Answer
Do I need a website if I already have a Facebook page?
Short answer: if you want strangers to find you and trust you, yes. If every customer you will ever have already knows you, a Facebook page may be enough.
Here is the difference, one friend to another. A Facebook page is a room in someone else’s building. It works well for the people who already follow you. But the building has its own rules, and they change. Who sees your posts, what the page looks like, and whether a search engine shows it at all are decisions Facebook makes, not you.
A website is the building you own. Your name sits on the front, your hours and your prices are where you put them, and the page loads the same for everyone. When someone types what you do and your town into Google, a website is what can come up. A Facebook page can too, but it usually sits lower and shows a lot of other things around it.
Think about it as a ratio. A simple site costs a small fraction of what one new customer is worth to you. If it brings in a single extra job, it has paid for itself, and everything after that is the same site working while you are busy. The Facebook page costs nothing, and it also asks nothing of a stranger who has never heard of you. That is why it rarely brings them in.
You do not have to pick one. Keep the page for the people who know you, and use the website for the people who are still looking. Put the same phone number, the same hours and the same photos on both, so nobody has to guess which one is right.
If you want to see what that would look like for your business, the short form on carpenterwebworks.com takes a few minutes.