Get an instant cost estimate for your ecommerce project — Shopify, WooCommerce, headless or fully custom. Select your platform, features and timeline to see a realistic UK pricing range in under two minutes.
The foundation of your ecommerce build — each platform has a different cost profile and use case.
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Ecommerce website costs in the UK vary enormously — from £2,500 for a basic template-based Shopify or WooCommerce store to upwards of £80,000 for a custom marketplace or enterprise platform. Understanding what drives cost is the first step to budgeting accurately.
For most SME ecommerce projects, the realistic mid-range sits between £6,000 and £30,000 for a build that includes bespoke design, core store functionality, product configuration, payment gateway integration and launch-ready SEO. Projects with complex requirements — multiple integrations, wholesale portals, subscription billing or high catalogue volumes — will typically sit in the £25,000 to £60,000 range.
The platform you choose has the single biggest impact on base cost. Shopify and WooCommerce are established platforms with existing infrastructure, which means less engineering time and lower starting prices. Headless architectures and fully custom builds require significantly more engineering effort but offer greater flexibility and performance.
Seven factors have the most significant impact on your final ecommerce development cost. Understanding each one helps you make informed trade-offs between features and budget.
Shopify and WooCommerce have significant existing infrastructure, lowering engineering hours. Headless and custom builds require more time to architect and build from scratch, increasing cost significantly.
Larger catalogues require more category architecture, filtering logic, data migration and configuration time. An enterprise catalogue of 1,000+ products is substantially more complex to structure than a 25-product launch store.
Template customisation is the cheapest option. Fully bespoke design — with UX discovery, wireframes, component library and motion — can add £5,000 to £25,000. Premium CRO-focused design with A/B testing infrastructure sits at the top of the range.
Each feature adds build time. Subscription billing, ERP integrations, loyalty systems, product configurators, multi-currency and B2B trade portals are the highest-cost items. Even simpler features like wishlists and reviews have a cost.
Technical SEO, schema markup, GA4 event tracking, Google Shopping feed setup and Meta Ads integration are best done during the build, not retrofitted. These typically add £2,000 to £12,000 depending on scope.
Urgent delivery requires more concurrent resource — developers working in parallel rather than sequence. ASAP timelines typically add 35% to build cost. Flexible timelines allow phased delivery and can reduce cost by up to 5%.
Monthly costs vary by platform. Shopify charges £39–£399/mo for the platform. WooCommerce hosting starts from £15/mo. Managed support, ongoing SEO and security monitoring add to this — but protect your investment and site performance long-term.
Platform choice is the most consequential decision in any ecommerce project. Here's how the main options compare on cost, flexibility and operational complexity.
| Platform | Build cost | Monthly costs | Best for | Flexibility |
|---|---|---|---|---|
| Shopify | £3,000 – £35,000 | £39 – £399/mo | Fast launch, low ops overhead, app ecosystem | Medium |
| WooCommerce | £2,500 – £20,000 | £15 – £100/mo | WordPress integration, full code access | High |
| Headless | £12,000 – £45,000 | £100 – £500/mo | Performance, design freedom, multi-channel | Very high |
| Custom Platform | £20,000 – £80,000+ | £200 – £1,000+/mo | Unique business logic, marketplace, enterprise | Complete |
Shopify is the fastest route to a managed, hosted ecommerce store. It handles infrastructure, PCI compliance and platform updates, reducing the operational burden on your team. The platform has a rich app ecosystem, but heavily customised Shopify stores can become complex to maintain. Best suited to DTC brands, multi-product retailers and businesses prioritising speed-to-market.
WooCommerce gives you full control at code level and avoids monthly platform fees. It integrates naturally with WordPress for content-heavy ecommerce. The trade-off is that you manage hosting, updates and plugin compatibility yourself — or pay for managed WooCommerce hosting. Best suited to WordPress-native businesses, content-led brands and those needing deep CMS integration.
Headless ecommerce decouples the frontend from the backend, typically using Next.js for the presentation layer and Shopify or a custom API as the commerce engine. This delivers superior performance, complete design freedom and excellent Core Web Vitals — but at a higher initial cost. Best suited to high-traffic brands, multi-channel sellers and businesses where design and performance are competitive differentiators.
Custom platforms are built from scratch to accommodate unique business logic — multi-vendor marketplaces, complex B2B workflows, non-standard catalogue structures or proprietary checkout flows. These require the most engineering time but offer complete flexibility and no dependency on third-party platforms.
A full ecommerce project from JW Digital covers every layer of the build — from architecture and design through to launch and post-go-live support.
Ecommerce website costs in the UK range from around £2,500 for a basic WooCommerce or Shopify build to £80,000 or more for a custom marketplace or enterprise platform. A standard mid-range Shopify or WooCommerce store with bespoke design and core features typically falls between £6,000 and £25,000.
Template-based Shopify builds typically cost £3,000 to £8,000. A semi-bespoke build with custom sections usually falls between £6,000 and £15,000. Fully bespoke Shopify with CRO-focused design and integrations can reach £15,000 to £35,000. This excludes the Shopify platform subscription of £39 to £399 per month.
Headless ecommerce connects a Next.js or similar frontend to a backend platform via API — giving complete design freedom and superior Core Web Vitals scores. Costs typically start from £12,000. It is best suited to high-traffic brands, multi-channel sellers, or businesses with complex design or content requirements that outgrow standard themes.
The biggest cost drivers are: platform choice (custom is significantly more than Shopify), store size, design level, the number of features and integrations selected, SEO setup, and timeline. Urgent delivery typically adds 15–35% to build cost.
A small Shopify or WooCommerce store typically takes 4 to 8 weeks. A medium store with custom design and integrations takes 8 to 16 weeks. Headless builds and custom platforms usually require 16 to 28 weeks depending on scope, content readiness and complexity.
No — it's an indicative range based on typical project variables. Your actual cost depends on specific requirements, API complexity, data migration scope and design detail. Use the calculator to understand budget ranges, then request a fixed-price proposal for your exact project.
Use the calculator above to get an instant estimate, then contact us for a detailed proposal scoped to your exact requirements. We respond to every enquiry within one working day.
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