How Much Does an E-commerce Website Cost in the UK?

Catalogue complexity matters more than product count alone

A store with many simple products can be easier to structure than a smaller catalogue with variants, bundles, technical specifications, subscriptions or compatibility rules. Product relationships affect navigation, filtering, search, templates and content entry.

Before comparing proposals, describe the real catalogue: categories, attributes, variants, pricing rules, stock ownership and the data source. A supplier spreadsheet and a clean platform export require different preparation.

• Categories and customer-facing attributes
• Variants, bundles and personalisation
• Stock, pricing and product-data ownership
• Search, filters and comparison requirements
• Restricted, subscription or account-based products

Storefront design is a system of customer decisions

A distinctive homepage is only one part of the work. Collection pages, filters, product details, basket behaviour, account journeys and mobile navigation must work together around real catalogue content.

Custom design scope increases when several product types need different templates or when brand storytelling must coexist with complex product discovery. Reusable sections can protect consistency while keeping the internal team able to merchandise the store.

Integrations and operational boundaries shape cost

Payments are only one connection. The store may depend on stock systems, fulfilment, shipping rules, accounting, email automation, reviews or customer service tools. Each integration needs ownership, error handling and realistic test conditions.

Clarify which platform or third party is the source of truth. A visually polished store will still fail operationally if stock, orders or customer communications cannot be managed reliably.

Migration carries data and SEO risk

An established store contains product URLs, collection pages, backlinks, customer data and order history. The migration plan should define what moves, what remains accessible, which URLs redirect and how critical journeys are tested.

Do not assume an automated import resolves content quality or search relationships. Images, variants, metadata, internal links and discontinued products often need explicit decisions.

Ask what is included before comparing quotes

A useful proposal identifies discovery, design, development, content responsibilities, product entry, integrations, migration, analytics, training, launch QA and post-launch support. It should also state platform fees, app costs and licences that sit outside the project fee.

Arkidis does not publish a fabricated universal starting price. A scoped proposal follows the catalogue, operational requirements and customer journey.

• Strategy and information architecture
• Responsive storefront and component design
• Product and collection template scope
• Integration and migration responsibilities
• Technical SEO, analytics and launch testing
• Handover, ownership and ongoing costs

Measure commercial journeys, not only traffic

Agree meaningful events before launch: product views, filter use, add-to-basket, checkout progress and completed orders. Review those signals alongside revenue, returns, margins and customer-service issues where the business can provide the data.

Design and technical quality improve the conditions for purchase, but they cannot guarantee sales. Product demand, pricing, fulfilment, marketing and customer trust remain part of the outcome.