How to choose a WordPress theme

What makes a good WordPress theme in 2025

Choosing the right WordPress theme is one of the most consequential decisions you will make for your website. Get it right, and you have a solid foundation for growth. Get it wrong, and you will spend months wrestling with limitations, slow page speeds, and frustrating workarounds.

A good WordPress theme in 2025 needs to do far more than look attractive in a demo. It needs to be lightweight, accessible, well-coded, and compatible with the direction you want to take your site. Most importantly, it needs to get out of your way so you can focus on content and conversions rather than fighting with settings panels.

The theme market has matured significantly, but this has created its own problems. There are now thousands of options, ranging from free themes in the WordPress repository to premium themes costing hundreds of pounds. Many promise the world but deliver bloated code, poor support, and designs that look nothing like their polished demos once you add your own content.

Understanding how to choose a WordPress theme properly requires looking beyond surface aesthetics and evaluating what actually matters for performance, usability, and long-term maintenance.

Free vs premium themes: which should you choose

The free versus premium debate is not as straightforward as you might think. A free theme is not automatically inferior, and a premium theme is not automatically worth the money.

Free themes from the official WordPress repository undergo a review process that checks for security issues and coding standards. Many are perfectly adequate for simple blogs or brochure sites where you have modest requirements and a tight budget.

Premium themes typically offer more features, dedicated support channels, and regular updates. However, they also tend to include functionality you do not need, which adds weight to your site. Some premium themes try to be everything to everyone, bundling sliders, page builders, and dozens of demo layouts that inflate the codebase significantly.

The question you should ask is not whether a theme is free or premium but whether it does what you need without doing too much of what you do not need.

Consider the following when making this decision:

• How much customisation do you genuinely require
• Do you have the budget for ongoing licence renewals
• Is the developer actively maintaining and updating the theme
• What happens to your site if the theme gets abandoned

For serious business websites, neither option is ideal. If you want a site that truly performs and reflects your brand accurately, a bespoke build will always outperform an off-the-shelf theme.

Essential features to look for before installing

Before you install any theme, you need to evaluate it against criteria that actually matter for your site’s success. A beautiful demo means nothing if the underlying code is poorly structured.

Mobile responsiveness is non-negotiable. Government digital service standards and search engines alike expect sites to work flawlessly on all devices. Test the theme demo on your phone and tablet before committing.

Update frequency tells you whether the developer is actively maintaining the theme. Check when the last update was released. If a theme has not been updated in over a year, walk away. WordPress core updates regularly, and themes that do not keep pace will eventually break or become security risks.

Plugin compatibility matters more than most people realise. If you plan to use WooCommerce, membership plugins, or specific SEO tools, verify that the theme works well with them. Conflicts between themes and plugins are one of the most common causes of WordPress headaches.

Documentation quality reflects the developer’s professionalism. Good themes come with clear, comprehensive documentation that helps you understand how to use features without guessing. Poor documentation usually indicates a developer who cuts corners elsewhere too.

How to evaluate theme performance and speed

Page speed directly affects your search rankings and conversion rates. A theme that loads slowly will hurt your business, regardless of how good it looks.

Before purchasing or installing any theme, run the demo through Google PageSpeed Insights. Look at both mobile and desktop scores. A well-built theme should score above 90 on desktop with a clean demo. If the developer’s own demo performs poorly, imagine how it will perform once you add your content, images, and plugins.

Check the theme’s file size and the number of HTTP requests it generates. Themes that bundle multiple JavaScript libraries, icon fonts, and CSS frameworks will be heavier than necessary. This bloat accumulates and becomes increasingly difficult to optimise away.

Be wary of themes that rely heavily on JavaScript for basic functionality. Animations, sliders, and fancy transitions might look impressive in demos but often add significant weight and can cause layout shifts that frustrate users and harm your Core Web Vitals scores.

The cleanest approach is always a lightweight theme that loads only what each page actually needs. This is one of the strongest arguments for bespoke development, where every line of code serves a purpose.

Checking theme accessibility and WCAG compliance

Accessibility is not optional. Beyond being the right thing to do, poor accessibility can expose you to legal risk and excludes potential customers from using your site.

Many themes fail basic accessibility requirements. Common issues include insufficient colour contrast, missing skip links, improper heading hierarchy, and forms that do not work with screen readers.

When evaluating a theme, check whether the developer mentions accessibility in their documentation or marketing. Run the demo through the WAVE accessibility evaluation tool to identify obvious problems. If the demo has accessibility errors, the theme is not ready for serious use.

Colour choices are particularly important. Your theme needs to support sufficient contrast ratios between text and backgrounds. I have written about this in detail in my article on colour for accessibility, branding and WCAG compliance.

Remember that fixing accessibility issues in a poorly coded theme can be extremely difficult. It is far better to start with a theme that meets WCAG standards from the outset.

Questions to ask before committing to a theme

Before you make a final decision, work through these questions honestly:

• Does the theme support my brand guidelines, or will I need to compromise on colours, fonts, or layouts
• How much of the demo’s visual appeal comes from features I will actually use
• What is the developer’s track record for responding to support requests
• Can I achieve my design vision within the theme’s constraints, or will I need custom CSS and workarounds
• If this theme is discontinued, how difficult would it be to migrate to something else
• Does the theme use a page builder, and if so, am I comfortable being locked into that ecosystem

The brand implementation question deserves particular attention. Many businesses discover too late that their chosen theme cannot accommodate their visual identity without extensive customisation. If you have established brand guidelines, a theme’s customisation options may prove too restrictive. This is another area where working with a professional designer pays dividends.

Red flags that should make you walk away

Some warning signs indicate a theme will cause problems down the line. Learn to recognise these before you commit.

Themes that have not been updated in over twelve months are risky. WordPress evolves constantly, and abandoned themes become security vulnerabilities and compatibility nightmares.

Bundled page builders should give you pause. While convenient, they lock you into a specific way of working and can make your content difficult to migrate if you ever want to change themes. The code output from page builders is also notoriously bloated.

Excessive feature lists often indicate a theme trying to be everything to everyone. If a theme boasts 50 plus demo layouts and hundreds of options, it is carrying a lot of code you will never use.

Poor reviews mentioning support issues are serious warnings. A theme developer who does not respond to support requests will leave you stranded when something breaks.

Themes that require you to install multiple plugins just to achieve the demo look are adding complexity and potential points of failure. Every additional plugin is another thing that can conflict, slow your site, or stop working after an update.

The case for bespoke development

After evaluating dozens of themes against all these criteria, many businesses reach the same conclusion: off-the-shelf themes involve too many compromises.

A bespoke WordPress build starts with your requirements rather than forcing you to work within someone else’s framework. You get exactly the features you need, nothing you do not, and code that is optimised for your specific use case.

Bespoke themes load faster because they contain only the code required for your site. They are easier to maintain because there are no complex theme options panels or bundled plugins to manage. They implement your brand accurately because they are designed around your guidelines rather than shoehorned into a generic template.

Yes, bespoke development costs more upfront. But when you factor in the time wasted wrestling with theme limitations, the ongoing licence fees, and the eventual rebuild when your theme can no longer keep pace with your ambitions, the total cost of ownership often favours going bespoke from the start.

If your website is important to your business, invest in building it properly. A bespoke WordPress theme built by someone who understands both design and development will serve you far better than even the most highly-rated premium theme.