A finger presses a blue keyboard key labeled MIGRATION, replacing a standard key on a black computer keyboard—symbolizing moving a Website from WordPress or another Proprietary CMS.

Migrate from a proprietary CMS to WordPress

Stop depending on the one person who understands your custom system. Timelines vary widely on these (4-12+ weeks, since every system’s different) and migrations start at $3k.

A lot of businesses end up on a custom-built CMS because an agency built it years ago, or someone on staff put it together before moving on. That’s fine until the person who understood it is gone too. When that happens, we move you to WordPress, where support isn’t one company’s (or one developer’s) problem to hold hostage.

700+

800+

4.9/5

Why WordPress after proprietary CMS

Every migration should end with a site that’s better than what you had, not just different. Here’s what WordPress gives you that proprietary CMS doesn’t.

No more single-vendor lock-in.

WordPress is open source; anyone can work on it.

Your team can update the site without going through the original agency.

Real SEO tooling.

Every lever the proprietary CMS hid is standard.

Easier hiring.

Every dev knows WordPress; nobody knows your custom stack.

Lower total cost.

No license, no vendor invoice, no waiting on their roadmap.

What we handle in the migration

Content extraction from whatever’s there.

We assess your custom CMS’s database and file structure, then pull content out directly, however it’s stored.

Feature-by-feature rebuild.

We inventory every custom feature your current site has and rebuild each one in WordPress using a plugin or direct development, so nothing gets quietly dropped.

URL mapping and 301 redirects.

We map your existing URLs to WordPress and redirect everything, protecting whatever search equity your site has built up over the years.

SEO preservation.

Titles, meta descriptions, and alt text move over intact, and we clean up anything that was quietly holding your rankings back.

Design rebuild.

Your current design gets rebuilt as a proper, maintainable WordPress theme, matching what you have now or improving on it if you want a refresh.

Documentation, finally.

Once you’re on WordPress, you’re on a platform with real documentation and a massive support community, so you’re never back in this position again.

How we handle proprietary-CMS-specific gotchas

Every proprietary CMS is different, and that’s the core challenge. There’s no standard playbook the way there is for Wix or Squarespace, so the first real step is a technical audit: we get access to the database and codebase, figure out how content is actually structured, and reverse-engineer a migration path specific to your system. This takes longer upfront than a migration from a known platform, but it’s the only real way to do it.

The second challenge is separating real functionality from legacy cruft. Custom systems built over years often carry features that made sense at the time but nobody actually uses anymore. We review usage with you during the audit and only rebuild what your business actually needs, instead of recreating everything out of habit.

The third is that we genuinely can’t quote a timeline off the top of our head. We’ve seen “simple” custom CMSs turn out to be a tangle of undocumented dependencies, and we’ve seen scary-looking ones turn out to be pretty clean underneath. We won’t know which one you have until we look.

What to expect

We’ll give you a real number once we’ve actually looked at your site, not a guess. Every quote comes after a free 20-30 min call, and for a proprietary CMS that usually includes a short technical audit before we can commit to a firm timeline.

FAQs

Our old agency is gone and nobody understands our current CMS. Can you still migrate it?

Yes. It usually starts with a technical discovery phase where we get into the database and codebase ourselves to figure out how everything works, since there’s no one left to ask.

How do you know what to migrate if there’s no documentation?

We review the codebase and database directly and talk to your team about what the site actually needs to do day-to-day. Real usage tells us more than any documentation would anyway.

How long does a proprietary CMS migration take?

It varies more than any other migration we do, usually 4 to 12+ weeks. The source system is unknown until we audit it, so we won’t give you a firm number until we’ve actually looked.

Will we lose custom features that were built specifically for us?

Only the ones that turn out not to be worth keeping. We review what’s actually used with your team and rebuild the functionality that matters using WordPress plugins or custom development.

What if we don’t have login access or admin credentials anymore?

It happens more than you’d think, especially with internal tools built by someone who’s since left. We’ll work with your host or server admin to get access another way, whenever that’s possible.

What to look at next

Illustration of a rocket launching from a laptop screen with clouds in the background, symbolizing technology, innovation, or a digital startup.

Ready to leave your proprietary CMS?

Book a free 20-30 min call. We’ll look at your site, tell you what the migration would involve, and quote a real number.