Our published ecommerce work includes a five-plus year partnership with FoundPop, covering a website rebuild and Google and Meta acquisition, with a 10.3x average return on ad spend. For Chofa Jewelry, a Miami brand, we fixed the Shopify store before running Meta ads, then added TikTok. Since the engagement began in September 2025, Chofa has sold six figures at a 2.3x blended return on ad spend. In our experience, the plateau isn't a platform problem. It's a system problem. We take on ecommerce brands in the UK and the US, work across both countries’ time zones, and quote in GBP or USD.
What an Ecommerce Marketing Agency Actually Runs
An ecommerce marketing agency covers paid acquisition (Meta, Google, TikTok), retention (email and SMS lifecycle), and the content that feeds both, run as one accountable engine rather than three separate vendor relationships.
As we see it, most brands start with paid ads because that's the fastest lever to pull. It works, for a while. Then, in our experience, the account matures, the audience saturates, and the same spend buys fewer new customers at a worse price. From what we’ve seen, that's the point where a generalist agency tells you to increase budget. A stronger read is that acquisition was never meant to carry the whole business alone. The Social Target has worked with 600+ clients over nine years, 50+ active today, and we build the engine to run paid and retention together from day one, not bolted on after the plateau hits.
Why the Plateau Happens
From what we’ve seen, return on ad spend drops as an account matures because the growth plan leaned entirely on acquisition and never built a retention layer to catch the customers already won.
As we see it, an ad account that performs well at £5k a month often doesn't scale cleanly to £20k a month. The audience that converted easily gets exhausted first, creative can fatigue before replacements are ready, and the algorithm starts spending against a colder pool of people. This isn't a mystery or a platform conspiracy. It's the predictable shape of acquisition-only growth, and we've written about the mechanics of it in detail: why your ads stop scaling. The short version: a brand that only measures success in new-customer ROAS is measuring the wrong number once it's past the early stage.
Where the Leaks Actually Are
As we see it, most DTC funnels lose more revenue to abandoned checkouts, undermonetised email lists, and one-and-done customers than to weak ad creative alone; we check those areas before recommending more media spend.
Before we touch a media budget, we look at where the funnel is actually losing people. Checkout abandonment. An email list that only gets a broadcast when there's a sale on. Customers who buy once and never hear from the brand again. From what we’ve seen, these leaks are often cheaper to fix than the next ad campaign is to launch, and fixing them makes every pound of ad spend that follows work harder. We map this systematically. It's the same diagnostic we cover in common leaks in a DTC marketing funnel, and it's usually the first place we look, not the last.
The Fix Isn't More Spend
In our view, a brand that keeps a customer for a second and third order is worth more than one that wins a single sale at a high acquisition cost, and in our experience retention is the lever most ecommerce brands under-invest in.
A customer who orders twice doesn't have to be won from scratch the second time. In our experience, a customer who orders once and disappears often has to be replaced through fresh ad spend. Most ecommerce brands we meet have a functioning acquisition engine and a retention layer that's an afterthought: a welcome email, maybe a discount flow, nothing built around the actual reasons a customer would come back. We go deeper on why this matters in retention beats acquisition. We find the founders who fix this stop feeling like every month starts from zero.
What This Covers
- Paid acquisition: Meta, Google, TikTok, and YouTube, run as one media plan, not siloed platform experiments. Full detail on our paid media service.
- Retention and lifecycle: welcome sequences, post-purchase flows, win-back campaigns, and broadcast strategy that treats the existing list as a growth channel, not an afterthought. Full detail on our email marketing service.
- Shopify and store groundwork: getting the store ready for paid traffic before ads run, which is where the Chofa Jewelry engagement started. Full detail on design and build.
- Content that feeds both: creative built for the acquisition side and the retention side, so the two aren't competing for the same production budget.
- Reporting that names the leak, not just the win. A monthly review where we tell you what's working and what isn't, not a dashboard of vanity metrics.
This sits inside how we run marketing end to end. See our full digital marketing agency approach for the complete picture beyond ecommerce.
Who This Is For (and Who It Isn't)
This is built for a founder running an established DTC or ecommerce brand, past the early scrappy stage, with real revenue and a plateau they can feel but can't quite name. If your ad account was working and now isn't, if your email list gets touched once a month, or if the last agency you hired showed you a dashboard instead of a diagnosis, this is the fit. If you're pre-launch or pre-product-market-fit, this isn't the right engine yet: that's a different kind of problem, and we'd tell you honestly rather than take the retainer.
If that's you, tell us about your business and we'll tell you what we'd actually do.
Bottom Line
In our view, the plateau you're feeling isn't a sign you need to spend more; it's usually a sign the engine was only ever built to acquire, never to retain. Fix that, and in our experience the ad spend you're already putting in starts working harder without you adding a pound to the budget.
Tell us about your business and we'll tell you what we'd actually do. That's a short intake form, not a sales call; if it's a fit, the next step is a strategy call. Tell us about you on the contact page and we'll send a real quote within 48 hours.
For the other trades we serve, see our industries page.
↳ Frequently asked
01What does an ecommerce marketing agency in London actually do?
An ecommerce marketing agency runs paid acquisition, retention (email and SMS), and the content that supports both, as one connected system for a DTC or online retail brand, rather than as separate services managed by different vendors. We run this engine from London for scaling ecommerce brands.
02How is this different from hiring a PPC freelancer or an in-house marketer?
In our experience, a freelancer or single in-house hire usually owns one channel. This engine runs paid and retention together, with one team accountable for the whole number, which matters most once acquisition alone stops bringing new growth to an established ecommerce brand.
03Do you handle email and SMS retention, or only paid ads?
Both, run together. Paid acquisition and retention are treated as one engine here, not two separate services, because, in our experience, a brand that fixes retention gets more value out of every pound spent on acquisition. The scope depends on your store and objectives.
04Do you work with Shopify stores?
Yes. For Chofa Jewelry, we fixed the Shopify store before running any ads, then built Meta acquisition and added TikTok a few months later. The published case study describes both the store repairs and the advertising work that followed on both platforms.
05How much does an ecommerce marketing agency cost?
It depends on the scope, ad spend, and channels involved. We don't publish fixed prices here. Tell us about you on the contact page and we'll send a real quote within 48 hours.
06How long before an ecommerce brand sees results?
From what we’ve seen, retention fixes (email flows, lifecycle campaigns) often show movement within weeks, while paid media improvements from a funnel-leak fix compound over one to two full sales cycles, since it takes that long to see the effect on repeat-purchase rate.