We got into a similar situation last summer, when the developer delayed the issuance of keys for a whole month and a half, and there was absolutely nowhere to put things. An acquaintance advised using a comprehensive service, including the removal of property and its placement on a secure site. The managers from https://paradisemove.com/services/commercial-movers/ organized the entire process on a turnkey basis: they arrived, packed the furniture in a protective film, and drew up a detailed acceptance certificate describing the condition of the items. Then all this was taken to a clean, dry warehouse with constant climate control, where there is no dampness and rodents. When the repairs were finally completed, we ordered a return delivery. All the boxes were delivered in the same condition, the furniture was not damp, things did not smell of dust, the equipment turned on without problems. It is a very convenient service that eliminates the need to look for garages from friends or force relatives to rent boxes.