You can call Homestead and ask them to make your site inactive ! You still need to keep your site paid up. When you are ready to start using your site again you go to web builder and publish the site !!
Just leave a message here that you want to suspend your site for a period of time and Drew or Todd will do that too. Creating a facade is the easiest way for you to control it yourself. I simple to do. Open a text box > "On Vacation, back on Dec 31st" > drag the corner to cover the page > select a background color from your text settings menu.