WordPress vs a custom Next.js build: an honest cost and benefit breakdown

We get asked to justify a Next.js recommendation over WordPress more often than the reverse, which is a little backwards: WordPress runs a large share of the web for good reason, and a custom build is the wrong answer for plenty of businesses. The decision isn't about which platform is objectively better. It's about what a specific business actually needs from its site over the next three years, and neither platform wins that question by default.

Part of why this question gets asked backwards is that custom builds are what agencies like to showcase, so the recommendation can feel biased before the conversation even starts. We try to counter that by leading every one of these conversations with the case for WordPress first, since it's the platform more of our clients should probably be on, and only make the case for a custom build once we've genuinely ruled that out.

If a marketing team needs to publish new pages and blog posts weekly without involving a developer, WordPress's editing experience is still hard to beat, particularly with a modern block editor and a well-built theme. It also wins on plugin availability for common needs: booking systems, membership areas, basic eCommerce, most of these exist as mature, well-tested plugins rather than something we'd build from scratch. For a content-heavy site with a non-technical team doing the day-to-day editing, WordPress is often the more responsible recommendation, not the compromise one.

We've had clients arrive wanting a custom build purely because it sounded more modern, only to realize during scoping that their actual daily need, a marketing coordinator publishing two or three new pages a week without waiting on a developer, is precisely the use case WordPress was built to serve well. Talking them out of the more expensive option in that situation is the right call even though it's a smaller invoice for us.

A custom Next.js build earns its cost when performance is a competitive factor (a marketplace or eCommerce site where page speed directly affects conversion), when the product needs custom logic a plugin can't provide, or when the site needs to integrate tightly with an internal system through an API rather than a generic connector. It also wins when a business has been burned by plugin conflicts and unpredictable WordPress updates breaking a live site, which happens more often than most non-technical teams expect.

One recurring pattern: a business running a mature WordPress site with fifteen or twenty active plugins reaches a point where every plugin update carries real risk of breaking something else, and nobody on the team has the technical confidence to test updates safely before they go live. That accumulated fragility, more than any single feature gap, is often the real reason these clients eventually move to a custom build.

WordPress needs ongoing plugin and core updates, and skipping them is the single most common cause of the WordPress hacks we get called in to clean up after the fact. Budget for either a maintenance retainer or genuine in-house ownership of updates before choosing WordPress, not after the first security incident. A custom Next.js site has a different but real maintenance cost: dependency updates and hosting, typically lighter but not zero, and it requires a developer, not a marketer, to make structural changes.

We quote WordPress maintenance retainers starting around $200 to $400 a month for a typical marketing site, covering core and plugin updates, security monitoring, and a backup schedule, and we tell every WordPress client directly that skipping this is a real risk, not a hypothetical one. Roughly a third of the WordPress cleanup work we do in a given year traces back to a site that had gone twelve months or more without a single update.

For a typical 10 to 15 page marketing site, a solid WordPress build with a premium theme and light customization runs $6,000 to $12,000 with us. The equivalent custom Next.js build runs $15,000 to $30,000, mostly because more of it is bespoke code rather than configuration. That gap narrows fast once a site needs meaningfully custom functionality, at which point a heavily customized WordPress build can end up costing close to a custom build anyway, while still carrying WordPress's ongoing maintenance overhead.

We put this comparison in writing for every client weighing the decision, side by side, including a rough three-year total cost of ownership that accounts for hosting, maintenance, and the realistic cost of future changes on each platform. Seeing the three-year number, not just the launch cost, changes the decision for a meaningful share of clients who initially assumed WordPress was the cheaper option in every scenario.

We ask three questions before recommending either: who edits the site day to day and how technical are they, does anything about the product need custom logic beyond content and forms, and how much does page speed matter to the business's actual conversion funnel. Two or three WordPress answers point to WordPress. Two or three custom-build answers point to Next.js. Mixed answers are the most common outcome, and that's usually when headless WordPress, a WordPress backend feeding a custom front end, is worth the extra conversation.

We write the answer to all three questions into the proposal itself, in plain language, so a client can see exactly why we landed on a given recommendation rather than taking our word for it. It also gives them something concrete to push back on if we've misjudged their situation, which happens occasionally and is far easier to correct at the proposal stage than after a build has already started.

A business that correctly chose WordPress at launch sometimes genuinely outgrows it two or three years later, once the marketing team's editing needs are satisfied but the product itself needs custom logic the platform was never meant to carry. When that happens, we recommend a phased migration rather than a single cutover: moving the highest-value custom functionality to a new system first while marketing content stays on WordPress, then migrating content once the new system's editing experience is proven out.

This phased approach costs more in coordination than a clean rebuild, but it avoids the single biggest risk of a full migration: a marketing team suddenly unable to publish anything for the weeks it takes to stand up a new system's content tooling. We'd rather stretch a migration out by a few weeks than freeze a client's ability to publish during the transition.