We have comparable exhibit space at MPM to yours. We rarely, if ever, offer discounts due to a section being blocked off, be it for a few hours, a day or several days. It is a bit easier for us as our special exhibit galleries are separate from the main exhibits but on occasion we do have to close down a section due to an event or reserved group. At those times we try our best to have signage out both at the admissions windows and on the floor stating why that section is closed and for how long as well as having our staff that greets guests inform them. If we have guests that get very upset about it we will sometimes offer rain-checks for general admission on another day.
One thing that has been suggested at our building is offering a member-swap with another local museum. That way members that come in and aren't happy have a neat perk for the time that a section/gallery is closed. It doesn't help with general guests but it is a nice benefit for members.
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Katherine Paul
Visitor Assistant
Milwaukee Public Museum
Milwaukee WI
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