Custom CMS vs WordPress: Which Does Your Business Need?

A custom CMS is a content management system built around how your business works, rather than an off-the-shelf platform bent to fit with plugins. Most small businesses don't need one written from scratch. What they need is a CMS that can be extended for what they do, and someone accountable for keeping it running.

This guide explains what a custom CMS is, how it compares with WordPress, where a custom build falls down, what it costs and how to choose. It also covers the middle ground most of our clients end up on: a managed platform with custom modules added where they are needed.

What Is a Custom CMS?

A custom CMS is content management software shaped to one business rather than to the widest possible market. Its content types, custom fields and user roles match the way you publish. A service page, a course, a booking and a case study each get the fields they need and nothing else.

That matters most to the people who update the site. A user-friendly interface built around your own content is quicker to learn than a general-purpose dashboard full of options you never touch. Custom CMS development comes in three broad levels.

Built from Scratch

Every part of the system, from the database to the editing screens, is written for one business. You get exactly what you asked for, and you pay for every feature, including the ones other platforms give away: user accounts, a media library, revision history and search.

Built on a Framework

A developer uses a web framework for the plumbing and builds the content management features on top. It is faster than starting from nothing, but the result is still a one-off system that only its developers fully understand.

A Platform Extended with Custom Modules

An established CMS supplies the common features, and custom modules add what is specific to your business. You get flexibility where it matters without paying to rebuild the basics. This is how we work, and we come back to it below.

Custom CMS vs WordPress

WordPress is the obvious comparison. It runs 40.2% of all websites, according to W3Techs, and most open-source platforms work in a similar way: a free core, extended with themes and plugins. Here is how the three routes compare.

When WordPress Is the Right Choice

WordPress is a sensible choice for a simple site that needs to launch cheaply, especially if someone on your team already knows it. Themes are inexpensive, the plugin library covers most common needs, and there is a large pool of developers who can pick up an existing site.

If your site is a handful of pages and a contact form, and you are happy to keep on top of updates, a custom build is unlikely to pay for itself.

Where Plugins Start to Cost You

The trouble starts as a site grows. Each new need tends to mean another plugin, and each plugin is separate code from a separate author, with its own update schedule. Over time that can mean slower pages, plugins that conflict after an update, and features that stop working when a plugin is abandoned.

None of this is inevitable. Keeping on top of it takes time, or technical expertise that many small businesses don't have in-house.

The Drawbacks of a Custom CMS

Custom solutions fix the plugin problem by creating other problems. Weigh these up before you commission custom builds of any kind.

Higher Upfront Cost

Every feature is built rather than installed, so a custom build costs more at the start. Features that come free with an off-the-shelf CMS, such as user accounts, media handling and revision history, all need building and testing too.

Depending on One Developer

A system written for one business is understood by the people who wrote it. If that developer or agency stops trading or stops answering, someone new has to learn the code before they can change anything. Ask who owns the code, and whether it is documented well enough for another developer to take over.

Maintenance Never Stops

Security patches, server updates and bug fixes carry on after launch. With a one-off system they fall to whoever built it, and they are a running cost that is easy to leave out of the budget.

Scalability needs thought too. A system built for today's visitors may need work before it can cope with high traffic from a campaign or a busy season.

The Middle Ground: A Managed Platform with Custom Modules

We don't write a new CMS for each client. Our clients' websites run on our own content management system, which we maintain for all of them, and most requirements that sound custom can be built on it. Features already live on client sites include online bookings with card payments, on-demand video courses, portfolios, service pages, articles and reviews.

Because every site shares one platform, improvements to it can reach every site. Content updates happen through the same editing screens, whichever features a site uses.

When Something Needs a Custom Module

Some requirements do need new code, such as custom workflows for approvals, or a CRM integration with third-party systems you already use. When that happens, we either build it as a paid add-on for your site, or build it as a reusable feature of the platform that other clients can use too. Either way it sits on a platform that is already maintained, rather than becoming a one-off system of its own.

Security, Maintenance and Support

On our platform plans, we handle hosting, security patches and updates, and every plan includes backups. Restoring a site from a backup is included at no extra cost, and if a platform site is hacked or compromised, putting it right is included in the plan.

No platform makes a site impossible to break into. What matters is that someone is responsible for keeping it patched, and that there is a way back if something goes wrong. Our managed websites page sets out what the plans cover.

Is a Custom CMS Good for SEO?

A custom CMS is good for SEO only if it is built well. Technical SEO depends on how pages are put together: clean HTML, fast loading, correct titles and headings, and a sitemap search engines can read. A custom build can get all of that right or all of it wrong.

Our platform is headless. A PHP API manages the website content, and a separate Next.js front end handles content delivery to visitors, so we control how each page is built for speed, search and user experience. That is a foundation, not a ranking. Rankings still depend on content and links, and if your current site isn't ranking, our guide to why a website ranks poorly covers the usual causes.

What Does a Custom CMS Cost?

A custom CMS built from scratch has no standard price, because the cost depends on the features, integrations and scale involved, as with any website development project. We quote custom modules per job for the same reason.

Sites on our platform have set prices. A brochure website of 4-6 pages is £2,500 + VAT, and a CMS business site of 10 or more pages starts at £4,500 + VAT. Platform plans start at £95 a month, on a 12-month minimum term. See our pricing for what each plan includes, or how much a website costs for a fuller breakdown.

Whichever route you take, budget for the costs that don't appear on the first quote: plugin or licence fees, hosting, developer time for updates, and the work of moving content if you ever switch.

How to Choose the Right CMS

Start with how your business works, not with the software. These questions narrow it down quickly:

• What content types do you publish, and does each need its own custom field or two?

• Who will make content updates, and how comfortable are they with a complicated dashboard?

• Which other systems, such as your CRM or booking tool, does the site need to connect to?

• Do you have busy periods, such as a seasonal peak or a big campaign?

• What can you spend at the start, and what can you spend every month?

• Who will keep it patched and updated after launch?

If the answers point to more than a simple site, but you don't want the cost and risk of a one-off system, a managed platform is worth a look. Book a free consultation and we'll talk through what your business needs.

Custom CMS FAQs