We design, build and grow Shopify and Shopify Plus stores for UK brands, from first launch to complex migrations, custom apps and integrations. You get a fast, conversion-focused store, an itemised GBP quote and full ownership of your theme code and custom apps.
- London-headquartered since 2019
- Shopify and Shopify Plus
- UK VAT and payments set up correctly
- You own your code
Why UK brands choose Shopify in 2026
Shopify takes care of hosting, security, PCI compliance and checkout, so your team can focus on products and customers rather than servers and plugin updates. Its checkout and Shop Pay make buying quick, especially on mobile, where most ecommerce traffic now comes from.
Compared with WooCommerce, Shopify needs far less maintenance. Compared with Magento (Adobe Commerce), it's usually quicker to build and cheaper to run. For most UK businesses, the real question isn't whether to use Shopify, but how well it's set up. That's where an experienced Shopify web development company makes the difference.
Still weighing up platforms? See our Magento development and WordPress and WooCommerce services.
Our Shopify development services
Everything you need to launch, run and scale a Shopify store, under one roof.
Store design
Conversion-focused layouts, product pages and navigation built around your brand and customers.
Custom theme development
Bespoke Online Store 2.0 themes, or premium themes tailored to your brand, built for speed.
Custom apps and integrations
Custom apps, Shopify Functions and integrations with ERP, CRM, PIM, stock and accounting systems.
Shopify Plus
High-volume, B2B, multi-store and international builds with Checkout Extensibility and Shopify Flow.
Migrations
Moving from WooCommerce, Magento, BigCommerce or custom platforms without losing data or rankings.
Headless Shopify
Custom front ends with Hydrogen or Next.js and the Storefront API for brands with advanced needs.
Shopify mobile apps
Native shopping apps connected to your Shopify store for iOS and Android.
Speed and conversion optimisation
Core Web Vitals improvements, app clean-ups and checkout and product page testing.
Maintenance and support
Ongoing updates, fixes, app management and improvements on a monthly retainer.
Shopify vs Shopify Plus: when to upgrade
Most stores start on a standard plan and stay there happily. Plus is worth considering when two or more of these apply.
| You need | Standard Shopify | Shopify Plus |
|---|---|---|
| High order volume and flash sales | Handles most stores well | Built for very high volume |
| Checkout customisation | Limited, mainly through apps | Checkout Extensibility and Shopify Functions |
| B2B and wholesale | Basic options and apps | Native B2B features |
| Multiple storefronts | Separate plans per store | Additional expansion stores included |
| Automation | Shopify Flow on most plans | Advanced automation and higher API limits |
Plan features change; check Shopify's current plan comparison. If standard Shopify is enough, we'll tell you.
Still using checkout.liquid or Shopify Scripts?
Shopify has replaced checkout.liquid and Shopify Scripts with Checkout Extensibility and Shopify Functions. Stores still relying on older checkout customisations risk losing discounts, shipping rules or checkout features.
We audit your current customisations, rebuild them using checkout UI extensions and Functions, and test everything before it goes live.
- Audit of checkout scripts, apps and customisations
- Discounts, shipping and payment rules rebuilt as Functions
- Checkout UI extensions for upsells, messages and fields
- Thank-you and order status pages upgraded
- Full testing before switching over
Our Shopify development process
Discovery
Products, customers, goals, scope and budget agreed.
Design
Wireframes and brand-led designs focused on conversion.
Build
Theme, features and apps built and reviewed in stages.
Integrate
Payments, shipping, ERP, CRM and marketing tools connected.
Test
Checkout, speed, accessibility and real-device testing.
Launch
Data migration, redirects and a monitored go-live.
Grow
Ongoing optimisation, support and new features.
Set up for selling in the UK
The details that make a UK store work smoothly from day one.
- PaymentsShopify Payments, PayPal, Apple Pay, Google Pay, Klarna and Clearpay.
- ShippingRoyal Mail, DPD, Evri and other couriers, with clear delivery options.
- VATUK VAT settings, tax-inclusive pricing and correct invoices.
- AccountingIntegrations with Xero, QuickBooks and Sage.
- Selling abroadShopify Markets for currencies, languages and duties.
- PrivacyUK GDPR-aware cookie consent and privacy settings.
Our Shopify tech stack
| Area | Technologies |
|---|---|
| Themes | Liquid, Online Store 2.0, sections and blocks, JavaScript, CSS |
| Apps and extensions | Shopify CLI, GraphQL Admin API, Shopify Functions, checkout UI extensions |
| Headless | Storefront API, Hydrogen, Next.js, React |
| Integrations | ERP, CRM, PIM, ESP and marketplace connections via APIs and middleware |
| Performance | Core Web Vitals tuning, image optimisation, app and script audits |
Shopify development pricing
Indicative UK ranges, excluding VAT, your Shopify plan and app subscriptions. Every project gets an itemised quote.
| Tier | Best for | Typical cost | Timeline |
|---|---|---|---|
| Starter | New stores using a customised premium theme | £3,000 – £8,000 | 3 – 5 weeks |
| Custom | Bespoke design and features | £8,000 – £20,000 | 6 – 12 weeks |
| Advanced | Large catalogues, custom apps, integrations | £20,000 – £50,000 | 3 – 5 months |
| Shopify Plus | High volume, B2B, multi-store | £50,000+ | 3 – 6 months |
Planning running costs too? Read Shopify maintenance costs in the UK and the cost to hire a Shopify expert.
Get a free Shopify store review
Already on Shopify? We'll review your speed, apps, theme and checkout and suggest the quickest wins for conversion.
Industries we build Shopify stores for
Fashion and accessories
Lookbooks, size guides, variants and fast collection pages.
Health and beauty
Subscriptions, bundles and ingredient-rich product pages.
Food and drink
Delivery slots, age checks and local delivery rules.
Home and interiors
Large images, swatches and furniture delivery options.
Jewellery
Premium product presentation and engraving or personalisation options.
B2B and wholesale
Trade pricing, quick ordering and account-based catalogues.
Why choose Fulminous Software for Shopify
Honest platform advice
Standard Shopify, Plus or headless, recommended for your needs and budget.
Transparent GBP pricing
Itemised proposals with VAT shown separately.
Built for speed
Lean themes and careful app choices for faster pages.
Design and development together
Designers, developers and app engineers in one team.
UK-hours collaboration
London-headquartered with project management during UK business hours.
You own your code
Custom themes and apps are yours, with no lock-in.
See our work in the portfolio, and drive traffic to your new store with our SEO services.
Shopify development FAQs
How much does a Shopify website cost in the UK?
As a guide, a starter store using a customised premium theme costs £3,000 to £8,000, a custom-designed store £8,000 to £20,000, an advanced store with complex integrations £20,000 to £50,000, and Shopify Plus or enterprise builds from £50,000. Prices exclude VAT and your Shopify subscription and app fees.
How long does it take to build a Shopify store?
A starter store usually takes 3 to 5 weeks, a custom store 6 to 12 weeks, an advanced store 3 to 5 months, and a Shopify Plus build 3 to 6 months, depending on design, apps, integrations and data migration.
Should I use Shopify or Shopify Plus?
Standard Shopify plans suit most growing stores. Shopify Plus makes sense when you need high order volumes and flash sales, B2B or wholesale, several storefronts, advanced checkout customisation or higher API limits and automation. If none of these apply, a standard plan is usually the better-value choice.
Can you migrate my store from WooCommerce or Magento to Shopify?
Yes. We migrate from WooCommerce, Magento, BigCommerce and custom platforms, moving products, customers and order history, and setting up 301 redirects so you keep your search rankings.
Do you build custom Shopify apps?
Yes. We build custom apps, checkout extensions and Shopify Functions, plus integrations with ERPs, CRMs, PIMs and other business systems using Shopify's APIs.
Is my store still using checkout.liquid or Shopify Scripts?
Shopify has moved checkout customisation to Checkout Extensibility and Shopify Functions, replacing checkout.liquid and Shopify Scripts. If your store still relies on older customisations, we can audit them and rebuild them using the supported approach.
Will my Shopify store be fast and mobile friendly?
Yes. We build mobile-first, optimise images, scripts and apps for Core Web Vitals, and test on real devices before launch.
Can you integrate UK payment and shipping providers?
Yes. We set up Shopify Payments, PayPal, Klarna, Clearpay and other payment options, along with UK couriers such as Royal Mail, DPD and Evri, and configure UK VAT settings correctly.
Is SEO included in a Shopify build?
Technical SEO is included: clean site structure, metadata, structured data, page speed and redirects during migrations. Ongoing content and link-building SEO is available as a separate service.
Do you build headless Shopify stores?
Yes. For brands that need a fully custom front end, we build headless stores using Shopify's Storefront API with Hydrogen or Next.js. For most stores, a well-built theme is faster to launch and easier to manage.
Will I own my store and code?
Yes. Your Shopify store sits in your own account, and you own the custom theme code and any custom apps we build for you.
Do you provide ongoing Shopify support?
Yes. Our maintenance and support retainers start from around £300 a month and cover updates, app management, monitoring, fixes and conversion improvements.
How do we get started?
Book a free consultation. We'll discuss your goals, budget and timeline, then send an itemised GBP proposal, usually within 48 hours.
Related Shopify services
Ready to build or grow your Shopify store?
Tell us about your products, goals and timeline. We'll send an itemised GBP proposal, usually within 48 hours.
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