WordPress vs Squarespace vs custom: choosing the right platform

For most UK small businesses, Squarespace is the right choice if you want simplicity and speed to launch. WordPress is right if you want flexibility, cost control, and serious SEO capability, and are happy to manage it. A custom-built site (Next.js, Astro, or similar) is right when you need specific performance, integrations, or design that off-the-shelf platforms cannot deliver. Most small businesses should not build custom unless there is a clear reason for it.

Platform choice is one of those decisions where the wrong pick is not fatal, but it can cost you time and money for years. Below is an honest look at each, and how to decide. If budget is the bigger unknown for you, our guide to how much a small business website costs in the UK covers the tiers and what you get at each.

The quick answer by business type

Your business	Likely best platform
Local service (plumber, cafe, salon)	Squarespace or WordPress
Consultancy or agency	WordPress or Custom
E-commerce with under 100 products	Shopify (not covered here) or Squarespace Commerce
E-commerce with 100+ products	Shopify or WordPress + WooCommerce
Blog or content-heavy site	WordPress
Portfolio or creative work	Squarespace
Startup with unusual requirements	Custom
Regulated or complex organisation	Custom or WordPress

Now the detail.

Squarespace

Squarespace is an all-in-one platform. Hosting, templates, domain, security, and updates are handled for you. You pick a template, drag and drop content, publish. Costs run from about £13 a month for a basic plan to £40 for Commerce Advanced.

Strengths

Speed to launch. A competent non-designer can have a good-looking site up in a weekend.

Design quality out of the box. Squarespace templates are genuinely modern and cohesive. You have to try hard to make a Squarespace site look bad.

Nothing to maintain. No plugin updates, no security patches, no "your PHP version is out of date" emails. For a time-poor business owner, this is a big deal.

Decent built-in SEO. Page titles, meta descriptions, alt text, sitemaps, and schema all handled reasonably well.

Built-in analytics that are easier to read than Google Analytics for most people.

Weaknesses

Flexibility. Anything off the beaten track (unusual layouts, custom integrations, bespoke functionality) is either impossible or awkward via code injection.

SEO ceiling. Squarespace is fine for most small business SEO, but it cannot match a well-optimised WordPress site for content-heavy strategies. URL structures, schema control, and page speed have limits.

Portability. Moving a Squarespace site to another platform later is painful. You have to rebuild.

Cost at scale. £40 a month for Commerce Advanced is more than most managed WordPress hosting, and you have less control.

Best for

Solo consultants, local services, creative professionals, portfolios, small e-commerce stores, and anyone who values simplicity over flexibility. If your site is essentially a brochure with a contact form, Squarespace is excellent.

WordPress

WordPress powers roughly 40 percent of all websites globally. It is open source, free to use, and runs on hosting you provide. Total cost ranges from £5 a month for cheap shared hosting and a free theme to £50 a month for quality managed hosting and premium themes/plugins.

Important clarification: "WordPress" here means self-hosted WordPress (wordpress.org), not the commercial wordpress.com service, which is more restricted.

Strengths

Flexibility. Almost anything you can imagine is possible, either through the tens of thousands of plugins or through custom code. If you need to integrate with a specific booking system, CRM, accounting tool, or niche platform, WordPress almost certainly supports it.

SEO capability. With Yoast or Rank Math installed, and a well-built theme, WordPress is a serious SEO platform. Every URL structure, schema type, meta tag, and technical detail is under your control. If SEO is a major reason you are picking a platform, our plain English guide to SEO for small businesses walks through what actually moves the needle.

Content creation. The block editor is excellent for anyone who writes a lot. WordPress is still the best platform for content-driven businesses, blogs, news sites, and anyone publishing regularly. Pairing it with the approach in our small business content marketing guide is where the real compounding traffic comes from.

Portability. Your content lives in a database you own. You can migrate between hosts, or even export to other platforms with reasonable effort.

Cost control. A good WordPress site can run for £150 a year in hosting and domain, with no per-feature licensing.

Weaknesses

Maintenance. Plugins need updating. WordPress core needs updating. Occasionally an update breaks something. You either handle this yourself, pay someone to handle it, or let things rot.

Security. WordPress is a target because it is everywhere. Outdated plugins are the single most common cause of hacked small business sites. Good hosting and basic security practice sort this, but it is a real ongoing concern.

Complexity. WordPress has two decades of accumulated options, settings, and plugins. First-time users find the admin panel overwhelming. The learning curve is real.

Speed, if not done well. A bad WordPress site with a bloated theme and 30 plugins is slow. A good WordPress site on quality hosting is fast. The range is enormous, and speed is one of the main reasons small business websites lose customers.

Best for

Consultancies, agencies, professional services, content-heavy businesses, anyone with serious SEO ambitions, and businesses that expect to add functionality over time. If you will publish more than a few blog posts, WordPress is probably the right call.

Custom (Next.js, Astro, Remix, etc.)

"Custom" here means a site built with modern frameworks like Next.js, Astro, Remix, SvelteKit, or a JAMstack approach. The content might be managed through a headless CMS like Sanity, Contentful, or Payload. Hosting is usually on Vercel, Netlify, or Cloudflare Pages. The specific case for Cloudflare plus Next.js as the default small-business setup in 2026 is worth reading if you are leaning this way.

Development cost typically runs from £5,000 for a small custom build up to £30,000+ for larger projects.

Strengths

Performance. Custom sites can reliably hit 95+ PageSpeed scores without serious optimisation effort, because the underlying architecture is fast by default.

Design freedom. Nothing is off the shelf. Anything you can draw in Figma can be built.

Integration depth. Connecting to bespoke APIs, complex data sources, or specific business systems is significantly easier than with WordPress or Squarespace.

Security. Static sites have almost no attack surface. No database, no plugins, no admin panel to break into.

Scalability. A custom site on Vercel or Cloudflare handles spikes in traffic without breaking a sweat.

Weaknesses

Cost. Both to build and sometimes to change. Small content updates might require a developer, unless you have set up a proper CMS.

Time to launch. Typically two to four months for a proper custom build, compared to two to four weeks for Squarespace or a good WordPress project.

Reliance on developers. You cannot easily take a custom site to a new agency without someone inheriting unfamiliar code. Pick your developer carefully.

Overkill for brochure sites. If you are a local plumber, a custom Next.js site is almost certainly the wrong answer.

Best for

Businesses where website performance directly affects revenue. SaaS marketing sites. Technology companies whose site is part of their product's credibility. Publications that need speed and scale. Organisations with complex integration needs. Anything where you expect the site to grow into a proper product.

How to actually decide

Three questions cut through most of the noise.

First, how much will you update the site once it is live? If you expect to add blog posts or new pages monthly, you need a platform with a good editing experience. Squarespace, WordPress, and custom with a good CMS all work. A custom static site without a CMS does not.

Second, what integrations do you need? If you need to connect to a specific CRM, booking platform, or niche UK-specific tool, check whether Squarespace supports it natively. Usually it does not, which pushes you towards WordPress or custom.

Third, how important is the website to your revenue? If it is a core acquisition channel, invest in something you can grow. If it is a credibility check, get something clean and move on.

The worst platform is the one you pick because someone else uses it, or because you saw an advert. The right platform comes from thinking through your actual needs for the next two to three years.

A note on migration

All three platforms can be migrated between, but with different levels of pain. Squarespace to WordPress is doable but involves rebuilding most of the site. WordPress to Squarespace is painful because of the simpler structure. WordPress to custom and custom to WordPress are both doable with care, because the underlying content is usually accessible.

If you are not sure which platform to pick, consider starting on WordPress. It scales up and down, is easy to hire help for, and is rarely the wrong answer for a UK small business.

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If you want a quick honest assessment of which platform fits your specific business, try the free five-minute audit, or book a 15-minute call at https://cal.eu/voll.co.uk/15min and we can talk through your situation.