If your Stourport-on-Severn sale completes before the next property is ready, decide which belongings need storage and which must stay with you. Set aside documents, everyday clothing and anything needed during temporary accommodation. Make a separate inventory for the stored group.
Discuss the likely duration, access arrangements and notice for redelivery. If the destination is not yet fixed, explain that during quoting so the later transport can be addressed clearly. Managed storage should be an agreed service with collection and return arrangements, rather than an assumed extension of the removal day.
Work through what you will need while living between properties before the storage load is packed. Include working equipment, seasonal clothing and the documents needed for the next handover. Keep those items with you or in the agreed direct-delivery group so access to them does not depend on arranging a retrieval from storage.
Number the stored boxes and retain a contents list, with photographs and dimensions for larger furniture where useful. Ask how changes in duration or destination would be handled and which parts of the later delivery can be confirmed now. If the new address remains undecided, make that explicit in the quotation discussion. For a Stourport-on-Severn home change, the storage plan should explain the period between collection and final delivery as clearly as it explains the first moving day.