Ecommerce Website Cost: UK Prices, Platforms and Trade-offs
A typical cost of an ecommerce website for a UK small business is £3,000 to £15,000 for a one-off custom or WordPress build, while hosted platforms can start from a few hundred pounds plus a monthly fee. The figure moves with product count, shipping rules, payment gateways and how much ongoing work you want to keep in-house. Below I break down real ranges, the main platforms and the trade-offs so you can budget without surprises.
What you are actually paying for
The cost for ecommerce website work is not just a homepage and a product grid. You pay for product data structure, stock logic, VAT and delivery rules, a checkout that does not leak customers, and the admin so you can add SKUs without calling a developer every week. A brochure site with a PayPal button is not the same job.
For a small UK catalogue (under 50 products, UK shipping only, Stripe or PayPal) a competent freelance or small studio build often lands between £3,000 and £8,000 one-off, plus hosting. Once you add variants, bundles, click-and-collect, marketplace feeds or multi-warehouse stock, £10,000 to £25,000 is common. Fully custom platforms with ERP links sit above that.
Platform routes and typical UK numbers
Most small firms choose one of three paths. Hosted SaaS (Shopify, Squarespace Commerce), self-hosted WordPress with WooCommerce, or a fully custom stack. Each has a different mix of setup cost, monthly cost and lock-in.
| Route | Typical setup (UK) | Ongoing | Best when |
|---|---|---|---|
| Shopify (or similar SaaS) | £500 - £4,000 theme and setup | From about £25 - £105/month plus card fees and apps | You want speed and little server work |
| WooCommerce on WordPress | £3,000 - £12,000 design and build | Hosting £15 - £60/month plus plugins and updates | You already use WordPress or need more control |
| Custom / headless | £15,000 - £50,000+ | Hosting, retainers, developer time | Complex catalogue or unique checkout |
SaaS monthly fees look cheap until you add paid apps for reviews, subscriptions, advanced shipping or wholesale. WooCommerce looks cheaper until you count security updates, backups and the hours spent when a plugin breaks after a PHP upgrade. Custom work is honest about labour but you own the maintenance forever.
Transaction fees and gateways
Stripe in the UK is typically around 1.5% + 20p for UK cards; PayPal is similar or higher. Shopify charges extra on some plans unless you use Shopify Payments. Those percentages matter more than the monthly platform fee once you pass a few thousand pounds of turnover. Factor them into the true cost of an ecommerce website, not just the build quote.
One-off build versus pay monthly
You can buy a finished site and host it yourself, or pay a setup fee then a monthly price that covers hosting, updates and ongoing management. I offer both routes for small businesses; the monthly option suits firms that cannot put several thousand pounds down at once and want the technical side genuinely hands-off. Exact plan figures are on arlowebstudio.com rather than here.
One-off is cleaner if you have the cash, a developer you trust for later changes, and someone in the business who will keep products, photos and policies current. Pay monthly spreads cost and usually includes the boring work (updates, SSL, backups). You pay more over three to five years, but you avoid a large capital hit and the risk of an abandoned, insecure shop.
What inflates the quote
- More than a few hundred SKUs, or messy data that needs cleaning before import.
- Multiple delivery zones, timed slots, or carrier APIs (DPD, Royal Mail, Evri) instead of simple flat rates.
- Subscriptions, deposits, or B2B price lists.
- Custom product configurators (fabric, engraving, made-to-measure).
- Marketplace sync (Amazon, eBay) or accounting links (Xero, Sage).
- Heavy photography, video, or 3D views you do not already own.
If a quote is far below the ranges above, check what is missing: GDPR cookie and privacy work, accessibility, mobile checkout testing, or training so you can run the shop yourself.
How to keep spend under control
- Write a one-page brief: product types, average order value, countries you ship to, payment methods, and who will update the catalogue.
- Clean your product data first (titles, VAT, weights). Importing a mess costs more than the design.
- Start with one payment gateway and simple shipping. Add complexity after you have orders.
- Use a proven theme or template and change layout, not the checkout flow, unless you have a strong reason.
- Budget 10 - 15% of the build each year for updates, plugin licences and small changes. Ecommerce sites rot faster than brochure sites.
A website with ecommerce cost is also time: photographing products, writing shipping and returns copy that matches Consumer Contracts Regulations, and testing checkout on a phone. That work is yours even if the build is cheap.
Redesign versus starting fresh
If you already sell online, moving platforms is often as expensive as a new build because of URL mapping, order history and customer accounts. A tidy WooCommerce or Shopify shop with outdated design can often be restyled for less than a full rebuild. Only switch if the current stack cannot do the job (stock, B2B, performance) or the licence and apps have become a tangle.
For most UK small businesses with a modest catalogue, a well-set Shopify or WooCommerce site in the £3,000 - £8,000 band, or a managed monthly plan, is enough. Spend extra only where it removes a real bottleneck: faster checkout, clearer delivery promises, or admin that your team will actually use.
Frequently asked questions
How much does a basic ecommerce website cost in the UK?
For a small catalogue, UK shipping and standard payments, expect roughly £3,000 to £8,000 for a one-off WordPress or similar build, or a few hundred pounds setup plus a monthly SaaS fee if you use Shopify-style hosting. Complex catalogues cost more.
Is Shopify cheaper than a custom ecommerce site?
Upfront, yes. Shopify setup can be under £4,000 and monthly from around £25, but apps and transaction fees add up. A custom or WooCommerce build costs more at the start and you handle hosting and updates, so compare three-year totals, not month one.
What ongoing costs should I budget besides the build?
Hosting or platform fees, SSL, plugin or app licences, payment gateway percentages, domain, email, and time or a retainer for updates and security. Plan 10 - 15% of the original build per year, plus card fees on every sale.
Can I start ecommerce on a small monthly budget?
Yes. Hosted platforms keep the upfront cost of an ecommerce website low. Some studios also run pay-monthly website plans with a setup fee then a monthly charge covering hosting and management, which suits firms without a large capital budget.
Why do quotes for the same shop vary so much?
Scope. One quote may include data import, shipping rules, training and accessibility; another may be a theme install and a PayPal button. Ask what is in and out, and who owns updates after launch.
Do I need a custom build to sell online in the UK?
No. Most small businesses are fine on Shopify or WooCommerce if the catalogue and shipping are straightforward. Custom work is for unusual products, heavy integrations or performance needs that templates cannot meet.