Moving from HubSpot to GoHighLevel is routine, with one caveat people consistently underestimate.
Contacts, companies, deals and custom properties transfer well. Field mapping needs doing properly — by meaning rather than by matching column names — but the data itself moves.
Your workflows do not transfer. Automation is not portable between CRM platforms. HubSpot workflows, sequences, forms and landing pages are rebuilt in GoHighLevel rather than migrated. Anyone telling you otherwise is misleading you.
In practice the rebuild is usually an improvement, because it forces a review of automation that has accumulated unexamined over several years. But it is work, and it should be in the quote.
Our migrations start at £1,995 with a full test migration before any cutover, and your HubSpot account left intact until you confirm you are satisfied.