E-Commerce Development Agency

An online store built to sell, not just display.

We design and build e-commerce experiences on WooCommerce and Shopify that turn browsers into buyers — with optimised checkout flows, fast load times, and conversion-driven product pages. UK-wide, with a London e-commerce team for clients who want one nearby.

Conversion Rate 4.2%
Avg. Order Value +38%

E-commerce that's engineered for revenue.

We don't just build online stores — we build selling machines. Every product page, filter, checkout step, and post-purchase email is designed with one goal: maximising revenue per visitor.

WooCommerce & Shopify

Custom e-commerce builds on the platforms that power the majority of online retail. We choose the right platform based on your catalogue size, integrations, and growth plans.

Personalised Experience

Product recommendations, dynamic pricing, personalised email flows, and segmented promotions that make every customer feel like your only customer.

Results-Driven

Conversion rate optimisation, A/B tested checkout flows, and data-informed merchandising that systematically improves your store's commercial performance.

WooCommerce Development

WooCommerce stores that outperform the competition.

WooCommerce powers over 25% of all online stores because of its flexibility and the WordPress ecosystem behind it. We build custom WooCommerce solutions that go far beyond a standard theme installation — from bespoke product pages and checkout flows to complex subscription and membership systems.

  • Custom theme development optimised for e-commerce conversion
  • Advanced product configurations, bundles, and variable pricing
  • Subscription and membership systems with recurring billing
  • Multi-currency and multi-language for international selling
  • ERP, CRM, and accounting integrations (Xero, HubSpot, etc.)
Start Your WooCommerce Project
mystore.com/shop
Sale
Premium Hoodie£89 £59
Canvas Tote£34
New
Wireless Earbuds£129
Powered by WooCommerce
Shopify Development

Shopify stores built for scale.

Shopify is the backbone of modern e-commerce for a reason — reliability, speed, and a checkout experience that converts. We build custom Shopify themes and apps that give your brand a unique storefront while leveraging the platform's battle-tested infrastructure.

  • Custom Shopify theme development with Liquid templating
  • Shopify Plus development for high-volume and enterprise merchants
  • Custom Shopify apps for unique business requirements
  • Migration from WooCommerce, Magento, or custom platforms
  • Headless Shopify with Hydrogen/Oxygen or custom frontends
Start Your Shopify Project
myshop.myshopify.com
Organic Serum£42
Best Seller
Face Moisturiser£38
Night Cream£55
Shopify Storefront
Conversion Rate Optimisation

Turning more traffic into more transactions.

You don't always need more traffic — you need more from the traffic you already have. Our CRO process identifies and eliminates the friction points that stop visitors from buying, then systematically tests improvements until your conversion rate reaches its potential.

  • Checkout flow optimisation to reduce cart abandonment
  • Product page A/B testing for imagery, copy, and layout
  • Trust signal placement — reviews, guarantees, security badges
  • Upsell and cross-sell automation to increase average order value
  • Post-purchase email flows for retention and repeat buying
Cart Payment Confirm
4242 •••• •••• 4242
12/28
•••
Total£127.00
Visa Mastercard Apple Pay Klarna
10+
Stores Built
4.2%
Avg. Conversion Rate
38%
Avg. AOV Increase
65%
Cart Recovery Rate
99.99%
Client Satisfaction

From product catalogue to profitable store.

01
Discovery

Business model, product catalogue, integration requirements.

02
UX Design

Customer journey, product pages, checkout flow.

03
Build

Theme development, payment integration, shipping setup.

04
Content

Product photography, copywriting, SEO optimisation.

05
Launch

Testing, migration, go-live, monitoring.

06
Optimise

CRO testing, email automation, analytics review.

Choosing a Platform

Shopify, WooCommerce or custom?

This decision determines more about your next three years than any design choice, and it is usually made for the wrong reasons — because an agency only builds one of them, or because a competitor uses one.

Shopify is the right default for most retail. Hosting, PCI compliance, checkout and payment reliability are solved problems you never think about again. You pay for that in monthly fees, transaction costs and a checkout you cannot fully control. If you sell reasonably standard products to consumers, this is usually the answer and we will say so.

WooCommerce earns its place when the rules are unusual — trade pricing, complex tax or shipping logic, subscriptions, configurable products, or a catalogue that has to stay in step with an ERP. You own everything and can change anything, at the cost of being responsible for everything.

Custom is for when commerce is a feature of a larger product rather than the product itself: marketplaces, multi-vendor platforms, or businesses where the transaction is genuinely unusual. It is the most expensive route and the correct one surprisingly rarely.

We build all three. That is the only reason our recommendation is worth anything.

Platform fitWe build all three
NeedHostedSelf-hosted
Standard retailBestWorks
Trade & tiered pricingLimitedBest
Configurable productsLimitedBest
ERP as source of truthVia appsNative
Checkout controlFixedFull
You maintain itNoYes

What ecommerce builds actually cost.

Commerce budgets go on logic, not looks. Tax, shipping, inventory, payments and fulfilment are where the hours are.

Standard store — from £8,000

Custom design, a clean catalogue, standard payments and shipping. Suits most retailers who are not doing anything structurally unusual.

Complex commerce — £15,000+

Subscriptions, trade and tiered pricing, product configurators, multi-currency, or an ERP that must stay synchronised.

Platform migration — £45,000 ceiling

Our largest commerce engagements are replatforms. The work is rarely the storefront; it is data integrity, URL continuity and not losing rankings or orders mid-move.

Commerce projects fail in predictable places.

So the sequence is designed around the parts that actually go wrong — data, integrations and the failure paths nobody tests.

01
Discovery & data audit

Your catalogue, pricing rules, tax and shipping logic, and which system is the real source of truth. Usually the longest conversation and the most valuable.

02
Platform decision

Shopify, WooCommerce or custom, argued from your requirements. We build all three, so this is advice rather than a pitch.

03
Design

Category, product and checkout designed against real catalogue data — not three tidy sample products.

04
Build & integrate

Storefront, then the integrations. Stock, ERP and fulfilment connections built to alert someone when they break.

05
Migration & QA

Data moved, URLs mapped, redirects written, and the failure paths tested — declined cards, stock changing mid-checkout, double submits.

06
Launch & monitor

Deliberately outside a peak trading window, with monitoring on orders and revenue for the first fortnight.

Before You Commit

The questions that decide your budget.

Ecommerce quotes vary wildly between agencies for the same brief, and it is usually because the agencies are answering different questions. These are the ones that actually determine cost — worth having answers ready before you speak to anybody, including us.

You are probably a good fit if:

  • Who owns stock? If an ERP or warehouse system is the source of truth, the integration is the project and the storefront is the easy part.
  • How unusual is your pricing? Trade tiers, quantity breaks, contract pricing and regional variation each add real work.
  • How are products structured? Simple products are cheap. Configurable, made-to-order or dimension-priced products are not.
  • Where does fulfilment happen? Third-party logistics, dropshipping and multi-warehouse each carry their own integration and edge cases.
  • What is your peak? A store that must survive Black Friday needs different infrastructure from one with steady trade.

We are probably the wrong choice if:

  • You sell standard products to consumers with no unusual rules — Shopify will likely serve you better and cheaper, and we will say so.
  • You need the store live in three weeks. Commerce done properly does not compress well, and rushing it is how you launch a checkout that loses orders.
  • Nobody internally can own product data. Migrations stall on catalogue quality far more often than on code.

We would rather have this conversation at the enquiry stage than discover it in week six, when it is expensive for both of us.

What moves the quote
Business logic
Integrations
Data migration
Product structure
Page count
Page count is close to irrelevant.

Common questions about e-commerce development.

It depends on your needs. Shopify is best for straightforward product catalogues that need reliable hosting and a fast checkout. WooCommerce is better for complex requirements like custom product configurations, membership systems, or deep WordPress integration. We recommend the right platform during discovery based on your specific situation.
A custom e-commerce store typically starts from £8,000 for a focused Shopify or WooCommerce build and scales based on complexity. Stores with custom product configurators, subscriptions, multi-currency, or complex integrations usually range from £15,000–£45,000. We provide a detailed quote after understanding your requirements.
Yes — we regularly migrate stores from Magento, Squarespace, custom builds, and between WooCommerce and Shopify. We handle product data, customer accounts, order history, URL redirects, and SEO preservation. Our migration process is designed for zero downtime and zero lost rankings.
Absolutely. We integrate Stripe, PayPal, Apple Pay, Google Pay, Klarna, Clearpay, and other payment providers. We also handle multi-currency checkout, tax automation, and PCI compliance requirements. Your customers get a frictionless payment experience on every device.
Yes — our SEO and PPC teams work closely with e-commerce clients to drive qualified traffic. We also set up email marketing automation (abandoned cart recovery, post-purchase flows, win-back campaigns), product feed optimisation for Google Shopping, and social commerce integrations.
Yes. E-commerce stores need regular maintenance — security updates, performance monitoring, product updates, and seasonal promotions. Our maintenance plans cover everything from daily backups and uptime monitoring to new feature development and conversion optimisation.
It is the single biggest risk in a replatform, and it is manageable. Product and category URLs change shape between platforms, so every existing URL needs mapping to its new equivalent before launch, with 301s for anything that cannot be preserved. We also keep structured data, canonical tags and internal linking intact. Done carefully, a migration costs a short dip and recovers within weeks. Done carelessly, it costs a year.
Yes, and this is usually the part that determines the budget. We have connected stores to inventory systems, ERPs, fulfilment providers and accounting platforms. The important design decision is what happens when the integration fails — a sync that breaks silently will oversell stock for weeks before anyone notices, so we build them to fail loudly and alert someone.
We start with data rather than opinion: where people drop out of the funnel, what they search for and do not find, which products get viewed but not bought. The fixes are usually unglamorous — checkout friction, missing product information, slow category pages on mobile, unclear delivery cost. A redesign is occasionally the answer, but it is the most expensive first guess and rarely where the biggest gains are.
We integrate established providers — Stripe, PayPal, Shopify Payments, Klarna and similar — so card data never touches your server and PCI scope stays minimal. That is deliberate: handling card data directly is a liability almost no business our clients' size should take on.
Well supported, and a common reason to choose WooCommerce over Shopify. Customer-group pricing, quantity breaks, quote requests, credit terms, account-specific catalogues and tax-exempt handling are all straightforward to build when you own the platform, and awkward when you do not.
Ten to sixteen weeks for a standard store, four to six months where there are integrations, subscriptions or a migration involved. The pacing item is almost never development — it is product data. Catalogues arrive incomplete, images are inconsistent, and variant structures turn out to have exceptions nobody documented. Teams that assign someone to own product data at kickoff launch materially faster than those that treat it as a task for later.
After, always, and with a clear margin. Launching a new store into Black Friday or the run-up to Christmas means discovering your edge cases at the exact moment errors are most expensive. We plan launches for quiet weeks and keep the old store recoverable for a fortnight afterwards. If a deadline forces a peak launch, we will build it — but you should hear the risk stated plainly first.
Regularly, and it usually works well when responsibilities are explicit. We take the build and the technical layer; they keep strategy, campaigns and content. What causes friction is ambiguity over who owns the technical SEO decisions, so we agree that at the start — typically we implement and they direct. We are happy to join their reporting calls rather than run a parallel process.

Let's build your next growth engine.

Every great digital product starts with a conversation. Tell us what you're building — we'll show you how to get there faster. Free discovery call. No commitment.

JC BU MS
65+ projects delivered since 2012