Resources / Business
How Much Does an E-commerce Website Cost to Build?
By Mohammad Javad Samadi·14 March 2026·6 min read
If you sell online, or you're about to, one question tends to come before all the others: how much does an e-commerce website cost to build? The honest answer is that it depends, but not in the vague, hand-waving way agencies often mean it. The price is driven by a handful of specific choices, and once you understand them you can tell a fair quote from an inflated one.
This guide gives you realistic UK ranges, explains what actually moves the number, and shows where a small business can spend sensibly. No jargon, no scare tactics, just figures and the reasoning behind them.
What you're actually paying for
An online shop is far more than a few product pages. When you pay for one, you're paying for design, the store setup, secure payments, and the quiet plumbing that keeps orders flowing without you noticing. Skimp on the wrong part and it shows at the worst possible moment: the checkout.
Most e-commerce website design breaks down into a few core pieces, and it helps to see them laid out before you compare any quotes:
→Design and branding, so your shop looks trustworthy enough for someone to hand over their card details
→Store build, meaning product pages, categories, search and a basket that works properly on a phone
→Payments and tax, with card processing, VAT, delivery rules and refunds all set up correctly
→Content, which is your product photos, descriptions and the copy that does the actual selling
→Launch and testing, so orders, emails and stock levels all behave before you go live
How much does an e-commerce website cost to build in the UK?
As a rough guide, here is what the main routes tend to cost in 2026. Treat these as market ranges rather than quotes, because every shop is a little different and the figure moves with what you sell.
Where you land depends less on the price tag itself and more on what you're selling, and to how many people. A small shop with twenty products has very different needs to one juggling thousands of lines and daily stock updates.
→Doing it yourself on Shopify or Wix: around £20 to £60 a month for the platform, plus a good deal of your own time
→A freelancer using a template: roughly £800 to £2,500 for a straightforward shop
→A small studio building something tailored: roughly £2,500 to £10,000, depending on features
→A large agency or complex custom build: £10,000 and up
“A shop that pays for itself is a bargain at any of these figures. A cheap one that spooks people at checkout costs you every single day it's live.”
What pushes the price up (and what doesn't)
The biggest cost drivers are rarely the ones people worry about. A slightly fancier homepage is cheap. The things that genuinely add hours are less visible:
What doesn't need to cost the earth: solid SEO foundations, fast mobile pages and clean product listings. These are standard on any decent build, and they happen to be the parts that actually bring in traffic and turn browsers into buyers.
→The number of products, and whether they come in sizes, colours or other variations
→Custom features such as subscriptions, bookings, trade accounts or bespoke delivery pricing
→Integrations with stock systems, accounting software or a physical till
→One-off design work rather than a proven, tested layout
Where small businesses overspend
Plenty of owners pay for things they will never use. The classic mistakes are buying a huge platform built for hundreds of thousands of orders, commissioning custom design for pages a template would handle beautifully, and signing open-ended contracts where the bill quietly climbs by the hour.
The other silent cost is what happens after launch. A shop needs updating, backups and the occasional fix. A simple care plan at a fixed monthly rate is almost always cheaper than emergency call-outs when something breaks during a busy sale, and it saves you the stress of scrambling for help when you can least afford the downtime.
A fixed-price way to budget
We think you should know the full cost before you commit, which is why our prices are fixed rather than billed by the hour. A simple site starts at £477, our Growth build is £1,170, and our Complete build is £2,370, with care plans from £27 a month if you'd like us to look after it for you.
For most small online shops, that means a genuine, tested store without the open-ended agency bill. You can see all the fixed-price plans in one place, and every build includes a simple admin panel, 30 days of aftercare, and full ownership of your site, domain and data. Most go live in three to six weeks, and you deal with a small UK team directly the whole way through.
Key takeaways
- ✓E-commerce sites range from about £800 with a freelancer to £10,000 or more with a large agency.
- ✓Product count, custom features and integrations drive cost far more than how the site looks.
- ✓Fixed-price beats hourly billing when you need to budget with real confidence.
- ✓Our builds run from £477 to £2,370, with care plans from £27 a month and most shops live in three to six weeks.
Frequently asked questions
How much does an e-commerce website cost to build in the UK?
For a small business, a tested online shop typically costs somewhere between £800 with a freelancer and £10,000 or more with a large agency. Our fixed-price builds run from £477 for a simple site to £1,170 (Growth) and £2,370 (Complete), so you know the figure before you start rather than watching an hourly bill climb.
How long does it take to build an online shop?
Most of our sites go live in three to six weeks. The timeline depends mainly on how quickly you can get us your product details and photos. The build itself moves fast once we have what we need.
Do I have to pay a monthly fee to run an online shop?
You'll pay for hosting and your payment provider's transaction fees, which is normal for any shop. Beyond that, a monthly plan is optional. Our care plans start at £27 a month for updates, backups and support, but you own your site and can look after it yourself if you prefer.
Is Shopify cheaper than a custom-built site?
Shopify is cheaper to start, at around £20 to £60 a month, but you trade some control and pay ongoing fees and app costs that add up over time. A tailored build costs more upfront and gives you a site you fully own, with no per-app surprises. The right choice depends on how you plan to grow.
Can I start small and add features later?
Yes, and it's usually the smart move. Launch with a clean, fast shop that covers what you sell today, then add features like subscriptions or trade accounts once sales justify them. That way you avoid paying for things you may never use.
Mohammad Javad Samadi
Founder of Nexus Lab Systems. I design, build and rank websites for local service businesses across the UK — start to finish.
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