PPC agency vs in-house

At some point, most businesses spending seriously on pay-per-click advertising ask the same question. Should we keep using an agency, or would we be better off hiring someone internally? There is no universal answer. An internal PPC specialist gives you proximity, control and deep knowledge of the business. An agency gives you broader expertise, additional resources and the ability to scale without building an entire internal function. This article sets out how we compare the two models when businesses ask us about PPC management.

The right choice depends on your spend, complexity, ambitions and how much PPC expertise you genuinely need.

The mistake is comparing one number with another.

Agency fee versus employee salary. That is only one part of the equation.

PPC agency vs in-house: the short answer

If you want the simple version.

Neither model automatically performs better. A poor agency can waste huge amounts of money. So can a poor internal hire.

The real question is which model gives your business the strongest combination of expertise, accountability and commercial efficiency.

Comparing the true cost

This is where most comparisons go wrong.

A business might see an agency charging £2,000 per month and compare it with hiring a PPC manager on a £45,000 salary. At first glance, the employee may appear more expensive. We have broken down the fee models and typical bands in more detail in how much do PPC agencies charge.

But salary is not the total cost of hiring. An internal PPC role can include:

• Salary
• Employer National Insurance
• Pension contributions
• Recruitment costs
• Paid leave
• Sick leave
• Training
• Software
• Equipment
• Management time
• Bonuses
• Benefits

Some of those are easy to look up. The current employer National Insurance rates and thresholds are published on GOV.UK, so you can add that figure to the salary before you compare anything.

Then there is the biggest hidden cost.

What happens if you hire the wrong person?

Recruitment takes time. Notice periods take time. Replacing someone takes time. Campaign performance does not politely wait while you rebuild your team.

If you want a benchmark rather than a guess, the CIPD publishes annual resourcing and talent planning research covering median recruitment costs and hiring difficulty across UK employers.

An agency normally gives you access to multiple people for one fee. That may include:

• PPC strategist
• Google Ads specialist
• Paid social specialist
• Tracking specialist
• Designer
• Copywriter
• CRO support
• Account manager

You may not use all of them every week. But they are there when needed.

The cost comparison is not agency fee versus salary. It is agency capability versus the total cost of building that capability internally.

Expertise and specialist knowledge

This is usually the strongest argument for an agency.

A good PPC agency manages multiple accounts across multiple industries. That creates exposure to:

• Different bidding strategies
• Different campaign structures
• Different conversion problems
• Different markets
• Different landing pages
• Different budgets
• Different lead quality issues
• Different platform changes

When Google changes Performance Max. Or introduces a new bidding feature. Or Meta changes how campaigns are structured. An agency is usually seeing the impact across many accounts at once.

An internal manager only sees what happens inside your business. That does not make them less capable. In fact, a strong in-house PPC manager can be exceptional. But they are operating within a narrower environment.

The in-house expertise problem

One person is rarely excellent at everything. You may hire someone who is brilliant at Google Ads but weak on:

• Meta
• Analytics
• Tracking
• CRO
• Creative
• Landing pages
• Feed management
• Reporting

At agency level, those skills can be distributed across several people. Internally, you may need multiple hires before you have the same breadth.

The question is whether your advertising operation actually requires that breadth.

If you spend £5,000 per month entirely on Google Search, it might not. If you spend £100,000 per month across Search, Performance Max, Shopping, Meta, LinkedIn and Microsoft Ads, it probably does.

Control and communication

This is where in-house teams usually win.

Your employee is there. They can speak to sales. They can sit in meetings. They can hear complaints about lead quality. They can understand operational problems quickly. They can change campaigns without waiting for an agency call.

That proximity has real value. An internal PPC specialist will usually develop deeper knowledge of:

• Your products
• Your margins
• Your sales process
• Your customers
• Your competitors
• Your internal politics
• Your commercial priorities

A good agency should work hard to understand those things. But it will never physically sit inside the business every day.

Where agencies go wrong

The weak agency model looks like this. Client sends request. Account manager forwards request. PPC specialist makes change. Account manager reports back.

Everything moves slowly. Nobody really understands the business. That is frustrating.

The best agency relationships feel much closer to an internal team:

• Direct communication
• Regular calls
• Access to the people actually managing the campaigns
• Commercial discussions rather than ticket systems

If you are using an agency, that is the standard you should expect.

Speed and scalability

This is one of the biggest practical differences.

Suppose your advertising spend grows from £20,000 per month to £80,000 per month. An agency can normally absorb that relatively quickly.

Internally, increased complexity may require:

• Another PPC specialist
• A designer
• Better tracking
• More reporting
• Additional management
• More software

Hiring takes time. Agencies are built around capacity. That makes them easier to scale up and down.

This matters particularly for:

• Fast-growing businesses
• Seasonal businesses
• Start-ups
• Multi-location businesses
• Companies entering new markets

An internal team becomes more attractive once the advertising operation is large and stable enough to justify permanent resources.

Technology and tools

Good PPC management involves more than Google Ads. Depending on the account, you may need:

• Call tracking
• CRM integration
• Heatmapping
• Competitive research
• Keyword research
• Feed management
• Reporting software
• Landing page tools
• Analytics
• Tag management

Agencies normally spread the cost of these systems across multiple clients. Internally, your business may need to pay for them directly.

This is not usually the deciding factor. But it contributes to the real cost difference.

More importantly, agencies tend to already know how to use those tools.

Buying software does not create expertise.

Accountability and commercial pressure

This one is interesting because both models have different forms of accountability.

An agency knows it can be replaced. If performance deteriorates badly enough, the client leaves. That creates commercial pressure.

An employee has different incentives. They are part of the company. That can create stronger ownership. But it can also reduce external challenge.

Sometimes an agency can say your landing page is the problem. Your offer is weak. Your sales team is failing to contact leads quickly enough. An employee may be less comfortable challenging another department.

The reverse is also true. Some agencies protect themselves. They blame the website. The market. The sales team. Anything except their own campaigns.

Neither organisational structure guarantees accountability. You need the right people.

When in-house PPC works better

There are situations where I would strongly consider building internally.

You spend enough to justify a dedicated team

If PPC is a huge part of your business and you are spending hundreds of thousands every month, internal capability starts becoming much easier to justify. If you want a sense of what that operation should look like at scale, we set it out in what a £50k per month paid media account should actually look like.

You may still use agencies for specialist support. But having internal ownership makes sense.

Your business is extremely complex

Some businesses take months to understand properly. Complex products. Complex regulation. Complex sales processes. Complex internal systems.

An internal marketer will naturally accumulate far more knowledge over time.

PPC needs constant interaction with other teams

If paid media needs daily coordination with:

• Sales
• Product
• Pricing
• Merchandising
• Creative
• Operations

then having someone internal can remove friction.

You can genuinely attract good PPC talent

This is important. Hiring someone internally only works if you can hire someone good.

The market has plenty of people who have used Google Ads. That is not the same thing as being good at PPC.

A mediocre internal hire does not become better simply because they sit in your office.

When a PPC agency works better

For many small and medium-sized businesses, agency economics are difficult to beat.

You need senior expertise without a senior salary

A good agency can give you access to experienced people for a fraction of what building an equivalent internal team would cost.

You advertise across multiple platforms

• Google
• Meta
• Microsoft
• LinkedIn

Each platform has its own complexities. One internal person may struggle to remain genuinely expert across all of them.

Your needs change

Perhaps this month you need PPC management. Next month tracking breaks. Then you need landing page advice. Then Meta creative becomes the problem.

An agency can move different resources into the account as needed.

You do not want recruitment risk

Finding good PPC people is difficult. Keeping them can also be difficult. An agency moves that employment risk away from your business.

Your advertising spend does not justify a team

This is probably the biggest reason. If you spend £20,000 per month on advertising, hiring three specialists makes very little financial sense.

An agency can effectively share those specialists across multiple businesses.

The hybrid model

There is another option that is often better than either extreme. Build internal marketing capability and use agencies for specialist execution, or bring in a PPC consultant alongside the internal team.

For example, you have an internal Head of Marketing. They own:

• Strategy
• Commercial priorities
• Brand
• Internal communication
• Budget

The PPC agency owns:

• Campaign strategy
• Campaign management
• Tracking
• Testing
• Reporting
• Technical execution

This can work extremely well. The internal person understands the business. The agency brings specialist expertise. Neither side is trying to do everything.

For larger organisations, this is often the strongest model.

The best agency relationships do not replace internal marketing. They extend it.

What about hiring one PPC manager and dropping the agency?

This is probably the most common scenario. The business grows. Agency fees increase. Someone says, for what we pay the agency, could we not just hire someone?

Sometimes yes. But ask what you are actually replacing.

If the agency currently handles:

• Google Ads
• Meta Ads
• Tracking
• Reporting
• Landing page feedback
• Creative guidance

then one £40,000 employee may not genuinely replace the agency.

You could simply move from several specialists working part-time to one generalist working full-time.

That might still be the right decision. But it is not automatically an upgrade.

A simple way to compare the two

Score your business against these factors.

The more boxes you tick on one side, the clearer the decision becomes.

Do not forget management

One of the most overlooked questions is who is going to manage the internal PPC person.

Hiring someone does not eliminate management. Someone needs to:

• Set targets
• Review performance
• Challenge strategy
• Develop the employee
• Approve budgets
• Evaluate whether the work is actually good

If nobody internally understands PPC well enough to manage the specialist, you create an awkward problem. The PPC manager becomes the person responsible for doing the work and judging whether the work is good.

An agency has internal peer review and senior specialists. That does not guarantee quality. But it creates additional layers of expertise.

Agency does not mean less control

Businesses sometimes assume using an agency means surrendering control of the account. It should not.

Your business should own:

• Google Ads account
• Meta Business Manager
• Analytics
• Tracking infrastructure
• Creative assets
• Data

The agency should have access. Not ownership.

If you are not sure which applies to you, Google's documentation on access levels in your Google Ads account explains how to check who currently holds admin access and how to change it. It takes about two minutes to look.

You should also understand the overall strategy. You do not need to know every bid adjustment. But you should understand where the money is going and why.

If ending the agency relationship would mean losing your advertising accounts or historical data, the relationship has been structured badly.

How to decide

I would ask five questions.

1. How much are you spending?

The larger your advertising operation becomes, the easier internal hires are to justify.

2. How complex is the account?

One platform and one market is very different from managing five platforms across several countries.

3. How many skills do you need?

If you need Google Ads, Meta, tracking, CRO and creative support, calculate the cost of replacing all of those skills. Not just the PPC manager.

4. How important is daily business context?

If success depends heavily on internal information moving quickly, an internal specialist gains an advantage.

5. Can you actually hire someone better than the agency?

This is the question that matters most.

Do not move PPC internally because internal sounds cheaper. Move it internally because you believe you can build a stronger advertising function.

Conclusion

There is no inherent reason an agency should outperform an in-house PPC team. And there is no inherent reason an internal team should outperform an agency.

Both models can be excellent. Both models can be terrible.

Agencies tend to win on expertise, flexibility, scalability and breadth of resource.

Internal teams tend to win on control, business knowledge, availability and integration.

For smaller and mid-sized businesses, hiring an entire specialist paid media function internally is often difficult to justify. For larger businesses where PPC is central to growth, building internal capability becomes increasingly attractive.

And for many companies, the answer is somewhere in the middle. An internal marketing team that understands the business, supported by an agency that understands paid media.

That combination can be difficult to beat.

Not sure whether you should keep your PPC agency or build internally?

We can review your current advertising setup, spend and internal resources and give you a practical view on what makes the most sense. If an internal team would suit you better, we will tell you.

Book a free PPC consultation See our PPC management services

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