Answer the buying questions.
A visitor should be able to tell what you do, who it is for and what to do next without decoding your language. Lead with a useful outcome, show relevant work and explain what happens after an inquiry.
Make the action fit the purchase.
A simple service may suit a booking or a short request form. A complex project usually needs a conversation first. Use a clear action throughout the page and ask only for information needed to take that next step.
Finish the journey beyond the page.
A working form is only part of the job. Decide where the inquiry goes, who handles it and what the visitor sees after submitting. Check the mobile experience and the real destination before calling the website ready.