Start with the big cost: transport
List the full cost of the moving method you expect to use. For professional movers, include the quoted service, possible hourly overages, distance charges, special-item fees and any optional services you choose. For a rental vehicle, include the rental rate, mileage, fuel, tolls, parking and insurance or protection options.
If friends or family are helping, the transport cost may still include a van, fuel, parking, food and supplies. Use the realistic total rather than treating informal help as completely free.
Compare like with like
When comparing quotes, check what each price actually includes so a cheaper headline number does not hide packing, stairs, long-carry or travel charges.
Keep estimates separate
Record the expected amount first, then replace or compare it with the actual charge after the move so you can see where the budget changed.