Clarify the main message
A good headline states the outcome, the audience and what makes you different. If visitors have to guess what you offer, they are less likely to get in touch. The message should be concrete and easy to scan.
Shorten the path to the form
Long forms can reduce enquiries. Ask only for what you need for a first reply: name, phone or email, website and a few optional details.
Place proof next to your calls to action
A button works better when it is backed by trust: results, examples, reviews, years of experience or an explanation of the process.
Test on real data
Do not overhaul the whole site based on opinions. Measure clicks, form submissions, scrolling and traffic sources. Then optimise the pages that already get visits and can produce results quickly.