You can request help before choosing a balloon size. Describe what visitors need to find, where the display is proposed and when you need it. Mark unknown dimensions and ask the supplier what information they need next.
Tell the supplier whether visitors miss the entrance, confuse adjoining units or need to find a temporary event. Include the address and a current photograph. This gives the discussion a specific purpose before you choose equipment.
Label what you know and what you need checked
List any measured space separately from estimates. Describe overhead features and delivery access without deciding whether the location is suitable yourself. Ask who needs to review the property and product requirements.
Give dates without assuming a delivery promise
Separate your desired arrival date from the first display date. Say whether those dates can move and who can receive the shipment. Ask the supplier to confirm the proposed format, scope and timing in writing.