Every year Treehouse Museum closes for a deeper cleaning. We replace worn carpet and scrub all our floors. We clean our giant tree and its thousands of leaves. We touch up paint and thoroughly clean each exhibit. We often install new exhibit pieces during this time, too. As you can imagine, it takes a bit of time and lots of staff and volunteers. This year we are closing on Monday, September 2 and we’ll reopen – all shiny and bright – on Tuesday, October 1. We extend memberships for an extra month so members don’t lose any time on their year-long membership.