The OpenCart version bump is the easy part. What actually breaks a store is everything around it: the theme built for 2.x, the payment extension that never got a 4.x release, the custom checkout tweak someone added three years ago. Run the upgrade blind and you find out in production, with customers watching. We don’t work that way. This bundle modernises your OpenCart store on a staging copy, sorts out what breaks before anyone sees it, and only goes live once checkout works from cart to confirmation.
Services we combine
Who it's for
This is for store owners stuck on OpenCart 2.x or an early 3.x, who know they’re behind on security and features but have been burned by, or scared off by, a botched upgrade. If you’ve read the forum threads where someone’s store broke on the way to 4 and went dark for a day, that’s exactly the outcome this bundle exists to avoid. If you just need a single extension fixed, that’s a smaller support job rather than a full modernize.
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Stuck on 2.x or 3.x
Behind on security, putting off the upgrade because the last attempt broke things.
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Inherited stores
You took over a store nobody documented and need it brought current safely.
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Growing shops
You've outgrown the old version's checkout and extension limits.
How it runs
We clone your store to staging first, always. Then we audit every extension and the theme against the target version and tell you, in plain terms, what carries over and what doesn’t. You approve the plan before we rebuild anything. We upgrade, fix what breaks, and retest the whole buying path on staging. Only then do we schedule the cutover, and we keep the old version ready to restore in case something slipped through.
Clone and audit
Staging copy built; extensions and theme checked against the target version.
Days 1 to 2Plan and approve
You get a plain-English list of what upgrades cleanly, what needs rebuilding, and the cost.
Day 3Upgrade and rebuild
Core upgraded, broken extensions and theme fixed, checkout retested on staging.
Days 4 to 8Cutover and support
Scheduled go-live with rollback ready, then a week of post-launch fixes.
Days 9 to 10Price, and what happens after
Pricing starts at $890 and depends on one thing: how much breaks. A clean store running stock extensions upgrades fast. A heavily customised store with abandoned payment modules takes more rebuild work. We quote the exact figure after the staging audit, so you decide with the real scope in front of you instead of a guess.
Tooling we lean on
Where this fits
This is the productised version of our OpenCart support work, packaged for the one job store owners put off longest. If the upgrade also needs new connections, a CRM, an ERP, or a marketplace feed, that’s our integrations work, and we’ll fold it into the same staging cycle. Moving hosts at the same time? Add our Migration Pack so it’s one project instead of two.
And when the thing that never got a 4.x release is the payment extension, our done-for-you OpenCart payment setup gets the gateway live and tested on its own.
Not sure you need the full rebuild yet? Read what to weigh before moving from OpenCart 3 to 4 first.
Ready to upgrade OpenCart without breaking the store?
Send the context — your stack, the scope, any complications. We come back with a confirmation or a couple of clarifying questions.