How Much Does an Ecommerce Site Cost?
A realistic, no-jargon breakdown of what an ecommerce website costs in the UK in 2026 — platform by platform across Shopify, WooCommerce and custom builds, plus what actually drives the price.
Definition
How Much Does an Ecommerce Site Cost? — A professionally built ecommerce website in the UK costs £2,000–£10,000 as a one-off in 2026, plus platform fees from roughly £25/month. A small Shopify store sits at the lower end (£2,000–£5,000), while custom WooCommerce or headless builds run £8,000–£25,000+ — with catalogue size, integrations and migrations driving the price far more than design alone.
Source: JW Digital
If you're planning to sell online, the honest answer to "what will an ecommerce website cost me?" is: roughly £2,000–£10,000 for a one-off build in 2026, plus platform fees from around £25/month — with the price driven by your catalogue, integrations and how much you need the store to do, not by the number of products on day one.
Here's the breakdown platform by platform, what genuinely moves that number, and the difference between a cheap template and a store built to convert and rank.
Ecommerce build cost by platform (UK, 2026)
| Platform | Build cost (one-off) | Monthly fees | Best for |
|---|---|---|---|
| DIY template (Shopify/Wix theme, self-built) | £0–£500 | £25–£40 | Testing an idea, tiny catalogue, you do the work |
| Shopify — small store | £2,000–£5,000 | £25–£100+ | Most SMEs; up to ~200 products, premium theme, apps |
| Shopify — large / Plus | £6,000–£20,000+ | £100–£2,000+ | High volume, custom checkout, heavy integrations |
| WooCommerce — standard | £2,500–£8,000 | £20–£80 (hosting + plugins) | Content-led brands, full ownership, WordPress shops |
| WooCommerce — complex | £8,000–£15,000+ | £50–£200 | Large catalogues, B2B pricing, custom logic |
| Custom / headless | £15,000–£40,000+ | £100–£1,000+ | Scale, performance, bespoke UX & ERP integration |
Monthly fees cover the platform, premium apps/plugins, hosting and payment-processor charges (typically ~1.5–2.9% + 20p per transaction). Larger one-off work — migrations, custom features — is quoted separately.
Shopify: the fastest route to live
Shopify is where most UK SMEs start, and for good reason — it's hosted, secure and quick to launch. The headline figures:
- Platform: from £25/month (Basic), £65 (Shopify), £344 (Advanced), then Shopify Plus from ~£2,000/month for enterprise.
- Theme: free themes exist, but premium themes run £150–£300 one-off; most serious stores want custom branding on top.
- Apps: reviews, subscriptions, upsells, advanced shipping — typically £50–£200/month combined once you're trading properly.
A professionally configured Shopify build — premium theme, custom branding, conversion-focused product pages and the right apps — generally lands at £2,000–£6,000. That's the sweet spot for most growing brands. See our Shopify development service for what's included.
WooCommerce: ownership and flexibility
WooCommerce (WordPress) has no platform fee — you own the whole stack. In exchange you pay for hosting, a developer and premium plugins, and you carry the maintenance yourself.
For a comparable store the build cost is usually similar to or higher than Shopify (£2,500–£8,000 for a standard shop), with lower monthly fees but more responsibility for updates, security and backups. It shines for content-led brands already on WordPress, and for shops needing bespoke pricing logic or B2B features without enterprise platform costs.
Custom & headless: bespoke software
At the top end you're commissioning bespoke software: a custom or headless build (a fast frontend decoupled from the commerce backend). These start around £15,000 and scale to £40,000+ because you're paying for engineering time — custom checkout flows, ERP/CRM integration, large-catalogue performance and complete design freedom. This is the territory of high-volume retailers and brands where milliseconds of load time and conversion rate move serious revenue. Our custom ecommerce development page covers when it's worth it.
The 4 things that actually drive the price
- Catalogue size & structure. Twenty products with simple options is a different job from 5,000 SKUs with variants, bundles and tiered pricing. Catalogue complexity — not just count — is the biggest single driver, because it shapes data structure, filtering and search.
- Integrations. A standalone shop is cheap; one wired into your accounting, inventory, ERP, email marketing and a 3PL warehouse is not. Each integration is engineering work and a point of ongoing maintenance.
- Design & conversion. A stock theme is fast and affordable. Custom branding, considered product pages, and CRO work (the difference between a 1% and a 2.5% conversion rate) cost more — and usually pay for themselves first.
- Migrations. Moving an existing store — products, customers, order history, and crucially your URLs and SEO — is skilled work. Done badly, a migration can wipe out rankings overnight, so it's never the place to cut corners.
Want a tailored figure for your own project? Our free ecommerce cost calculator gives a transparent estimate in a couple of minutes.
Why "cheap" usually costs more
There's a real difference between affordable and cheap. A £500 template store can work fine to test an idea — but the recurring pattern we see is a bargain build that loads slowly, doesn't rank, leaks sales at the checkout, and gets rebuilt within 18 months. The real cost was the £500 plus the rebuild plus a year of lost orders.
A store built to convert and rank is a different product: fast page loads, clean technical SEO so Google can index every product, structured data for rich results, a frictionless checkout, and tracking so you actually know what's working. A cheap template optimises for launching; a proper build optimises for selling. The build makes ranking possible — and a modest ongoing SEO investment is what turns a live shop into a steady source of orders.
What we'd recommend
For most UK SMEs starting out, a professionally built Shopify or WooCommerce store at £2,000–£6,000 is the right call — fast, conversion-focused and SEO-structured, with room to add apps and integrations as you grow. Save the custom/headless budget for when volume and complexity genuinely justify it.
JW Digital builds ecommerce websites that are made to sell, not just to exist. Start with the free ecommerce cost calculator for a transparent estimate, or tell us about your project for a tailored recommendation — we reply within 2 hours.
Frequently asked questions
How much does an ecommerce website cost in the UK in 2026?
For a professionally built store that converts and ranks, expect £2,000–£10,000 as a one-off, plus platform and app fees from around £25/month. A small Shopify shop sits at the lower end; custom WooCommerce or headless builds run £8,000–£25,000+.
How much does a Shopify website cost in the UK?
Shopify itself is from £25/month on the Basic plan. A professionally configured Shopify store — premium theme, custom branding, apps and conversion work — typically costs £2,000–£6,000 to build, plus ongoing app subscriptions and the platform fee.
Is WooCommerce cheaper than Shopify?
WooCommerce has no platform fee, but you pay for hosting, a developer and premium plugins. For a comparable store the build cost is usually similar or higher than Shopify, with lower monthly fees but more maintenance responsibility.
Why are custom ecommerce builds so much more expensive?
Custom and headless builds are bespoke software — bespoke checkout logic, ERP/CRM integrations, large catalogues and high-performance frontends. You're paying for engineering time, which is why they start around £8,000 and scale to £25,000+.
This article relates to our Custom eCommerce Development service. Need help applying it? Get in touch.