Treat debt consolidation as a separate decision
Combining several debts into borrowing secured on your home changes more than the number of payments. Debts that were previously unsecured would put your home at risk if you could not meet the new arrangement. A lower interest rate does not automatically mean a lower overall cost if repayment is extended over many more years.
Consider the total repayable, any fees and alternatives before deciding. If you are already struggling with debts, free debt advice can help you understand options that do not involve further secured borrowing. Any proposed refinance must be assessed for your circumstances and purpose; it is not a guaranteed way to resolve arrears or make existing commitments affordable.
Think carefully before securing other debts against your home. By extending the term of those debts, you may increase the total amount you repay.