Certified Klaviyo Partner
Klaviyo Agency for Shopify Brands
A Klaviyo agency is a specialist email marketing team that sets up, manages, and optimises your Klaviyo account to maximise revenue. WebSpring is a certified Klaviyo agency for Shopify brands with 18 years of experience and 20M+ emails sent.
We take over your entire Klaviyo programme - flows, campaigns, segmentation, deliverability, and reporting - so you can focus on growing your brand.
Our Partners:
What we do
What does a Klaviyo agency do?
We handle every aspect of your Klaviyo account so it generates maximum revenue on autopilot. Here's what that looks like in practice.
Flow setup & optimisation
We build and optimise all core flows — welcome series, abandoned cart, post-purchase, win-back, browse abandonment, VIP, back-in-stock, and price drop. Each flow is custom-built for your store's customer journey.
Campaign management
Strategy, design, copy, and send. We plan your campaign calendar, segment your audiences, create on-brand emails, A/B test everything, and send campaigns that drive revenue — not just opens.
Email template design
Mobile-first, conversion-focused email templates that match your brand perfectly. We design modular templates you can reuse, plus custom designs for key campaigns and launches.
Segmentation & personalisation
We segment your list by engagement, purchase behaviour, lifecycle stage, and predicted value using Klaviyo's native tools. Every subscriber gets messaging matched to where they actually are.
Deliverability management
Domain authentication (DKIM, SPF, DMARC), sender reputation monitoring, list cleaning, sunset flows, and spam rate management. We make sure your emails reach the inbox.
Migration & onboarding
Switching to Klaviyo from Mailchimp, Omnisend, or another platform? We handle the entire migration — data, flows, templates, and a warm-up plan to protect your sender reputation.
Why Klaviyo
Why Shopify brands need a Klaviyo specialist
Klaviyo isn't just an email tool - it's the deepest ecommerce data platform available for Shopify. But most stores use less than 20% of what it can do.
Deep Shopify integration
Klaviyo syncs every product, order, customer, and browsing event from your Shopify store in real-time. This powers automations and segmentation that other platforms simply can't match.
Predictive analytics
Klaviyo's AI predicts customer lifetime value, churn risk, and next purchase date — letting you target the right people before they disengage.
Advanced segmentation
Build segments based on purchase frequency, average order value, browsing behaviour, email engagement, and predicted spending — not just basic demographics.
Revenue attribution
See exactly how much revenue each flow and campaign generates, down to the individual email. No guesswork, just data.
20M+
Emails sent via Klaviyo
At scale, without sacrificing deliverability.
£10M+
Revenue for clients
Proven systems that turn Klaviyo into a revenue engine.
40%
Average performance uplift
More opens, clicks, and sales — consistently.
90
Days to compounding results
Full programme impact in the first quarter.
Case study
Proven results, every time.
Revenue up 48.5% in 6 months. Every email earning more.
Flows
- The abandoned cart and checkout flows were leaving money on the table. We tightened the rules, optimised the timing and messaging across the add-to-cart and checkout abandonment flows, making sure the right subscribers entered at the right time and that the copy reflected their behaviour.
Campaigns
- The existing setup was sending the same message to everyone. We rebuilt the campaign strategy around how recently subscribers had engaged; splitting audiences into 30, 60, and 90-day windows, and separating customers from prospects entirely.
- Each segment got messaging that matched where they actually were within the purchase lifecycle: Customers received loyalty-led offers. Prospects were shown reasons to trust and buy. No more one-size-fits-all blasts.
Results
- Campaign revenue up +48.5% year on year across the first 6 months.
- RPR (Revenue Per Recipient) up +25.8%. Each email generating more revenue, not just more volume.
- Orders from campaigns up +50.2%.
- Email growth outperforms overall store revenue.
Comparison
Is hiring a Klaviyo agency worth It?
For most Shopify stores doing over £20,000 per month in revenue, hiring a Klaviyo agency is worth it — the revenue generated from optimised flows and campaigns almost always exceeds the agency fee.
Do it
yourself
Hire a
freelancer
WebSpring
Time investment
15–20 hrs/week
5–10 hrs/week managing
1–2 hrs/week oversight
Monthly cost
£0 (your time)
£500–£2,000/month
£1,000–£5,000/month
Speed to results
Slow — steep learning curve
Variable — depends on individual
Fast — proven frameworks
Best for
Very early-stage stores with no budget
Stores needing specific tasks done
Stores doing £20K+/month wanting growth
“Our previous emails looked outdated and under-performed. WebSpring redesigned everything, and now our campaigns feel on-brand and convert far better.”
Emily Carter
Brand Manager
“The automated workflows they created have completely transformed our customer journey.”
Aisha Haddad
Founder
“WebSpring rebuilt our entire email strategy from the ground up. Our open rates doubled within the first month, and revenue from email is now one of our strongest channels.”
Sarah Mitchell
Head of Marketing, Lumina Skincare
“The abandoned cart flow they built recovered more sales than we expected. Email is now a reliable revenue driver for us.”
Daniel Brooks
CEO
“The reporting and insights we receive each month are incredibly helpful. We’d never done email marketing properly until now. WebSpring gave us a scalable system that keeps growing our subscriber base and customer loyalty. Our campaigns feel premium and perform exceptionally well.”
Priya Shah
Marketing Lead
“The new segmentation strategy led to a massive improvement in click-through rates and repeat purchases.”
Javier Morales
E-Commerce Director,
“WebSpring handles everything — strategy, design, copy, testing. It’s like having a full email team without the overhead.”
Amira Singh
Operations Manager
“Our engagement had been declining for months. Their team helped us re-activate our list and bring thousands of dormant subscribers back. The level of detail they put into every email is unmatched.”
Michael Turner
Creative Director
“We saw a 40% uplift in conversions after implementing the new welcome sequence. That alone made the partnership worth it.”
Willam Farrow
Growth Manager,
FAQs
Frequently Asked Questions About Email Marketing
What is a Klaviyo agency?
We work with all major platforms including, Klaviyo, Omnisend & Brevo so you're covered no matter what you're using.
How much does a Klaviyo agency cost?
Klaviyo agency pricing typically ranges from £1,000 to £5,000 per month depending on list size, number of flows, campaign frequency, and level of service. One-off projects like a flow setup or account audit usually cost between £500 and £2,500. At WebSpring, we offer transparent retainer packages with no hidden fees, and most clients see a positive return within the first 60 days.
What Klaviyo flows should every Shopify store have?
Absolutely. Every email we build is fully responsive and tested across devices, screen sizes, before it ever hits an inbox.
How long does it take to set up Klaviyo properly?
We track the metrics that matter, open rates, click-through rates, conversions, and revenue per email and report back with clear, actionable insights.
Can you migrate my store from Mailchimp to Klaviyo?
Yes. We seamlessly connect your email platform with your CRM so your data stays synced and your automations run smoothly.
What results should I expect from Klaviyo?
Email marketing agencies typically charge between £1,000–£5,000 per month for ecommerce brands, depending on list size, campaign frequency, and the complexity of your flows. One-off Klaviyo setup or audit projects usually range from £500–£2,500. Stores with larger subscriber lists and advanced automation require more ongoing management and strategy.
Are you a certified Klaviyo partner?
For most Shopify stores doing over £20,000 per month, hiring an email marketing agency is usually worth it because the additional revenue often exceeds the agency fee. A strong agency improves flows, campaigns, segmentation, and deliverability while saving founders significant time. Many ecommerce brands see a 30–50% increase in email revenue within the first few months.