Ecommerce Website Cost UK: Real Price Bands for 2026

This is the single cost guide on this site for UK buyers, so it is worth being blunt: UK agencies quote a very wide range for an online store, and most of that spread comes down to three things. How many products you sell, how much custom design you want, and whether the store is built for you or assembled on a hosted platform.

A small store with a tidy custom design, an owner dashboard, payment setup and around twenty products sits at the lower end. Larger catalogues, multiple product variations, shipping rules by region, and bespoke page design move the figure up from there.

The number people forget is the running cost. Hosted platforms charge every month, then add paid apps for reviews, discounts, or shipping rules. Over two or three years those monthly amounts often exceed the original build. A custom store built as a website you own leaves you with a yearly domain and hosting renewal instead.

Things that reliably add cost: a large catalogue with variations, product photography, content writing, migrating an existing store, multi currency, and complex delivery pricing. Things that keep cost down: having product data and images ready, agreeing scope in writing, and launching with your core range rather than everything at once.

For reference, EcomBuilder store builds start from PKR 19,999, or from GBP 150 for UK clients, with the final figure fixed in writing before work starts. Domain, hosting and dashboard training are part of the build, and there is no monthly platform subscription.

If you want the design side rather than the numbers, the article at /blog/ecommerce-website-design-uk-budget covers what changes visually and functionally between budget levels, and /ecommerce-web-design-agency-uk explains how the work runs for UK brands.