Check the message
Make it clear who you help, what you offer and why the visitor should contact you. Match the page to the promise made by the campaign or link that brought them there.
Remove obstacles
Review the website on a phone. Check that essential information is readable, buttons are easy to find and the enquiry form asks only for useful details.
Verify the whole flow
Send a test enquiry and confirm it reaches the team. Use reporting and customer feedback to understand where the journey breaks down, then change one meaningful part at a time.