Custom-built website vs WordPress: which suits a small business?

Short answer: for most service businesses whose site mainly builds trust and brings in enquiries, a custom-built site is faster and needs less upkeep, because there are no plugins to update. WordPress is the better choice if you publish often, run a WooCommerce shop or want to edit everything yourself. B63 builds custom by default and on WordPress when that fits.

We build both. Of the six client websites in our portfolio, five run on WordPress and one, tcp.bg, is custom-built, and our own site is custom-built too. So this isn’t a sales pitch for one side. It’s the rule we use when a client asks which one they should have.

The rule of thumb

Ask one question: who will change the site, and how often?

• If the site is mostly fixed pages (services, about, prices, contact) and changes a few times a month, custom-built wins. There is less to maintain, less to attack and less to slow it down.
• If you or your team will publish articles every week, manage products and stock, or rearrange pages without asking anyone, WordPress wins. That is exactly what a content management system is for.

Everything else in this article is detail behind that rule.

Custom-built vs WordPress, side by side

	Custom-built site	WordPress site
Speed on phones	Pages are delivered ready-made, with no database to query. Fast by default.	Depends on theme, plugins and hosting. Can be fast, often isn’t.
Security	No public admin login, no database, no plugins. Very little to attack.	WordPress, the theme and every plugin need updates. Plugins are the usual weak spot.
Editing	Changes are made by the developer, or by whoever holds the care plan.	You log in and edit text, images and pages yourself.
Features	Built as needed. Simple forms and maps are easy; complex features take development time.	Thousands of plugins for bookings, memberships, shops and more.
Hosting	Can run on almost any web server, including cheap static hosting.	Needs PHP and a database, and benefits from WordPress-tuned hosting.
Ongoing upkeep	Little: renewals, backups and occasional dependency updates.	Regular: core, theme and plugin updates, checked afterwards.
Running cost over three years	Hosting plus paid time for changes.	Hosting plus any premium plugin and theme licences, plus someone’s time for updates and fixes.
Portability	Standard files any developer can host or extend.	Very portable: exports, migration plugins and a huge pool of developers.

The security row is the one people underestimate. Patchstack’s State of WordPress Security in 2025 counted 7,966 new vulnerabilities in the WordPress ecosystem in 2024, and 96% of them were in plugins. WordPress itself is well maintained. The risk grows with every add-on.

What “custom-built” means at B63

“Custom” can sound like “a mystery system only one developer understands”. That isn’t what we mean, and it’s worth asking any studio what they mean before you agree.

When B63 builds a custom site:

• Every page is generated in advance as plain HTML. When a visitor opens a page, the server hands over a finished file. There is no database lookup and no plugin code running, which is why our own sites score 98–100 in Google’s Lighthouse test on mobile.
• It uses standard, open technology. HTML, CSS and well-known open-source build tools, not a closed page builder. Any competent web developer can read and change it.
• There is no lock-in at the end. On the monthly plan, after 24 months the code, files, content and domain are handed over to you and can be hosted anywhere. Our guide to who owns your website explains why that matters.

You can see the build approach on our website design page.

When WordPress is the right call

We’d recommend WordPress, and build on it, in these cases:

• You run an online shop. WooCommerce handles products, variations, stock, payments, shipping and order emails well. Our online store work is all WooCommerce for that reason, including a jewellery store with a large catalogue.
• You publish a lot. A news section, a recipe archive or a weekly blog written by your own staff is easier in WordPress.
• Several people edit the site. Roles, drafts and scheduled posts are built in.
• You need a specific plugin. Some booking, membership and course systems exist as mature WordPress plugins, and rebuilding them from scratch would cost more than they’re worth.
• You already have a WordPress site that works. If it’s fast enough, secure and you like editing it, there may be nothing to fix.

If you’re weighing WordPress against a hosted builder instead, see our Squarespace vs WordPress comparison.

Static website vs WordPress: is it the same as custom?

Mostly, yes. A “static site” is one where pages are prepared in advance rather than assembled on every visit. Most custom-built small-business sites today are static, including ours.

People sometimes worry that static means “can’t have a contact form” or “can’t change”. Neither is true. Forms post to a separate service, maps and videos embed as normal, and the content can change as often as you like: the site is simply rebuilt and published again, which takes a minute or two.

What a static site genuinely can’t do without extra work is anything that depends on a logged-in user: customer accounts, a members’ area or a shopping cart. That’s the line where WordPress (or a custom web app) takes over.

How do you edit a custom-built site?

This is the honest trade-off. On a custom site you usually don’t log in and drag things around yourself.

On B63’s monthly plan, that’s handled for you: you send a message (“new opening hours”, “add this team member”, “replace the photo on the services page”) and we make the change. Many owners prefer that, because they never wanted to learn an editor in the first place. If you do want to edit everything yourself, every day, that’s a good reason to choose WordPress.

Does a custom site cost more?

Not necessarily, and the comparison is rarely like for like. A WordPress site can be quicker to start with a theme, but it then needs regular updates for as long as it’s online. A custom site takes more care to design and build, then needs much less upkeep.

At B63 the price is the same either way:

• Monthly plan: €0 upfront, then €150 per month excl. VAT for 24 months, with hosting, updates, backups, changes and professional SEO included. After that, the site is yours.
• One-time build: from €550 incl. VAT, priced by what you need, custom or WordPress. You then host and maintain it yourself.

What the upkeep side costs on the open market is covered in our guide to website maintenance cost. Full details of our plans are on the pricing page.

Switching later, in either direction

Neither choice is permanent.

• WordPress to custom: the content is exported, pages are rebuilt, and every old address is redirected to its new one so Google keeps sending visitors. Your email isn’t affected if the switch is planned properly; see how to move a website without losing email.
• Custom to WordPress: the content and design move across, the theme is built to match, and the same redirect work applies.

The expensive move is leaving a closed builder that doesn’t let you export your site. Standard code and standard WordPress can both be moved.

FAQ

Is WordPress bad for a small business?

No. It runs a huge share of the web, and we build and look after WordPress sites ourselves. It simply needs regular, careful updates, and its speed depends on how lean the theme and plugins are. For a site that rarely changes, that upkeep buys you features you won’t use.

Can a custom-built site rank on Google as well as WordPress?

Yes. Google ranks pages, not platforms. What matters is the content, the structure, the speed and whether search engines can read the page, and a custom site can do all of that well. Speed is often easier to get right on a custom build.

What if my web developer disappears?

That’s the right question to ask about any site. Make sure you can get the files and the domain, and that the site is built on standard technology another developer can pick up. Both a well-built custom site and a WordPress site pass that test; a closed proprietary system doesn’t.

Which do you recommend for a law firm or an accountant?

Usually custom. Sites for law firms and accountants mostly explain services and build trust, change a few times a year, and benefit from being fast and secure. If you plan to publish frequent articles yourself, WordPress becomes the better fit.

Not sure which fits your business? Tell us what the site needs to do and we’ll recommend one, with the reasons.