start with judgement.