Shopify development services, from one fix to a full rebuild
EC Web is a Shopify development company in Cambridge. Our Shopify development services cover new themes, theme support, custom apps, migrations and Shopify Plus. Every project has a written scope and a fixed price, agreed before work starts.
- Pricing
- Fixed, agreed up front
- Typical project
- Three to six weeks
- Based in
- Cambridge, UK
- Apps on the App Store
- Four
Which Shopify development service do you need?
Start with what’s holding your store back. Each service has its own page with what’s included, prices, the process and FAQs.
Shopify theme development
Your store looks dated or is hard to edit
A new Online Store 2.0 theme or a redesign, with sections you can edit yourself. Custom themes from £12k, moves off an older theme from £6k.Shopify theme support
You need fixes and new sections every month
Pay-as-you-go at £125 an hour, or a retainer from £550 a month for regular changes and peak-season prep.Custom Shopify app development
No app does quite what you need
A private app for your store, or a public app for the App Store. Private apps from £8k, three to six weeks.Shopify ERP integration
You’re re-keying orders, stock or invoices
Shopify connected to your ERP, accounting or warehouse system. We’ll tell you if a connector app will do. Custom integrations from £8k.Shopify migration
You’re moving from Magento, WooCommerce or BigCommerce
Products, customers, orders and content moved across, with every old URL redirected. Starts with a free migration review.Shopify Plus development
You’ve outgrown Shopify or Advanced
B2B and wholesale, checkout changes, several stores or Shopify Flow. Migrations onto Plus from £18k, new Plus stores from £25k.Integrations and AI tools
Your systems don’t talk to each other
Shopify connected to your ERP, Klaviyo, GA4 or Xero, or AI tools that can read your store data safely. More below.
Custom Shopify development for integrations and AI
Some projects sit between the services above. These are the ones we’re asked for most, priced the same way as any other project.
Integrations and data
- Klaviyo, GA4, Meta Ads, Gorgias, Xero, Triple Whale and ERPs
- Syncs that run on a schedule or the moment something changes
- Every sync is logged, safe to retry and able to fill in past data
- Nightly reports that check the numbers match across your systems
- See it in practice: the Zalando and ERP integration for Will’s Vegan Store
AI tools for your store
- A secure connection that lets Claude, ChatGPT, Gemini or Perplexity read your store data (an MCP server)
- Read-only by default, with tight permissions and a log of every request
- Plain-English tools for operations, customer service and marketing
- See it in practice: a UK retailer’s store data joined up and connected to AI tools
Client work and the apps we run
Stores we’ve built and still look after, and four apps live on the Shopify App Store that we build and support ourselves.
Client work
Will’s Vegan Store
Four Shopify stores on one theme, international set-up, and Zalando and ERP orders brought into Shopify.Client work
A UK sewing and fabric retailer
A custom theme, fast filtered collection pages and an app that automates the back office.Our app: reporting and AI
Ask AI
Connects 20+ data sources to a built-in chat, or to Claude, ChatGPT, Gemini or Perplexity, so they can answer questions about your store.Our app: checkout
Packstation PLUS
Live DHL pickup-point search and Postnummer checks inside a German checkout.Our app: conversion
Behaviour Discount & Links
Ten behaviour triggers, abandoned-checkout recovery, magic links and QR codes. Rated 5.0.Our app: fulfilment
VPress Sync
Shopify orders sent to VPress production as soon as they’re placed.
How a project works
The same four steps for every service, with the price fixed at step two.
- 1
Discovery
Day 0A free 30-minute call, no slides. We get clear on the problem before talking about solutions. - 2
Written proposal
Days 1 to 3A fixed price, a timeline and a clear description of what ‘done’ looks like. - 3
Build
Weeks 1 to 6A demo video every week, a shared project board and direct Slack. Follow progress daily if you like. - 4
Launch and support
OngoingTested before launch, monitored afterwards and documented for your team. An optional retainer covers ongoing support.
What Shopify development costs
Every price is fixed and agreed before any work starts.
- Discovery call
- Free
- 30 minutes. No slides, no obligation.
- Small job
- From £1,500
- A new theme section, an app audit or one clearly defined fix, done in days.
- Typical project
- £8k to £25k
- Three to six weeks, fixed price, weekly demos. Migrations and Plus builds usually take 6 to 12 weeks.
- Larger project
- £25k+
- Several months, billed at each milestone as it’s delivered.
- Retainer
- From £550 a month
- Theme support, with app and Shopify Plus retainers from £2,000 a month.