In shortEcommerce sites range from a few hundred pounds for DIY to five figures for bespoke. Here is what actually drives the cost, and what a small business genuinely needs to spend.
Here is the honest answer most agencies will not lead with, because a range is harder to sell than a single shiny number: an ecommerce website in the UK can cost anywhere from a few hundred pounds to well over fifty thousand. A DIY Shopify or WooCommerce shop you build yourself sits at the bottom. A designed, done-for-you shop for a small business lands in the low thousands. Bespoke and enterprise builds, with custom integrations and bespoke checkout flows, climb into five figures and keep going. The honest truth is that the price is set almost entirely by what you ask the shop to do, not by the word "ecommerce" itself.
So instead of a fake quote, let us talk about what actually moves the number, and what you genuinely need versus what you will be sold.
What actually drives the cost of an ecommerce website?
Six things, roughly in order of impact.
Number of products. Twelve hand-made candles is a different build to four thousand products with variants, sizes, and stock syncing. More products means more data entry, more complex filtering, and more that can go wrong.
Payment and shipping complexity. A single product shipped flat-rate within the UK is simple. Multiple couriers, zoned shipping rates, click-and-collect, subscriptions, or international tax handling each add real build time.
Custom design. A tweaked off-the-shelf theme is cheap. A shop designed around your brand, with bespoke product pages and a checkout shaped to reduce drop-off, costs more because someone is actually designing it rather than installing it.
Integrations. Accounting software, an EPOS till system, a CRM, email marketing, a warehouse, or a stock management tool. Every system the shop has to talk to is another wire to connect and test.
Content and photography. This is the cost people forget and then regret skipping. Product photography, descriptions that actually sell, and proper category copy are the difference between a shop that converts and a catalogue nobody buys from.
Ongoing hosting and maintenance. A shop is never finished. It needs hosting, security updates, backups, and someone to fix things when a plugin breaks at 11pm on a Friday. Budget for this from day one.
Is it cheaper to use Shopify or WooCommerce?
This is the question I get most, and the honest answer is: it depends on how you trade.
Shopify charges a fixed monthly fee, and on most plans it takes a cut of every single sale unless you use Shopify Payments. It is genuinely easy to start with, and you never touch hosting. But that per-sale fee is a tax on your own success. The more you sell, the more Shopify earns from you, forever.
WooCommerce is free as software. You run it on WordPress, you pay for your own hosting, and crucially there is no platform cut on your sales. You own it outright. The trade-off is that you are responsible for hosting and updates, which is exactly why most businesses have someone like us handle that part.
For a shop doing real volume, dodging the transaction fee usually makes WooCommerce cheaper over the lifetime of the site. For someone who wants the absolute simplest hands-off setup and is happy to pay for it, Shopify can earn its fee. There is no universal winner, only the right fit for how you sell.
We made exactly this call for Andrews of Holmfirth, a greengrocer that has been a fixture in Holmfirth for fifty years. We built their shop on WooCommerce and Bricks, and chose WooCommerce over Shopify deliberately, to avoid the per-sale fees eating into a greengrocer's already tight margins and to keep full control of a brand voice fifty years in the making. The shop went live in ten working days and was taking orders in the first week. That is the point of getting the platform decision right early: it pays off every month afterwards.
What does a small business actually need to spend?
Here is the contrarian bit. Most small businesses get this wrong in one of two directions.
Some overspend, talked into a sprawling custom build with features they will never touch: a loyalty engine, an AI recommendation widget, a custom mobile app, multi-currency they do not need yet. It looks impressive in the pitch and gathers dust in production.
Others underspend on the things that actually sell, then wonder why the traffic does not convert. They skimp on photography, write product descriptions in ten rushed minutes, and pick a slow, bloated theme because it was free. The shop technically works. It just does not make anyone want to buy.
The sweet spot for most small businesses is unglamorous: a fast, mobile-first shop with a checkout people trust, product pages that answer the buyer's questions before they are asked, and photography that does the product justice, all on a platform you own. Get those right and you have spent your money where it earns its keep. That is a low-thousands investment, done properly. At Lucent that work carries a price fixed in pounds, so there is no hourly meter ticking and no surprise at the end.
If you are still working out whether you even need a shop, we wrote separately on do I need an online shop, and if it is the timeline you are weighing, here is how long an ecommerce build takes. It is also worth reading what a standard website costs if you are comparing a brochure site against a full shop, because the two are priced very differently.
What about ongoing costs?
The headline build price is only ever half the story, and a good agency tells you the other half before you sign, not after.
On Shopify, your ongoing baseline is the monthly subscription plus those transaction fees, then any paid apps you bolt on. On WooCommerce, it is hosting, your domain renewal, an SSL certificate (often included), and any premium plugins you rely on. On top of either, there is maintenance: keeping software current, taking backups, monitoring security, and fixing the inevitable. You can do that yourself if you are technical and have the time, or pay a retainer so it is someone else's 11pm problem.
None of this is a reason to be nervous. It is the cost of running a shop that takes real money from real customers safely. A physical shop has rent, lighting, and insurance. An online one has hosting, security, and upkeep. Plan for it and it is predictable. Ignore it and it becomes an emergency.
The short version
A UK ecommerce website costs what you make it cost. DIY at the bottom, a proper done-for-you small-business shop in the low thousands, bespoke far above that. The platform you pick changes your long-term bill more than most people realise, and the money you will most regret is the money you did not spend on conversion basics. Spend where it sells. Skip what a rep is pushing.
If you want a shop built around how you actually trade, on a platform you own, take a look at our ecommerce website design. And if you would rather just talk it through, book a free thirty-minute call. No pitch, no pressure, just an honest read on what your shop needs and what it should cost.
