If you're running a UK business and about to build a website, you'll hit the same fork in the road nearly everyone does: do you drag-and-drop something together on Wix or Squarespace over a weekend, or pay an agency to build it properly? The honest answer is that both can be the right choice — it depends entirely on what the site has to do for you. Anyone who tells you a website builder is always a false economy, or that agencies are always overpriced, is selling you something. Here's how to work out which side of the line your business actually sits on.

What website builders are genuinely good at

Let's be fair to Wix and Squarespace, because they're good tools. If you need a presentable website live this week, on a tight budget, without waiting on anyone, a builder is hard to beat. Squarespace in particular produces genuinely handsome templates, and for a photographer, a personal trainer, a new café or a side project that mainly needs to exist and look tidy, that's often all you need.

The pricing is honest and predictable too — roughly £13 to £38 a month depending on the plan, which is around £150 to £450 a year including hosting. You get a visual editor, decent stock templates, hosting, SSL and updates bundled in, and you don't have to think about the plumbing. For a lot of businesses, especially in the first year or two, that's a perfectly sensible starting point, and we'll happily tell a prospect that to their face rather than sell them something they don't need yet.

Where builders start to cost you

The trouble is that "cheap and quick" and "the thing that grows your business" aren't the same job, and the gap shows up in a few predictable places.

  • Search performance. This is the big one. Builders tend to generate heavy, generic code that loads slowly, and slow sites both rank worse and convert worse. Industry analyses have repeatedly found that only a small fraction of Wix sites pull meaningful organic search traffic compared to sites built on more open platforms. If you need to be found — not just seen by people you send there — a builder is fighting you.
  • You're renting, not owning. Your site lives inside a closed system. If you ever want to move it, there's no clean "export everything" button — you're often rebuilding from scratch. That lock-in is fine until the day you outgrow it, and then it's expensive.
  • Ceilings on customisation. Custom booking logic, a bespoke checkout, an integration with your CRM or stock system, anything genuinely unusual — you'll hit a wall where the builder simply won't do it, and the workaround is clunky.
  • The "close enough" tax. Templates mean your site looks like everyone else's, and small compromises pile up. On a lead-generating site, a slightly worse layout that converts 1% fewer visitors quietly costs far more than the monthly fee ever saved you.

What you're actually paying an agency for

A good agency isn't selling you prettier pixels. You're paying for a site that's built to be found and built to convert — the two things a template can't guarantee. That means fast, server-rendered code that search engines can read cleanly (the foundation of everything we do in web design and web development), a structure planned around the terms your customers actually search for rather than a template's idea of a homepage, and a design shaped around your business instead of the other way round.

Crucially, that SEO and speed work is baked in from the first line of code, not bolted on afterwards. A site that's technically sound from day one is enormously cheaper to rank than one you have to unpick later — which is really the heart of what technical SEO is about. It's also yours: your code, your hosting, your data, free to move and extend whenever you like.

The real question isn't "builder or agency?" It's "is this website a nice-to-have, or is it supposed to bring in customers?" Answer that honestly and the choice usually makes itself.

The numbers, honestly

A custom agency site is a bigger upfront number — a professional small-business build in the UK typically runs from a few thousand pounds into five figures depending on scope, versus a few hundred a year for a builder. On a straight sticker-price comparison, the builder wins every time. But that's the wrong comparison, because it ignores what the site earns.

If your website is genuinely just a digital business card — hours, a phone number, a bit of reassurance — spending five figures on it would be daft, and we'd say so. But if it's meant to generate leads or sales, the maths changes completely. A site that ranks and converts can return its build cost several times over in a single year, while the "cheap" option that nobody finds costs you every enquiry it never captured. The right way to weigh it up is total cost of ownership against what the site brings in, which we break down properly in our guide to how much a website really costs in the UK.

A simple way to decide

Skip the brand loyalty and answer three questions. First, does this site need to rank in Google? If organic search is how you'll win customers, a builder will hold you back and you want it built properly. Second, how custom are your requirements? Standard brochure site, a builder may well cope; bespoke functionality or e-commerce with real ambitions, and you'll want a proper build — which is exactly the trade-off we lay out in how to choose a web design agency. Third, what's your time worth? The hours you'll spend wrestling a template are rarely free.

There's no shame in starting on Squarespace and moving to a custom build once the business justifies it — plenty of our clients did exactly that, and the timing was right for them. The mistake is pouring years of effort into a platform that was never going to take you where you're heading. If you're not sure which camp you're in, tell us what the site needs to do and we'll give you a straight answer, even if that answer is "stick with the builder for now."