Custom Ecommerce Development Company

Custom ecommerce development in the UK typically starts from around £1,200 for a focused build and rises with the complexity of your product logic, integrations and design. The biggest cost drivers are bespoke checkout and configurator logic, the number of third-party integrations (ERP, CRM, fulfilment), and performance requirements. JW Digital quotes transparent, fixed-scope pricing agreed before work begins — and unlike template platforms there are no forced monthly fees, so the total cost of ownership over two to three years is often comparable to or lower than a heavily-extended Shopify setup. Use our ecommerce cost calculator for an initial estimate.

A custom ecommerce website typically takes 4–8 weeks from kickoff to launch, depending on scope. A focused build with a standard catalogue and a few integrations sits at the lower end; larger projects with bespoke configurators, B2B pricing logic, or deep ERP and fulfilment integration take longer. We agree a clear milestone timeline during the discovery phase — discovery and architecture, UX design, development, QA, then launch — so you always know what is happening and when input is needed from your side.

Shopify is a hosted template platform — fast to launch and low-cost upfront, but you work within its structure, its checkout, its app ecosystem and its monthly fees. Custom ecommerce development builds the store around your requirements instead: a bespoke Next.js storefront, your own checkout and product logic, direct API integrations with any system, and full ownership of the codebase with no forced platform fees. Shopify is the right answer for standard retail; a custom build is right when your product logic, integrations or performance needs exceed what a template can reliably deliver. We will advise you honestly on which fits your business.

Yes — system integration is central to our custom ecommerce service. We build the API and data layer connecting your storefront to any platform with a public API: ERP systems, CRMs, warehouse and stock-management software, accounting tools, and third-party logistics or fulfilment providers. Our custom API and database integration expertise handles the underlying data architecture so stock levels, orders and customer records stay in sync automatically, removing manual data entry from your team's workload.

Yes. Every custom build is deployed to cloud infrastructure with monitoring, automated scaling, SSL and daily backups. After launch, ongoing hosting and maintenance for ecommerce sites, feature development, integration updates and technical support are available through our Ecommerce Maintenance & Support retainer — so the platform keeps performing and improving as your business grows.

We integrate any payment provider with a public API — including Stripe, PayPal, Klarna, Braintree and UK card processors. We implement 3D Secure authentication, express checkout options, buy-now-pay-later where relevant, and multi-currency support for stores selling internationally. Because the checkout is custom-built, you are never locked into one provider or charged platform transaction fees on top of the gateway's own rates.

It depends on the requirements rather than the size of the business. For a small business selling a standard catalogue, Shopify or WooCommerce is usually the better-value starting point and we will say so. Custom ecommerce development is worth it for a smaller business when it has genuinely bespoke needs from day one — a product configurator, an unusual pricing or subscription model, a critical ERP integration, or a B2B/wholesale side — where building it properly once is cheaper than years of plugin workarounds. We are happy to advise honestly on which route fits.

Yes. We handle full migrations from Shopify, WooCommerce or any existing platform — preserving product data, customer records and order history, and protecting your SEO rankings through careful redirect planning and structured data migration. We typically run both the old and new platforms in parallel during the transition so there is no downtime and no lost orders during the switch.

Headless ecommerce separates your storefront (the frontend customers see) from your commerce engine (the backend that processes orders). Instead of a tightly coupled template platform, a fast Next.js frontend calls APIs to retrieve product data, process orders and manage accounts — giving you complete control over performance, design and integrations, and the freedom to change any layer of the stack independently.

We build custom ecommerce frontends with Next.js and React — server-side rendering, edge performance and clean structured data for SEO. Backends use Node.js with PostgreSQL or similar, exposing REST or GraphQL APIs, and connect to headless CMS tools like Sanity, Strapi or Payload. Where a hybrid approach fits, we can run a headless frontend over a WooCommerce backend. The stack is chosen to fit your requirements, not the other way around.

Yes. Next.js with server-side rendering produces fast, fully crawlable pages with structured data built in, and you are not constrained by a platform's SEO limitations — every aspect of your URL structure, metadata, schema and page speed is under your control. This gives an ecommerce SEO campaign a much stronger technical foundation to build on after launch.