E-commerce Website Development Company in London That Turns Browsers Into Buyers

E-commerce website development is the process of building an online store where customers can browse products or services, add items to a cart and complete purchases. It can include storefront design, product management, payment integration, order processing, shipping connections and other features needed to support online sales.

An e-commerce website development company plans, builds and maintains online stores based on a business's products, customers and operational needs. Services may include UX and UI design, platform setup, custom development, payment integration, product catalogue configuration, testing and launch support.

Our e-commerce website development services can include custom storefront development, shopping cart and checkout functionality, product catalogue setup, payment and shipping integrations, responsive design, platform customisation and technical SEO foundations. The scope depends on your business model and project requirements.

Prox Digital supports businesses looking for e-commerce website development in London and across the UK. We tailor our approach to each project's commercial goals, technical requirements and target audience. Project scope and delivery arrangements are discussed during the initial consultation.

The cost depends on your product range, design requirements, platform, custom features, payment methods, integrations and content migration needs. A small online shop with standard functionality will generally cost less than a large store with complex product variations, bespoke workflows or multiple integrations. A defined scope helps establish a realistic estimate. As a guide, our UK website cost guide shows a small store with fewer than 100 products typically costs £3,000–£8,000 to build, and mid-range stores with 100–500 products usually cost £8,000–£20,000. We confirm the scope and price after a free discovery call.

The right platform depends on your catalogue, sales model, technical requirements, budget and plans for growth. We consider the flexibility, management experience, integrations and maintenance needs of suitable platforms before recommending an approach for your online store. Common options include Shopify, WooCommerce and fully custom builds. Our guide to designing a Shopify website shows what a Shopify project involves.

Yes. We can develop a tailored online store when your business needs specialised functionality, custom user journeys or integrations beyond a standard setup. The recommended solution depends on the complexity of your requirements and whether custom development offers a clear advantage over an existing platform. For websites that need bespoke features beyond the store, see our custom website development service.

We design responsive shopping experiences that adapt to mobile, tablet and desktop screens. This includes reviewing navigation, product presentation, forms and checkout interactions so customers can browse and purchase across different devices.

Yes. We can integrate suitable payment gateways and shipping services based on your chosen platform, target markets and operational requirements. Integration options depend on provider availability, technical compatibility and any account or regional restrictions.

A well-built online store can support sales by improving product discovery, simplifying checkout, strengthening usability and making essential information easier to find. Results also depend on product-market fit, pricing, traffic quality, customer service and marketing, so development works best alongside a wider growth strategy. For paid campaigns, dedicated landing page development can help turn more ad clicks into sales.

Yes. We can assess an existing store and recommend targeted improvements or a more comprehensive rebuild. This may include updating the design, improving checkout, restructuring product pages, integrating new systems or addressing performance and usability issues.

The timeline depends on the store's size, product catalogue, design complexity, integrations and required functionality. A smaller store may take several weeks, while a more complex e-commerce project can take several months. Content readiness, approvals and third-party integrations can also affect delivery.

Migration may be possible depending on your current platform, data structure and access permissions. We assess which product information, categories, orders and customer records can be transferred, then plan the migration and testing process. Sensitive data and applicable privacy requirements must be handled appropriately. Our ecommerce website migration service covers the full move, including redirects and SEO checks.

SEO can help product and category pages become more discoverable through relevant search results. Important foundations include a logical site structure, useful product information, descriptive metadata, appropriate indexing controls and good performance. Ongoing visibility also depends on competition, content quality and broader authority signals.

Look for a company that understands both the technical side of online selling and the customer journey. Review relevant portfolio examples, ask about payment and shipping integrations, clarify platform ownership and ongoing support, and make sure the proposed solution fits your current requirements and future plans.

You get e-commerce design, development, SEO and paid growth from one team, so your store is built to be found and to convert, not just to look good. Every build is tested on mobile and desktop before launch, and we stay on to improve conversion and performance afterwards. See our work with product brands such as Invisilayer, Smart Sense and DM Foods.