Are the visitors actually potential customers?
Check this first, because it is the cause more often than any other. Open Search Console, go to Performance, and read the queries your site appeared and was clicked for. On a lot of Huddersfield business sites the biggest queries are the business name, a job search, a supplier looking for a trade account, or a how-to question from someone who intends to do it themselves. None of those people were ever going to enquire, and their visits are not a problem to be solved.
Count only the searches a buyer would make. If those are a small share of the traffic, the fault is in who the site attracts, and it is fixed with pages written for the searches you want.
Are they landing on the right page?
Search Console shows this too, under Pages. Match each buyer search to the page that received it. A common pattern is a blog post ranking for a commercial search: someone types EV charger installation cost, lands on a two-year-old article about tariffs, reads it and leaves, because the page was written to inform and there is no route from it to the service. Another is the homepage catching every search, which means the visitor has to find the right service themselves, and most do not bother.
The fix is a page per service, and a link from any article to the service it relates to.
Does the page give them a reason to believe you?
Read the page as a stranger who has never heard of the business. Within a few seconds it needs to say what you do, where, and for whom, and then show proof: real photographs of the work, reviews with names on, jobs you can name, accreditations a buyer would look for. A page with a stock photograph and three paragraphs about quality gives a cautious buyer nothing to hold on to, and cautious is the normal state of someone about to spend money with a stranger.
Look at what the three sites above you carry on the same page. If they have photographs of real jobs and you have a picture of a handshake, that is the difference.
Can they actually get in touch?
Test the form yourself, on your phone, from the page that gets the traffic. Count the fields. Find the phone number. Send a test enquiry and time how long it takes to reach someone. We have seen forms that silently failed for months, numbers hidden in a footer, and a Contact page three clicks from the service page that ranked. Any one of those quietly deletes enquiries, and analytics records the visit as normal.
While you are there, check whether form submissions and calls are being tracked at all. If they are not, nobody can say which pages produce leads, and the whole question stays a guess.
What would Halizona do about traffic without leads?
Check the queries, then the landing pages, then the proof, then the form, in that order, because each fix only shows once the one before it is right. Most of the work turns out to be pages: a page for each service someone searches for, with the words they use, the proof they want and a short form on it.
RB Electrical in Halifax is what that looks like when it has been running for a while. EV charging, commercial and domestic work each have a page of their own with enough on it to rank in its own right, and the site has averaged around two organic leads a week for five years.
