The button is only part of the journey
An invitation to get in touch makes sense when people understand what they are enquiring about and what to expect. If the button follows only an abstract promise, they may still lack a reason to act.
Read your website as someone who has never met you. Is the offer clear? Who is it for? What will the first conversation involve?
Ask what you need to begin
A form starts a conversation. Each field should have a purpose. If a phone number is unnecessary for a reply, make it optional. If someone has not decided on a budget, let them say so.
The shortest form is not always the most useful. More complex work may need context. The point is to ask understandable questions for a reason.
The click is not the end
People need to know whether their form was submitted. A clear success state explains what happened. An error state should help them recover without losing their text.
Check the other side too: is the enquiry stored, and does the responsible person know where to find it? A polished confirmation is not enough if the message never arrives.
Try the actual journey
Open the site on a phone, choose a service and submit a test enquiry. Pay attention to the menu, field labels, keyboard and feedback.
This does not tell you everything about conversion, but it helps uncover obstacles you can remove. Further changes should be informed by real visitor questions and evidence.