Most email marketing agencies treat Klaviyo as a broadcast tool — send a campaign, watch the open rate, move on.
We treat it as a retention system. Store Surge runs email marketing exclusively for ecommerce brands doing £20K or more per month, built around lifetime value and repeat purchase rate, not open rates alone.
Our team has run paid media and lifecycle marketing inside ecommerce businesses doing £1M to £10M a year. We've seen what happens when email is bolted on as an afterthought to paid acquisition, and we've rebuilt the flows that were quietly leaking revenue. That operational background is why we build email programs around retention economics, not vanity metrics.
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An email marketing agency manages your ecommerce brand's email program end-to-end — flow strategy and build, campaign copywriting, list segmentation, deliverability management, and performance reporting tied to revenue, not just opens and clicks.
Store Surge's email marketing management starts from £400 per month, with volume-based discounts as you add platforms or scale. Exact pricing depends on list size, flow complexity, and campaign cadence — book a call for a tailored quote.
Flows are automated sequences triggered by behaviour — welcome series, abandoned cart, post-purchase — that run continuously in the background. Campaigns are one-off sends tied to a specific promotion, launch, or moment. Ecommerce brands need both, but flows typically do more of the compounding revenue work.
Klaviyo is the platform we work with most, since it's the standard for Shopify and WooCommerce brands at your scale — but the strategy behind flows, segmentation, and retention applies regardless of platform.
Email is the highest-leverage retention channel because you own the relationship directly, rather than renting attention from an ad platform's auction. Well-built flows and segmentation increase repeat purchase rate and lifetime value by re-engaging customers at the right moment, rather than relying on paid acquisition to replace churn.
Yes, exclusively. That focus means we're not relearning ecommerce fundamentals on every account; every flow, segment, and retention playbook has already been tested on stores like yours.
Email marketing for ecommerce is a different discipline than the B2B nurture sequences most "email marketing agencies" are built around. It isn't about staying top of mind over a six-month sales cycle — it's about capturing revenue at the exact moment behaviour signals intent: an abandoned cart, a browse session, a post-purchase window, a win-back trigger. Ecommerce accounts that get this right are usually doing three things differently:
They treat flows as the primary revenue driver, campaigns as the secondary layer. For most ecommerce brands we onboard, flows — welcome, abandoned cart, browse abandonment, post-purchase, win-back — already account for 30–40% of total email revenue before a single campaign goes out. Most accounts we audit have left Klaviyo's default flow copy untouched since setup.
If you're running email alongside Meta and Google, the three channels need to reinforce each other — a Meta prospecting campaign that isn't followed by a proper welcome flow is leaving revenue on the table.
See how we run Meta ads for ecommerceMost of the accounts we audit have the same handful of issues. If any of these sound familiar, the fix is usually faster than you'd expect:
- Default Klaviyo flow copy left unedited since setup
- No segmentation beyond "subscribed vs. unsubscribed"
- A campaign calendar with no flow-vs-campaign revenue split ever tracked
- Deliverability issues silently capping inbox placement
- Win-back and browse abandonment flows missing entirely
- No A/B testing on subject lines or send times
Full build and ongoing optimisation of your core revenue flows — welcome series, abandoned cart, browse abandonment, post-purchase, and win-back — built around your actual repeat purchase timeline, not Klaviyo's default templates.
Hand-written campaigns tied to a content calendar built around your product launches, promotions, and seasonality — not generic templates recycled across every client on the roster.
Segmentation built around purchase recency, frequency, and product category, feeding into retention systems designed to grow LTV and repeat purchase rate, not just open rate and click rate.
Ongoing deliverability monitoring, list hygiene, and sender reputation management — the unglamorous work that determines whether any of the above actually reaches the inbox.
Want the full-funnel view that includes performance marketing across email, Meta, and Google?
See our performance marketing approach →Customer retention is the real economics behind ecommerce email marketing. A modest improvement in repeat purchase rate compounds into a materially larger lifetime value per customer — and email is the highest-leverage channel for driving it, because it's the one channel where you already own the relationship instead of renting it from a platform's ad auction.
- We build around LTV and repeat purchase rate, not just open rate and click rate
- Win-back flows are treated as core infrastructure, not an afterthought added in month six
- Segmentation strategy is designed around retention economics from day one, not bolted on retroactively once a list has gone stale
We review your existing Klaviyo account (or build from zero if you're starting fresh), flow performance, segmentation strategy, and list health. The audit usually surfaces 3 to 5 quick wins we can implement in the first two weeks — most often flow copy or timing fixes.
Your core flows go live within 10 to 14 days of onboarding, rebuilt around your actual customer journey rather than default templates.
Monthly flow performance reviews, a quarterly segmentation refresh, and ongoing campaign calendar management as the account matures.
Scaled an elite cycling ecommerce brand from $10k to $200k/month using Meta, Google, TikTok, Klaviyo, SEO and site strategy for profitable growth.
View case studyScaled a sports tech brand across Google, Meta, Klaviyo and site upgrades, while driving B2B growth through product development, cold email and LinkedIn outreach.
View case studyIf you'd like a relevant case study in detail before booking a call, get in touch and we'll send one over.
Get in touch- Ecommerce-only focus — every account we run is Shopify or WooCommerce, doing £20K+ per month. No generalist client mix diluting attention or pulling us into a quarterly brand-awareness campaign for a fintech.
- Retention-first thinking — we're judged on repeat purchase rate and LTV, not just list growth or open rate.
- Full-funnel, not siloed — your email program is coordinated with Meta and Google, not run in isolation by a separate vendor.
- Transparent pricing — plans start from £400 per month, with tiered discounts as you scale platforms or spend. No obscured "book a call to find out" pricing games.
Written by Sam Park, Founder at Store Surge.
Sam Park has run lifecycle and email marketing for ecommerce brands across fashion, beauty, and home goods, with combined ad spend and email revenue managed in the eight figures.
Most engagements start with a focused discovery and audit — typically 2–4 weeks — before moving into a longer retained or project-based relationship. We don't do retainers for the sake of retainers.