How Should You Choose an E-Commerce PPC Agency?

Hiring a PPC agency is one of the highest-leverage decisions an online retailer makes. The right agency compounds your growth for years; the wrong one burns budget, corrupts your account data and costs you a year of momentum. The problem is that every agency sounds identical on a sales call. This guide gives you the evaluation criteria, the exact questions to ask, and the pricing landscape, so you can choose on evidence instead of charisma.

Start With the Non-Negotiables

1. E-commerce specialism, not just PPC experience

E-commerce PPC is its own discipline. Shopping campaigns, product feed optimisation, Performance Max, catalogue-scale product exclusions, seasonal bidding, none of this exists in lead-gen PPC. An agency whose portfolio is dentists and law firms will learn e-commerce on your budget. Ask what percentage of their client base is e-commerce, and look for case studies quoting revenue and ROAS, not leads and clicks.

2. Full account transparency

You own the ad accounts. You get admin access. You can see every campaign, every search term and every pound of spend, in the platform itself, whenever you like. This is the single fastest filter in the industry: agencies with nothing to hide don't hide anything. Anything less, dashboards, "proprietary accounts", filtered reports, is a structural red flag (we've written a full guide to agency red flags).

3. Honest commercial terms

Published pricing and rolling monthly agreements. An agency confident in its work doesn't need a 12-month lock-in to keep clients, and an agency that hides its fees until the third sales call is negotiating, not pricing.

The Questions That Separate Good From Average

Ask these on the sales call and listen for specificity:

• "What would you do in the first 30 days?", Good answer: audit tracking, verify conversion data, review feed quality, identify wasted spend. Bad answer: "immerse ourselves in your brand."
• "How do you handle product feeds?", Feed quality caps Shopping and PMax performance. If they don't have a feed process, they're not an e-commerce agency.
• "Who actually works on my account, and how many accounts do they manage?", You're buying hours of skilled attention. Fifty accounts per manager means you get an hour a week of it.
• "How will you report, and on what metrics?", You want revenue, ROAS, CPA and conversion value on a weekly cadence, verifiable in-platform.
• "When has an account of yours performed badly, and what did you do?", Every honest agency has an answer. Only dishonest ones don't.

Specialist vs Full-Service

Full-service agencies pitch convenience: one supplier for PPC, SEO, social and email. The trade-off is depth. Paid media platforms change monthly, and mastery requires full-time focus. A specialist lives in Google Ads and Meta Ads all day; a generalist's PPC person is often also the SEO person. For e-commerce brands whose revenue depends on paid performance, depth usually wins, we've broken down the trade-offs in our guide to full-service agencies.

What Should You Expect to Pay?

UK PPC management typically runs £800-£3,000+ per month depending on ad spend, catalogue size and scope. Below that range, be suspicious: quality PPC management is labour-intensive, and a £300/month service is either automated templates or an account manager spread across dozens of clients. Watch the pricing model too:

• Flat monthly fee, cleanest incentives; you know the cost, and the agency wins by performing.
• Percentage of ad spend, common, but it rewards the agency for spending more, not better.
• Performance-based, sounds aligned, but often drives short-term tactics that strip-mine brand terms and remarketing.

We charge flat fees and publish them: Google Ads management from £1,500/month, Meta Ads from £1,000/month, full details on our pricing page.

The Sensible First Step: An Audit

Don't sign anything on a sales deck. Any serious e-commerce PPC agency will audit your account first, tracking accuracy, wasted spend, structural issues, realistic opportunity. The audit tells you two things at once: what's wrong with your account, and how the agency actually thinks. If the audit is generic, the management will be too.

Ours is free and specific: book a free PPC audit and judge us on what we find, not what we promise. That's how the decision should work everywhere.

Frequently Asked Questions

How much does an e-commerce PPC agency cost in the UK?

Typically £800-£3,000+ per month depending on ad spend, catalogue size and scope. Social Surge charges flat published fees: Google Ads management from £1,500/month and Meta Ads from £1,000/month, on rolling monthly agreements.

Should I choose a PPC specialist or a full-service agency?

If paid media drives your revenue, a specialist usually wins. Platforms change monthly and mastery needs full-time focus; generalist agencies spread the same people across PPC, SEO, social and email. Specialists also tend to publish harder, more verifiable results.

What should a PPC agency do in the first 30 days?

Audit and fix conversion tracking, review product feed quality, identify wasted spend, and restructure campaigns where needed. Foundations come before scaling, an agency that starts by increasing budgets is optimising its own fee, not your account.

What's the minimum ad spend to justify hiring a PPC agency?

There's no universal number, but management fees should be small relative to spend. As a rough rule, from around £3,000-£5,000/month in ad spend, professional management typically pays for itself through waste reduction and better bidding alone.