Paid ads can be useful for some professional practices in Ireland, especially where the enquiry value is high. Google can capture people already searching. Meta can help the right people notice a practice before they're ready to search. Neither fixes a weak page.
Before spending, look at the page a visitor will actually land on. Does it match the search they made? Does it explain the service clearly? Does it show why this practice is credible? Does it make the next step obvious without turning the page into a hard sell?
For accountants, that might mean a page for business owners who need year-end accounts, bookkeeping, payroll, or advisory support. For solicitors, it might mean a careful page around one service area, written with enough detail to reduce uncertainty without overpromising.
What happens after the click matters too. If the form feels cold, the phone number is buried, or the page gives no sense of what happens after contact, paid traffic will only make the problem more expensive.
A sensible sequence is foundation first, then visibility, then paid traffic where the channel, numbers and landing page all make sense. That's slower than launching ads tomorrow, but usually much less wasteful.