The Three Questions That Answer the Decision

Before evaluating platforms, answer these questions honestly. They determine which option will actually serve your business rather than creating a technical support burden you did not budget for.

First: How frequently does your business change its own website content? If the answer is daily or weekly, you need a content management system that your staff can use without developer involvement for routine updates. If the answer is monthly or less, you could manage with developer-led updates and avoid the cost and complexity of a full CMS. The question is not whether you can update the site, but whether you can update it without friction and without paying someone each time.

Second: Do you have a developer or agency you trust who can maintain and update the site long-term? A custom CMS requires ongoing maintenance. WordPress requires ongoing maintenance. Wix requires none from a developer. If you have no reliable technical support and no budget to hire any, a managed platform like Wix may be the only realistic option regardless of its limitations. Platform choice and support availability must be decided together, not independently.

Third: What is the realistic total budget including ongoing costs, not just the initial build? A £3,000 WordPress site that requires £1,500 per year in developer maintenance and plugin subscriptions costs more over three years than a £6,000 custom CMS with £300 per year in hosting. Platform costs compound in ways that are not always obvious at the outset. Compare three-year totals, not first-year costs.

What a Custom CMS Gives You

A custom CMS is built specifically for your website. The code does exactly what your business needs and nothing else. For businesses with unusual content structures, complex workflows, or specific integration requirements, this specificity matters.

The advantages are real. Because the CMS is built for your specific workflow, your team works faster and with fewer errors than they would in a generic tool. A custom CMS can reflect your exact business logic, approval workflows, and content relationships in ways that WordPress and Wix cannot without significant customisation that becomes expensive to maintain.

Performance is predictable because you control every aspect of the technology stack. There is no plugin or theme code running that you do not know about. There is no vendor deciding to change their pricing or discontinue a feature you depend on. When you build with a custom approach, server configuration, database structure, and application logic all work together in a coherent system that you own outright.

The disadvantages are equally real. A custom CMS requires ongoing developer involvement for updates, security patches, and feature additions. If your developer disappears, you have a bespoke system that nobody else can maintain without spending significant time learning how it was built. Initial build costs are higher because every feature is built from scratch rather than assembled from existing components.

A custom CMS makes sense when your website has genuinely unusual requirements that cannot be met by standard platforms without extensive customisation, when you have a trusted developer available for ongoing maintenance, and when the long-term cost over three to five years is competitive with the alternatives despite the higher upfront investment. If you are weighing this against a WordPress build, it is worth reviewing a more detailed comparison of the two approaches before committing.

When WordPress Is the Right Choice

WordPress powers roughly 40% of the web for good reasons. The plugin ecosystem is extensive, the learning curve for content editors is low, and there is a large pool of developers who can work with it. For most businesses, WordPress is the default sensible choice when a custom CMS is not justified by the requirements.

The WordPress plugin ecosystem is a strength and a risk. You can find a plugin for almost anything, which means you can move quickly. But each plugin is maintained by an individual or team who can stop at any time, introduce a security vulnerability, or become incompatible with the next WordPress version. A WordPress site with 15 plugins is easier to build than one with 5, but it is also more fragile and more expensive to maintain. Every plugin you add is a dependency you are committed to updating indefinitely.

WordPress also carries a target. Because it is so widespread, WordPress sites are scanned and attacked automatically at scale. A WordPress site that is not actively maintained becomes a security risk. PHP security for business websites is a separate discipline from platform maintenance, but the two overlap significantly for WordPress sites since most are built on PHP. Budget for ongoing maintenance realistically before choosing WordPress as your platform.

The hosting decision matters significantly for WordPress. Cheap shared hosting environments often host dozens or hundreds of WordPress sites on the same server, which means a vulnerability in one site can potentially affect others. If you are considering WordPress, it is worth understanding how hosting quality affects both security and performance.

WordPress is still a strong choice when you have a trusted developer who can manage the maintenance, the feature requirements fit within the plugin ecosystem without extensive custom work, and the team is comfortable with the block editor or a page builder for routine content updates.

When Wix Is the Right Choice

Wix is the right choice for businesses that need a professional web presence quickly and do not have the budget or internal capability for ongoing developer involvement. The platform has improved significantly and the editor is genuinely easy to use for non-technical users.

The limitations are real but often overstated. Wix cannot do everything a custom-built site can do, but it can do most of what most small businesses need. The constraints become a problem when your business has genuinely unusual requirements: complex booking flows, custom integrations with third-party software, or very specific performance requirements.

The pricing model deserves scrutiny. Wix advertises attractively priced first-year deals but the renewal costs increase significantly. For a business that plans to be around for a long time, model the cost over three years, not one.

One practical advantage Wix offers is that the platform handles updates, security patches, and infrastructure maintenance without any action required from you. For a small business with no technical staff, this peace of mind has real value that is easy to underestimate until you have managed a self-hosted site through a security incident or unexpected downtime.

Making the Practical Call

The framework I use with clients is simple: answer the three questions honestly, calculate the three-year cost realistically, and choose the platform that your actual team can maintain, not the one that sounds most impressive or costs the least upfront.

A website that is live, maintained, and actually used is worth more than a technically superior website that is perpetually in development or has been abandoned because the maintenance burden was too high for the business to sustain. The best platform is the one you will actually maintain, and the second-best platform is the one that is actually good enough for what you need today.

If you are still unsure after working through these questions, the most common mistake is choosing a platform based on what it can theoretically do rather than what your team will actually use. A simple, well-maintained site on Wix will outperform a powerful, abandoned WordPress installation every time.