ECWEBUK
No. 005 / Shopify PlusCambridge · UK
✦ Shopify Plus development

Shopify Plus,
done right.

Migrations, B2B and wholesale, checkout extensions, Functions and Flow. Shopify Plus engineering from the founder doing the work, priced fixed before we start.

Why merchants pick EC Web for Shopify Plus

Shopify Partner
2017
Founder-led
1
Pricing
Fixed
Post-launch
90d

★ What Plus unlocks

6 areas of work
01

Migrations to Plus

Move up from Advanced, or replatform from Magento, WooCommerce or a bespoke stack. No lost SEO, no lost data, a launch plan you can actually execute.

02

B2B & wholesale

Company accounts, customer-specific catalogues and price lists, net terms, quote requests and PO checkout, built on native Plus B2B rather than bolted-on apps.

03

Checkout extensions

Custom checkout UI: upsells, delivery logic, custom fields, trust content and validation, all on the Checkout Extensibility model, not scriptable checkout.

04

Shopify Functions

Discounts, delivery and payment customisation, cart transforms and validation, written as Functions so the logic runs server-side and survives theme changes.

05

Flow & automation

Order routing, fraud holds, tagging, inventory alerts and back-office automation wired through Flow and webhooks so the team stops doing it by hand.

06

Multi-store & markets

Expansion stores, Markets for international pricing and domains, and shared component libraries so a dozen storefronts don't become a dozen codebases.

§ When Plus is the right move

Honest signals
01
You've outgrown checkout

You need custom logic at checkout, and scriptable checkout or app hacks keep breaking. Plus gives you Checkout Extensibility and Functions.

02
B2B is a real line

Wholesale is more than a discount code. Company accounts, price lists and net terms are core to the business, not a bolt-on.

03
Volume & automation

High order volume, launches that spike, and back-office work that should be automated with Flow rather than done by a person at 2am.

04
Going international

Multiple markets, currencies and domains. Markets plus expansion stores beat running parallel stores that drift apart.

None of these you? Then Plus probably isn’t worth the jump yet, and I’ll say so on the call. Read the longer take in when it makes sense to move to Shopify Plus, or see how it stacks up against the standard plans in Shopify Plus vs standard Shopify.

₤ Plus engagements

Four ways to start
Readiness call
£0
Is Plus actually worth it for you?
  • 30 minutes, no pitch deck
  • Where the ROI is (and isn't)
  • A written recommendation after
  • Zero obligation
Migration
from£18k
Replatform or upgrade onto Plus.
  • Theme, checkout & integrations
  • SEO-safe URL & redirect plan
  • Data & customer migration
  • Fixed price, fixed scope
Plus build
from£25k
A store built around your commercial model.
  • B2B / wholesale or DTC
  • Checkout extensions & Functions
  • Flow automation
  • 90 days post-launch support
Support retainer
£2,200/ month
Ongoing Plus engineering.
  • Peak-season on-call cover
  • Quarterly performance review
  • Shared Slack + Linear board
  • Priority on emergency fixes
Indicative starting prices. Every engagement is scoped and fixed-priced in writing before any work begins. For the platform fee itself, see what Shopify Plus costs in the UK.

? Frequently asked

7 questions

What does Shopify Plus development actually include?

Everything that makes Plus different from standard Shopify: checkout extensions and Functions, native B2B and wholesale, Flow automation, Markets for international selling, expansion stores and multi-store setups, and the migration or replatform work to get there. I build on the current Checkout Extensibility model, not the deprecated checkout.liquid.

Do you handle the migration to Shopify Plus?

Yes. Whether you're moving up from Shopify Advanced or replatforming from Magento, WooCommerce, BigCommerce or a custom stack, I plan the migration end to end: theme, checkout, integrations, a URL and redirect map so you keep your rankings, and customer and order data. It's quoted as a fixed-price project from £18,000.

Is Shopify Plus worth the cost for my store?

Not always, and I'll tell you if it isn't. Plus starts from £1,800/month, so it earns its place when you need checkout customisation, serious B2B, high volume with automation, or multi-market selling. If you just need a faster, better-built standard store, spending that money on the store itself is often the smarter call. That's what the free readiness call is for.

Are you a Shopify Plus Partner?

I'm a Shopify Partner and have been since 2017, and I build on Plus regularly. I'm a founder-led studio, not a 50-person agency, so you get the person doing the work rather than an account manager relaying messages. For very large programmes that need a big team, I'll say so and point you in the right direction.

Can you build B2B and wholesale on Plus?

Yes, and it's some of my favourite work. Company accounts and contacts, customer-specific catalogues and price lists, volume and tiered pricing, quote requests, net terms and PO checkout, all on native Plus B2B. My Forge theme is built around exactly this.

How long does a Plus build or migration take?

A focused migration is typically 6 to 10 weeks. A full Plus build around a custom commercial model is usually 10 to 16 weeks. You get a fixed scope and a fixed price before we start, plus a shared Linear board so you can see progress and priorities the whole way through.

What happens after launch?

Every build includes 90 days of post-launch support. After that, most stores move onto a Plus support retainer for ongoing engineering, peak-season on-call cover and quarterly performance reviews. No lock-in: you own all the code and can leave with 30 days notice.

→ Start

Ready for Plus?

Tell me where the store is today and where it needs to go. I’ll come back with an honest read on whether Plus is the answer, a scope, and a fixed price. No slides.

Reply window
< 24h
Weekdays, from one real human.
Taking on new Plus work.